[PATCH v2 0/9] V4L2 fwnode support

[PATCH v2 0/9] V4L2 fwnode support

[Sakari Ailus]

Hello everyone, 

This patchset adds support for fwnode to V4L2. Besides OF, also ACPI based
systems can be supported this way. By using V4L2 fwnode, the individual 
drivers do not need to be aware of the underlying firmware implementation.
The patchset also removes specific V4L2 OF support and converts the 
affected drivers to use V4L2 fwnode.

The patchset depends on another patchset here:

<URL:http://www.spinics.net/lists/linux-acpi/msg72973.html>

v1 of the set can be found here:

<URL:http://www.spinics.net/lists/linux-media/msg111073.html>

changes since v1:

- Use existing dev_fwnode() instead of device_fwnode_handle() added by the
  ACPI graph patchset,

- Fix too long line of ^'s in ReST documentation.

Sakari Ailus (8):
  v4l: flash led class: Use fwnode_handle instead of device_node in init
  v4l: fwnode: Support generic fwnode for parsing standardised
    properties
  v4l: async: Add fwnode match support
  v4l: async: Provide interoperability between OF and fwnode matching
  v4l: Switch from V4L2 OF not V4L2 fwnode API
  v4l: media/drv-intf/soc_mediabus.h: include dependent header file
  docs-rst: media: Switch documentation to V4L2 fwnode API
  v4l: Remove V4L2 OF framework in favour of V4L2 fwnode framework

 Documentation/media/kapi/v4l2-core.rst         |   2 +-
 Documentation/media/kapi/v4l2-fwnode.rst       |   3 +
 Documentation/media/kapi/v4l2-of.rst           |   3 -
 drivers/leds/leds-aat1290.c                    |   5 +-
 drivers/leds/leds-max77693.c                   |   5 +-
 drivers/media/i2c/Kconfig                      |   9 +
 drivers/media/i2c/adv7604.c                    |   7 +-
 drivers/media/i2c/mt9v032.c                    |   7 +-
 drivers/media/i2c/ov2659.c                     |   8 +-
 drivers/media/i2c/s5c73m3/s5c73m3-core.c       |   7 +-
 drivers/media/i2c/s5k5baf.c                    |   6 +-
 drivers/media/i2c/smiapp/Kconfig               |   1 +
 drivers/media/i2c/smiapp/smiapp-core.c         |  29 +-
 drivers/media/i2c/tc358743.c                   |  11 +-
 drivers/media/i2c/tvp514x.c                    |   6 +-
 drivers/media/i2c/tvp5150.c                    |   7 +-
 drivers/media/i2c/tvp7002.c                    |   6 +-
 drivers/media/platform/Kconfig                 |   3 +
 drivers/media/platform/am437x/Kconfig          |   1 +
 drivers/media/platform/am437x/am437x-vpfe.c    |   8 +-
 drivers/media/platform/atmel/Kconfig           |   1 +
 drivers/media/platform/atmel/atmel-isc.c       |   8 +-
 drivers/media/platform/exynos4-is/Kconfig      |   2 +
 drivers/media/platform/exynos4-is/media-dev.c  |   6 +-
 drivers/media/platform/exynos4-is/mipi-csis.c  |   6 +-
 drivers/media/platform/omap3isp/isp.c          |  71 ++---
 drivers/media/platform/pxa_camera.c            |   7 +-
 drivers/media/platform/rcar-vin/Kconfig        |   1 +
 drivers/media/platform/rcar-vin/rcar-core.c    |   6 +-
 drivers/media/platform/soc_camera/Kconfig      |   1 +
 drivers/media/platform/soc_camera/atmel-isi.c  |   7 +-
 drivers/media/platform/soc_camera/soc_camera.c |   3 +-
 drivers/media/platform/ti-vpe/cal.c            |  11 +-
 drivers/media/platform/xilinx/Kconfig          |   1 +
 drivers/media/platform/xilinx/xilinx-vipp.c    |  59 +++--
 drivers/media/v4l2-core/Kconfig                |   3 +
 drivers/media/v4l2-core/Makefile               |   4 +-
 drivers/media/v4l2-core/v4l2-async.c           |  36 ++-
 drivers/media/v4l2-core/v4l2-flash-led-class.c |  11 +-
 drivers/media/v4l2-core/v4l2-fwnode.c          | 353 +++++++++++++++++++++++++
 drivers/media/v4l2-core/v4l2-of.c              | 327 -----------------------
 include/media/drv-intf/soc_mediabus.h          |   2 +
 include/media/v4l2-async.h                     |   7 +-
 include/media/v4l2-flash-led-class.h           |   4 +-
 include/media/v4l2-fwnode.h                    | 104 ++++++++
 include/media/v4l2-of.h                        | 128 ---------
 include/media/v4l2-subdev.h                    |   3 +
 47 files changed, 698 insertions(+), 608 deletions(-)
 create mode 100644 Documentation/media/kapi/v4l2-fwnode.rst
 delete mode 100644 Documentation/media/kapi/v4l2-of.rst
 create mode 100644 drivers/media/v4l2-core/v4l2-fwnode.c
 delete mode 100644 drivers/media/v4l2-core/v4l2-of.c
 create mode 100644 include/media/v4l2-fwnode.h
 delete mode 100644 include/media/v4l2-of.h

-- 
2.7.4

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[PATCH v2 2/8] v4l: fwnode: Support generic fwnode for parsing standardised properties

[Sakari Ailus]

The fwnode_handle is a more generic way than OF device_node to describe
firmware nodes. Instead of the OF API, use more generic fwnode API to
obtain the same information.

As the V4L2 fwnode support will be required by a small minority of e.g.
ACPI based systems (the same might actually go for OF), make this a module
instead of embedding it in the videodev module.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/media/v4l2-core/Kconfig       |   3 +
 drivers/media/v4l2-core/Makefile      |   1 +
 drivers/media/v4l2-core/v4l2-fwnode.c | 353 ++++++++++++++++++++++++++++++++++
 include/media/v4l2-fwnode.h           | 104 ++++++++++
 4 files changed, 461 insertions(+)
 create mode 100644 drivers/media/v4l2-core/v4l2-fwnode.c
 create mode 100644 include/media/v4l2-fwnode.h

diff --git a/drivers/media/v4l2-core/Kconfig b/drivers/media/v4l2-core/Kconfig
index 6b1b78f..a35c336 100644
--- a/drivers/media/v4l2-core/Kconfig
+++ b/drivers/media/v4l2-core/Kconfig
@@ -55,6 +55,9 @@ config V4L2_FLASH_LED_CLASS
 
 	  When in doubt, say N.
 
+config V4L2_FWNODE
+	tristate
+
 # Used by drivers that need Videobuf modules
 config VIDEOBUF_GEN
 	tristate
diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile
index 795a535..cf77a63 100644
--- a/drivers/media/v4l2-core/Makefile
+++ b/drivers/media/v4l2-core/Makefile
@@ -13,6 +13,7 @@ endif
 ifeq ($(CONFIG_OF),y)
   videodev-objs += v4l2-of.o
 endif
+obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o
 ifeq ($(CONFIG_TRACEPOINTS),y)
   videodev-objs += vb2-trace.o v4l2-trace.o
 endif
diff --git a/drivers/media/v4l2-core/v4l2-fwnode.c b/drivers/media/v4l2-core/v4l2-fwnode.c
new file mode 100644
index 0000000..4f69b11
--- /dev/null
+++ b/drivers/media/v4l2-core/v4l2-fwnode.c
@@ -0,0 +1,353 @@
+/*
+ * V4L2 fwnode binding parsing library
+ *
+ * Copyright (c) 2016 Intel Corporation.
+ * Author: Sakari Ailus <sakari.ailus@linux.intel.com>
+ *
+ * Copyright (C) 2012 - 2013 Samsung Electronics Co., Ltd.
+ * Author: Sylwester Nawrocki <s.nawrocki@samsung.com>
+ *
+ * Copyright (C) 2012 Renesas Electronics Corp.
+ * Author: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ */
+#include <linux/acpi.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/property.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/types.h>
+
+#include <media/v4l2-fwnode.h>
+
+static int v4l2_fwnode_endpoint_parse_csi_bus(struct fwnode_handle *fwn,
+					      struct v4l2_fwnode_endpoint *vfwn)
+{
+	struct v4l2_fwnode_bus_mipi_csi2 *bus = &vfwn->bus.mipi_csi2;
+	bool have_clk_lane = false;
+	unsigned int flags = 0, lanes_used = 0;
+	unsigned int i;
+	u32 v;
+	int rval;
+
+	rval = fwnode_property_read_u32_array(fwn, "data-lanes", NULL, 0);
+	if (rval > 0) {
+		u32 array[ARRAY_SIZE(bus->data_lanes)];
+
+		bus->num_data_lanes =
+			min_t(int, ARRAY_SIZE(bus->data_lanes), rval);
+
+		fwnode_property_read_u32_array(
+			fwn, "data-lanes", array, bus->num_data_lanes);
+
+		for (i = 0; i < bus->num_data_lanes; i++) {
+			if (lanes_used & BIT(array[i]))
+				pr_warn("duplicated lane %u in data-lanes\n",
+					array[i]);
+			lanes_used |= BIT(array[i]);
+
+			bus->data_lanes[i] = array[i];
+		}
+	}
+
+	rval = fwnode_property_read_u32_array(fwn, "lane-polarities", NULL, 0);
+	if (rval > 0) {
+		u32 array[ARRAY_SIZE(bus->lane_polarities)];
+
+		if (rval < 1 + bus->num_data_lanes /* clock + data */) {
+			pr_warn("too few lane-polarities entries (need %u, got %u)\n",
+				1 + bus->num_data_lanes, rval);
+			return -EINVAL;
+		}
+
+		fwnode_property_read_u32_array(
+			fwn, "lane-polarities", array, 1 + bus->num_data_lanes);
+
+		for (i = 0; i < 1 + bus->num_data_lanes; i++)
+			bus->lane_polarities[i] = array[i];
+	}
+
+	if (!fwnode_property_read_u32(fwn, "clock-lanes", &v)) {
+		if (lanes_used & BIT(v))
+			pr_warn("duplicated lane %u in clock-lanes\n", v);
+		lanes_used |= BIT(v);
+
+		bus->clock_lane = v;
+		have_clk_lane = true;
+	}
+
+	if (fwnode_property_present(fwn, "clock-noncontinuous"))
+		flags |= V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK;
+	else if (have_clk_lane || bus->num_data_lanes > 0)
+		flags |= V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
+
+	bus->flags = flags;
+	vfwn->bus_type = V4L2_MBUS_CSI2;
+
+	return 0;
+}
+
+static void v4l2_fwnode_endpoint_parse_parallel_bus(
+	struct fwnode_handle *fwn, struct v4l2_fwnode_endpoint *vfwn)
+{
+	struct v4l2_fwnode_bus_parallel *bus = &vfwn->bus.parallel;
+	unsigned int flags = 0;
+	u32 v;
+
+	if (!fwnode_property_read_u32(fwn, "hsync-active", &v))
+		flags |= v ? V4L2_MBUS_HSYNC_ACTIVE_HIGH :
+			V4L2_MBUS_HSYNC_ACTIVE_LOW;
+
+	if (!fwnode_property_read_u32(fwn, "vsync-active", &v))
+		flags |= v ? V4L2_MBUS_VSYNC_ACTIVE_HIGH :
+			V4L2_MBUS_VSYNC_ACTIVE_LOW;
+
+	if (!fwnode_property_read_u32(fwn, "field-even-active", &v))
+		flags |= v ? V4L2_MBUS_FIELD_EVEN_HIGH :
+			V4L2_MBUS_FIELD_EVEN_LOW;
+	if (flags)
+		vfwn->bus_type = V4L2_MBUS_PARALLEL;
+	else
+		vfwn->bus_type = V4L2_MBUS_BT656;
+
+	if (!fwnode_property_read_u32(fwn, "pclk-sample", &v))
+		flags |= v ? V4L2_MBUS_PCLK_SAMPLE_RISING :
+			V4L2_MBUS_PCLK_SAMPLE_FALLING;
+
+	if (!fwnode_property_read_u32(fwn, "data-active", &v))
+		flags |= v ? V4L2_MBUS_DATA_ACTIVE_HIGH :
+			V4L2_MBUS_DATA_ACTIVE_LOW;
+
+	if (fwnode_property_present(fwn, "slave-mode"))
+		flags |= V4L2_MBUS_SLAVE;
+	else
+		flags |= V4L2_MBUS_MASTER;
+
+	if (!fwnode_property_read_u32(fwn, "bus-width", &v))
+		bus->bus_width = v;
+
+	if (!fwnode_property_read_u32(fwn, "data-shift", &v))
+		bus->data_shift = v;
+
+	if (!fwnode_property_read_u32(fwn, "sync-on-green-active", &v))
+		flags |= v ? V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH :
+			V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW;
+
+	bus->flags = flags;
+
+}
+
+/**
+ * v4l2_fwnode_endpoint_parse() - parse all fwnode node properties
+ * @fwn: pointer to fwnode_handle
+ * @vfwn: pointer to the V4L2 fwnode data structure
+ *
+ * All properties are optional. If none are found, we don't set any flags.
+ * This means the port has a static configuration and no properties have
+ * to be specified explicitly.
+ * If any properties that identify the bus as parallel are found and
+ * slave-mode isn't set, we set V4L2_MBUS_MASTER. Similarly, if we recognise
+ * the bus as serial CSI-2 and clock-noncontinuous isn't set, we set the
+ * V4L2_MBUS_CSI2_CONTINUOUS_CLOCK flag.
+ * The caller should hold a reference to @node.
+ *
+ * NOTE: This function does not parse properties the size of which is
+ * variable without a low fixed limit. Please use
+ * v4l2_fwnode_endpoint_alloc_parse() in new drivers instead.
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+int v4l2_fwnode_endpoint_parse(struct fwnode_handle *fwn,
+			       struct v4l2_fwnode_endpoint *vfwn)
+{
+	int rval;
+
+	fwnode_graph_parse_endpoint(fwn, &vfwn->base);
+
+	/* Zero fields from bus_type to until the end */
+	memset(&vfwn->bus_type, 0, sizeof(*vfwn) -
+	       offsetof(typeof(*vfwn), bus_type));
+
+	rval = v4l2_fwnode_endpoint_parse_csi_bus(fwn, vfwn);
+	if (rval)
+		return rval;
+	/*
+	 * Parse the parallel video bus properties only if none
+	 * of the MIPI CSI-2 specific properties were found.
+	 */
+	if (vfwn->bus.mipi_csi2.flags == 0)
+		v4l2_fwnode_endpoint_parse_parallel_bus(fwn, vfwn);
+
+	return 0;
+}
+EXPORT_SYMBOL(v4l2_fwnode_endpoint_parse);
+
+/*
+ * v4l2_fwnode_endpoint_free() - free the V4L2 fwnode acquired by
+ * v4l2_fwnode_endpoint_alloc_parse()
+ * @fwn - the V4L2 fwnode the resources of which are to be released
+ *
+ * It is safe to call this function with NULL argument or on an
+ * V4L2 fwnode the parsing of which failed.
+ */
+void v4l2_fwnode_endpoint_free(struct v4l2_fwnode_endpoint *vfwn)
+{
+	if (IS_ERR_OR_NULL(vfwn))
+		return;
+
+	kfree(vfwn->link_frequencies);
+	kfree(vfwn);
+}
+EXPORT_SYMBOL(v4l2_fwnode_endpoint_free);
+
+/**
+ * v4l2_fwnode_endpoint_alloc_parse() - parse all fwnode node properties
+ * @node: pointer to fwnode_handle
+ *
+ * All properties are optional. If none are found, we don't set any flags.
+ * This means the port has a static configuration and no properties have
+ * to be specified explicitly.
+ * If any properties that identify the bus as parallel are found and
+ * slave-mode isn't set, we set V4L2_MBUS_MASTER. Similarly, if we recognise
+ * the bus as serial CSI-2 and clock-noncontinuous isn't set, we set the
+ * V4L2_MBUS_CSI2_CONTINUOUS_CLOCK flag.
+ * The caller should hold a reference to @node.
+ *
+ * v4l2_fwnode_endpoint_alloc_parse() has two important differences to
+ * v4l2_fwnode_endpoint_parse():
+ *
+ * 1. It also parses variable size data and
+ *
+ * 2. The memory it has allocated to store the variable size data must
+ *    be freed using v4l2_fwnode_endpoint_free() when no longer needed.
+ *
+ * Return: Pointer to v4l2_fwnode_endpoint if successful, on error a
+ * negative error code.
+ */
+struct v4l2_fwnode_endpoint *v4l2_fwnode_endpoint_alloc_parse(
+	struct fwnode_handle *fwn)
+{
+	struct v4l2_fwnode_endpoint *vfwn;
+	int rval;
+
+	vfwn = kzalloc(sizeof(*vfwn), GFP_KERNEL);
+	if (!vfwn)
+		return ERR_PTR(-ENOMEM);
+
+	rval = v4l2_fwnode_endpoint_parse(fwn, vfwn);
+	if (rval < 0)
+		goto out_err;
+
+	rval = fwnode_property_read_u64_array(fwn, "link-frequencies",
+					      NULL, 0);
+
+	if (rval < 0)
+		goto out_err;
+
+	vfwn->link_frequencies =
+		kmalloc_array(rval, sizeof(*vfwn->link_frequencies),
+			      GFP_KERNEL);
+	if (!vfwn->link_frequencies) {
+		rval = -ENOMEM;
+		goto out_err;
+	}
+
+	vfwn->nr_of_link_frequencies = rval;
+
+	rval = fwnode_property_read_u64_array(
+		fwn, "link-frequencies", vfwn->link_frequencies,
+		vfwn->nr_of_link_frequencies);
+	if (rval < 0)
+		goto out_err;
+
+	return vfwn;
+
+out_err:
+	v4l2_fwnode_endpoint_free(vfwn);
+	return ERR_PTR(rval);
+}
+EXPORT_SYMBOL(v4l2_fwnode_endpoint_alloc_parse);
+
+/**
+ * v4l2_fwnode_endpoint_parse_link() - parse a link between two endpoints
+ * @node: pointer to the fwnode at the local end of the link
+ * @link: pointer to the V4L2 fwnode link data structure
+ *
+ * Fill the link structure with the local and remote nodes and port numbers.
+ * The local_node and remote_node fields are set to point to the local and
+ * remote port's parent nodes respectively (the port parent node being the
+ * parent node of the port node if that node isn't a 'ports' node, or the
+ * grand-parent node of the port node otherwise).
+ *
+ * A reference is taken to both the local and remote nodes, the caller
+ * must use v4l2_fwnode_endpoint_put_link() to drop the references
+ * when done with the link.
+ *
+ * Return: 0 on success, or -ENOLINK if the remote fwnode can't be found.
+ */
+int v4l2_fwnode_parse_link(struct fwnode_handle *__fwn,
+			   struct v4l2_fwnode_link *link)
+{
+	struct fwnode_handle *fwn;
+	const char *port_prop = is_of_node(__fwn) ? "reg" : "port";
+
+	memset(link, 0, sizeof(*link));
+
+	fwn = fwnode_get_parent(__fwn);
+	fwnode_property_read_u32(fwn, port_prop, &link->local_port);
+	fwn = fwnode_get_next_parent(fwn);
+	if (is_of_node(fwn)) {
+		if (of_node_cmp(to_of_node(fwn)->name, "ports") == 0)
+			fwn = fwnode_get_next_parent(fwn);
+	} else {
+		/* The "ports" node is always there in ACPI. */
+		fwn = fwnode_get_next_parent(fwn);
+	}
+	link->local_node = fwn;
+
+	fwn = fwnode_graph_get_remote_endpoint(fwn);
+	if (!fwn) {
+		fwnode_handle_put(fwn);
+		return -ENOLINK;
+	}
+
+	fwn = fwnode_get_parent(fwn);
+	fwnode_property_read_u32(fwn, port_prop, &link->remote_port);
+	fwn = fwnode_get_next_parent(fwn);
+	if (is_of_node(fwn)) {
+		if (of_node_cmp(to_of_node(fwn)->name, "ports") == 0)
+			fwn = fwnode_get_next_parent(fwn);
+	} else {
+		/* The "ports" node is always there in ACPI. */
+		fwn = fwnode_get_next_parent(fwn);
+	}
+	link->remote_node = fwn;
+
+	return 0;
+}
+EXPORT_SYMBOL(v4l2_fwnode_parse_link);
+
+/**
+ * v4l2_fwnode_put_link() - drop references to nodes in a link
+ * @link: pointer to the V4L2 fwnode link data structure
+ *
+ * Drop references to the local and remote nodes in the link. This
+ * function must be called on every link parsed with
+ * v4l2_fwnode_parse_link().
+ */
+void v4l2_fwnode_put_link(struct v4l2_fwnode_link *link)
+{
+	fwnode_handle_put(link->local_node);
+	fwnode_handle_put(link->remote_node);
+}
+EXPORT_SYMBOL(v4l2_fwnode_put_link);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Sakari Ailus <sakari.ailus@linux.intel.com>");
+MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>");
+MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>");
diff --git a/include/media/v4l2-fwnode.h b/include/media/v4l2-fwnode.h
new file mode 100644
index 0000000..a675d8a
--- /dev/null
+++ b/include/media/v4l2-fwnode.h
@@ -0,0 +1,104 @@
+/*
+ * V4L2 fwnode binding parsing library
+ *
+ * Copyright (c) 2016 Intel Corporation.
+ * Author: Sakari Ailus <sakari.ailus@linux.intel.com>
+ *
+ * Copyright (C) 2012 - 2013 Samsung Electronics Co., Ltd.
+ * Author: Sylwester Nawrocki <s.nawrocki@samsung.com>
+ *
+ * Copyright (C) 2012 Renesas Electronics Corp.
+ * Author: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ */
+#ifndef _V4L2_FWNODE_H
+#define _V4L2_FWNODE_H
+
+#include <linux/list.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/of_graph.h>
+
+#include <media/v4l2-mediabus.h>
+
+struct fwnode_handle;
+
+/**
+ * struct v4l2_fwnode_bus_mipi_csi2 - MIPI CSI-2 bus data structure
+ * @flags: media bus (V4L2_MBUS_*) flags
+ * @data_lanes: an array of physical data lane indexes
+ * @clock_lane: physical lane index of the clock lane
+ * @num_data_lanes: number of data lanes
+ * @lane_polarities: polarity of the lanes. The order is the same of
+ *		   the physical lanes.
+ */
+struct v4l2_fwnode_bus_mipi_csi2 {
+	unsigned int flags;
+	unsigned char data_lanes[4];
+	unsigned char clock_lane;
+	unsigned short num_data_lanes;
+	bool lane_polarities[5];
+};
+
+/**
+ * struct v4l2_fwnode_bus_parallel - parallel data bus data structure
+ * @flags: media bus (V4L2_MBUS_*) flags
+ * @bus_width: bus width in bits
+ * @data_shift: data shift in bits
+ */
+struct v4l2_fwnode_bus_parallel {
+	unsigned int flags;
+	unsigned char bus_width;
+	unsigned char data_shift;
+};
+
+/**
+ * struct v4l2_fwnode_endpoint - the endpoint data structure
+ * @base: fwnode endpoint of the v4l2_fwnode
+ * @bus_type: bus type
+ * @bus: bus configuration data structure
+ * @link_frequencies: array of supported link frequencies
+ * @nr_of_link_frequencies: number of elements in link_frequenccies array
+ */
+struct v4l2_fwnode_endpoint {
+	struct fwnode_endpoint base;
+	/*
+	 * Fields below this line will be zeroed by
+	 * v4l2_fwnode_parse_endpoint()
+	 */
+	enum v4l2_mbus_type bus_type;
+	union {
+		struct v4l2_fwnode_bus_parallel parallel;
+		struct v4l2_fwnode_bus_mipi_csi2 mipi_csi2;
+	} bus;
+	u64 *link_frequencies;
+	unsigned int nr_of_link_frequencies;
+};
+
+/**
+ * struct v4l2_fwnode_link - a link between two endpoints
+ * @local_node: pointer to device_node of this endpoint
+ * @local_port: identifier of the port this endpoint belongs to
+ * @remote_node: pointer to device_node of the remote endpoint
+ * @remote_port: identifier of the port the remote endpoint belongs to
+ */
+struct v4l2_fwnode_link {
+	struct fwnode_handle *local_node;
+	unsigned int local_port;
+	struct fwnode_handle *remote_node;
+	unsigned int remote_port;
+};
+
+int v4l2_fwnode_endpoint_parse(struct fwnode_handle *fwn,
+			       struct v4l2_fwnode_endpoint *vfwn);
+struct v4l2_fwnode_endpoint *v4l2_fwnode_endpoint_alloc_parse(
+	struct fwnode_handle *fwn);
+void v4l2_fwnode_endpoint_free(struct v4l2_fwnode_endpoint *vfwn);
+int v4l2_fwnode_parse_link(struct fwnode_handle *fwn,
+			   struct v4l2_fwnode_link *link);
+void v4l2_fwnode_put_link(struct v4l2_fwnode_link *link);
+
+#endif /* _V4L2_FWNODE_H */
-- 
2.7.4

[PATCH v2 3/8] v4l: async: Add fwnode match support

[Sakari Ailus]

Add fwnode matching to complement OF node matching. And fwnode may also be
an OF node.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/media/v4l2-core/v4l2-async.c | 12 ++++++++++++
 include/media/v4l2-async.h           |  5 +++++
 include/media/v4l2-subdev.h          |  3 +++
 3 files changed, 20 insertions(+)

diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
index 96cc733..384ad5e 100644
--- a/drivers/media/v4l2-core/v4l2-async.c
+++ b/drivers/media/v4l2-core/v4l2-async.c
@@ -46,6 +46,11 @@ static bool match_of(struct v4l2_subdev *sd, struct v4l2_async_subdev *asd)
 			    of_node_full_name(asd->match.of.node));
 }
 
+static bool match_fwnode(struct v4l2_subdev *sd, struct v4l2_async_subdev *asd)
+{
+	return sd->fwnode == asd->match.fwnode.fwn;
+}
+
 static bool match_custom(struct v4l2_subdev *sd, struct v4l2_async_subdev *asd)
 {
 	if (!asd->match.custom.match)
@@ -80,6 +85,9 @@ static struct v4l2_async_subdev *v4l2_async_belongs(struct v4l2_async_notifier *
 		case V4L2_ASYNC_MATCH_OF:
 			match = match_of;
 			break;
+		case V4L2_ASYNC_MATCH_FWNODE:
+			match = match_fwnode;
+			break;
 		default:
 			/* Cannot happen, unless someone breaks us */
 			WARN_ON(true);
@@ -158,6 +166,7 @@ int v4l2_async_notifier_register(struct v4l2_device *v4l2_dev,
 		case V4L2_ASYNC_MATCH_DEVNAME:
 		case V4L2_ASYNC_MATCH_I2C:
 		case V4L2_ASYNC_MATCH_OF:
+		case V4L2_ASYNC_MATCH_FWNODE:
 			break;
 		default:
 			dev_err(notifier->v4l2_dev ? notifier->v4l2_dev->dev : NULL,
@@ -282,6 +291,9 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd)
 	 */
 	if (!sd->of_node && sd->dev)
 		sd->of_node = sd->dev->of_node;
+	if (!sd->fwnode && sd->dev)
+		sd->fwnode = sd->dev->of_node ?
+			&sd->dev->of_node->fwnode : sd->dev->fwnode;
 
 	mutex_lock(&list_lock);
 
diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h
index 8e2a236..8f552d2 100644
--- a/include/media/v4l2-async.h
+++ b/include/media/v4l2-async.h
@@ -32,6 +32,7 @@ struct v4l2_async_notifier;
  * @V4L2_ASYNC_MATCH_DEVNAME: Match will use the device name
  * @V4L2_ASYNC_MATCH_I2C: Match will check for I2C adapter ID and address
  * @V4L2_ASYNC_MATCH_OF: Match will use OF node
+ * @V4L2_ASYNC_MATCH_FWNODE: Match will use firmware node
  *
  * This enum is used by the asyncrhronous sub-device logic to define the
  * algorithm that will be used to match an asynchronous device.
@@ -41,6 +42,7 @@ enum v4l2_async_match_type {
 	V4L2_ASYNC_MATCH_DEVNAME,
 	V4L2_ASYNC_MATCH_I2C,
 	V4L2_ASYNC_MATCH_OF,
+	V4L2_ASYNC_MATCH_FWNODE,
 };
 
 /**
@@ -58,6 +60,9 @@ struct v4l2_async_subdev {
 			const struct device_node *node;
 		} of;
 		struct {
+			struct fwnode_handle *fwn;
+		} fwnode;
+		struct {
 			const char *name;
 		} device_name;
 		struct {
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 0ab1c5d..5f1669c 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -788,6 +788,8 @@ struct v4l2_subdev_platform_data {
  * @devnode: subdev device node
  * @dev: pointer to the physical device, if any
  * @of_node: The device_node of the subdev, usually the same as dev->of_node.
+ * @fwnode: The fwnode_handle of the subdev, usually the same as
+ *	    either dev->of_node->fwnode or dev->fwnode (whichever is non-NULL).
  * @async_list: Links this subdev to a global subdev_list or @notifier->done
  *	list.
  * @asd: Pointer to respective &struct v4l2_async_subdev.
@@ -819,6 +821,7 @@ struct v4l2_subdev {
 	struct video_device *devnode;
 	struct device *dev;
 	struct device_node *of_node;
+	struct fwnode_handle *fwnode;
 	struct list_head async_list;
 	struct v4l2_async_subdev *asd;
 	struct v4l2_async_notifier *notifier;
-- 
2.7.4

[PATCH v2 4/8] v4l: async: Provide interoperability between OF and fwnode matching

[Sakari Ailus]

OF and fwnode support are separated in V4L2 and individual drivers may
implement one of them. Sub-devices do not match with a notifier
expecting sub-devices with fwnodes, nor the other way around.

Fix this by checking for sub-device's of_node field in fwnode match and
fwnode field in OF match.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/media/v4l2-core/v4l2-async.c | 26 +++++++++++++++++++++++---
 include/media/v4l2-async.h           |  2 +-
 2 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
index 384ad5e..7f5d804 100644
--- a/drivers/media/v4l2-core/v4l2-async.c
+++ b/drivers/media/v4l2-core/v4l2-async.c
@@ -14,6 +14,7 @@
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/types.h>
@@ -40,15 +41,34 @@ static bool match_devname(struct v4l2_subdev *sd,
 	return !strcmp(asd->match.device_name.name, dev_name(sd->dev));
 }
 
+static bool fwnode_cmp(struct fwnode_handle *one,
+		       struct fwnode_handle *theother)
+{
+	if (!one || !theother)
+		return false;
+
+	if (one->type != theother->type)
+		return false;
+
+	if (is_of_node(one))
+		return !of_node_cmp(of_node_full_name(to_of_node(one)),
+				    of_node_full_name(to_of_node(theother)));
+	else
+		return one == theother;
+}
+
 static bool match_of(struct v4l2_subdev *sd, struct v4l2_async_subdev *asd)
 {
-	return !of_node_cmp(of_node_full_name(sd->of_node),
-			    of_node_full_name(asd->match.of.node));
+	return fwnode_cmp(sd->of_node ?
+			  of_fwnode_handle(sd->of_node) : sd->fwnode,
+			  of_fwnode_handle(asd->match.of.node));
 }
 
 static bool match_fwnode(struct v4l2_subdev *sd, struct v4l2_async_subdev *asd)
 {
-	return sd->fwnode == asd->match.fwnode.fwn;
+	return fwnode_cmp(sd->of_node ?
+			  of_fwnode_handle(sd->of_node) : sd->fwnode,
+					   asd->match.fwnode.fwn);
 }
 
 static bool match_custom(struct v4l2_subdev *sd, struct v4l2_async_subdev *asd)
diff --git a/include/media/v4l2-async.h b/include/media/v4l2-async.h
index 8f552d2..df8b682 100644
--- a/include/media/v4l2-async.h
+++ b/include/media/v4l2-async.h
@@ -57,7 +57,7 @@ struct v4l2_async_subdev {
 	enum v4l2_async_match_type match_type;
 	union {
 		struct {
-			const struct device_node *node;
+			struct device_node *node;
 		} of;
 		struct {
 			struct fwnode_handle *fwn;
-- 
2.7.4

Re: [PATCH v2 4/8] v4l: async: Provide interoperability between OF and fwnode matching

[kbuild test robot]

[-- Attachment #1: Type: text/plain, Size: 2510 bytes --]

Hi Sakari,

[auto build test ERROR on linuxtv-media/master]
[also build test ERROR on v4.11-rc5 next-20170406]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Sakari-Ailus/v4l-flash-led-class-Use-fwnode_handle-instead-of-device_node-in-init/20170407-133451
base:   git://linuxtv.org/media_tree.git master
config: i386-randconfig-x016-201714 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All error/warnings (new ones prefixed by >>):

   drivers/media/v4l2-core/v4l2-async.c: In function 'match_of':
>> drivers/media/v4l2-core/v4l2-async.c:63:6: error: implicit declaration of function 'of_fwnode_handle' [-Werror=implicit-function-declaration]
         of_fwnode_handle(sd->of_node) : sd->fwnode,
         ^~~~~~~~~~~~~~~~
>> drivers/media/v4l2-core/v4l2-async.c:63:36: warning: pointer/integer type mismatch in conditional expression
         of_fwnode_handle(sd->of_node) : sd->fwnode,
                                       ^
>> drivers/media/v4l2-core/v4l2-async.c:64:6: warning: passing argument 2 of 'fwnode_cmp' makes pointer from integer without a cast [-Wint-conversion]
         of_fwnode_handle(asd->match.of.node));
         ^~~~~~~~~~~~~~~~
   drivers/media/v4l2-core/v4l2-async.c:44:13: note: expected 'struct fwnode_handle *' but argument is of type 'int'
    static bool fwnode_cmp(struct fwnode_handle *one,
                ^~~~~~~~~~
   drivers/media/v4l2-core/v4l2-async.c: In function 'match_fwnode':
   drivers/media/v4l2-core/v4l2-async.c:70:36: warning: pointer/integer type mismatch in conditional expression
         of_fwnode_handle(sd->of_node) : sd->fwnode,
                                       ^
   cc1: some warnings being treated as errors

vim +/of_fwnode_handle +63 drivers/media/v4l2-core/v4l2-async.c

    57			return one == theother;
    58	}
    59	
    60	static bool match_of(struct v4l2_subdev *sd, struct v4l2_async_subdev *asd)
    61	{
    62		return fwnode_cmp(sd->of_node ?
  > 63				  of_fwnode_handle(sd->of_node) : sd->fwnode,
  > 64				  of_fwnode_handle(asd->match.of.node));
    65	}
    66	
    67	static bool match_fwnode(struct v4l2_subdev *sd, struct v4l2_async_subdev *asd)

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 24847 bytes --]

[PATCH v2 5/8] v4l: Switch from V4L2 OF not V4L2 fwnode API

[Sakari Ailus]

Switch users of the v4l2_of_ APIs to the more generic v4l2_fwnode_ APIs.

Existing OF matching continues to be supported. omap3isp and smiapp
drivers are converted to fwnode matching as well.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Benoit Parrot <bparrot@ti.com> # i2c/ov2569.c, am437x/am437x-vpfe.c and ti-vpe/cal.c
---
 drivers/media/i2c/Kconfig                      |  9 ++++
 drivers/media/i2c/adv7604.c                    |  7 +--
 drivers/media/i2c/mt9v032.c                    |  7 +--
 drivers/media/i2c/ov2659.c                     |  8 +--
 drivers/media/i2c/s5c73m3/s5c73m3-core.c       |  7 +--
 drivers/media/i2c/s5k5baf.c                    |  6 +--
 drivers/media/i2c/smiapp/Kconfig               |  1 +
 drivers/media/i2c/smiapp/smiapp-core.c         | 29 ++++++-----
 drivers/media/i2c/tc358743.c                   | 11 ++--
 drivers/media/i2c/tvp514x.c                    |  6 +--
 drivers/media/i2c/tvp5150.c                    |  7 +--
 drivers/media/i2c/tvp7002.c                    |  6 +--
 drivers/media/platform/Kconfig                 |  3 ++
 drivers/media/platform/am437x/Kconfig          |  1 +
 drivers/media/platform/am437x/am437x-vpfe.c    |  8 +--
 drivers/media/platform/atmel/Kconfig           |  1 +
 drivers/media/platform/atmel/atmel-isc.c       |  8 +--
 drivers/media/platform/exynos4-is/Kconfig      |  2 +
 drivers/media/platform/exynos4-is/media-dev.c  |  6 +--
 drivers/media/platform/exynos4-is/mipi-csis.c  |  6 +--
 drivers/media/platform/omap3isp/isp.c          | 71 +++++++++++++-------------
 drivers/media/platform/pxa_camera.c            |  7 +--
 drivers/media/platform/rcar-vin/Kconfig        |  1 +
 drivers/media/platform/rcar-vin/rcar-core.c    |  6 +--
 drivers/media/platform/soc_camera/Kconfig      |  1 +
 drivers/media/platform/soc_camera/atmel-isi.c  |  7 +--
 drivers/media/platform/soc_camera/soc_camera.c |  3 +-
 drivers/media/platform/ti-vpe/cal.c            | 11 ++--
 drivers/media/platform/xilinx/Kconfig          |  1 +
 drivers/media/platform/xilinx/xilinx-vipp.c    | 59 +++++++++++----------
 include/media/v4l2-fwnode.h                    |  4 +-
 31 files changed, 176 insertions(+), 134 deletions(-)

diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index cee1dae..6b2423a 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -210,6 +210,7 @@ config VIDEO_ADV7604
 	depends on GPIOLIB || COMPILE_TEST
 	select HDMI
 	select MEDIA_CEC_EDID
+	select V4L2_FWNODE
 	---help---
 	  Support for the Analog Devices ADV7604 video decoder.
 
@@ -324,6 +325,7 @@ config VIDEO_TC358743
 	tristate "Toshiba TC358743 decoder"
 	depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
 	select HDMI
+	select V4L2_FWNODE
 	---help---
 	  Support for the Toshiba TC358743 HDMI to MIPI CSI-2 bridge.
 
@@ -333,6 +335,7 @@ config VIDEO_TC358743
 config VIDEO_TVP514X
 	tristate "Texas Instruments TVP514x video decoder"
 	depends on VIDEO_V4L2 && I2C
+	select V4L2_FWNODE
 	---help---
 	  This is a Video4Linux2 sensor-level driver for the TI TVP5146/47
 	  decoder. It is currently working with the TI OMAP3 camera
@@ -344,6 +347,7 @@ config VIDEO_TVP514X
 config VIDEO_TVP5150
 	tristate "Texas Instruments TVP5150 video decoder"
 	depends on VIDEO_V4L2 && I2C
+	select V4L2_FWNODE
 	---help---
 	  Support for the Texas Instruments TVP5150 video decoder.
 
@@ -353,6 +357,7 @@ config VIDEO_TVP5150
 config VIDEO_TVP7002
 	tristate "Texas Instruments TVP7002 video decoder"
 	depends on VIDEO_V4L2 && I2C
+	select V4L2_FWNODE
 	---help---
 	  Support for the Texas Instruments TVP7002 video decoder.
 
@@ -524,6 +529,7 @@ config VIDEO_OV2659
 	tristate "OmniVision OV2659 sensor support"
 	depends on VIDEO_V4L2 && I2C
 	depends on MEDIA_CAMERA_SUPPORT
+	select V4L2_FWNODE
 	---help---
 	  This is a Video4Linux2 sensor-level driver for the OmniVision
 	  OV2659 camera.
@@ -616,6 +622,7 @@ config VIDEO_MT9V032
 	depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
 	depends on MEDIA_CAMERA_SUPPORT
 	select REGMAP_I2C
+	select V4L2_FWNODE
 	---help---
 	  This is a Video4Linux2 sensor-level driver for the Micron
 	  MT9V032 752x480 CMOS sensor.
@@ -663,6 +670,7 @@ config VIDEO_S5K4ECGX
 config VIDEO_S5K5BAF
 	tristate "Samsung S5K5BAF sensor support"
 	depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+	select V4L2_FWNODE
 	---help---
 	  This is a V4L2 sensor-level driver for Samsung S5K5BAF 2M
 	  camera sensor with an embedded SoC image signal processor.
@@ -673,6 +681,7 @@ source "drivers/media/i2c/et8ek8/Kconfig"
 config VIDEO_S5C73M3
 	tristate "Samsung S5C73M3 sensor support"
 	depends on I2C && SPI && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+	select V4L2_FWNODE
 	---help---
 	  This is a V4L2 sensor-level driver for Samsung S5C73M3
 	  8 Mpixel camera.
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index d8bf435..9281e54 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -33,6 +33,7 @@
 #include <linux/i2c.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of_graph.h>
 #include <linux/slab.h>
 #include <linux/v4l2-dv-timings.h>
 #include <linux/videodev2.h>
@@ -45,7 +46,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-event.h>
 #include <media/v4l2-dv-timings.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 static int debug;
 module_param(debug, int, 0644);
@@ -3069,7 +3070,7 @@ MODULE_DEVICE_TABLE(of, adv76xx_of_id);
 
 static int adv76xx_parse_dt(struct adv76xx_state *state)
 {
-	struct v4l2_of_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg;
 	struct device_node *endpoint;
 	struct device_node *np;
 	unsigned int flags;
@@ -3083,7 +3084,7 @@ static int adv76xx_parse_dt(struct adv76xx_state *state)
 	if (!endpoint)
 		return -EINVAL;
 
-	ret = v4l2_of_parse_endpoint(endpoint, &bus_cfg);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &bus_cfg);
 	if (ret) {
 		of_node_put(endpoint);
 		return ret;
diff --git a/drivers/media/i2c/mt9v032.c b/drivers/media/i2c/mt9v032.c
index 2e7a6e6..8a43064 100644
--- a/drivers/media/i2c/mt9v032.c
+++ b/drivers/media/i2c/mt9v032.c
@@ -19,6 +19,7 @@
 #include <linux/log2.h>
 #include <linux/mutex.h>
 #include <linux/of.h>
+#include <linux/of_graph.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
 #include <linux/videodev2.h>
@@ -28,7 +29,7 @@
 #include <media/i2c/mt9v032.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-device.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-subdev.h>
 
 /* The first four rows are black rows. The active area spans 753x481 pixels. */
@@ -979,7 +980,7 @@ static struct mt9v032_platform_data *
 mt9v032_get_pdata(struct i2c_client *client)
 {
 	struct mt9v032_platform_data *pdata = NULL;
-	struct v4l2_of_endpoint endpoint;
+	struct v4l2_fwnode_endpoint endpoint;
 	struct device_node *np;
 	struct property *prop;
 
@@ -990,7 +991,7 @@ mt9v032_get_pdata(struct i2c_client *client)
 	if (!np)
 		return NULL;
 
-	if (v4l2_of_parse_endpoint(np, &endpoint) < 0)
+	if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(np), &endpoint) < 0)
 		goto done;
 
 	pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
diff --git a/drivers/media/i2c/ov2659.c b/drivers/media/i2c/ov2659.c
index 6e63672..545ca3f 100644
--- a/drivers/media/i2c/ov2659.c
+++ b/drivers/media/i2c/ov2659.c
@@ -42,9 +42,9 @@
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-event.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-image-sizes.h>
 #include <media/v4l2-mediabus.h>
-#include <media/v4l2-of.h>
 #include <media/v4l2-subdev.h>
 
 #define DRIVER_NAME "ov2659"
@@ -1346,7 +1346,7 @@ static struct ov2659_platform_data *
 ov2659_get_pdata(struct i2c_client *client)
 {
 	struct ov2659_platform_data *pdata;
-	struct v4l2_of_endpoint *bus_cfg;
+	struct v4l2_fwnode_endpoint *bus_cfg;
 	struct device_node *endpoint;
 
 	if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node)
@@ -1356,7 +1356,7 @@ ov2659_get_pdata(struct i2c_client *client)
 	if (!endpoint)
 		return NULL;
 
-	bus_cfg = v4l2_of_alloc_parse_endpoint(endpoint);
+	bus_cfg = v4l2_fwnode_endpoint_alloc_parse(of_fwnode_handle(endpoint));
 	if (IS_ERR(bus_cfg)) {
 		pdata = NULL;
 		goto done;
@@ -1376,7 +1376,7 @@ ov2659_get_pdata(struct i2c_client *client)
 	pdata->link_frequency = bus_cfg->link_frequencies[0];
 
 done:
-	v4l2_of_free_endpoint(bus_cfg);
+	v4l2_fwnode_endpoint_free(bus_cfg);
 	of_node_put(endpoint);
 	return pdata;
 }
diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-core.c b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
index 3844853..f434fb2 100644
--- a/drivers/media/i2c/s5c73m3/s5c73m3-core.c
+++ b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
@@ -24,6 +24,7 @@
 #include <linux/media.h>
 #include <linux/module.h>
 #include <linux/of_gpio.h>
+#include <linux/of_graph.h>
 #include <linux/regulator/consumer.h>
 #include <linux/sizes.h>
 #include <linux/slab.h>
@@ -35,7 +36,7 @@
 #include <media/v4l2-subdev.h>
 #include <media/v4l2-mediabus.h>
 #include <media/i2c/s5c73m3.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include "s5c73m3.h"
 
@@ -1602,7 +1603,7 @@ static int s5c73m3_get_platform_data(struct s5c73m3 *state)
 	const struct s5c73m3_platform_data *pdata = dev->platform_data;
 	struct device_node *node = dev->of_node;
 	struct device_node *node_ep;
-	struct v4l2_of_endpoint ep;
+	struct v4l2_fwnode_endpoint ep;
 	int ret;
 
 	if (!node) {
@@ -1639,7 +1640,7 @@ static int s5c73m3_get_platform_data(struct s5c73m3 *state)
 		return 0;
 	}
 
-	ret = v4l2_of_parse_endpoint(node_ep, &ep);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(node_ep), &ep);
 	of_node_put(node_ep);
 	if (ret)
 		return ret;
diff --git a/drivers/media/i2c/s5k5baf.c b/drivers/media/i2c/s5k5baf.c
index db82ed0..962051b 100644
--- a/drivers/media/i2c/s5k5baf.c
+++ b/drivers/media/i2c/s5k5baf.c
@@ -30,7 +30,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-subdev.h>
 #include <media/v4l2-mediabus.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 static int debug;
 module_param(debug, int, 0644);
@@ -1841,7 +1841,7 @@ static int s5k5baf_parse_device_node(struct s5k5baf *state, struct device *dev)
 {
 	struct device_node *node = dev->of_node;
 	struct device_node *node_ep;
-	struct v4l2_of_endpoint ep;
+	struct v4l2_fwnode_endpoint ep;
 	int ret;
 
 	if (!node) {
@@ -1868,7 +1868,7 @@ static int s5k5baf_parse_device_node(struct s5k5baf *state, struct device *dev)
 		return -EINVAL;
 	}
 
-	ret = v4l2_of_parse_endpoint(node_ep, &ep);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(node_ep), &ep);
 	of_node_put(node_ep);
 	if (ret)
 		return ret;
diff --git a/drivers/media/i2c/smiapp/Kconfig b/drivers/media/i2c/smiapp/Kconfig
index 3149cda..f59718d 100644
--- a/drivers/media/i2c/smiapp/Kconfig
+++ b/drivers/media/i2c/smiapp/Kconfig
@@ -3,5 +3,6 @@ config VIDEO_SMIAPP
 	depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && HAVE_CLK
 	depends on MEDIA_CAMERA_SUPPORT
 	select VIDEO_SMIAPP_PLL
+	select V4L2_FWNODE
 	---help---
 	  This is a generic driver for SMIA++/SMIA camera modules.
diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c
index f4e92bd..4e28220 100644
--- a/drivers/media/i2c/smiapp/smiapp-core.c
+++ b/drivers/media/i2c/smiapp/smiapp-core.c
@@ -27,12 +27,13 @@
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
 #include <linux/pm_runtime.h>
+#include <linux/property.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 #include <linux/smiapp.h>
 #include <linux/v4l2-mediabus.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-device.h>
-#include <media/v4l2-of.h>
 
 #include "smiapp.h"
 
@@ -2784,19 +2785,20 @@ static int __maybe_unused smiapp_resume(struct device *dev)
 static struct smiapp_hwconfig *smiapp_get_hwconfig(struct device *dev)
 {
 	struct smiapp_hwconfig *hwcfg;
-	struct v4l2_of_endpoint *bus_cfg;
-	struct device_node *ep;
+	struct v4l2_fwnode_endpoint *bus_cfg;
+	struct fwnode_handle *ep;
+	struct fwnode_handle *fwn = dev_fwnode(dev);
 	int i;
 	int rval;
 
-	if (!dev->of_node)
+	if (!fwn)
 		return dev->platform_data;
 
-	ep = of_graph_get_next_endpoint(dev->of_node, NULL);
+	ep = fwnode_graph_get_next_endpoint(fwn, NULL);
 	if (!ep)
 		return NULL;
 
-	bus_cfg = v4l2_of_alloc_parse_endpoint(ep);
+	bus_cfg = v4l2_fwnode_endpoint_alloc_parse(ep);
 	if (IS_ERR(bus_cfg))
 		goto out_err;
 
@@ -2817,11 +2819,10 @@ static struct smiapp_hwconfig *smiapp_get_hwconfig(struct device *dev)
 	dev_dbg(dev, "lanes %u\n", hwcfg->lanes);
 
 	/* NVM size is not mandatory */
-	of_property_read_u32(dev->of_node, "nokia,nvm-size",
-				    &hwcfg->nvm_size);
+	fwnode_property_read_u32(fwn, "nokia,nvm-size", &hwcfg->nvm_size);
 
-	rval = of_property_read_u32(dev->of_node, "clock-frequency",
-				    &hwcfg->ext_clk);
+	rval = fwnode_property_read_u32(fwn, "clock-frequency",
+					&hwcfg->ext_clk);
 	if (rval) {
 		dev_warn(dev, "can't get clock-frequency\n");
 		goto out_err;
@@ -2846,13 +2847,13 @@ static struct smiapp_hwconfig *smiapp_get_hwconfig(struct device *dev)
 		dev_dbg(dev, "freq %d: %lld\n", i, hwcfg->op_sys_clock[i]);
 	}
 
-	v4l2_of_free_endpoint(bus_cfg);
-	of_node_put(ep);
+	v4l2_fwnode_endpoint_free(bus_cfg);
+	fwnode_handle_put(ep);
 	return hwcfg;
 
 out_err:
-	v4l2_of_free_endpoint(bus_cfg);
-	of_node_put(ep);
+	v4l2_fwnode_endpoint_free(bus_cfg);
+	fwnode_handle_put(ep);
 	return NULL;
 }
 
diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
index bf9d925..c4c894b 100644
--- a/drivers/media/i2c/tc358743.c
+++ b/drivers/media/i2c/tc358743.c
@@ -33,6 +33,7 @@
 #include <linux/delay.h>
 #include <linux/gpio/consumer.h>
 #include <linux/interrupt.h>
+#include <linux/of_graph.h>
 #include <linux/videodev2.h>
 #include <linux/workqueue.h>
 #include <linux/v4l2-dv-timings.h>
@@ -41,7 +42,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-event.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/i2c/tc358743.h>
 
 #include "tc358743_regs.h"
@@ -76,7 +77,7 @@ static const struct v4l2_dv_timings_cap tc358743_timings_cap = {
 
 struct tc358743_state {
 	struct tc358743_platform_data pdata;
-	struct v4l2_of_bus_mipi_csi2 bus;
+	struct v4l2_fwnode_bus_mipi_csi2 bus;
 	struct v4l2_subdev sd;
 	struct media_pad pad;
 	struct v4l2_ctrl_handler hdl;
@@ -1695,7 +1696,7 @@ static void tc358743_gpio_reset(struct tc358743_state *state)
 static int tc358743_probe_of(struct tc358743_state *state)
 {
 	struct device *dev = &state->i2c_client->dev;
-	struct v4l2_of_endpoint *endpoint;
+	struct v4l2_fwnode_endpoint *endpoint;
 	struct device_node *ep;
 	struct clk *refclk;
 	u32 bps_pr_lane;
@@ -1715,7 +1716,7 @@ static int tc358743_probe_of(struct tc358743_state *state)
 		return -EINVAL;
 	}
 
-	endpoint = v4l2_of_alloc_parse_endpoint(ep);
+	endpoint = v4l2_fwnode_endpoint_alloc_parse(of_fwnode_handle(ep));
 	if (IS_ERR(endpoint)) {
 		dev_err(dev, "failed to parse endpoint\n");
 		return PTR_ERR(endpoint);
@@ -1803,7 +1804,7 @@ static int tc358743_probe_of(struct tc358743_state *state)
 disable_clk:
 	clk_disable_unprepare(refclk);
 free_endpoint:
-	v4l2_of_free_endpoint(endpoint);
+	v4l2_fwnode_endpoint_free(endpoint);
 	return ret;
 }
 #else
diff --git a/drivers/media/i2c/tvp514x.c b/drivers/media/i2c/tvp514x.c
index 07853d2..ad2df99 100644
--- a/drivers/media/i2c/tvp514x.c
+++ b/drivers/media/i2c/tvp514x.c
@@ -38,7 +38,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-mediabus.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-ctrls.h>
 #include <media/i2c/tvp514x.h>
 #include <media/media-entity.h>
@@ -998,7 +998,7 @@ static struct tvp514x_platform_data *
 tvp514x_get_pdata(struct i2c_client *client)
 {
 	struct tvp514x_platform_data *pdata = NULL;
-	struct v4l2_of_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg;
 	struct device_node *endpoint;
 	unsigned int flags;
 
@@ -1009,7 +1009,7 @@ tvp514x_get_pdata(struct i2c_client *client)
 	if (!endpoint)
 		return NULL;
 
-	if (v4l2_of_parse_endpoint(endpoint, &bus_cfg))
+	if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &bus_cfg))
 		goto done;
 
 	pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index 48646a7..dff30a0 100644
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -12,10 +12,11 @@
 #include <linux/delay.h>
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
+#include <linux/of_graph.h>
 #include <media/v4l2-async.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-ctrls.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-mc.h>
 
 #include "tvp5150_reg.h"
@@ -1358,7 +1359,7 @@ static int tvp5150_init(struct i2c_client *c)
 
 static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
 {
-	struct v4l2_of_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg;
 	struct device_node *ep;
 #ifdef CONFIG_MEDIA_CONTROLLER
 	struct device_node *connectors, *child;
@@ -1373,7 +1374,7 @@ static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
 	if (!ep)
 		return -EINVAL;
 
-	ret = v4l2_of_parse_endpoint(ep, &bus_cfg);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg);
 	if (ret)
 		goto err;
 
diff --git a/drivers/media/i2c/tvp7002.c b/drivers/media/i2c/tvp7002.c
index 4c11901..a26c1a3 100644
--- a/drivers/media/i2c/tvp7002.c
+++ b/drivers/media/i2c/tvp7002.c
@@ -33,7 +33,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ctrls.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include "tvp7002_reg.h"
 
@@ -889,7 +889,7 @@ static const struct v4l2_subdev_ops tvp7002_ops = {
 static struct tvp7002_config *
 tvp7002_get_pdata(struct i2c_client *client)
 {
-	struct v4l2_of_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg;
 	struct tvp7002_config *pdata = NULL;
 	struct device_node *endpoint;
 	unsigned int flags;
@@ -901,7 +901,7 @@ tvp7002_get_pdata(struct i2c_client *client)
 	if (!endpoint)
 		return NULL;
 
-	if (v4l2_of_parse_endpoint(endpoint, &bus_cfg))
+	if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &bus_cfg))
 		goto done;
 
 	pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index ab0bb48..10862f0 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -82,6 +82,7 @@ config VIDEO_OMAP3
 	select ARM_DMA_USE_IOMMU
 	select VIDEOBUF2_DMA_CONTIG
 	select MFD_SYSCON
+	select V4L2_FWNODE
 	---help---
 	  Driver for an OMAP 3 camera controller.
 
@@ -97,6 +98,7 @@ config VIDEO_PXA27x
 	depends on PXA27x || COMPILE_TEST
 	select VIDEOBUF2_DMA_SG
 	select SG_SPLIT
+	select V4L2_FWNODE
 	---help---
 	  This is a v4l2 driver for the PXA27x Quick Capture Interface
 
@@ -127,6 +129,7 @@ config VIDEO_TI_CAL
 	depends on SOC_DRA7XX || COMPILE_TEST
 	depends on HAS_DMA
 	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
 	default n
 	---help---
 	  Support for the TI CAL (Camera Adaptation Layer) block
diff --git a/drivers/media/platform/am437x/Kconfig b/drivers/media/platform/am437x/Kconfig
index 42d9c18..160e77e 100644
--- a/drivers/media/platform/am437x/Kconfig
+++ b/drivers/media/platform/am437x/Kconfig
@@ -3,6 +3,7 @@ config VIDEO_AM437X_VPFE
 	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && HAS_DMA
 	depends on SOC_AM43XX || COMPILE_TEST
 	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
 	help
 	   Support for AM437x Video Processing Front End based Video
 	   Capture Driver.
diff --git a/drivers/media/platform/am437x/am437x-vpfe.c b/drivers/media/platform/am437x/am437x-vpfe.c
index 05489a4..3eb0bd2 100644
--- a/drivers/media/platform/am437x/am437x-vpfe.c
+++ b/drivers/media/platform/am437x/am437x-vpfe.c
@@ -26,6 +26,7 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/module.h>
+#include <linux/of_graph.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
@@ -36,7 +37,7 @@
 #include <media/v4l2-common.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-event.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include "am437x-vpfe.h"
 
@@ -2419,7 +2420,7 @@ static struct vpfe_config *
 vpfe_get_pdata(struct platform_device *pdev)
 {
 	struct device_node *endpoint = NULL;
-	struct v4l2_of_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg;
 	struct vpfe_subdev_info *sdinfo;
 	struct vpfe_config *pdata;
 	unsigned int flags;
@@ -2463,7 +2464,8 @@ vpfe_get_pdata(struct platform_device *pdev)
 			sdinfo->vpfe_param.if_type = VPFE_RAW_BAYER;
 		}
 
-		err = v4l2_of_parse_endpoint(endpoint, &bus_cfg);
+		err = v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint),
+						 &bus_cfg);
 		if (err) {
 			dev_err(&pdev->dev, "Could not parse the endpoint\n");
 			goto done;
diff --git a/drivers/media/platform/atmel/Kconfig b/drivers/media/platform/atmel/Kconfig
index 867dca2..3dbc89c 100644
--- a/drivers/media/platform/atmel/Kconfig
+++ b/drivers/media/platform/atmel/Kconfig
@@ -4,6 +4,7 @@ config VIDEO_ATMEL_ISC
 	depends on ARCH_AT91 || COMPILE_TEST
 	select VIDEOBUF2_DMA_CONTIG
 	select REGMAP_MMIO
+	select V4L2_FWNODE
 	help
 	   This module makes the ATMEL Image Sensor Controller available
 	   as a v4l2 device.
\ No newline at end of file
diff --git a/drivers/media/platform/atmel/atmel-isc.c b/drivers/media/platform/atmel/atmel-isc.c
index b380a7d..8e78da2 100644
--- a/drivers/media/platform/atmel/atmel-isc.c
+++ b/drivers/media/platform/atmel/atmel-isc.c
@@ -32,6 +32,7 @@
 #include <linux/math64.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_graph.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
@@ -42,7 +43,7 @@
 #include <media/v4l2-event.h>
 #include <media/v4l2-image-sizes.h>
 #include <media/v4l2-ioctl.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-subdev.h>
 #include <media/videobuf2-dma-contig.h>
 
@@ -1683,7 +1684,7 @@ static int isc_parse_dt(struct device *dev, struct isc_device *isc)
 {
 	struct device_node *np = dev->of_node;
 	struct device_node *epn = NULL, *rem;
-	struct v4l2_of_endpoint v4l2_epn;
+	struct v4l2_fwnode_endpoint v4l2_epn;
 	struct isc_subdev_entity *subdev_entity;
 	unsigned int flags;
 	int ret;
@@ -1702,7 +1703,8 @@ static int isc_parse_dt(struct device *dev, struct isc_device *isc)
 			continue;
 		}
 
-		ret = v4l2_of_parse_endpoint(epn, &v4l2_epn);
+		ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(epn),
+						 &v4l2_epn);
 		if (ret) {
 			of_node_put(rem);
 			ret = -EINVAL;
diff --git a/drivers/media/platform/exynos4-is/Kconfig b/drivers/media/platform/exynos4-is/Kconfig
index 57d42c6..c480efb 100644
--- a/drivers/media/platform/exynos4-is/Kconfig
+++ b/drivers/media/platform/exynos4-is/Kconfig
@@ -4,6 +4,7 @@ config VIDEO_SAMSUNG_EXYNOS4_IS
 	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
 	depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
 	depends on OF && COMMON_CLK
+	select V4L2_FWNODE
 	help
 	  Say Y here to enable camera host interface devices for
 	  Samsung S5P and EXYNOS SoC series.
@@ -32,6 +33,7 @@ config VIDEO_S5P_MIPI_CSIS
 	tristate "S5P/EXYNOS MIPI-CSI2 receiver (MIPI-CSIS) driver"
 	depends on REGULATOR
 	select GENERIC_PHY
+	select V4L2_FWNODE
 	help
 	  This is a V4L2 driver for Samsung S5P and EXYNOS4 SoC MIPI-CSI2
 	  receiver (MIPI-CSIS) devices.
diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
index e82450e9..4a1808c 100644
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c
@@ -29,7 +29,7 @@
 #include <linux/slab.h>
 #include <media/v4l2-async.h>
 #include <media/v4l2-ctrls.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/media-device.h>
 #include <media/drv-intf/exynos-fimc.h>
 
@@ -388,7 +388,7 @@ static int fimc_md_parse_port_node(struct fimc_md *fmd,
 {
 	struct fimc_source_info *pd = &fmd->sensor[index].pdata;
 	struct device_node *rem, *ep, *np;
-	struct v4l2_of_endpoint endpoint;
+	struct v4l2_fwnode_endpoint endpoint;
 	int ret;
 
 	/* Assume here a port node can have only one endpoint node. */
@@ -396,7 +396,7 @@ static int fimc_md_parse_port_node(struct fimc_md *fmd,
 	if (!ep)
 		return 0;
 
-	ret = v4l2_of_parse_endpoint(ep, &endpoint);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &endpoint);
 	if (ret) {
 		of_node_put(ep);
 		return ret;
diff --git a/drivers/media/platform/exynos4-is/mipi-csis.c b/drivers/media/platform/exynos4-is/mipi-csis.c
index f819b29..98c8987 100644
--- a/drivers/media/platform/exynos4-is/mipi-csis.c
+++ b/drivers/media/platform/exynos4-is/mipi-csis.c
@@ -30,7 +30,7 @@
 #include <linux/spinlock.h>
 #include <linux/videodev2.h>
 #include <media/drv-intf/exynos-fimc.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-subdev.h>
 
 #include "mipi-csis.h"
@@ -718,7 +718,7 @@ static int s5pcsis_parse_dt(struct platform_device *pdev,
 			    struct csis_state *state)
 {
 	struct device_node *node = pdev->dev.of_node;
-	struct v4l2_of_endpoint endpoint;
+	struct v4l2_fwnode_endpoint endpoint;
 	int ret;
 
 	if (of_property_read_u32(node, "clock-frequency",
@@ -735,7 +735,7 @@ static int s5pcsis_parse_dt(struct platform_device *pdev,
 		return -EINVAL;
 	}
 	/* Get port node and validate MIPI-CSI channel id. */
-	ret = v4l2_of_parse_endpoint(node, &endpoint);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(node), &endpoint);
 	if (ret)
 		goto err;
 
diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c
index 084ecf4a..95850b9 100644
--- a/drivers/media/platform/omap3isp/isp.c
+++ b/drivers/media/platform/omap3isp/isp.c
@@ -55,6 +55,7 @@
 #include <linux/module.h>
 #include <linux/omap-iommu.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 #include <linux/sched.h>
@@ -63,9 +64,9 @@
 #include <asm/dma-iommu.h>
 
 #include <media/v4l2-common.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-mc.h>
-#include <media/v4l2-of.h>
 
 #include "isp.h"
 #include "ispreg.h"
@@ -2024,43 +2025,42 @@ enum isp_of_phy {
 	ISP_OF_PHY_CSIPHY2,
 };
 
-static int isp_of_parse_node(struct device *dev, struct device_node *node,
-			     struct isp_async_subdev *isd)
+static int isp_fwnode_parse(struct device *dev, struct fwnode_handle *fwn,
+			    struct isp_async_subdev *isd)
 {
 	struct isp_bus_cfg *buscfg = &isd->bus;
-	struct v4l2_of_endpoint vep;
+	struct v4l2_fwnode_endpoint vfwn;
 	unsigned int i;
 	int ret;
 
-	ret = v4l2_of_parse_endpoint(node, &vep);
+	ret = v4l2_fwnode_endpoint_parse(fwn, &vfwn);
 	if (ret)
 		return ret;
 
-	dev_dbg(dev, "parsing endpoint %s, interface %u\n", node->full_name,
-		vep.base.port);
+	dev_dbg(dev, "interface %u\n", vfwn.base.port);
 
-	switch (vep.base.port) {
+	switch (vfwn.base.port) {
 	case ISP_OF_PHY_PARALLEL:
 		buscfg->interface = ISP_INTERFACE_PARALLEL;
 		buscfg->bus.parallel.data_lane_shift =
-			vep.bus.parallel.data_shift;
+			vfwn.bus.parallel.data_shift;
 		buscfg->bus.parallel.clk_pol =
-			!!(vep.bus.parallel.flags
+			!!(vfwn.bus.parallel.flags
 			   & V4L2_MBUS_PCLK_SAMPLE_FALLING);
 		buscfg->bus.parallel.hs_pol =
-			!!(vep.bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW);
+			!!(vfwn.bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW);
 		buscfg->bus.parallel.vs_pol =
-			!!(vep.bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW);
+			!!(vfwn.bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW);
 		buscfg->bus.parallel.fld_pol =
-			!!(vep.bus.parallel.flags & V4L2_MBUS_FIELD_EVEN_LOW);
+			!!(vfwn.bus.parallel.flags & V4L2_MBUS_FIELD_EVEN_LOW);
 		buscfg->bus.parallel.data_pol =
-			!!(vep.bus.parallel.flags & V4L2_MBUS_DATA_ACTIVE_LOW);
+			!!(vfwn.bus.parallel.flags & V4L2_MBUS_DATA_ACTIVE_LOW);
 		break;
 
 	case ISP_OF_PHY_CSIPHY1:
 	case ISP_OF_PHY_CSIPHY2:
 		/* FIXME: always assume CSI-2 for now. */
-		switch (vep.base.port) {
+		switch (vfwn.base.port) {
 		case ISP_OF_PHY_CSIPHY1:
 			buscfg->interface = ISP_INTERFACE_CSI2C_PHY1;
 			break;
@@ -2068,18 +2068,18 @@ static int isp_of_parse_node(struct device *dev, struct device_node *node,
 			buscfg->interface = ISP_INTERFACE_CSI2A_PHY2;
 			break;
 		}
-		buscfg->bus.csi2.lanecfg.clk.pos = vep.bus.mipi_csi2.clock_lane;
+		buscfg->bus.csi2.lanecfg.clk.pos = vfwn.bus.mipi_csi2.clock_lane;
 		buscfg->bus.csi2.lanecfg.clk.pol =
-			vep.bus.mipi_csi2.lane_polarities[0];
+			vfwn.bus.mipi_csi2.lane_polarities[0];
 		dev_dbg(dev, "clock lane polarity %u, pos %u\n",
 			buscfg->bus.csi2.lanecfg.clk.pol,
 			buscfg->bus.csi2.lanecfg.clk.pos);
 
 		for (i = 0; i < ISP_CSIPHY2_NUM_DATA_LANES; i++) {
 			buscfg->bus.csi2.lanecfg.data[i].pos =
-				vep.bus.mipi_csi2.data_lanes[i];
+				vfwn.bus.mipi_csi2.data_lanes[i];
 			buscfg->bus.csi2.lanecfg.data[i].pol =
-				vep.bus.mipi_csi2.lane_polarities[i + 1];
+				vfwn.bus.mipi_csi2.lane_polarities[i + 1];
 			dev_dbg(dev, "data lane %u polarity %u, pos %u\n", i,
 				buscfg->bus.csi2.lanecfg.data[i].pol,
 				buscfg->bus.csi2.lanecfg.data[i].pos);
@@ -2094,18 +2094,17 @@ static int isp_of_parse_node(struct device *dev, struct device_node *node,
 		break;
 
 	default:
-		dev_warn(dev, "%s: invalid interface %u\n", node->full_name,
-			 vep.base.port);
+		dev_warn(dev, "invalid interface %u\n", vfwn.base.port);
 		break;
 	}
 
 	return 0;
 }
 
-static int isp_of_parse_nodes(struct device *dev,
-			      struct v4l2_async_notifier *notifier)
+static int isp_fwnodes_parse(struct device *dev,
+			     struct v4l2_async_notifier *notifier)
 {
-	struct device_node *node = NULL;
+	struct fwnode_handle *fwn = NULL;
 
 	notifier->subdevs = devm_kcalloc(
 		dev, ISP_MAX_SUBDEVS, sizeof(*notifier->subdevs), GFP_KERNEL);
@@ -2113,7 +2112,8 @@ static int isp_of_parse_nodes(struct device *dev,
 		return -ENOMEM;
 
 	while (notifier->num_subdevs < ISP_MAX_SUBDEVS &&
-	       (node = of_graph_get_next_endpoint(dev->of_node, node))) {
+	       (fwn = fwnode_graph_get_next_endpoint(dev_fwnode(dev),
+						     fwn))) {
 		struct isp_async_subdev *isd;
 
 		isd = devm_kzalloc(dev, sizeof(*isd), GFP_KERNEL);
@@ -2122,23 +2122,24 @@ static int isp_of_parse_nodes(struct device *dev,
 
 		notifier->subdevs[notifier->num_subdevs] = &isd->asd;
 
-		if (isp_of_parse_node(dev, node, isd))
+		if (isp_fwnode_parse(dev, fwn, isd))
 			goto error;
 
-		isd->asd.match.of.node = of_graph_get_remote_port_parent(node);
-		if (!isd->asd.match.of.node) {
+		isd->asd.match.fwnode.fwn =
+			fwnode_graph_get_remote_port_parent(fwn);
+		if (!isd->asd.match.fwnode.fwn) {
 			dev_warn(dev, "bad remote port parent\n");
 			goto error;
 		}
 
-		isd->asd.match_type = V4L2_ASYNC_MATCH_OF;
+		isd->asd.match_type = V4L2_ASYNC_MATCH_FWNODE;
 		notifier->num_subdevs++;
 	}
 
 	return notifier->num_subdevs;
 
 error:
-	of_node_put(node);
+	fwnode_handle_put(fwn);
 	return -EINVAL;
 }
 
@@ -2209,8 +2210,8 @@ static int isp_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	ret = of_property_read_u32(pdev->dev.of_node, "ti,phy-type",
-				   &isp->phy_type);
+	ret = fwnode_property_read_u32(dev_fwnode(&pdev->dev),
+				       "ti,phy-type", &isp->phy_type);
 	if (ret)
 		return ret;
 
@@ -2219,12 +2220,12 @@ static int isp_probe(struct platform_device *pdev)
 	if (IS_ERR(isp->syscon))
 		return PTR_ERR(isp->syscon);
 
-	ret = of_property_read_u32_index(pdev->dev.of_node, "syscon", 1,
-					 &isp->syscon_offset);
+	ret = of_property_read_u32_index(pdev->dev.of_node,
+					 "syscon", 1, &isp->syscon_offset);
 	if (ret)
 		return ret;
 
-	ret = isp_of_parse_nodes(&pdev->dev, &isp->notifier);
+	ret = isp_fwnodes_parse(&pdev->dev, &isp->notifier);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/platform/pxa_camera.c b/drivers/media/platform/pxa_camera.c
index 929006f..1ad4cf9 100644
--- a/drivers/media/platform/pxa_camera.c
+++ b/drivers/media/platform/pxa_camera.c
@@ -25,6 +25,7 @@
 #include <linux/mm.h>
 #include <linux/moduleparam.h>
 #include <linux/of.h>
+#include <linux/of_graph.h>
 #include <linux/time.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
@@ -39,7 +40,7 @@
 #include <media/v4l2-common.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include <media/videobuf2-dma-sg.h>
 
@@ -2236,7 +2237,7 @@ static int pxa_camera_pdata_from_dt(struct device *dev,
 {
 	u32 mclk_rate;
 	struct device_node *remote, *np = dev->of_node;
-	struct v4l2_of_endpoint ep;
+	struct v4l2_fwnode_endpoint ep;
 	int err = of_property_read_u32(np, "clock-frequency",
 				       &mclk_rate);
 	if (!err) {
@@ -2250,7 +2251,7 @@ static int pxa_camera_pdata_from_dt(struct device *dev,
 		return -EINVAL;
 	}
 
-	err = v4l2_of_parse_endpoint(np, &ep);
+	err = v4l2_fwnode_endpoint_parse(of_fwnode_handle(np), &ep);
 	if (err) {
 		dev_err(dev, "could not parse endpoint\n");
 		goto out;
diff --git a/drivers/media/platform/rcar-vin/Kconfig b/drivers/media/platform/rcar-vin/Kconfig
index 111d2a1..af4c98b 100644
--- a/drivers/media/platform/rcar-vin/Kconfig
+++ b/drivers/media/platform/rcar-vin/Kconfig
@@ -3,6 +3,7 @@ config VIDEO_RCAR_VIN
 	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && OF && HAS_DMA && MEDIA_CONTROLLER
 	depends on ARCH_RENESAS || COMPILE_TEST
 	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
 	---help---
 	  Support for Renesas R-Car Video Input (VIN) driver.
 	  Supports R-Car Gen2 SoCs.
diff --git a/drivers/media/platform/rcar-vin/rcar-core.c b/drivers/media/platform/rcar-vin/rcar-core.c
index 098a0b1..72903fc 100644
--- a/drivers/media/platform/rcar-vin/rcar-core.c
+++ b/drivers/media/platform/rcar-vin/rcar-core.c
@@ -21,7 +21,7 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include "rcar-vin.h"
 
@@ -118,10 +118,10 @@ static int rvin_digitial_parse_v4l2(struct rvin_dev *vin,
 				    struct device_node *ep,
 				    struct v4l2_mbus_config *mbus_cfg)
 {
-	struct v4l2_of_endpoint v4l2_ep;
+	struct v4l2_fwnode_endpoint v4l2_ep;
 	int ret;
 
-	ret = v4l2_of_parse_endpoint(ep, &v4l2_ep);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &v4l2_ep);
 	if (ret) {
 		vin_err(vin, "Could not parse v4l2 endpoint\n");
 		return -EINVAL;
diff --git a/drivers/media/platform/soc_camera/Kconfig b/drivers/media/platform/soc_camera/Kconfig
index 2728276..7009e5b 100644
--- a/drivers/media/platform/soc_camera/Kconfig
+++ b/drivers/media/platform/soc_camera/Kconfig
@@ -32,6 +32,7 @@ config VIDEO_ATMEL_ISI
 	depends on ARCH_AT91 || COMPILE_TEST
 	depends on HAS_DMA
 	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
 	---help---
 	  This module makes the ATMEL Image Sensor Interface available
 	  as a v4l2 device.
diff --git a/drivers/media/platform/soc_camera/atmel-isi.c b/drivers/media/platform/soc_camera/atmel-isi.c
index 46de657..f9f2ad6 100644
--- a/drivers/media/platform/soc_camera/atmel-isi.c
+++ b/drivers/media/platform/soc_camera/atmel-isi.c
@@ -19,13 +19,14 @@
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of_graph.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
 
 #include <media/soc_camera.h>
 #include <media/drv-intf/soc_mediabus.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/videobuf2-dma-contig.h>
 
 #include "atmel-isi.h"
@@ -974,7 +975,7 @@ static int atmel_isi_parse_dt(struct atmel_isi *isi,
 			struct platform_device *pdev)
 {
 	struct device_node *np= pdev->dev.of_node;
-	struct v4l2_of_endpoint ep;
+	struct v4l2_fwnode_endpoint ep;
 	int err;
 
 	/* Default settings for ISI */
@@ -987,7 +988,7 @@ static int atmel_isi_parse_dt(struct atmel_isi *isi,
 		return -EINVAL;
 	}
 
-	err = v4l2_of_parse_endpoint(np, &ep);
+	err = v4l2_fwnode_endpoint_parse(of_fwnode_handle(np), &ep);
 	of_node_put(np);
 	if (err) {
 		dev_err(&pdev->dev, "Could not parse the endpoint\n");
diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c
index 3c9421f..0997d074 100644
--- a/drivers/media/platform/soc_camera/soc_camera.c
+++ b/drivers/media/platform/soc_camera/soc_camera.c
@@ -23,6 +23,7 @@
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
+#include <linux/of_graph.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/regulator/consumer.h>
@@ -36,7 +37,7 @@
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
 #include <media/v4l2-dev.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/videobuf2-v4l2.h>
 
 /* Default to VGA resolution */
diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c
index 7a058b6..f72f541 100644
--- a/drivers/media/platform/ti-vpe/cal.c
+++ b/drivers/media/platform/ti-vpe/cal.c
@@ -21,7 +21,7 @@
 #include <linux/of_device.h>
 #include <linux/of_graph.h>
 
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-async.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ctrls.h>
@@ -270,7 +270,7 @@ struct cal_ctx {
 	struct video_device	vdev;
 	struct v4l2_async_notifier notifier;
 	struct v4l2_subdev	*sensor;
-	struct v4l2_of_endpoint	endpoint;
+	struct v4l2_fwnode_endpoint	endpoint;
 
 	struct v4l2_async_subdev asd;
 	struct v4l2_async_subdev *asd_list[1];
@@ -608,7 +608,8 @@ static void csi2_lane_config(struct cal_ctx *ctx)
 	u32 val = reg_read(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port));
 	u32 lane_mask = CAL_CSI2_COMPLEXIO_CFG_CLOCK_POSITION_MASK;
 	u32 polarity_mask = CAL_CSI2_COMPLEXIO_CFG_CLOCK_POL_MASK;
-	struct v4l2_of_bus_mipi_csi2 *mipi_csi2 = &ctx->endpoint.bus.mipi_csi2;
+	struct v4l2_fwnode_bus_mipi_csi2 *mipi_csi2 =
+		&ctx->endpoint.bus.mipi_csi2;
 	int lane;
 
 	set_field(&val, mipi_csi2->clock_lane + 1, lane_mask);
@@ -1643,7 +1644,7 @@ static int of_cal_create_instance(struct cal_ctx *ctx, int inst)
 	struct platform_device *pdev = ctx->dev->pdev;
 	struct device_node *ep_node, *port, *remote_ep,
 			*sensor_node, *parent;
-	struct v4l2_of_endpoint *endpoint;
+	struct v4l2_fwnode_endpoint *endpoint;
 	struct v4l2_async_subdev *asd;
 	u32 regval = 0;
 	int ret, index, found_port = 0, lane;
@@ -1706,7 +1707,7 @@ static int of_cal_create_instance(struct cal_ctx *ctx, int inst)
 		ctx_dbg(3, ctx, "can't get remote-endpoint\n");
 		goto cleanup_exit;
 	}
-	v4l2_of_parse_endpoint(remote_ep, endpoint);
+	v4l2_fwnode_endpoint_parse(of_fwnode_handle(remote_ep), endpoint);
 
 	if (endpoint->bus_type != V4L2_MBUS_CSI2) {
 		ctx_err(ctx, "Port:%d sub-device %s is not a CSI2 device\n",
diff --git a/drivers/media/platform/xilinx/Kconfig b/drivers/media/platform/xilinx/Kconfig
index 84bae79..a5d21b7 100644
--- a/drivers/media/platform/xilinx/Kconfig
+++ b/drivers/media/platform/xilinx/Kconfig
@@ -2,6 +2,7 @@ config VIDEO_XILINX
 	tristate "Xilinx Video IP (EXPERIMENTAL)"
 	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && OF && HAS_DMA
 	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
 	---help---
 	  Driver for Xilinx Video IP Pipelines
 
diff --git a/drivers/media/platform/xilinx/xilinx-vipp.c b/drivers/media/platform/xilinx/xilinx-vipp.c
index feb3b2f..6a2721b 100644
--- a/drivers/media/platform/xilinx/xilinx-vipp.c
+++ b/drivers/media/platform/xilinx/xilinx-vipp.c
@@ -22,7 +22,7 @@
 #include <media/v4l2-async.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-device.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include "xilinx-dma.h"
 #include "xilinx-vipp.h"
@@ -74,7 +74,7 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
 	struct media_pad *local_pad;
 	struct media_pad *remote_pad;
 	struct xvip_graph_entity *ent;
-	struct v4l2_of_link link;
+	struct v4l2_fwnode_link link;
 	struct device_node *ep = NULL;
 	struct device_node *next;
 	int ret = 0;
@@ -92,7 +92,7 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
 
 		dev_dbg(xdev->dev, "processing endpoint %s\n", ep->full_name);
 
-		ret = v4l2_of_parse_link(ep, &link);
+		ret = v4l2_fwnode_parse_link(of_fwnode_handle(ep), &link);
 		if (ret < 0) {
 			dev_err(xdev->dev, "failed to parse link for %s\n",
 				ep->full_name);
@@ -103,9 +103,10 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
 		 * the link.
 		 */
 		if (link.local_port >= local->num_pads) {
-			dev_err(xdev->dev, "invalid port number %u on %s\n",
-				link.local_port, link.local_node->full_name);
-			v4l2_of_put_link(&link);
+			dev_err(xdev->dev, "invalid port number %u for %s\n",
+				link.local_port,
+				to_of_node(link.local_node)->full_name);
+			v4l2_fwnode_put_link(&link);
 			ret = -EINVAL;
 			break;
 		}
@@ -114,25 +115,28 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
 
 		if (local_pad->flags & MEDIA_PAD_FL_SINK) {
 			dev_dbg(xdev->dev, "skipping sink port %s:%u\n",
-				link.local_node->full_name, link.local_port);
-			v4l2_of_put_link(&link);
+				to_of_node(link.local_node)->full_name,
+				link.local_port);
+			v4l2_fwnode_put_link(&link);
 			continue;
 		}
 
 		/* Skip DMA engines, they will be processed separately. */
-		if (link.remote_node == xdev->dev->of_node) {
+		if (link.remote_node == of_fwnode_handle(xdev->dev->of_node)) {
 			dev_dbg(xdev->dev, "skipping DMA port %s:%u\n",
-				link.local_node->full_name, link.local_port);
-			v4l2_of_put_link(&link);
+				to_of_node(link.local_node)->full_name,
+				link.local_port);
+			v4l2_fwnode_put_link(&link);
 			continue;
 		}
 
 		/* Find the remote entity. */
-		ent = xvip_graph_find_entity(xdev, link.remote_node);
+		ent = xvip_graph_find_entity(xdev,
+					     to_of_node(link.remote_node));
 		if (ent == NULL) {
 			dev_err(xdev->dev, "no entity found for %s\n",
-				link.remote_node->full_name);
-			v4l2_of_put_link(&link);
+				to_of_node(link.remote_node)->full_name);
+			v4l2_fwnode_put_link(&link);
 			ret = -ENODEV;
 			break;
 		}
@@ -141,15 +145,16 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
 
 		if (link.remote_port >= remote->num_pads) {
 			dev_err(xdev->dev, "invalid port number %u on %s\n",
-				link.remote_port, link.remote_node->full_name);
-			v4l2_of_put_link(&link);
+				link.remote_port,
+				to_of_node(link.remote_node)->full_name);
+			v4l2_fwnode_put_link(&link);
 			ret = -EINVAL;
 			break;
 		}
 
 		remote_pad = &remote->pads[link.remote_port];
 
-		v4l2_of_put_link(&link);
+		v4l2_fwnode_put_link(&link);
 
 		/* Create the media link. */
 		dev_dbg(xdev->dev, "creating %s:%u -> %s:%u link\n",
@@ -194,7 +199,7 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
 	struct media_pad *source_pad;
 	struct media_pad *sink_pad;
 	struct xvip_graph_entity *ent;
-	struct v4l2_of_link link;
+	struct v4l2_fwnode_link link;
 	struct device_node *ep = NULL;
 	struct device_node *next;
 	struct xvip_dma *dma;
@@ -213,7 +218,7 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
 
 		dev_dbg(xdev->dev, "processing endpoint %s\n", ep->full_name);
 
-		ret = v4l2_of_parse_link(ep, &link);
+		ret = v4l2_fwnode_parse_link(of_fwnode_handle(ep), &link);
 		if (ret < 0) {
 			dev_err(xdev->dev, "failed to parse link for %s\n",
 				ep->full_name);
@@ -225,7 +230,7 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
 		if (dma == NULL) {
 			dev_err(xdev->dev, "no DMA engine found for port %u\n",
 				link.local_port);
-			v4l2_of_put_link(&link);
+			v4l2_fwnode_put_link(&link);
 			ret = -EINVAL;
 			break;
 		}
@@ -234,19 +239,21 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
 			dma->video.name);
 
 		/* Find the remote entity. */
-		ent = xvip_graph_find_entity(xdev, link.remote_node);
+		ent = xvip_graph_find_entity(xdev,
+					     to_of_node(link.remote_node));
 		if (ent == NULL) {
 			dev_err(xdev->dev, "no entity found for %s\n",
-				link.remote_node->full_name);
-			v4l2_of_put_link(&link);
+				to_of_node(link.remote_node)->full_name);
+			v4l2_fwnode_put_link(&link);
 			ret = -ENODEV;
 			break;
 		}
 
 		if (link.remote_port >= ent->entity->num_pads) {
 			dev_err(xdev->dev, "invalid port number %u on %s\n",
-				link.remote_port, link.remote_node->full_name);
-			v4l2_of_put_link(&link);
+				link.remote_port,
+				to_of_node(link.remote_node)->full_name);
+			v4l2_fwnode_put_link(&link);
 			ret = -EINVAL;
 			break;
 		}
@@ -263,7 +270,7 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
 			sink_pad = &dma->pad;
 		}
 
-		v4l2_of_put_link(&link);
+		v4l2_fwnode_put_link(&link);
 
 		/* Create the media link. */
 		dev_dbg(xdev->dev, "creating %s:%u -> %s:%u link\n",
diff --git a/include/media/v4l2-fwnode.h b/include/media/v4l2-fwnode.h
index a675d8a..bc9cf51 100644
--- a/include/media/v4l2-fwnode.h
+++ b/include/media/v4l2-fwnode.h
@@ -17,10 +17,10 @@
 #ifndef _V4L2_FWNODE_H
 #define _V4L2_FWNODE_H
 
+#include <linux/errno.h>
+#include <linux/fwnode.h>
 #include <linux/list.h>
 #include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/of_graph.h>
 
 #include <media/v4l2-mediabus.h>
 
-- 
2.7.4

Re: [PATCH v2 5/8] v4l: Switch from V4L2 OF not V4L2 fwnode API

[kbuild test robot]

[-- Attachment #1: Type: text/plain, Size: 14010 bytes --]

Hi Sakari,

[auto build test ERROR on linuxtv-media/master]
[also build test ERROR on next-20170406]
[cannot apply to v4.11-rc5]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Sakari-Ailus/v4l-flash-led-class-Use-fwnode_handle-instead-of-device_node-in-init/20170407-133451
base:   git://linuxtv.org/media_tree.git master
config: i386-randconfig-x016-201714 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All error/warnings (new ones prefixed by >>):

   In file included from drivers/media/i2c/tvp5150.c:19:0:
>> include/media/v4l2-fwnode.h:67:25: error: field 'base' has incomplete type
     struct fwnode_endpoint base;
                            ^~~~
   drivers/media/i2c/tvp5150.c: In function 'tvp5150_parse_dt':
>> drivers/media/i2c/tvp5150.c:1377:35: error: implicit declaration of function 'of_fwnode_handle' [-Werror=implicit-function-declaration]
     ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg);
                                      ^~~~~~~~~~~~~~~~
>> drivers/media/i2c/tvp5150.c:1377:35: warning: passing argument 1 of 'v4l2_fwnode_endpoint_parse' makes pointer from integer without a cast [-Wint-conversion]
   In file included from drivers/media/i2c/tvp5150.c:19:0:
   include/media/v4l2-fwnode.h:95:5: note: expected 'struct fwnode_handle *' but argument is of type 'int'
    int v4l2_fwnode_endpoint_parse(struct fwnode_handle *fwn,
        ^~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors
--
   In file included from drivers/media/i2c/tvp514x.c:41:0:
>> include/media/v4l2-fwnode.h:67:25: error: field 'base' has incomplete type
     struct fwnode_endpoint base;
                            ^~~~
   drivers/media/i2c/tvp514x.c: In function 'tvp514x_get_pdata':
>> drivers/media/i2c/tvp514x.c:1012:33: error: implicit declaration of function 'of_fwnode_handle' [-Werror=implicit-function-declaration]
     if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &bus_cfg))
                                    ^~~~~~~~~~~~~~~~
>> drivers/media/i2c/tvp514x.c:1012:33: warning: passing argument 1 of 'v4l2_fwnode_endpoint_parse' makes pointer from integer without a cast [-Wint-conversion]
   In file included from drivers/media/i2c/tvp514x.c:41:0:
   include/media/v4l2-fwnode.h:95:5: note: expected 'struct fwnode_handle *' but argument is of type 'int'
    int v4l2_fwnode_endpoint_parse(struct fwnode_handle *fwn,
        ^~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors
--
   In file included from drivers/media/i2c/tvp7002.c:36:0:
>> include/media/v4l2-fwnode.h:67:25: error: field 'base' has incomplete type
     struct fwnode_endpoint base;
                            ^~~~
   drivers/media/i2c/tvp7002.c: In function 'tvp7002_get_pdata':
>> drivers/media/i2c/tvp7002.c:904:33: error: implicit declaration of function 'of_fwnode_handle' [-Werror=implicit-function-declaration]
     if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &bus_cfg))
                                    ^~~~~~~~~~~~~~~~
>> drivers/media/i2c/tvp7002.c:904:33: warning: passing argument 1 of 'v4l2_fwnode_endpoint_parse' makes pointer from integer without a cast [-Wint-conversion]
   In file included from drivers/media/i2c/tvp7002.c:36:0:
   include/media/v4l2-fwnode.h:95:5: note: expected 'struct fwnode_handle *' but argument is of type 'int'
    int v4l2_fwnode_endpoint_parse(struct fwnode_handle *fwn,
        ^~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors
--
   In file included from drivers/media/v4l2-core/v4l2-fwnode.c:26:0:
>> include/media/v4l2-fwnode.h:67:25: error: field 'base' has incomplete type
     struct fwnode_endpoint base;
                            ^~~~
   drivers/media/v4l2-core/v4l2-fwnode.c: In function 'v4l2_fwnode_endpoint_parse':
>> drivers/media/v4l2-core/v4l2-fwnode.c:170:2: error: implicit declaration of function 'fwnode_graph_parse_endpoint' [-Werror=implicit-function-declaration]
     fwnode_graph_parse_endpoint(fwn, &vfwn->base);
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/media/v4l2-core/v4l2-fwnode.c: In function 'v4l2_fwnode_parse_link':
>> drivers/media/v4l2-core/v4l2-fwnode.c:301:8: error: implicit declaration of function 'fwnode_get_parent' [-Werror=implicit-function-declaration]
     fwn = fwnode_get_parent(__fwn);
           ^~~~~~~~~~~~~~~~~
>> drivers/media/v4l2-core/v4l2-fwnode.c:301:6: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     fwn = fwnode_get_parent(__fwn);
         ^
>> drivers/media/v4l2-core/v4l2-fwnode.c:303:8: error: implicit declaration of function 'fwnode_get_next_parent' [-Werror=implicit-function-declaration]
     fwn = fwnode_get_next_parent(fwn);
           ^~~~~~~~~~~~~~~~~~~~~~
   drivers/media/v4l2-core/v4l2-fwnode.c:303:6: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     fwn = fwnode_get_next_parent(fwn);
         ^
   drivers/media/v4l2-core/v4l2-fwnode.c:306:8: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
       fwn = fwnode_get_next_parent(fwn);
           ^
   drivers/media/v4l2-core/v4l2-fwnode.c:309:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
      fwn = fwnode_get_next_parent(fwn);
          ^
>> drivers/media/v4l2-core/v4l2-fwnode.c:313:8: error: implicit declaration of function 'fwnode_graph_get_remote_endpoint' [-Werror=implicit-function-declaration]
     fwn = fwnode_graph_get_remote_endpoint(fwn);
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/media/v4l2-core/v4l2-fwnode.c:313:6: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     fwn = fwnode_graph_get_remote_endpoint(fwn);
         ^
   drivers/media/v4l2-core/v4l2-fwnode.c:319:6: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     fwn = fwnode_get_parent(fwn);
         ^
   drivers/media/v4l2-core/v4l2-fwnode.c:321:6: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     fwn = fwnode_get_next_parent(fwn);
         ^
   drivers/media/v4l2-core/v4l2-fwnode.c:324:8: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
       fwn = fwnode_get_next_parent(fwn);
           ^
   drivers/media/v4l2-core/v4l2-fwnode.c:327:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
      fwn = fwnode_get_next_parent(fwn);
          ^
   cc1: some warnings being treated as errors
--
   In file included from drivers/media//i2c/tvp5150.c:19:0:
>> include/media/v4l2-fwnode.h:67:25: error: field 'base' has incomplete type
     struct fwnode_endpoint base;
                            ^~~~
   drivers/media//i2c/tvp5150.c: In function 'tvp5150_parse_dt':
   drivers/media//i2c/tvp5150.c:1377:35: error: implicit declaration of function 'of_fwnode_handle' [-Werror=implicit-function-declaration]
     ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg);
                                      ^~~~~~~~~~~~~~~~
   drivers/media//i2c/tvp5150.c:1377:35: warning: passing argument 1 of 'v4l2_fwnode_endpoint_parse' makes pointer from integer without a cast [-Wint-conversion]
   In file included from drivers/media//i2c/tvp5150.c:19:0:
   include/media/v4l2-fwnode.h:95:5: note: expected 'struct fwnode_handle *' but argument is of type 'int'
    int v4l2_fwnode_endpoint_parse(struct fwnode_handle *fwn,
        ^~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors
--
   In file included from drivers/media//i2c/tvp514x.c:41:0:
>> include/media/v4l2-fwnode.h:67:25: error: field 'base' has incomplete type
     struct fwnode_endpoint base;
                            ^~~~
   drivers/media//i2c/tvp514x.c: In function 'tvp514x_get_pdata':
   drivers/media//i2c/tvp514x.c:1012:33: error: implicit declaration of function 'of_fwnode_handle' [-Werror=implicit-function-declaration]
     if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &bus_cfg))
                                    ^~~~~~~~~~~~~~~~
   drivers/media//i2c/tvp514x.c:1012:33: warning: passing argument 1 of 'v4l2_fwnode_endpoint_parse' makes pointer from integer without a cast [-Wint-conversion]
   In file included from drivers/media//i2c/tvp514x.c:41:0:
   include/media/v4l2-fwnode.h:95:5: note: expected 'struct fwnode_handle *' but argument is of type 'int'
    int v4l2_fwnode_endpoint_parse(struct fwnode_handle *fwn,
        ^~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors
--
   In file included from drivers/media//i2c/tvp7002.c:36:0:
>> include/media/v4l2-fwnode.h:67:25: error: field 'base' has incomplete type
     struct fwnode_endpoint base;
                            ^~~~
   drivers/media//i2c/tvp7002.c: In function 'tvp7002_get_pdata':
   drivers/media//i2c/tvp7002.c:904:33: error: implicit declaration of function 'of_fwnode_handle' [-Werror=implicit-function-declaration]
     if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &bus_cfg))
                                    ^~~~~~~~~~~~~~~~
   drivers/media//i2c/tvp7002.c:904:33: warning: passing argument 1 of 'v4l2_fwnode_endpoint_parse' makes pointer from integer without a cast [-Wint-conversion]
   In file included from drivers/media//i2c/tvp7002.c:36:0:
   include/media/v4l2-fwnode.h:95:5: note: expected 'struct fwnode_handle *' but argument is of type 'int'
    int v4l2_fwnode_endpoint_parse(struct fwnode_handle *fwn,
        ^~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors
--
   In file included from drivers/media//v4l2-core/v4l2-fwnode.c:26:0:
>> include/media/v4l2-fwnode.h:67:25: error: field 'base' has incomplete type
     struct fwnode_endpoint base;
                            ^~~~
   drivers/media//v4l2-core/v4l2-fwnode.c: In function 'v4l2_fwnode_endpoint_parse':
   drivers/media//v4l2-core/v4l2-fwnode.c:170:2: error: implicit declaration of function 'fwnode_graph_parse_endpoint' [-Werror=implicit-function-declaration]
     fwnode_graph_parse_endpoint(fwn, &vfwn->base);
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/media//v4l2-core/v4l2-fwnode.c: In function 'v4l2_fwnode_parse_link':
   drivers/media//v4l2-core/v4l2-fwnode.c:301:8: error: implicit declaration of function 'fwnode_get_parent' [-Werror=implicit-function-declaration]
     fwn = fwnode_get_parent(__fwn);
           ^~~~~~~~~~~~~~~~~
   drivers/media//v4l2-core/v4l2-fwnode.c:301:6: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     fwn = fwnode_get_parent(__fwn);
         ^
   drivers/media//v4l2-core/v4l2-fwnode.c:303:8: error: implicit declaration of function 'fwnode_get_next_parent' [-Werror=implicit-function-declaration]
     fwn = fwnode_get_next_parent(fwn);
           ^~~~~~~~~~~~~~~~~~~~~~
   drivers/media//v4l2-core/v4l2-fwnode.c:303:6: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     fwn = fwnode_get_next_parent(fwn);
         ^
   drivers/media//v4l2-core/v4l2-fwnode.c:306:8: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
       fwn = fwnode_get_next_parent(fwn);
           ^
   drivers/media//v4l2-core/v4l2-fwnode.c:309:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
      fwn = fwnode_get_next_parent(fwn);
          ^
   drivers/media//v4l2-core/v4l2-fwnode.c:313:8: error: implicit declaration of function 'fwnode_graph_get_remote_endpoint' [-Werror=implicit-function-declaration]
     fwn = fwnode_graph_get_remote_endpoint(fwn);
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/media//v4l2-core/v4l2-fwnode.c:313:6: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     fwn = fwnode_graph_get_remote_endpoint(fwn);
         ^
   drivers/media//v4l2-core/v4l2-fwnode.c:319:6: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     fwn = fwnode_get_parent(fwn);
         ^
   drivers/media//v4l2-core/v4l2-fwnode.c:321:6: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     fwn = fwnode_get_next_parent(fwn);
         ^
   drivers/media//v4l2-core/v4l2-fwnode.c:324:8: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
       fwn = fwnode_get_next_parent(fwn);
           ^
   drivers/media//v4l2-core/v4l2-fwnode.c:327:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
      fwn = fwnode_get_next_parent(fwn);
          ^
   cc1: some warnings being treated as errors

vim +/base +67 include/media/v4l2-fwnode.h

8219f9b0 Sakari Ailus 2017-04-06  61   * @bus_type: bus type
8219f9b0 Sakari Ailus 2017-04-06  62   * @bus: bus configuration data structure
8219f9b0 Sakari Ailus 2017-04-06  63   * @link_frequencies: array of supported link frequencies
8219f9b0 Sakari Ailus 2017-04-06  64   * @nr_of_link_frequencies: number of elements in link_frequenccies array
8219f9b0 Sakari Ailus 2017-04-06  65   */
8219f9b0 Sakari Ailus 2017-04-06  66  struct v4l2_fwnode_endpoint {
8219f9b0 Sakari Ailus 2017-04-06 @67  	struct fwnode_endpoint base;
8219f9b0 Sakari Ailus 2017-04-06  68  	/*
8219f9b0 Sakari Ailus 2017-04-06  69  	 * Fields below this line will be zeroed by
8219f9b0 Sakari Ailus 2017-04-06  70  	 * v4l2_fwnode_parse_endpoint()

:::::: The code at line 67 was first introduced by commit
:::::: 8219f9b04bb5639303351ca63b349966aecb9537 v4l: fwnode: Support generic fwnode for parsing standardised properties

:::::: TO: Sakari Ailus <sakari.ailus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
:::::: CC: 0day robot <fengguang.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 24860 bytes --]

Re: [PATCH v2 5/8] v4l: Switch from V4L2 OF not V4L2 fwnode API

[kbuild test robot]

[-- Attachment #1: Type: text/plain, Size: 3274 bytes --]

Hi Sakari,

[auto build test ERROR on linuxtv-media/master]
[also build test ERROR on next-20170406]
[cannot apply to v4.11-rc5]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Sakari-Ailus/v4l-flash-led-class-Use-fwnode_handle-instead-of-device_node-in-init/20170407-133451
base:   git://linuxtv.org/media_tree.git master
config: i386-randconfig-x011-201714 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All error/warnings (new ones prefixed by >>):

   In file included from drivers/media//i2c/s5k5baf.c:33:0:
   include/media/v4l2-fwnode.h:67:25: error: field 'base' has incomplete type
     struct fwnode_endpoint base;
                            ^~~~
   drivers/media//i2c/s5k5baf.c: In function 's5k5baf_parse_device_node':
>> drivers/media//i2c/s5k5baf.c:1871:35: error: implicit declaration of function 'of_fwnode_handle' [-Werror=implicit-function-declaration]
     ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(node_ep), &ep);
                                      ^~~~~~~~~~~~~~~~
>> drivers/media//i2c/s5k5baf.c:1871:35: warning: passing argument 1 of 'v4l2_fwnode_endpoint_parse' makes pointer from integer without a cast [-Wint-conversion]
   In file included from drivers/media//i2c/s5k5baf.c:33:0:
   include/media/v4l2-fwnode.h:95:5: note: expected 'struct fwnode_handle *' but argument is of type 'int'
    int v4l2_fwnode_endpoint_parse(struct fwnode_handle *fwn,
        ^~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors
--
   In file included from drivers/media//i2c/tc358743.c:45:0:
   include/media/v4l2-fwnode.h:67:25: error: field 'base' has incomplete type
     struct fwnode_endpoint base;
                            ^~~~
   drivers/media//i2c/tc358743.c: In function 'tc358743_probe_of':
>> drivers/media//i2c/tc358743.c:1719:46: error: implicit declaration of function 'of_fwnode_handle' [-Werror=implicit-function-declaration]
     endpoint = v4l2_fwnode_endpoint_alloc_parse(of_fwnode_handle(ep));
                                                 ^~~~~~~~~~~~~~~~
>> drivers/media//i2c/tc358743.c:1719:46: warning: passing argument 1 of 'v4l2_fwnode_endpoint_alloc_parse' makes pointer from integer without a cast [-Wint-conversion]
   In file included from drivers/media//i2c/tc358743.c:45:0:
   include/media/v4l2-fwnode.h:97:30: note: expected 'struct fwnode_handle *' but argument is of type 'int'
    struct v4l2_fwnode_endpoint *v4l2_fwnode_endpoint_alloc_parse(
                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/of_fwnode_handle +1871 drivers/media//i2c/s5k5baf.c

  1865		if (!node_ep) {
  1866			dev_err(dev, "no endpoint defined at node %s\n",
  1867				node->full_name);
  1868			return -EINVAL;
  1869		}
  1870	
> 1871		ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(node_ep), &ep);
  1872		of_node_put(node_ep);
  1873		if (ret)
  1874			return ret;

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 25509 bytes --]

[PATCH v2 6/8] v4l: media/drv-intf/soc_mediabus.h: include dependent header file

[Sakari Ailus]

media/drv-intf/soc_mediabus.h does depend on struct v4l2_mbus_config which
is defined in media/v4l2-mediabus.h. Include it.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 include/media/drv-intf/soc_mediabus.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/media/drv-intf/soc_mediabus.h b/include/media/drv-intf/soc_mediabus.h
index 2ff7737..0449788 100644
--- a/include/media/drv-intf/soc_mediabus.h
+++ b/include/media/drv-intf/soc_mediabus.h
@@ -14,6 +14,8 @@
 #include <linux/videodev2.h>
 #include <linux/v4l2-mediabus.h>
 
+#include <media/v4l2-mediabus.h>
+
 /**
  * enum soc_mbus_packing - data packing types on the media-bus
  * @SOC_MBUS_PACKING_NONE:	no packing, bit-for-bit transfer to RAM, one
-- 
2.7.4

[PATCH v2 7/8] docs-rst: media: Switch documentation to V4L2 fwnode API

[Sakari Ailus]

Instead of including the V4L2 OF header in ReST documentation, use the
V4L2 fwnode header instead.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 Documentation/media/kapi/v4l2-core.rst   | 2 +-
 Documentation/media/kapi/v4l2-fwnode.rst | 3 +++
 Documentation/media/kapi/v4l2-of.rst     | 3 ---
 3 files changed, 4 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/media/kapi/v4l2-fwnode.rst
 delete mode 100644 Documentation/media/kapi/v4l2-of.rst

diff --git a/Documentation/media/kapi/v4l2-core.rst b/Documentation/media/kapi/v4l2-core.rst
index e967715..1bc8a14 100644
--- a/Documentation/media/kapi/v4l2-core.rst
+++ b/Documentation/media/kapi/v4l2-core.rst
@@ -19,7 +19,7 @@ Video2Linux devices
     v4l2-mc
     v4l2-mediabus
     v4l2-mem2mem
-    v4l2-of
+    v4l2-fwnode
     v4l2-rect
     v4l2-tuner
     v4l2-common
diff --git a/Documentation/media/kapi/v4l2-fwnode.rst b/Documentation/media/kapi/v4l2-fwnode.rst
new file mode 100644
index 0000000..6c8bccd
--- /dev/null
+++ b/Documentation/media/kapi/v4l2-fwnode.rst
@@ -0,0 +1,3 @@
+V4L2 fwnode kAPI
+^^^^^^^^^^^^^^^^
+.. kernel-doc:: include/media/v4l2-fwnode.h
diff --git a/Documentation/media/kapi/v4l2-of.rst b/Documentation/media/kapi/v4l2-of.rst
deleted file mode 100644
index 1ddf76b..0000000
--- a/Documentation/media/kapi/v4l2-of.rst
+++ /dev/null
@@ -1,3 +0,0 @@
-V4L2 Open Firmware kAPI
-^^^^^^^^^^^^^^^^^^^^^^^
-.. kernel-doc:: include/media/v4l2-of.h
-- 
2.7.4

[PATCH v2 1/8] v4l: flash led class: Use fwnode_handle instead of device_node in init

[Sakari Ailus]

Pass the more generic fwnode_handle to the init function than the
device_node.

Signed-off-by: Sakari Ailus <sakari.ailus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
---
 drivers/leds/leds-aat1290.c                    |  5 +++--
 drivers/leds/leds-max77693.c                   |  5 +++--
 drivers/media/v4l2-core/v4l2-flash-led-class.c | 11 ++++++-----
 include/media/v4l2-flash-led-class.h           |  4 ++--
 4 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/drivers/leds/leds-aat1290.c b/drivers/leds/leds-aat1290.c
index def3cf9..a21e192 100644
--- a/drivers/leds/leds-aat1290.c
+++ b/drivers/leds/leds-aat1290.c
@@ -503,8 +503,9 @@ static int aat1290_led_probe(struct platform_device *pdev)
 	aat1290_init_v4l2_flash_config(led, &led_cfg, &v4l2_sd_cfg);
 
 	/* Create V4L2 Flash subdev. */
-	led->v4l2_flash = v4l2_flash_init(dev, sub_node, fled_cdev, NULL,
-					  &v4l2_flash_ops, &v4l2_sd_cfg);
+	led->v4l2_flash = v4l2_flash_init(dev, of_fwnode_handle(sub_node),
+					  fled_cdev, NULL, &v4l2_flash_ops,
+					  &v4l2_sd_cfg);
 	if (IS_ERR(led->v4l2_flash)) {
 		ret = PTR_ERR(led->v4l2_flash);
 		goto error_v4l2_flash_init;
diff --git a/drivers/leds/leds-max77693.c b/drivers/leds/leds-max77693.c
index 1eb58ef..2d3062d 100644
--- a/drivers/leds/leds-max77693.c
+++ b/drivers/leds/leds-max77693.c
@@ -930,8 +930,9 @@ static int max77693_register_led(struct max77693_sub_led *sub_led,
 	max77693_init_v4l2_flash_config(sub_led, led_cfg, &v4l2_sd_cfg);
 
 	/* Register in the V4L2 subsystem. */
-	sub_led->v4l2_flash = v4l2_flash_init(dev, sub_node, fled_cdev, NULL,
-					      &v4l2_flash_ops, &v4l2_sd_cfg);
+	sub_led->v4l2_flash = v4l2_flash_init(dev, of_fwnode_handle(sub_node),
+					      fled_cdev, NULL, &v4l2_flash_ops,
+					      &v4l2_sd_cfg);
 	if (IS_ERR(sub_led->v4l2_flash)) {
 		ret = PTR_ERR(sub_led->v4l2_flash);
 		goto err_v4l2_flash_init;
diff --git a/drivers/media/v4l2-core/v4l2-flash-led-class.c b/drivers/media/v4l2-core/v4l2-flash-led-class.c
index 794e563..f430c89 100644
--- a/drivers/media/v4l2-core/v4l2-flash-led-class.c
+++ b/drivers/media/v4l2-core/v4l2-flash-led-class.c
@@ -13,6 +13,7 @@
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/of.h>
+#include <linux/property.h>
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <media/v4l2-flash-led-class.h>
@@ -612,7 +613,7 @@ static const struct v4l2_subdev_internal_ops v4l2_flash_subdev_internal_ops = {
 static const struct v4l2_subdev_ops v4l2_flash_subdev_ops;
 
 struct v4l2_flash *v4l2_flash_init(
-	struct device *dev, struct device_node *of_node,
+	struct device *dev, struct fwnode_handle *fwn,
 	struct led_classdev_flash *fled_cdev,
 	struct led_classdev_flash *iled_cdev,
 	const struct v4l2_flash_ops *ops,
@@ -638,7 +639,7 @@ struct v4l2_flash *v4l2_flash_init(
 	v4l2_flash->iled_cdev = iled_cdev;
 	v4l2_flash->ops = ops;
 	sd->dev = dev;
-	sd->of_node = of_node ? of_node : led_cdev->dev->of_node;
+	sd->fwnode = fwn ? fwn : dev_fwnode(led_cdev->dev);
 	v4l2_subdev_init(sd, &v4l2_flash_subdev_ops);
 	sd->internal_ops = &v4l2_flash_subdev_internal_ops;
 	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
@@ -654,7 +655,7 @@ struct v4l2_flash *v4l2_flash_init(
 	if (ret < 0)
 		goto err_init_controls;
 
-	of_node_get(sd->of_node);
+	fwnode_handle_get(sd->fwnode);
 
 	ret = v4l2_async_register_subdev(sd);
 	if (ret < 0)
@@ -663,7 +664,7 @@ struct v4l2_flash *v4l2_flash_init(
 	return v4l2_flash;
 
 err_async_register_sd:
-	of_node_put(sd->of_node);
+	fwnode_handle_put(sd->fwnode);
 	v4l2_ctrl_handler_free(sd->ctrl_handler);
 err_init_controls:
 	media_entity_cleanup(&sd->entity);
@@ -683,7 +684,7 @@ void v4l2_flash_release(struct v4l2_flash *v4l2_flash)
 
 	v4l2_async_unregister_subdev(sd);
 
-	of_node_put(sd->of_node);
+	fwnode_handle_put(sd->fwnode);
 
 	v4l2_ctrl_handler_free(sd->ctrl_handler);
 	media_entity_cleanup(&sd->entity);
diff --git a/include/media/v4l2-flash-led-class.h b/include/media/v4l2-flash-led-class.h
index b0fe4d6..5695853 100644
--- a/include/media/v4l2-flash-led-class.h
+++ b/include/media/v4l2-flash-led-class.h
@@ -108,7 +108,7 @@ static inline struct v4l2_flash *v4l2_ctrl_to_v4l2_flash(struct v4l2_ctrl *c)
 /**
  * v4l2_flash_init - initialize V4L2 flash led sub-device
  * @dev:	flash device, e.g. an I2C device
- * @of_node:	of_node of the LED, may be NULL if the same as device's
+ * @fwn:	fwnode_handle of the LED, may be NULL if the same as device's
  * @fled_cdev:	LED flash class device to wrap
  * @iled_cdev:	LED flash class device representing indicator LED associated
  *		with fled_cdev, may be NULL
@@ -122,7 +122,7 @@ static inline struct v4l2_flash *v4l2_ctrl_to_v4l2_flash(struct v4l2_ctrl *c)
  * PTR_ERR() to obtain the numeric return value.
  */
 struct v4l2_flash *v4l2_flash_init(
-	struct device *dev, struct device_node *of_node,
+	struct device *dev, struct fwnode_handle *fwn,
 	struct led_classdev_flash *fled_cdev,
 	struct led_classdev_flash *iled_cdev,
 	const struct v4l2_flash_ops *ops,
-- 
2.7.4

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Re: [PATCH v2 1/8] v4l: flash led class: Use fwnode_handle instead of device_node in init

[kbuild test robot]

[-- Attachment #1: Type: text/plain, Size: 3470 bytes --]

Hi Sakari,

[auto build test ERROR on linuxtv-media/master]
[also build test ERROR on v4.11-rc5 next-20170406]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Sakari-Ailus/v4l-flash-led-class-Use-fwnode_handle-instead-of-device_node-in-init/20170407-133451
base:   git://linuxtv.org/media_tree.git master
config: i386-randconfig-x013-201714 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All error/warnings (new ones prefixed by >>):

   drivers/media//v4l2-core/v4l2-flash-led-class.c: In function 'v4l2_flash_init':
>> drivers/media//v4l2-core/v4l2-flash-led-class.c:642:4: error: 'struct v4l2_subdev' has no member named 'fwnode'; did you mean 'of_node'?
     sd->fwnode = fwn ? fwn : dev_fwnode(led_cdev->dev);
       ^~
>> drivers/media//v4l2-core/v4l2-flash-led-class.c:642:27: error: implicit declaration of function 'dev_fwnode' [-Werror=implicit-function-declaration]
     sd->fwnode = fwn ? fwn : dev_fwnode(led_cdev->dev);
                              ^~~~~~~~~~
>> drivers/media//v4l2-core/v4l2-flash-led-class.c:642:25: warning: pointer/integer type mismatch in conditional expression
     sd->fwnode = fwn ? fwn : dev_fwnode(led_cdev->dev);
                            ^
>> drivers/media//v4l2-core/v4l2-flash-led-class.c:658:2: error: implicit declaration of function 'fwnode_handle_get' [-Werror=implicit-function-declaration]
     fwnode_handle_get(sd->fwnode);
     ^~~~~~~~~~~~~~~~~
   drivers/media//v4l2-core/v4l2-flash-led-class.c:658:22: error: 'struct v4l2_subdev' has no member named 'fwnode'; did you mean 'of_node'?
     fwnode_handle_get(sd->fwnode);
                         ^~
   drivers/media//v4l2-core/v4l2-flash-led-class.c:667:22: error: 'struct v4l2_subdev' has no member named 'fwnode'; did you mean 'of_node'?
     fwnode_handle_put(sd->fwnode);
                         ^~
   drivers/media//v4l2-core/v4l2-flash-led-class.c: In function 'v4l2_flash_release':
   drivers/media//v4l2-core/v4l2-flash-led-class.c:687:22: error: 'struct v4l2_subdev' has no member named 'fwnode'; did you mean 'of_node'?
     fwnode_handle_put(sd->fwnode);
                         ^~
   cc1: some warnings being treated as errors

vim +642 drivers/media//v4l2-core/v4l2-flash-led-class.c

   636	
   637		sd = &v4l2_flash->sd;
   638		v4l2_flash->fled_cdev = fled_cdev;
   639		v4l2_flash->iled_cdev = iled_cdev;
   640		v4l2_flash->ops = ops;
   641		sd->dev = dev;
 > 642		sd->fwnode = fwn ? fwn : dev_fwnode(led_cdev->dev);
   643		v4l2_subdev_init(sd, &v4l2_flash_subdev_ops);
   644		sd->internal_ops = &v4l2_flash_subdev_internal_ops;
   645		sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
   646		strlcpy(sd->name, config->dev_name, sizeof(sd->name));
   647	
   648		ret = media_entity_pads_init(&sd->entity, 0, NULL);
   649		if (ret < 0)
   650			return ERR_PTR(ret);
   651	
   652		sd->entity.function = MEDIA_ENT_F_FLASH;
   653	
   654		ret = v4l2_flash_init_controls(v4l2_flash, config);
   655		if (ret < 0)
   656			goto err_init_controls;
   657	
 > 658		fwnode_handle_get(sd->fwnode);
   659	
   660		ret = v4l2_async_register_subdev(sd);
   661		if (ret < 0)

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 34590 bytes --]

Re: [PATCH v2 1/8] v4l: flash led class: Use fwnode_handle instead of device_node in init

[kbuild test robot]

[-- Attachment #1: Type: text/plain, Size: 2089 bytes --]

Hi Sakari,

[auto build test ERROR on linuxtv-media/master]
[also build test ERROR on v4.11-rc5 next-20170406]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Sakari-Ailus/v4l-flash-led-class-Use-fwnode_handle-instead-of-device_node-in-init/20170407-133451
base:   git://linuxtv.org/media_tree.git master
config: i386-randconfig-x014-201714 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All error/warnings (new ones prefixed by >>):

   drivers//leds/leds-max77693.c: In function 'max77693_register_led':
>> drivers//leds/leds-max77693.c:933:45: error: implicit declaration of function 'of_fwnode_handle' [-Werror=implicit-function-declaration]
     sub_led->v4l2_flash = v4l2_flash_init(dev, of_fwnode_handle(sub_node),
                                                ^~~~~~~~~~~~~~~~
>> drivers//leds/leds-max77693.c:933:45: warning: passing argument 2 of 'v4l2_flash_init' makes pointer from integer without a cast [-Wint-conversion]
   In file included from drivers//leds/leds-max77693.c:23:0:
   include/media/v4l2-flash-led-class.h:140:34: note: expected 'struct device_node *' but argument is of type 'int'
    static inline struct v4l2_flash *v4l2_flash_init(
                                     ^~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/of_fwnode_handle +933 drivers//leds/leds-max77693.c

   927		if (ret < 0)
   928			return ret;
   929	
   930		max77693_init_v4l2_flash_config(sub_led, led_cfg, &v4l2_sd_cfg);
   931	
   932		/* Register in the V4L2 subsystem. */
 > 933		sub_led->v4l2_flash = v4l2_flash_init(dev, of_fwnode_handle(sub_node),
   934						      fled_cdev, NULL, &v4l2_flash_ops,
   935						      &v4l2_sd_cfg);
   936		if (IS_ERR(sub_led->v4l2_flash)) {

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 25664 bytes --]

[PATCH v2 8/8] v4l: Remove V4L2 OF framework in favour of V4L2 fwnode framework

[Sakari Ailus]

All drivers have been converted from V4L2 OF to V4L2 fwnode. The V4L2 OF
framework is now unused. Remove it.

Signed-off-by: Sakari Ailus <sakari.ailus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
---
 drivers/media/v4l2-core/Makefile  |   3 -
 drivers/media/v4l2-core/v4l2-of.c | 327 --------------------------------------
 include/media/v4l2-of.h           | 128 ---------------
 3 files changed, 458 deletions(-)
 delete mode 100644 drivers/media/v4l2-core/v4l2-of.c
 delete mode 100644 include/media/v4l2-of.h

diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile
index cf77a63..098ad5f 100644
--- a/drivers/media/v4l2-core/Makefile
+++ b/drivers/media/v4l2-core/Makefile
@@ -10,9 +10,6 @@ videodev-objs	:=	v4l2-dev.o v4l2-ioctl.o v4l2-device.o v4l2-fh.o \
 ifeq ($(CONFIG_COMPAT),y)
   videodev-objs += v4l2-compat-ioctl32.o
 endif
-ifeq ($(CONFIG_OF),y)
-  videodev-objs += v4l2-of.o
-endif
 obj-$(CONFIG_V4L2_FWNODE) += v4l2-fwnode.o
 ifeq ($(CONFIG_TRACEPOINTS),y)
   videodev-objs += vb2-trace.o v4l2-trace.o
diff --git a/drivers/media/v4l2-core/v4l2-of.c b/drivers/media/v4l2-core/v4l2-of.c
deleted file mode 100644
index 4f59f44..0000000
--- a/drivers/media/v4l2-core/v4l2-of.c
+++ /dev/null
@@ -1,327 +0,0 @@
-/*
- * V4L2 OF binding parsing library
- *
- * Copyright (C) 2012 - 2013 Samsung Electronics Co., Ltd.
- * Author: Sylwester Nawrocki <s.nawrocki-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
- *
- * Copyright (C) 2012 Renesas Electronics Corp.
- * Author: Guennadi Liakhovetski <g.liakhovetski-Mmb7MZpHnFY@public.gmane.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/types.h>
-
-#include <media/v4l2-of.h>
-
-static int v4l2_of_parse_csi_bus(const struct device_node *node,
-				 struct v4l2_of_endpoint *endpoint)
-{
-	struct v4l2_of_bus_mipi_csi2 *bus = &endpoint->bus.mipi_csi2;
-	struct property *prop;
-	bool have_clk_lane = false;
-	unsigned int flags = 0, lanes_used = 0;
-	u32 v;
-
-	prop = of_find_property(node, "data-lanes", NULL);
-	if (prop) {
-		const __be32 *lane = NULL;
-		unsigned int i;
-
-		for (i = 0; i < ARRAY_SIZE(bus->data_lanes); i++) {
-			lane = of_prop_next_u32(prop, lane, &v);
-			if (!lane)
-				break;
-
-			if (lanes_used & BIT(v))
-				pr_warn("%s: duplicated lane %u in data-lanes\n",
-					node->full_name, v);
-			lanes_used |= BIT(v);
-
-			bus->data_lanes[i] = v;
-		}
-		bus->num_data_lanes = i;
-	}
-
-	prop = of_find_property(node, "lane-polarities", NULL);
-	if (prop) {
-		const __be32 *polarity = NULL;
-		unsigned int i;
-
-		for (i = 0; i < ARRAY_SIZE(bus->lane_polarities); i++) {
-			polarity = of_prop_next_u32(prop, polarity, &v);
-			if (!polarity)
-				break;
-			bus->lane_polarities[i] = v;
-		}
-
-		if (i < 1 + bus->num_data_lanes /* clock + data */) {
-			pr_warn("%s: too few lane-polarities entries (need %u, got %u)\n",
-				node->full_name, 1 + bus->num_data_lanes, i);
-			return -EINVAL;
-		}
-	}
-
-	if (!of_property_read_u32(node, "clock-lanes", &v)) {
-		if (lanes_used & BIT(v))
-			pr_warn("%s: duplicated lane %u in clock-lanes\n",
-				node->full_name, v);
-		lanes_used |= BIT(v);
-
-		bus->clock_lane = v;
-		have_clk_lane = true;
-	}
-
-	if (of_get_property(node, "clock-noncontinuous", &v))
-		flags |= V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK;
-	else if (have_clk_lane || bus->num_data_lanes > 0)
-		flags |= V4L2_MBUS_CSI2_CONTINUOUS_CLOCK;
-
-	bus->flags = flags;
-	endpoint->bus_type = V4L2_MBUS_CSI2;
-
-	return 0;
-}
-
-static void v4l2_of_parse_parallel_bus(const struct device_node *node,
-				       struct v4l2_of_endpoint *endpoint)
-{
-	struct v4l2_of_bus_parallel *bus = &endpoint->bus.parallel;
-	unsigned int flags = 0;
-	u32 v;
-
-	if (!of_property_read_u32(node, "hsync-active", &v))
-		flags |= v ? V4L2_MBUS_HSYNC_ACTIVE_HIGH :
-			V4L2_MBUS_HSYNC_ACTIVE_LOW;
-
-	if (!of_property_read_u32(node, "vsync-active", &v))
-		flags |= v ? V4L2_MBUS_VSYNC_ACTIVE_HIGH :
-			V4L2_MBUS_VSYNC_ACTIVE_LOW;
-
-	if (!of_property_read_u32(node, "field-even-active", &v))
-		flags |= v ? V4L2_MBUS_FIELD_EVEN_HIGH :
-			V4L2_MBUS_FIELD_EVEN_LOW;
-	if (flags)
-		endpoint->bus_type = V4L2_MBUS_PARALLEL;
-	else
-		endpoint->bus_type = V4L2_MBUS_BT656;
-
-	if (!of_property_read_u32(node, "pclk-sample", &v))
-		flags |= v ? V4L2_MBUS_PCLK_SAMPLE_RISING :
-			V4L2_MBUS_PCLK_SAMPLE_FALLING;
-
-	if (!of_property_read_u32(node, "data-active", &v))
-		flags |= v ? V4L2_MBUS_DATA_ACTIVE_HIGH :
-			V4L2_MBUS_DATA_ACTIVE_LOW;
-
-	if (of_get_property(node, "slave-mode", &v))
-		flags |= V4L2_MBUS_SLAVE;
-	else
-		flags |= V4L2_MBUS_MASTER;
-
-	if (!of_property_read_u32(node, "bus-width", &v))
-		bus->bus_width = v;
-
-	if (!of_property_read_u32(node, "data-shift", &v))
-		bus->data_shift = v;
-
-	if (!of_property_read_u32(node, "sync-on-green-active", &v))
-		flags |= v ? V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH :
-			V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW;
-
-	bus->flags = flags;
-
-}
-
-/**
- * v4l2_of_parse_endpoint() - parse all endpoint node properties
- * @node: pointer to endpoint device_node
- * @endpoint: pointer to the V4L2 OF endpoint data structure
- *
- * All properties are optional. If none are found, we don't set any flags.
- * This means the port has a static configuration and no properties have
- * to be specified explicitly.
- * If any properties that identify the bus as parallel are found and
- * slave-mode isn't set, we set V4L2_MBUS_MASTER. Similarly, if we recognise
- * the bus as serial CSI-2 and clock-noncontinuous isn't set, we set the
- * V4L2_MBUS_CSI2_CONTINUOUS_CLOCK flag.
- * The caller should hold a reference to @node.
- *
- * NOTE: This function does not parse properties the size of which is
- * variable without a low fixed limit. Please use
- * v4l2_of_alloc_parse_endpoint() in new drivers instead.
- *
- * Return: 0 on success or a negative error code on failure.
- */
-int v4l2_of_parse_endpoint(const struct device_node *node,
-			   struct v4l2_of_endpoint *endpoint)
-{
-	int rval;
-
-	of_graph_parse_endpoint(node, &endpoint->base);
-	/* Zero fields from bus_type to until the end */
-	memset(&endpoint->bus_type, 0, sizeof(*endpoint) -
-	       offsetof(typeof(*endpoint), bus_type));
-
-	rval = v4l2_of_parse_csi_bus(node, endpoint);
-	if (rval)
-		return rval;
-	/*
-	 * Parse the parallel video bus properties only if none
-	 * of the MIPI CSI-2 specific properties were found.
-	 */
-	if (endpoint->bus.mipi_csi2.flags == 0)
-		v4l2_of_parse_parallel_bus(node, endpoint);
-
-	return 0;
-}
-EXPORT_SYMBOL(v4l2_of_parse_endpoint);
-
-/*
- * v4l2_of_free_endpoint() - free the endpoint acquired by
- * v4l2_of_alloc_parse_endpoint()
- * @endpoint - the endpoint the resources of which are to be released
- *
- * It is safe to call this function with NULL argument or on an
- * endpoint the parsing of which failed.
- */
-void v4l2_of_free_endpoint(struct v4l2_of_endpoint *endpoint)
-{
-	if (IS_ERR_OR_NULL(endpoint))
-		return;
-
-	kfree(endpoint->link_frequencies);
-	kfree(endpoint);
-}
-EXPORT_SYMBOL(v4l2_of_free_endpoint);
-
-/**
- * v4l2_of_alloc_parse_endpoint() - parse all endpoint node properties
- * @node: pointer to endpoint device_node
- *
- * All properties are optional. If none are found, we don't set any flags.
- * This means the port has a static configuration and no properties have
- * to be specified explicitly.
- * If any properties that identify the bus as parallel are found and
- * slave-mode isn't set, we set V4L2_MBUS_MASTER. Similarly, if we recognise
- * the bus as serial CSI-2 and clock-noncontinuous isn't set, we set the
- * V4L2_MBUS_CSI2_CONTINUOUS_CLOCK flag.
- * The caller should hold a reference to @node.
- *
- * v4l2_of_alloc_parse_endpoint() has two important differences to
- * v4l2_of_parse_endpoint():
- *
- * 1. It also parses variable size data and
- *
- * 2. The memory it has allocated to store the variable size data must
- *    be freed using v4l2_of_free_endpoint() when no longer needed.
- *
- * Return: Pointer to v4l2_of_endpoint if successful, on error a
- * negative error code.
- */
-struct v4l2_of_endpoint *v4l2_of_alloc_parse_endpoint(
-	const struct device_node *node)
-{
-	struct v4l2_of_endpoint *endpoint;
-	int len;
-	int rval;
-
-	endpoint = kzalloc(sizeof(*endpoint), GFP_KERNEL);
-	if (!endpoint)
-		return ERR_PTR(-ENOMEM);
-
-	rval = v4l2_of_parse_endpoint(node, endpoint);
-	if (rval < 0)
-		goto out_err;
-
-	if (of_get_property(node, "link-frequencies", &len)) {
-		endpoint->link_frequencies = kmalloc(len, GFP_KERNEL);
-		if (!endpoint->link_frequencies) {
-			rval = -ENOMEM;
-			goto out_err;
-		}
-
-		endpoint->nr_of_link_frequencies =
-			len / sizeof(*endpoint->link_frequencies);
-
-		rval = of_property_read_u64_array(
-			node, "link-frequencies", endpoint->link_frequencies,
-			endpoint->nr_of_link_frequencies);
-		if (rval < 0)
-			goto out_err;
-	}
-
-	return endpoint;
-
-out_err:
-	v4l2_of_free_endpoint(endpoint);
-	return ERR_PTR(rval);
-}
-EXPORT_SYMBOL(v4l2_of_alloc_parse_endpoint);
-
-/**
- * v4l2_of_parse_link() - parse a link between two endpoints
- * @node: pointer to the endpoint at the local end of the link
- * @link: pointer to the V4L2 OF link data structure
- *
- * Fill the link structure with the local and remote nodes and port numbers.
- * The local_node and remote_node fields are set to point to the local and
- * remote port's parent nodes respectively (the port parent node being the
- * parent node of the port node if that node isn't a 'ports' node, or the
- * grand-parent node of the port node otherwise).
- *
- * A reference is taken to both the local and remote nodes, the caller must use
- * v4l2_of_put_link() to drop the references when done with the link.
- *
- * Return: 0 on success, or -ENOLINK if the remote endpoint can't be found.
- */
-int v4l2_of_parse_link(const struct device_node *node,
-		       struct v4l2_of_link *link)
-{
-	struct device_node *np;
-
-	memset(link, 0, sizeof(*link));
-
-	np = of_get_parent(node);
-	of_property_read_u32(np, "reg", &link->local_port);
-	np = of_get_next_parent(np);
-	if (of_node_cmp(np->name, "ports") == 0)
-		np = of_get_next_parent(np);
-	link->local_node = np;
-
-	np = of_parse_phandle(node, "remote-endpoint", 0);
-	if (!np) {
-		of_node_put(link->local_node);
-		return -ENOLINK;
-	}
-
-	np = of_get_parent(np);
-	of_property_read_u32(np, "reg", &link->remote_port);
-	np = of_get_next_parent(np);
-	if (of_node_cmp(np->name, "ports") == 0)
-		np = of_get_next_parent(np);
-	link->remote_node = np;
-
-	return 0;
-}
-EXPORT_SYMBOL(v4l2_of_parse_link);
-
-/**
- * v4l2_of_put_link() - drop references to nodes in a link
- * @link: pointer to the V4L2 OF link data structure
- *
- * Drop references to the local and remote nodes in the link. This function must
- * be called on every link parsed with v4l2_of_parse_link().
- */
-void v4l2_of_put_link(struct v4l2_of_link *link)
-{
-	of_node_put(link->local_node);
-	of_node_put(link->remote_node);
-}
-EXPORT_SYMBOL(v4l2_of_put_link);
diff --git a/include/media/v4l2-of.h b/include/media/v4l2-of.h
deleted file mode 100644
index 4dc34b2..0000000
--- a/include/media/v4l2-of.h
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * V4L2 OF binding parsing library
- *
- * Copyright (C) 2012 - 2013 Samsung Electronics Co., Ltd.
- * Author: Sylwester Nawrocki <s.nawrocki-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
- *
- * Copyright (C) 2012 Renesas Electronics Corp.
- * Author: Guennadi Liakhovetski <g.liakhovetski-Mmb7MZpHnFY@public.gmane.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- */
-#ifndef _V4L2_OF_H
-#define _V4L2_OF_H
-
-#include <linux/list.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/of_graph.h>
-
-#include <media/v4l2-mediabus.h>
-
-struct device_node;
-
-/**
- * struct v4l2_of_bus_mipi_csi2 - MIPI CSI-2 bus data structure
- * @flags: media bus (V4L2_MBUS_*) flags
- * @data_lanes: an array of physical data lane indexes
- * @clock_lane: physical lane index of the clock lane
- * @num_data_lanes: number of data lanes
- * @lane_polarities: polarity of the lanes. The order is the same of
- *		   the physical lanes.
- */
-struct v4l2_of_bus_mipi_csi2 {
-	unsigned int flags;
-	unsigned char data_lanes[4];
-	unsigned char clock_lane;
-	unsigned short num_data_lanes;
-	bool lane_polarities[5];
-};
-
-/**
- * struct v4l2_of_bus_parallel - parallel data bus data structure
- * @flags: media bus (V4L2_MBUS_*) flags
- * @bus_width: bus width in bits
- * @data_shift: data shift in bits
- */
-struct v4l2_of_bus_parallel {
-	unsigned int flags;
-	unsigned char bus_width;
-	unsigned char data_shift;
-};
-
-/**
- * struct v4l2_of_endpoint - the endpoint data structure
- * @base: struct of_endpoint containing port, id, and local of_node
- * @bus_type: bus type
- * @bus: bus configuration data structure
- * @link_frequencies: array of supported link frequencies
- * @nr_of_link_frequencies: number of elements in link_frequenccies array
- */
-struct v4l2_of_endpoint {
-	struct of_endpoint base;
-	/* Fields below this line will be zeroed by v4l2_of_parse_endpoint() */
-	enum v4l2_mbus_type bus_type;
-	union {
-		struct v4l2_of_bus_parallel parallel;
-		struct v4l2_of_bus_mipi_csi2 mipi_csi2;
-	} bus;
-	u64 *link_frequencies;
-	unsigned int nr_of_link_frequencies;
-};
-
-/**
- * struct v4l2_of_link - a link between two endpoints
- * @local_node: pointer to device_node of this endpoint
- * @local_port: identifier of the port this endpoint belongs to
- * @remote_node: pointer to device_node of the remote endpoint
- * @remote_port: identifier of the port the remote endpoint belongs to
- */
-struct v4l2_of_link {
-	struct device_node *local_node;
-	unsigned int local_port;
-	struct device_node *remote_node;
-	unsigned int remote_port;
-};
-
-#ifdef CONFIG_OF
-int v4l2_of_parse_endpoint(const struct device_node *node,
-			   struct v4l2_of_endpoint *endpoint);
-struct v4l2_of_endpoint *v4l2_of_alloc_parse_endpoint(
-	const struct device_node *node);
-void v4l2_of_free_endpoint(struct v4l2_of_endpoint *endpoint);
-int v4l2_of_parse_link(const struct device_node *node,
-		       struct v4l2_of_link *link);
-void v4l2_of_put_link(struct v4l2_of_link *link);
-#else /* CONFIG_OF */
-
-static inline int v4l2_of_parse_endpoint(const struct device_node *node,
-					struct v4l2_of_endpoint *link)
-{
-	return -ENOSYS;
-}
-
-static inline struct v4l2_of_endpoint *v4l2_of_alloc_parse_endpoint(
-	const struct device_node *node)
-{
-	return NULL;
-}
-
-static inline void v4l2_of_free_endpoint(struct v4l2_of_endpoint *endpoint)
-{
-}
-
-static inline int v4l2_of_parse_link(const struct device_node *node,
-				     struct v4l2_of_link *link)
-{
-	return -ENOSYS;
-}
-
-static inline void v4l2_of_put_link(struct v4l2_of_link *link)
-{
-}
-
-#endif /* CONFIG_OF */
-
-#endif /* _V4L2_OF_H */
-- 
2.7.4

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[PATCH v2 0/9] V4L2 fwnode support

[Sakari Ailus]

(Resending, got one list address wrong. Apologies for the noise...)

Hello everyone, 

This patchset adds support for fwnode to V4L2. Besides OF, also ACPI based
systems can be supported this way. By using V4L2 fwnode, the individual 
drivers do not need to be aware of the underlying firmware implementation.
The patchset also removes specific V4L2 OF support and converts the 
affected drivers to use V4L2 fwnode.

The patchset depends on another patchset here:

<URL:http://www.spinics.net/lists/linux-acpi/msg72973.html>

v1 of the set can be found here:

<URL:http://www.spinics.net/lists/linux-media/msg111073.html>

changes since v1:

- Use existing dev_fwnode() instead of device_fwnode_handle() added by the
  ACPI graph patchset,

- Fix too long line of ^'s in ReST documentation and

- Drop the patch rearranging the header files. It'd better go in
  separately, if at all.

Sakari Ailus (8):
  v4l: flash led class: Use fwnode_handle instead of device_node in init
  v4l: fwnode: Support generic fwnode for parsing standardised
    properties
  v4l: async: Add fwnode match support
  v4l: async: Provide interoperability between OF and fwnode matching
  v4l: Switch from V4L2 OF not V4L2 fwnode API
  v4l: media/drv-intf/soc_mediabus.h: include dependent header file
  docs-rst: media: Switch documentation to V4L2 fwnode API
  v4l: Remove V4L2 OF framework in favour of V4L2 fwnode framework

 Documentation/media/kapi/v4l2-core.rst         |   2 +-
 Documentation/media/kapi/v4l2-fwnode.rst       |   3 +
 Documentation/media/kapi/v4l2-of.rst           |   3 -
 drivers/leds/leds-aat1290.c                    |   5 +-
 drivers/leds/leds-max77693.c                   |   5 +-
 drivers/media/i2c/Kconfig                      |   9 +
 drivers/media/i2c/adv7604.c                    |   7 +-
 drivers/media/i2c/mt9v032.c                    |   7 +-
 drivers/media/i2c/ov2659.c                     |   8 +-
 drivers/media/i2c/s5c73m3/s5c73m3-core.c       |   7 +-
 drivers/media/i2c/s5k5baf.c                    |   6 +-
 drivers/media/i2c/smiapp/Kconfig               |   1 +
 drivers/media/i2c/smiapp/smiapp-core.c         |  29 +-
 drivers/media/i2c/tc358743.c                   |  11 +-
 drivers/media/i2c/tvp514x.c                    |   6 +-
 drivers/media/i2c/tvp5150.c                    |   7 +-
 drivers/media/i2c/tvp7002.c                    |   6 +-
 drivers/media/platform/Kconfig                 |   3 +
 drivers/media/platform/am437x/Kconfig          |   1 +
 drivers/media/platform/am437x/am437x-vpfe.c    |   8 +-
 drivers/media/platform/atmel/Kconfig           |   1 +
 drivers/media/platform/atmel/atmel-isc.c       |   8 +-
 drivers/media/platform/exynos4-is/Kconfig      |   2 +
 drivers/media/platform/exynos4-is/media-dev.c  |   6 +-
 drivers/media/platform/exynos4-is/mipi-csis.c  |   6 +-
 drivers/media/platform/omap3isp/isp.c          |  71 ++---
 drivers/media/platform/pxa_camera.c            |   7 +-
 drivers/media/platform/rcar-vin/Kconfig        |   1 +
 drivers/media/platform/rcar-vin/rcar-core.c    |   6 +-
 drivers/media/platform/soc_camera/Kconfig      |   1 +
 drivers/media/platform/soc_camera/atmel-isi.c  |   7 +-
 drivers/media/platform/soc_camera/soc_camera.c |   3 +-
 drivers/media/platform/ti-vpe/cal.c            |  11 +-
 drivers/media/platform/xilinx/Kconfig          |   1 +
 drivers/media/platform/xilinx/xilinx-vipp.c    |  59 +++--
 drivers/media/v4l2-core/Kconfig                |   3 +
 drivers/media/v4l2-core/Makefile               |   4 +-
 drivers/media/v4l2-core/v4l2-async.c           |  36 ++-
 drivers/media/v4l2-core/v4l2-flash-led-class.c |  11 +-
 drivers/media/v4l2-core/v4l2-fwnode.c          | 353 +++++++++++++++++++++++++
 drivers/media/v4l2-core/v4l2-of.c              | 327 -----------------------
 include/media/drv-intf/soc_mediabus.h          |   2 +
 include/media/v4l2-async.h                     |   7 +-
 include/media/v4l2-flash-led-class.h           |   4 +-
 include/media/v4l2-fwnode.h                    | 104 ++++++++
 include/media/v4l2-of.h                        | 128 ---------
 include/media/v4l2-subdev.h                    |   3 +
 47 files changed, 698 insertions(+), 608 deletions(-)
 create mode 100644 Documentation/media/kapi/v4l2-fwnode.rst
 delete mode 100644 Documentation/media/kapi/v4l2-of.rst
 create mode 100644 drivers/media/v4l2-core/v4l2-fwnode.c
 delete mode 100644 drivers/media/v4l2-core/v4l2-of.c
 create mode 100644 include/media/v4l2-fwnode.h
 delete mode 100644 include/media/v4l2-of.h

-- 
2.7.4

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[PATCH v2 5/8] v4l: Switch from V4L2 OF not V4L2 fwnode API

[Sakari Ailus]

Switch users of the v4l2_of_ APIs to the more generic v4l2_fwnode_ APIs.

Existing OF matching continues to be supported. omap3isp and smiapp
drivers are converted to fwnode matching as well.

Signed-off-by: Sakari Ailus <sakari.ailus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Acked-by: Benoit Parrot <bparrot-l0cyMroinI0@public.gmane.org> # i2c/ov2569.c, am437x/am437x-vpfe.c and ti-vpe/cal.c
---
 drivers/media/i2c/Kconfig                      |  9 ++++
 drivers/media/i2c/adv7604.c                    |  7 +--
 drivers/media/i2c/mt9v032.c                    |  7 +--
 drivers/media/i2c/ov2659.c                     |  8 +--
 drivers/media/i2c/s5c73m3/s5c73m3-core.c       |  7 +--
 drivers/media/i2c/s5k5baf.c                    |  6 +--
 drivers/media/i2c/smiapp/Kconfig               |  1 +
 drivers/media/i2c/smiapp/smiapp-core.c         | 29 ++++++-----
 drivers/media/i2c/tc358743.c                   | 11 ++--
 drivers/media/i2c/tvp514x.c                    |  6 +--
 drivers/media/i2c/tvp5150.c                    |  7 +--
 drivers/media/i2c/tvp7002.c                    |  6 +--
 drivers/media/platform/Kconfig                 |  3 ++
 drivers/media/platform/am437x/Kconfig          |  1 +
 drivers/media/platform/am437x/am437x-vpfe.c    |  8 +--
 drivers/media/platform/atmel/Kconfig           |  1 +
 drivers/media/platform/atmel/atmel-isc.c       |  8 +--
 drivers/media/platform/exynos4-is/Kconfig      |  2 +
 drivers/media/platform/exynos4-is/media-dev.c  |  6 +--
 drivers/media/platform/exynos4-is/mipi-csis.c  |  6 +--
 drivers/media/platform/omap3isp/isp.c          | 71 +++++++++++++-------------
 drivers/media/platform/pxa_camera.c            |  7 +--
 drivers/media/platform/rcar-vin/Kconfig        |  1 +
 drivers/media/platform/rcar-vin/rcar-core.c    |  6 +--
 drivers/media/platform/soc_camera/Kconfig      |  1 +
 drivers/media/platform/soc_camera/atmel-isi.c  |  7 +--
 drivers/media/platform/soc_camera/soc_camera.c |  3 +-
 drivers/media/platform/ti-vpe/cal.c            | 11 ++--
 drivers/media/platform/xilinx/Kconfig          |  1 +
 drivers/media/platform/xilinx/xilinx-vipp.c    | 59 +++++++++++----------
 include/media/v4l2-fwnode.h                    |  4 +-
 31 files changed, 176 insertions(+), 134 deletions(-)

diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index cee1dae..6b2423a 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -210,6 +210,7 @@ config VIDEO_ADV7604
 	depends on GPIOLIB || COMPILE_TEST
 	select HDMI
 	select MEDIA_CEC_EDID
+	select V4L2_FWNODE
 	---help---
 	  Support for the Analog Devices ADV7604 video decoder.
 
@@ -324,6 +325,7 @@ config VIDEO_TC358743
 	tristate "Toshiba TC358743 decoder"
 	depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
 	select HDMI
+	select V4L2_FWNODE
 	---help---
 	  Support for the Toshiba TC358743 HDMI to MIPI CSI-2 bridge.
 
@@ -333,6 +335,7 @@ config VIDEO_TC358743
 config VIDEO_TVP514X
 	tristate "Texas Instruments TVP514x video decoder"
 	depends on VIDEO_V4L2 && I2C
+	select V4L2_FWNODE
 	---help---
 	  This is a Video4Linux2 sensor-level driver for the TI TVP5146/47
 	  decoder. It is currently working with the TI OMAP3 camera
@@ -344,6 +347,7 @@ config VIDEO_TVP514X
 config VIDEO_TVP5150
 	tristate "Texas Instruments TVP5150 video decoder"
 	depends on VIDEO_V4L2 && I2C
+	select V4L2_FWNODE
 	---help---
 	  Support for the Texas Instruments TVP5150 video decoder.
 
@@ -353,6 +357,7 @@ config VIDEO_TVP5150
 config VIDEO_TVP7002
 	tristate "Texas Instruments TVP7002 video decoder"
 	depends on VIDEO_V4L2 && I2C
+	select V4L2_FWNODE
 	---help---
 	  Support for the Texas Instruments TVP7002 video decoder.
 
@@ -524,6 +529,7 @@ config VIDEO_OV2659
 	tristate "OmniVision OV2659 sensor support"
 	depends on VIDEO_V4L2 && I2C
 	depends on MEDIA_CAMERA_SUPPORT
+	select V4L2_FWNODE
 	---help---
 	  This is a Video4Linux2 sensor-level driver for the OmniVision
 	  OV2659 camera.
@@ -616,6 +622,7 @@ config VIDEO_MT9V032
 	depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
 	depends on MEDIA_CAMERA_SUPPORT
 	select REGMAP_I2C
+	select V4L2_FWNODE
 	---help---
 	  This is a Video4Linux2 sensor-level driver for the Micron
 	  MT9V032 752x480 CMOS sensor.
@@ -663,6 +670,7 @@ config VIDEO_S5K4ECGX
 config VIDEO_S5K5BAF
 	tristate "Samsung S5K5BAF sensor support"
 	depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+	select V4L2_FWNODE
 	---help---
 	  This is a V4L2 sensor-level driver for Samsung S5K5BAF 2M
 	  camera sensor with an embedded SoC image signal processor.
@@ -673,6 +681,7 @@ source "drivers/media/i2c/et8ek8/Kconfig"
 config VIDEO_S5C73M3
 	tristate "Samsung S5C73M3 sensor support"
 	depends on I2C && SPI && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+	select V4L2_FWNODE
 	---help---
 	  This is a V4L2 sensor-level driver for Samsung S5C73M3
 	  8 Mpixel camera.
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index d8bf435..9281e54 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -33,6 +33,7 @@
 #include <linux/i2c.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of_graph.h>
 #include <linux/slab.h>
 #include <linux/v4l2-dv-timings.h>
 #include <linux/videodev2.h>
@@ -45,7 +46,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-event.h>
 #include <media/v4l2-dv-timings.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 static int debug;
 module_param(debug, int, 0644);
@@ -3069,7 +3070,7 @@ MODULE_DEVICE_TABLE(of, adv76xx_of_id);
 
 static int adv76xx_parse_dt(struct adv76xx_state *state)
 {
-	struct v4l2_of_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg;
 	struct device_node *endpoint;
 	struct device_node *np;
 	unsigned int flags;
@@ -3083,7 +3084,7 @@ static int adv76xx_parse_dt(struct adv76xx_state *state)
 	if (!endpoint)
 		return -EINVAL;
 
-	ret = v4l2_of_parse_endpoint(endpoint, &bus_cfg);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &bus_cfg);
 	if (ret) {
 		of_node_put(endpoint);
 		return ret;
diff --git a/drivers/media/i2c/mt9v032.c b/drivers/media/i2c/mt9v032.c
index 2e7a6e6..8a43064 100644
--- a/drivers/media/i2c/mt9v032.c
+++ b/drivers/media/i2c/mt9v032.c
@@ -19,6 +19,7 @@
 #include <linux/log2.h>
 #include <linux/mutex.h>
 #include <linux/of.h>
+#include <linux/of_graph.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
 #include <linux/videodev2.h>
@@ -28,7 +29,7 @@
 #include <media/i2c/mt9v032.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-device.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-subdev.h>
 
 /* The first four rows are black rows. The active area spans 753x481 pixels. */
@@ -979,7 +980,7 @@ static struct mt9v032_platform_data *
 mt9v032_get_pdata(struct i2c_client *client)
 {
 	struct mt9v032_platform_data *pdata = NULL;
-	struct v4l2_of_endpoint endpoint;
+	struct v4l2_fwnode_endpoint endpoint;
 	struct device_node *np;
 	struct property *prop;
 
@@ -990,7 +991,7 @@ mt9v032_get_pdata(struct i2c_client *client)
 	if (!np)
 		return NULL;
 
-	if (v4l2_of_parse_endpoint(np, &endpoint) < 0)
+	if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(np), &endpoint) < 0)
 		goto done;
 
 	pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
diff --git a/drivers/media/i2c/ov2659.c b/drivers/media/i2c/ov2659.c
index 6e63672..545ca3f 100644
--- a/drivers/media/i2c/ov2659.c
+++ b/drivers/media/i2c/ov2659.c
@@ -42,9 +42,9 @@
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-event.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-image-sizes.h>
 #include <media/v4l2-mediabus.h>
-#include <media/v4l2-of.h>
 #include <media/v4l2-subdev.h>
 
 #define DRIVER_NAME "ov2659"
@@ -1346,7 +1346,7 @@ static struct ov2659_platform_data *
 ov2659_get_pdata(struct i2c_client *client)
 {
 	struct ov2659_platform_data *pdata;
-	struct v4l2_of_endpoint *bus_cfg;
+	struct v4l2_fwnode_endpoint *bus_cfg;
 	struct device_node *endpoint;
 
 	if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node)
@@ -1356,7 +1356,7 @@ ov2659_get_pdata(struct i2c_client *client)
 	if (!endpoint)
 		return NULL;
 
-	bus_cfg = v4l2_of_alloc_parse_endpoint(endpoint);
+	bus_cfg = v4l2_fwnode_endpoint_alloc_parse(of_fwnode_handle(endpoint));
 	if (IS_ERR(bus_cfg)) {
 		pdata = NULL;
 		goto done;
@@ -1376,7 +1376,7 @@ ov2659_get_pdata(struct i2c_client *client)
 	pdata->link_frequency = bus_cfg->link_frequencies[0];
 
 done:
-	v4l2_of_free_endpoint(bus_cfg);
+	v4l2_fwnode_endpoint_free(bus_cfg);
 	of_node_put(endpoint);
 	return pdata;
 }
diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-core.c b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
index 3844853..f434fb2 100644
--- a/drivers/media/i2c/s5c73m3/s5c73m3-core.c
+++ b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
@@ -24,6 +24,7 @@
 #include <linux/media.h>
 #include <linux/module.h>
 #include <linux/of_gpio.h>
+#include <linux/of_graph.h>
 #include <linux/regulator/consumer.h>
 #include <linux/sizes.h>
 #include <linux/slab.h>
@@ -35,7 +36,7 @@
 #include <media/v4l2-subdev.h>
 #include <media/v4l2-mediabus.h>
 #include <media/i2c/s5c73m3.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include "s5c73m3.h"
 
@@ -1602,7 +1603,7 @@ static int s5c73m3_get_platform_data(struct s5c73m3 *state)
 	const struct s5c73m3_platform_data *pdata = dev->platform_data;
 	struct device_node *node = dev->of_node;
 	struct device_node *node_ep;
-	struct v4l2_of_endpoint ep;
+	struct v4l2_fwnode_endpoint ep;
 	int ret;
 
 	if (!node) {
@@ -1639,7 +1640,7 @@ static int s5c73m3_get_platform_data(struct s5c73m3 *state)
 		return 0;
 	}
 
-	ret = v4l2_of_parse_endpoint(node_ep, &ep);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(node_ep), &ep);
 	of_node_put(node_ep);
 	if (ret)
 		return ret;
diff --git a/drivers/media/i2c/s5k5baf.c b/drivers/media/i2c/s5k5baf.c
index db82ed0..962051b 100644
--- a/drivers/media/i2c/s5k5baf.c
+++ b/drivers/media/i2c/s5k5baf.c
@@ -30,7 +30,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-subdev.h>
 #include <media/v4l2-mediabus.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 static int debug;
 module_param(debug, int, 0644);
@@ -1841,7 +1841,7 @@ static int s5k5baf_parse_device_node(struct s5k5baf *state, struct device *dev)
 {
 	struct device_node *node = dev->of_node;
 	struct device_node *node_ep;
-	struct v4l2_of_endpoint ep;
+	struct v4l2_fwnode_endpoint ep;
 	int ret;
 
 	if (!node) {
@@ -1868,7 +1868,7 @@ static int s5k5baf_parse_device_node(struct s5k5baf *state, struct device *dev)
 		return -EINVAL;
 	}
 
-	ret = v4l2_of_parse_endpoint(node_ep, &ep);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(node_ep), &ep);
 	of_node_put(node_ep);
 	if (ret)
 		return ret;
diff --git a/drivers/media/i2c/smiapp/Kconfig b/drivers/media/i2c/smiapp/Kconfig
index 3149cda..f59718d 100644
--- a/drivers/media/i2c/smiapp/Kconfig
+++ b/drivers/media/i2c/smiapp/Kconfig
@@ -3,5 +3,6 @@ config VIDEO_SMIAPP
 	depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && HAVE_CLK
 	depends on MEDIA_CAMERA_SUPPORT
 	select VIDEO_SMIAPP_PLL
+	select V4L2_FWNODE
 	---help---
 	  This is a generic driver for SMIA++/SMIA camera modules.
diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c
index f4e92bd..4e28220 100644
--- a/drivers/media/i2c/smiapp/smiapp-core.c
+++ b/drivers/media/i2c/smiapp/smiapp-core.c
@@ -27,12 +27,13 @@
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
 #include <linux/pm_runtime.h>
+#include <linux/property.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 #include <linux/smiapp.h>
 #include <linux/v4l2-mediabus.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-device.h>
-#include <media/v4l2-of.h>
 
 #include "smiapp.h"
 
@@ -2784,19 +2785,20 @@ static int __maybe_unused smiapp_resume(struct device *dev)
 static struct smiapp_hwconfig *smiapp_get_hwconfig(struct device *dev)
 {
 	struct smiapp_hwconfig *hwcfg;
-	struct v4l2_of_endpoint *bus_cfg;
-	struct device_node *ep;
+	struct v4l2_fwnode_endpoint *bus_cfg;
+	struct fwnode_handle *ep;
+	struct fwnode_handle *fwn = dev_fwnode(dev);
 	int i;
 	int rval;
 
-	if (!dev->of_node)
+	if (!fwn)
 		return dev->platform_data;
 
-	ep = of_graph_get_next_endpoint(dev->of_node, NULL);
+	ep = fwnode_graph_get_next_endpoint(fwn, NULL);
 	if (!ep)
 		return NULL;
 
-	bus_cfg = v4l2_of_alloc_parse_endpoint(ep);
+	bus_cfg = v4l2_fwnode_endpoint_alloc_parse(ep);
 	if (IS_ERR(bus_cfg))
 		goto out_err;
 
@@ -2817,11 +2819,10 @@ static struct smiapp_hwconfig *smiapp_get_hwconfig(struct device *dev)
 	dev_dbg(dev, "lanes %u\n", hwcfg->lanes);
 
 	/* NVM size is not mandatory */
-	of_property_read_u32(dev->of_node, "nokia,nvm-size",
-				    &hwcfg->nvm_size);
+	fwnode_property_read_u32(fwn, "nokia,nvm-size", &hwcfg->nvm_size);
 
-	rval = of_property_read_u32(dev->of_node, "clock-frequency",
-				    &hwcfg->ext_clk);
+	rval = fwnode_property_read_u32(fwn, "clock-frequency",
+					&hwcfg->ext_clk);
 	if (rval) {
 		dev_warn(dev, "can't get clock-frequency\n");
 		goto out_err;
@@ -2846,13 +2847,13 @@ static struct smiapp_hwconfig *smiapp_get_hwconfig(struct device *dev)
 		dev_dbg(dev, "freq %d: %lld\n", i, hwcfg->op_sys_clock[i]);
 	}
 
-	v4l2_of_free_endpoint(bus_cfg);
-	of_node_put(ep);
+	v4l2_fwnode_endpoint_free(bus_cfg);
+	fwnode_handle_put(ep);
 	return hwcfg;
 
 out_err:
-	v4l2_of_free_endpoint(bus_cfg);
-	of_node_put(ep);
+	v4l2_fwnode_endpoint_free(bus_cfg);
+	fwnode_handle_put(ep);
 	return NULL;
 }
 
diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
index bf9d925..c4c894b 100644
--- a/drivers/media/i2c/tc358743.c
+++ b/drivers/media/i2c/tc358743.c
@@ -33,6 +33,7 @@
 #include <linux/delay.h>
 #include <linux/gpio/consumer.h>
 #include <linux/interrupt.h>
+#include <linux/of_graph.h>
 #include <linux/videodev2.h>
 #include <linux/workqueue.h>
 #include <linux/v4l2-dv-timings.h>
@@ -41,7 +42,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-event.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/i2c/tc358743.h>
 
 #include "tc358743_regs.h"
@@ -76,7 +77,7 @@ static const struct v4l2_dv_timings_cap tc358743_timings_cap = {
 
 struct tc358743_state {
 	struct tc358743_platform_data pdata;
-	struct v4l2_of_bus_mipi_csi2 bus;
+	struct v4l2_fwnode_bus_mipi_csi2 bus;
 	struct v4l2_subdev sd;
 	struct media_pad pad;
 	struct v4l2_ctrl_handler hdl;
@@ -1695,7 +1696,7 @@ static void tc358743_gpio_reset(struct tc358743_state *state)
 static int tc358743_probe_of(struct tc358743_state *state)
 {
 	struct device *dev = &state->i2c_client->dev;
-	struct v4l2_of_endpoint *endpoint;
+	struct v4l2_fwnode_endpoint *endpoint;
 	struct device_node *ep;
 	struct clk *refclk;
 	u32 bps_pr_lane;
@@ -1715,7 +1716,7 @@ static int tc358743_probe_of(struct tc358743_state *state)
 		return -EINVAL;
 	}
 
-	endpoint = v4l2_of_alloc_parse_endpoint(ep);
+	endpoint = v4l2_fwnode_endpoint_alloc_parse(of_fwnode_handle(ep));
 	if (IS_ERR(endpoint)) {
 		dev_err(dev, "failed to parse endpoint\n");
 		return PTR_ERR(endpoint);
@@ -1803,7 +1804,7 @@ static int tc358743_probe_of(struct tc358743_state *state)
 disable_clk:
 	clk_disable_unprepare(refclk);
 free_endpoint:
-	v4l2_of_free_endpoint(endpoint);
+	v4l2_fwnode_endpoint_free(endpoint);
 	return ret;
 }
 #else
diff --git a/drivers/media/i2c/tvp514x.c b/drivers/media/i2c/tvp514x.c
index 07853d2..ad2df99 100644
--- a/drivers/media/i2c/tvp514x.c
+++ b/drivers/media/i2c/tvp514x.c
@@ -38,7 +38,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-mediabus.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-ctrls.h>
 #include <media/i2c/tvp514x.h>
 #include <media/media-entity.h>
@@ -998,7 +998,7 @@ static struct tvp514x_platform_data *
 tvp514x_get_pdata(struct i2c_client *client)
 {
 	struct tvp514x_platform_data *pdata = NULL;
-	struct v4l2_of_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg;
 	struct device_node *endpoint;
 	unsigned int flags;
 
@@ -1009,7 +1009,7 @@ tvp514x_get_pdata(struct i2c_client *client)
 	if (!endpoint)
 		return NULL;
 
-	if (v4l2_of_parse_endpoint(endpoint, &bus_cfg))
+	if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &bus_cfg))
 		goto done;
 
 	pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index 48646a7..dff30a0 100644
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -12,10 +12,11 @@
 #include <linux/delay.h>
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
+#include <linux/of_graph.h>
 #include <media/v4l2-async.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-ctrls.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-mc.h>
 
 #include "tvp5150_reg.h"
@@ -1358,7 +1359,7 @@ static int tvp5150_init(struct i2c_client *c)
 
 static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
 {
-	struct v4l2_of_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg;
 	struct device_node *ep;
 #ifdef CONFIG_MEDIA_CONTROLLER
 	struct device_node *connectors, *child;
@@ -1373,7 +1374,7 @@ static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
 	if (!ep)
 		return -EINVAL;
 
-	ret = v4l2_of_parse_endpoint(ep, &bus_cfg);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg);
 	if (ret)
 		goto err;
 
diff --git a/drivers/media/i2c/tvp7002.c b/drivers/media/i2c/tvp7002.c
index 4c11901..a26c1a3 100644
--- a/drivers/media/i2c/tvp7002.c
+++ b/drivers/media/i2c/tvp7002.c
@@ -33,7 +33,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ctrls.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include "tvp7002_reg.h"
 
@@ -889,7 +889,7 @@ static const struct v4l2_subdev_ops tvp7002_ops = {
 static struct tvp7002_config *
 tvp7002_get_pdata(struct i2c_client *client)
 {
-	struct v4l2_of_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg;
 	struct tvp7002_config *pdata = NULL;
 	struct device_node *endpoint;
 	unsigned int flags;
@@ -901,7 +901,7 @@ tvp7002_get_pdata(struct i2c_client *client)
 	if (!endpoint)
 		return NULL;
 
-	if (v4l2_of_parse_endpoint(endpoint, &bus_cfg))
+	if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &bus_cfg))
 		goto done;
 
 	pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index ab0bb48..10862f0 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -82,6 +82,7 @@ config VIDEO_OMAP3
 	select ARM_DMA_USE_IOMMU
 	select VIDEOBUF2_DMA_CONTIG
 	select MFD_SYSCON
+	select V4L2_FWNODE
 	---help---
 	  Driver for an OMAP 3 camera controller.
 
@@ -97,6 +98,7 @@ config VIDEO_PXA27x
 	depends on PXA27x || COMPILE_TEST
 	select VIDEOBUF2_DMA_SG
 	select SG_SPLIT
+	select V4L2_FWNODE
 	---help---
 	  This is a v4l2 driver for the PXA27x Quick Capture Interface
 
@@ -127,6 +129,7 @@ config VIDEO_TI_CAL
 	depends on SOC_DRA7XX || COMPILE_TEST
 	depends on HAS_DMA
 	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
 	default n
 	---help---
 	  Support for the TI CAL (Camera Adaptation Layer) block
diff --git a/drivers/media/platform/am437x/Kconfig b/drivers/media/platform/am437x/Kconfig
index 42d9c18..160e77e 100644
--- a/drivers/media/platform/am437x/Kconfig
+++ b/drivers/media/platform/am437x/Kconfig
@@ -3,6 +3,7 @@ config VIDEO_AM437X_VPFE
 	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && HAS_DMA
 	depends on SOC_AM43XX || COMPILE_TEST
 	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
 	help
 	   Support for AM437x Video Processing Front End based Video
 	   Capture Driver.
diff --git a/drivers/media/platform/am437x/am437x-vpfe.c b/drivers/media/platform/am437x/am437x-vpfe.c
index 05489a4..3eb0bd2 100644
--- a/drivers/media/platform/am437x/am437x-vpfe.c
+++ b/drivers/media/platform/am437x/am437x-vpfe.c
@@ -26,6 +26,7 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/module.h>
+#include <linux/of_graph.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
@@ -36,7 +37,7 @@
 #include <media/v4l2-common.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-event.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include "am437x-vpfe.h"
 
@@ -2419,7 +2420,7 @@ static struct vpfe_config *
 vpfe_get_pdata(struct platform_device *pdev)
 {
 	struct device_node *endpoint = NULL;
-	struct v4l2_of_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg;
 	struct vpfe_subdev_info *sdinfo;
 	struct vpfe_config *pdata;
 	unsigned int flags;
@@ -2463,7 +2464,8 @@ vpfe_get_pdata(struct platform_device *pdev)
 			sdinfo->vpfe_param.if_type = VPFE_RAW_BAYER;
 		}
 
-		err = v4l2_of_parse_endpoint(endpoint, &bus_cfg);
+		err = v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint),
+						 &bus_cfg);
 		if (err) {
 			dev_err(&pdev->dev, "Could not parse the endpoint\n");
 			goto done;
diff --git a/drivers/media/platform/atmel/Kconfig b/drivers/media/platform/atmel/Kconfig
index 867dca2..3dbc89c 100644
--- a/drivers/media/platform/atmel/Kconfig
+++ b/drivers/media/platform/atmel/Kconfig
@@ -4,6 +4,7 @@ config VIDEO_ATMEL_ISC
 	depends on ARCH_AT91 || COMPILE_TEST
 	select VIDEOBUF2_DMA_CONTIG
 	select REGMAP_MMIO
+	select V4L2_FWNODE
 	help
 	   This module makes the ATMEL Image Sensor Controller available
 	   as a v4l2 device.
\ No newline at end of file
diff --git a/drivers/media/platform/atmel/atmel-isc.c b/drivers/media/platform/atmel/atmel-isc.c
index b380a7d..8e78da2 100644
--- a/drivers/media/platform/atmel/atmel-isc.c
+++ b/drivers/media/platform/atmel/atmel-isc.c
@@ -32,6 +32,7 @@
 #include <linux/math64.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_graph.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
@@ -42,7 +43,7 @@
 #include <media/v4l2-event.h>
 #include <media/v4l2-image-sizes.h>
 #include <media/v4l2-ioctl.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-subdev.h>
 #include <media/videobuf2-dma-contig.h>
 
@@ -1683,7 +1684,7 @@ static int isc_parse_dt(struct device *dev, struct isc_device *isc)
 {
 	struct device_node *np = dev->of_node;
 	struct device_node *epn = NULL, *rem;
-	struct v4l2_of_endpoint v4l2_epn;
+	struct v4l2_fwnode_endpoint v4l2_epn;
 	struct isc_subdev_entity *subdev_entity;
 	unsigned int flags;
 	int ret;
@@ -1702,7 +1703,8 @@ static int isc_parse_dt(struct device *dev, struct isc_device *isc)
 			continue;
 		}
 
-		ret = v4l2_of_parse_endpoint(epn, &v4l2_epn);
+		ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(epn),
+						 &v4l2_epn);
 		if (ret) {
 			of_node_put(rem);
 			ret = -EINVAL;
diff --git a/drivers/media/platform/exynos4-is/Kconfig b/drivers/media/platform/exynos4-is/Kconfig
index 57d42c6..c480efb 100644
--- a/drivers/media/platform/exynos4-is/Kconfig
+++ b/drivers/media/platform/exynos4-is/Kconfig
@@ -4,6 +4,7 @@ config VIDEO_SAMSUNG_EXYNOS4_IS
 	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
 	depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
 	depends on OF && COMMON_CLK
+	select V4L2_FWNODE
 	help
 	  Say Y here to enable camera host interface devices for
 	  Samsung S5P and EXYNOS SoC series.
@@ -32,6 +33,7 @@ config VIDEO_S5P_MIPI_CSIS
 	tristate "S5P/EXYNOS MIPI-CSI2 receiver (MIPI-CSIS) driver"
 	depends on REGULATOR
 	select GENERIC_PHY
+	select V4L2_FWNODE
 	help
 	  This is a V4L2 driver for Samsung S5P and EXYNOS4 SoC MIPI-CSI2
 	  receiver (MIPI-CSIS) devices.
diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
index e82450e9..4a1808c 100644
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c
@@ -29,7 +29,7 @@
 #include <linux/slab.h>
 #include <media/v4l2-async.h>
 #include <media/v4l2-ctrls.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/media-device.h>
 #include <media/drv-intf/exynos-fimc.h>
 
@@ -388,7 +388,7 @@ static int fimc_md_parse_port_node(struct fimc_md *fmd,
 {
 	struct fimc_source_info *pd = &fmd->sensor[index].pdata;
 	struct device_node *rem, *ep, *np;
-	struct v4l2_of_endpoint endpoint;
+	struct v4l2_fwnode_endpoint endpoint;
 	int ret;
 
 	/* Assume here a port node can have only one endpoint node. */
@@ -396,7 +396,7 @@ static int fimc_md_parse_port_node(struct fimc_md *fmd,
 	if (!ep)
 		return 0;
 
-	ret = v4l2_of_parse_endpoint(ep, &endpoint);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &endpoint);
 	if (ret) {
 		of_node_put(ep);
 		return ret;
diff --git a/drivers/media/platform/exynos4-is/mipi-csis.c b/drivers/media/platform/exynos4-is/mipi-csis.c
index f819b29..98c8987 100644
--- a/drivers/media/platform/exynos4-is/mipi-csis.c
+++ b/drivers/media/platform/exynos4-is/mipi-csis.c
@@ -30,7 +30,7 @@
 #include <linux/spinlock.h>
 #include <linux/videodev2.h>
 #include <media/drv-intf/exynos-fimc.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-subdev.h>
 
 #include "mipi-csis.h"
@@ -718,7 +718,7 @@ static int s5pcsis_parse_dt(struct platform_device *pdev,
 			    struct csis_state *state)
 {
 	struct device_node *node = pdev->dev.of_node;
-	struct v4l2_of_endpoint endpoint;
+	struct v4l2_fwnode_endpoint endpoint;
 	int ret;
 
 	if (of_property_read_u32(node, "clock-frequency",
@@ -735,7 +735,7 @@ static int s5pcsis_parse_dt(struct platform_device *pdev,
 		return -EINVAL;
 	}
 	/* Get port node and validate MIPI-CSI channel id. */
-	ret = v4l2_of_parse_endpoint(node, &endpoint);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(node), &endpoint);
 	if (ret)
 		goto err;
 
diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c
index 084ecf4a..95850b9 100644
--- a/drivers/media/platform/omap3isp/isp.c
+++ b/drivers/media/platform/omap3isp/isp.c
@@ -55,6 +55,7 @@
 #include <linux/module.h>
 #include <linux/omap-iommu.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 #include <linux/sched.h>
@@ -63,9 +64,9 @@
 #include <asm/dma-iommu.h>
 
 #include <media/v4l2-common.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-mc.h>
-#include <media/v4l2-of.h>
 
 #include "isp.h"
 #include "ispreg.h"
@@ -2024,43 +2025,42 @@ enum isp_of_phy {
 	ISP_OF_PHY_CSIPHY2,
 };
 
-static int isp_of_parse_node(struct device *dev, struct device_node *node,
-			     struct isp_async_subdev *isd)
+static int isp_fwnode_parse(struct device *dev, struct fwnode_handle *fwn,
+			    struct isp_async_subdev *isd)
 {
 	struct isp_bus_cfg *buscfg = &isd->bus;
-	struct v4l2_of_endpoint vep;
+	struct v4l2_fwnode_endpoint vfwn;
 	unsigned int i;
 	int ret;
 
-	ret = v4l2_of_parse_endpoint(node, &vep);
+	ret = v4l2_fwnode_endpoint_parse(fwn, &vfwn);
 	if (ret)
 		return ret;
 
-	dev_dbg(dev, "parsing endpoint %s, interface %u\n", node->full_name,
-		vep.base.port);
+	dev_dbg(dev, "interface %u\n", vfwn.base.port);
 
-	switch (vep.base.port) {
+	switch (vfwn.base.port) {
 	case ISP_OF_PHY_PARALLEL:
 		buscfg->interface = ISP_INTERFACE_PARALLEL;
 		buscfg->bus.parallel.data_lane_shift =
-			vep.bus.parallel.data_shift;
+			vfwn.bus.parallel.data_shift;
 		buscfg->bus.parallel.clk_pol =
-			!!(vep.bus.parallel.flags
+			!!(vfwn.bus.parallel.flags
 			   & V4L2_MBUS_PCLK_SAMPLE_FALLING);
 		buscfg->bus.parallel.hs_pol =
-			!!(vep.bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW);
+			!!(vfwn.bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW);
 		buscfg->bus.parallel.vs_pol =
-			!!(vep.bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW);
+			!!(vfwn.bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW);
 		buscfg->bus.parallel.fld_pol =
-			!!(vep.bus.parallel.flags & V4L2_MBUS_FIELD_EVEN_LOW);
+			!!(vfwn.bus.parallel.flags & V4L2_MBUS_FIELD_EVEN_LOW);
 		buscfg->bus.parallel.data_pol =
-			!!(vep.bus.parallel.flags & V4L2_MBUS_DATA_ACTIVE_LOW);
+			!!(vfwn.bus.parallel.flags & V4L2_MBUS_DATA_ACTIVE_LOW);
 		break;
 
 	case ISP_OF_PHY_CSIPHY1:
 	case ISP_OF_PHY_CSIPHY2:
 		/* FIXME: always assume CSI-2 for now. */
-		switch (vep.base.port) {
+		switch (vfwn.base.port) {
 		case ISP_OF_PHY_CSIPHY1:
 			buscfg->interface = ISP_INTERFACE_CSI2C_PHY1;
 			break;
@@ -2068,18 +2068,18 @@ static int isp_of_parse_node(struct device *dev, struct device_node *node,
 			buscfg->interface = ISP_INTERFACE_CSI2A_PHY2;
 			break;
 		}
-		buscfg->bus.csi2.lanecfg.clk.pos = vep.bus.mipi_csi2.clock_lane;
+		buscfg->bus.csi2.lanecfg.clk.pos = vfwn.bus.mipi_csi2.clock_lane;
 		buscfg->bus.csi2.lanecfg.clk.pol =
-			vep.bus.mipi_csi2.lane_polarities[0];
+			vfwn.bus.mipi_csi2.lane_polarities[0];
 		dev_dbg(dev, "clock lane polarity %u, pos %u\n",
 			buscfg->bus.csi2.lanecfg.clk.pol,
 			buscfg->bus.csi2.lanecfg.clk.pos);
 
 		for (i = 0; i < ISP_CSIPHY2_NUM_DATA_LANES; i++) {
 			buscfg->bus.csi2.lanecfg.data[i].pos =
-				vep.bus.mipi_csi2.data_lanes[i];
+				vfwn.bus.mipi_csi2.data_lanes[i];
 			buscfg->bus.csi2.lanecfg.data[i].pol =
-				vep.bus.mipi_csi2.lane_polarities[i + 1];
+				vfwn.bus.mipi_csi2.lane_polarities[i + 1];
 			dev_dbg(dev, "data lane %u polarity %u, pos %u\n", i,
 				buscfg->bus.csi2.lanecfg.data[i].pol,
 				buscfg->bus.csi2.lanecfg.data[i].pos);
@@ -2094,18 +2094,17 @@ static int isp_of_parse_node(struct device *dev, struct device_node *node,
 		break;
 
 	default:
-		dev_warn(dev, "%s: invalid interface %u\n", node->full_name,
-			 vep.base.port);
+		dev_warn(dev, "invalid interface %u\n", vfwn.base.port);
 		break;
 	}
 
 	return 0;
 }
 
-static int isp_of_parse_nodes(struct device *dev,
-			      struct v4l2_async_notifier *notifier)
+static int isp_fwnodes_parse(struct device *dev,
+			     struct v4l2_async_notifier *notifier)
 {
-	struct device_node *node = NULL;
+	struct fwnode_handle *fwn = NULL;
 
 	notifier->subdevs = devm_kcalloc(
 		dev, ISP_MAX_SUBDEVS, sizeof(*notifier->subdevs), GFP_KERNEL);
@@ -2113,7 +2112,8 @@ static int isp_of_parse_nodes(struct device *dev,
 		return -ENOMEM;
 
 	while (notifier->num_subdevs < ISP_MAX_SUBDEVS &&
-	       (node = of_graph_get_next_endpoint(dev->of_node, node))) {
+	       (fwn = fwnode_graph_get_next_endpoint(dev_fwnode(dev),
+						     fwn))) {
 		struct isp_async_subdev *isd;
 
 		isd = devm_kzalloc(dev, sizeof(*isd), GFP_KERNEL);
@@ -2122,23 +2122,24 @@ static int isp_of_parse_nodes(struct device *dev,
 
 		notifier->subdevs[notifier->num_subdevs] = &isd->asd;
 
-		if (isp_of_parse_node(dev, node, isd))
+		if (isp_fwnode_parse(dev, fwn, isd))
 			goto error;
 
-		isd->asd.match.of.node = of_graph_get_remote_port_parent(node);
-		if (!isd->asd.match.of.node) {
+		isd->asd.match.fwnode.fwn =
+			fwnode_graph_get_remote_port_parent(fwn);
+		if (!isd->asd.match.fwnode.fwn) {
 			dev_warn(dev, "bad remote port parent\n");
 			goto error;
 		}
 
-		isd->asd.match_type = V4L2_ASYNC_MATCH_OF;
+		isd->asd.match_type = V4L2_ASYNC_MATCH_FWNODE;
 		notifier->num_subdevs++;
 	}
 
 	return notifier->num_subdevs;
 
 error:
-	of_node_put(node);
+	fwnode_handle_put(fwn);
 	return -EINVAL;
 }
 
@@ -2209,8 +2210,8 @@ static int isp_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	ret = of_property_read_u32(pdev->dev.of_node, "ti,phy-type",
-				   &isp->phy_type);
+	ret = fwnode_property_read_u32(dev_fwnode(&pdev->dev),
+				       "ti,phy-type", &isp->phy_type);
 	if (ret)
 		return ret;
 
@@ -2219,12 +2220,12 @@ static int isp_probe(struct platform_device *pdev)
 	if (IS_ERR(isp->syscon))
 		return PTR_ERR(isp->syscon);
 
-	ret = of_property_read_u32_index(pdev->dev.of_node, "syscon", 1,
-					 &isp->syscon_offset);
+	ret = of_property_read_u32_index(pdev->dev.of_node,
+					 "syscon", 1, &isp->syscon_offset);
 	if (ret)
 		return ret;
 
-	ret = isp_of_parse_nodes(&pdev->dev, &isp->notifier);
+	ret = isp_fwnodes_parse(&pdev->dev, &isp->notifier);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/platform/pxa_camera.c b/drivers/media/platform/pxa_camera.c
index 929006f..1ad4cf9 100644
--- a/drivers/media/platform/pxa_camera.c
+++ b/drivers/media/platform/pxa_camera.c
@@ -25,6 +25,7 @@
 #include <linux/mm.h>
 #include <linux/moduleparam.h>
 #include <linux/of.h>
+#include <linux/of_graph.h>
 #include <linux/time.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
@@ -39,7 +40,7 @@
 #include <media/v4l2-common.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include <media/videobuf2-dma-sg.h>
 
@@ -2236,7 +2237,7 @@ static int pxa_camera_pdata_from_dt(struct device *dev,
 {
 	u32 mclk_rate;
 	struct device_node *remote, *np = dev->of_node;
-	struct v4l2_of_endpoint ep;
+	struct v4l2_fwnode_endpoint ep;
 	int err = of_property_read_u32(np, "clock-frequency",
 				       &mclk_rate);
 	if (!err) {
@@ -2250,7 +2251,7 @@ static int pxa_camera_pdata_from_dt(struct device *dev,
 		return -EINVAL;
 	}
 
-	err = v4l2_of_parse_endpoint(np, &ep);
+	err = v4l2_fwnode_endpoint_parse(of_fwnode_handle(np), &ep);
 	if (err) {
 		dev_err(dev, "could not parse endpoint\n");
 		goto out;
diff --git a/drivers/media/platform/rcar-vin/Kconfig b/drivers/media/platform/rcar-vin/Kconfig
index 111d2a1..af4c98b 100644
--- a/drivers/media/platform/rcar-vin/Kconfig
+++ b/drivers/media/platform/rcar-vin/Kconfig
@@ -3,6 +3,7 @@ config VIDEO_RCAR_VIN
 	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && OF && HAS_DMA && MEDIA_CONTROLLER
 	depends on ARCH_RENESAS || COMPILE_TEST
 	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
 	---help---
 	  Support for Renesas R-Car Video Input (VIN) driver.
 	  Supports R-Car Gen2 SoCs.
diff --git a/drivers/media/platform/rcar-vin/rcar-core.c b/drivers/media/platform/rcar-vin/rcar-core.c
index 098a0b1..72903fc 100644
--- a/drivers/media/platform/rcar-vin/rcar-core.c
+++ b/drivers/media/platform/rcar-vin/rcar-core.c
@@ -21,7 +21,7 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include "rcar-vin.h"
 
@@ -118,10 +118,10 @@ static int rvin_digitial_parse_v4l2(struct rvin_dev *vin,
 				    struct device_node *ep,
 				    struct v4l2_mbus_config *mbus_cfg)
 {
-	struct v4l2_of_endpoint v4l2_ep;
+	struct v4l2_fwnode_endpoint v4l2_ep;
 	int ret;
 
-	ret = v4l2_of_parse_endpoint(ep, &v4l2_ep);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &v4l2_ep);
 	if (ret) {
 		vin_err(vin, "Could not parse v4l2 endpoint\n");
 		return -EINVAL;
diff --git a/drivers/media/platform/soc_camera/Kconfig b/drivers/media/platform/soc_camera/Kconfig
index 2728276..7009e5b 100644
--- a/drivers/media/platform/soc_camera/Kconfig
+++ b/drivers/media/platform/soc_camera/Kconfig
@@ -32,6 +32,7 @@ config VIDEO_ATMEL_ISI
 	depends on ARCH_AT91 || COMPILE_TEST
 	depends on HAS_DMA
 	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
 	---help---
 	  This module makes the ATMEL Image Sensor Interface available
 	  as a v4l2 device.
diff --git a/drivers/media/platform/soc_camera/atmel-isi.c b/drivers/media/platform/soc_camera/atmel-isi.c
index 46de657..f9f2ad6 100644
--- a/drivers/media/platform/soc_camera/atmel-isi.c
+++ b/drivers/media/platform/soc_camera/atmel-isi.c
@@ -19,13 +19,14 @@
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of_graph.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
 
 #include <media/soc_camera.h>
 #include <media/drv-intf/soc_mediabus.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/videobuf2-dma-contig.h>
 
 #include "atmel-isi.h"
@@ -974,7 +975,7 @@ static int atmel_isi_parse_dt(struct atmel_isi *isi,
 			struct platform_device *pdev)
 {
 	struct device_node *np= pdev->dev.of_node;
-	struct v4l2_of_endpoint ep;
+	struct v4l2_fwnode_endpoint ep;
 	int err;
 
 	/* Default settings for ISI */
@@ -987,7 +988,7 @@ static int atmel_isi_parse_dt(struct atmel_isi *isi,
 		return -EINVAL;
 	}
 
-	err = v4l2_of_parse_endpoint(np, &ep);
+	err = v4l2_fwnode_endpoint_parse(of_fwnode_handle(np), &ep);
 	of_node_put(np);
 	if (err) {
 		dev_err(&pdev->dev, "Could not parse the endpoint\n");
diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c
index 3c9421f..0997d074 100644
--- a/drivers/media/platform/soc_camera/soc_camera.c
+++ b/drivers/media/platform/soc_camera/soc_camera.c
@@ -23,6 +23,7 @@
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
+#include <linux/of_graph.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/regulator/consumer.h>
@@ -36,7 +37,7 @@
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
 #include <media/v4l2-dev.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/videobuf2-v4l2.h>
 
 /* Default to VGA resolution */
diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c
index 7a058b6..f72f541 100644
--- a/drivers/media/platform/ti-vpe/cal.c
+++ b/drivers/media/platform/ti-vpe/cal.c
@@ -21,7 +21,7 @@
 #include <linux/of_device.h>
 #include <linux/of_graph.h>
 
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-async.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ctrls.h>
@@ -270,7 +270,7 @@ struct cal_ctx {
 	struct video_device	vdev;
 	struct v4l2_async_notifier notifier;
 	struct v4l2_subdev	*sensor;
-	struct v4l2_of_endpoint	endpoint;
+	struct v4l2_fwnode_endpoint	endpoint;
 
 	struct v4l2_async_subdev asd;
 	struct v4l2_async_subdev *asd_list[1];
@@ -608,7 +608,8 @@ static void csi2_lane_config(struct cal_ctx *ctx)
 	u32 val = reg_read(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port));
 	u32 lane_mask = CAL_CSI2_COMPLEXIO_CFG_CLOCK_POSITION_MASK;
 	u32 polarity_mask = CAL_CSI2_COMPLEXIO_CFG_CLOCK_POL_MASK;
-	struct v4l2_of_bus_mipi_csi2 *mipi_csi2 = &ctx->endpoint.bus.mipi_csi2;
+	struct v4l2_fwnode_bus_mipi_csi2 *mipi_csi2 =
+		&ctx->endpoint.bus.mipi_csi2;
 	int lane;
 
 	set_field(&val, mipi_csi2->clock_lane + 1, lane_mask);
@@ -1643,7 +1644,7 @@ static int of_cal_create_instance(struct cal_ctx *ctx, int inst)
 	struct platform_device *pdev = ctx->dev->pdev;
 	struct device_node *ep_node, *port, *remote_ep,
 			*sensor_node, *parent;
-	struct v4l2_of_endpoint *endpoint;
+	struct v4l2_fwnode_endpoint *endpoint;
 	struct v4l2_async_subdev *asd;
 	u32 regval = 0;
 	int ret, index, found_port = 0, lane;
@@ -1706,7 +1707,7 @@ static int of_cal_create_instance(struct cal_ctx *ctx, int inst)
 		ctx_dbg(3, ctx, "can't get remote-endpoint\n");
 		goto cleanup_exit;
 	}
-	v4l2_of_parse_endpoint(remote_ep, endpoint);
+	v4l2_fwnode_endpoint_parse(of_fwnode_handle(remote_ep), endpoint);
 
 	if (endpoint->bus_type != V4L2_MBUS_CSI2) {
 		ctx_err(ctx, "Port:%d sub-device %s is not a CSI2 device\n",
diff --git a/drivers/media/platform/xilinx/Kconfig b/drivers/media/platform/xilinx/Kconfig
index 84bae79..a5d21b7 100644
--- a/drivers/media/platform/xilinx/Kconfig
+++ b/drivers/media/platform/xilinx/Kconfig
@@ -2,6 +2,7 @@ config VIDEO_XILINX
 	tristate "Xilinx Video IP (EXPERIMENTAL)"
 	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && OF && HAS_DMA
 	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
 	---help---
 	  Driver for Xilinx Video IP Pipelines
 
diff --git a/drivers/media/platform/xilinx/xilinx-vipp.c b/drivers/media/platform/xilinx/xilinx-vipp.c
index feb3b2f..6a2721b 100644
--- a/drivers/media/platform/xilinx/xilinx-vipp.c
+++ b/drivers/media/platform/xilinx/xilinx-vipp.c
@@ -22,7 +22,7 @@
 #include <media/v4l2-async.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-device.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include "xilinx-dma.h"
 #include "xilinx-vipp.h"
@@ -74,7 +74,7 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
 	struct media_pad *local_pad;
 	struct media_pad *remote_pad;
 	struct xvip_graph_entity *ent;
-	struct v4l2_of_link link;
+	struct v4l2_fwnode_link link;
 	struct device_node *ep = NULL;
 	struct device_node *next;
 	int ret = 0;
@@ -92,7 +92,7 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
 
 		dev_dbg(xdev->dev, "processing endpoint %s\n", ep->full_name);
 
-		ret = v4l2_of_parse_link(ep, &link);
+		ret = v4l2_fwnode_parse_link(of_fwnode_handle(ep), &link);
 		if (ret < 0) {
 			dev_err(xdev->dev, "failed to parse link for %s\n",
 				ep->full_name);
@@ -103,9 +103,10 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
 		 * the link.
 		 */
 		if (link.local_port >= local->num_pads) {
-			dev_err(xdev->dev, "invalid port number %u on %s\n",
-				link.local_port, link.local_node->full_name);
-			v4l2_of_put_link(&link);
+			dev_err(xdev->dev, "invalid port number %u for %s\n",
+				link.local_port,
+				to_of_node(link.local_node)->full_name);
+			v4l2_fwnode_put_link(&link);
 			ret = -EINVAL;
 			break;
 		}
@@ -114,25 +115,28 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
 
 		if (local_pad->flags & MEDIA_PAD_FL_SINK) {
 			dev_dbg(xdev->dev, "skipping sink port %s:%u\n",
-				link.local_node->full_name, link.local_port);
-			v4l2_of_put_link(&link);
+				to_of_node(link.local_node)->full_name,
+				link.local_port);
+			v4l2_fwnode_put_link(&link);
 			continue;
 		}
 
 		/* Skip DMA engines, they will be processed separately. */
-		if (link.remote_node == xdev->dev->of_node) {
+		if (link.remote_node == of_fwnode_handle(xdev->dev->of_node)) {
 			dev_dbg(xdev->dev, "skipping DMA port %s:%u\n",
-				link.local_node->full_name, link.local_port);
-			v4l2_of_put_link(&link);
+				to_of_node(link.local_node)->full_name,
+				link.local_port);
+			v4l2_fwnode_put_link(&link);
 			continue;
 		}
 
 		/* Find the remote entity. */
-		ent = xvip_graph_find_entity(xdev, link.remote_node);
+		ent = xvip_graph_find_entity(xdev,
+					     to_of_node(link.remote_node));
 		if (ent == NULL) {
 			dev_err(xdev->dev, "no entity found for %s\n",
-				link.remote_node->full_name);
-			v4l2_of_put_link(&link);
+				to_of_node(link.remote_node)->full_name);
+			v4l2_fwnode_put_link(&link);
 			ret = -ENODEV;
 			break;
 		}
@@ -141,15 +145,16 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
 
 		if (link.remote_port >= remote->num_pads) {
 			dev_err(xdev->dev, "invalid port number %u on %s\n",
-				link.remote_port, link.remote_node->full_name);
-			v4l2_of_put_link(&link);
+				link.remote_port,
+				to_of_node(link.remote_node)->full_name);
+			v4l2_fwnode_put_link(&link);
 			ret = -EINVAL;
 			break;
 		}
 
 		remote_pad = &remote->pads[link.remote_port];
 
-		v4l2_of_put_link(&link);
+		v4l2_fwnode_put_link(&link);
 
 		/* Create the media link. */
 		dev_dbg(xdev->dev, "creating %s:%u -> %s:%u link\n",
@@ -194,7 +199,7 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
 	struct media_pad *source_pad;
 	struct media_pad *sink_pad;
 	struct xvip_graph_entity *ent;
-	struct v4l2_of_link link;
+	struct v4l2_fwnode_link link;
 	struct device_node *ep = NULL;
 	struct device_node *next;
 	struct xvip_dma *dma;
@@ -213,7 +218,7 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
 
 		dev_dbg(xdev->dev, "processing endpoint %s\n", ep->full_name);
 
-		ret = v4l2_of_parse_link(ep, &link);
+		ret = v4l2_fwnode_parse_link(of_fwnode_handle(ep), &link);
 		if (ret < 0) {
 			dev_err(xdev->dev, "failed to parse link for %s\n",
 				ep->full_name);
@@ -225,7 +230,7 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
 		if (dma == NULL) {
 			dev_err(xdev->dev, "no DMA engine found for port %u\n",
 				link.local_port);
-			v4l2_of_put_link(&link);
+			v4l2_fwnode_put_link(&link);
 			ret = -EINVAL;
 			break;
 		}
@@ -234,19 +239,21 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
 			dma->video.name);
 
 		/* Find the remote entity. */
-		ent = xvip_graph_find_entity(xdev, link.remote_node);
+		ent = xvip_graph_find_entity(xdev,
+					     to_of_node(link.remote_node));
 		if (ent == NULL) {
 			dev_err(xdev->dev, "no entity found for %s\n",
-				link.remote_node->full_name);
-			v4l2_of_put_link(&link);
+				to_of_node(link.remote_node)->full_name);
+			v4l2_fwnode_put_link(&link);
 			ret = -ENODEV;
 			break;
 		}
 
 		if (link.remote_port >= ent->entity->num_pads) {
 			dev_err(xdev->dev, "invalid port number %u on %s\n",
-				link.remote_port, link.remote_node->full_name);
-			v4l2_of_put_link(&link);
+				link.remote_port,
+				to_of_node(link.remote_node)->full_name);
+			v4l2_fwnode_put_link(&link);
 			ret = -EINVAL;
 			break;
 		}
@@ -263,7 +270,7 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
 			sink_pad = &dma->pad;
 		}
 
-		v4l2_of_put_link(&link);
+		v4l2_fwnode_put_link(&link);
 
 		/* Create the media link. */
 		dev_dbg(xdev->dev, "creating %s:%u -> %s:%u link\n",
diff --git a/include/media/v4l2-fwnode.h b/include/media/v4l2-fwnode.h
index a675d8a..bc9cf51 100644
--- a/include/media/v4l2-fwnode.h
+++ b/include/media/v4l2-fwnode.h
@@ -17,10 +17,10 @@
 #ifndef _V4L2_FWNODE_H
 #define _V4L2_FWNODE_H
 
+#include <linux/errno.h>
+#include <linux/fwnode.h>
 #include <linux/list.h>
 #include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/of_graph.h>
 
 #include <media/v4l2-mediabus.h>
 
-- 
2.7.4

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[PATCH v2 5/8] v4l: Switch from V4L2 OF not V4L2 fwnode API

[Sakari Ailus]

Switch users of the v4l2_of_ APIs to the more generic v4l2_fwnode_ APIs.

Existing OF matching continues to be supported. omap3isp and smiapp
drivers are converted to fwnode matching as well.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Benoit Parrot <bparrot@ti.com> # i2c/ov2569.c, am437x/am437x-vpfe.c and ti-vpe/cal.c
---
 drivers/media/i2c/Kconfig                      |  9 ++++
 drivers/media/i2c/adv7604.c                    |  7 +--
 drivers/media/i2c/mt9v032.c                    |  7 +--
 drivers/media/i2c/ov2659.c                     |  8 +--
 drivers/media/i2c/s5c73m3/s5c73m3-core.c       |  7 +--
 drivers/media/i2c/s5k5baf.c                    |  6 +--
 drivers/media/i2c/smiapp/Kconfig               |  1 +
 drivers/media/i2c/smiapp/smiapp-core.c         | 29 ++++++-----
 drivers/media/i2c/tc358743.c                   | 11 ++--
 drivers/media/i2c/tvp514x.c                    |  6 +--
 drivers/media/i2c/tvp5150.c                    |  7 +--
 drivers/media/i2c/tvp7002.c                    |  6 +--
 drivers/media/platform/Kconfig                 |  3 ++
 drivers/media/platform/am437x/Kconfig          |  1 +
 drivers/media/platform/am437x/am437x-vpfe.c    |  8 +--
 drivers/media/platform/atmel/Kconfig           |  1 +
 drivers/media/platform/atmel/atmel-isc.c       |  8 +--
 drivers/media/platform/exynos4-is/Kconfig      |  2 +
 drivers/media/platform/exynos4-is/media-dev.c  |  6 +--
 drivers/media/platform/exynos4-is/mipi-csis.c  |  6 +--
 drivers/media/platform/omap3isp/isp.c          | 71 +++++++++++++-------------
 drivers/media/platform/pxa_camera.c            |  7 +--
 drivers/media/platform/rcar-vin/Kconfig        |  1 +
 drivers/media/platform/rcar-vin/rcar-core.c    |  6 +--
 drivers/media/platform/soc_camera/Kconfig      |  1 +
 drivers/media/platform/soc_camera/atmel-isi.c  |  7 +--
 drivers/media/platform/soc_camera/soc_camera.c |  3 +-
 drivers/media/platform/ti-vpe/cal.c            | 11 ++--
 drivers/media/platform/xilinx/Kconfig          |  1 +
 drivers/media/platform/xilinx/xilinx-vipp.c    | 59 +++++++++++----------
 include/media/v4l2-fwnode.h                    |  4 +-
 31 files changed, 176 insertions(+), 134 deletions(-)

diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index cee1dae..6b2423a 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -210,6 +210,7 @@ config VIDEO_ADV7604
 	depends on GPIOLIB || COMPILE_TEST
 	select HDMI
 	select MEDIA_CEC_EDID
+	select V4L2_FWNODE
 	---help---
 	  Support for the Analog Devices ADV7604 video decoder.
 
@@ -324,6 +325,7 @@ config VIDEO_TC358743
 	tristate "Toshiba TC358743 decoder"
 	depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
 	select HDMI
+	select V4L2_FWNODE
 	---help---
 	  Support for the Toshiba TC358743 HDMI to MIPI CSI-2 bridge.
 
@@ -333,6 +335,7 @@ config VIDEO_TC358743
 config VIDEO_TVP514X
 	tristate "Texas Instruments TVP514x video decoder"
 	depends on VIDEO_V4L2 && I2C
+	select V4L2_FWNODE
 	---help---
 	  This is a Video4Linux2 sensor-level driver for the TI TVP5146/47
 	  decoder. It is currently working with the TI OMAP3 camera
@@ -344,6 +347,7 @@ config VIDEO_TVP514X
 config VIDEO_TVP5150
 	tristate "Texas Instruments TVP5150 video decoder"
 	depends on VIDEO_V4L2 && I2C
+	select V4L2_FWNODE
 	---help---
 	  Support for the Texas Instruments TVP5150 video decoder.
 
@@ -353,6 +357,7 @@ config VIDEO_TVP5150
 config VIDEO_TVP7002
 	tristate "Texas Instruments TVP7002 video decoder"
 	depends on VIDEO_V4L2 && I2C
+	select V4L2_FWNODE
 	---help---
 	  Support for the Texas Instruments TVP7002 video decoder.
 
@@ -524,6 +529,7 @@ config VIDEO_OV2659
 	tristate "OmniVision OV2659 sensor support"
 	depends on VIDEO_V4L2 && I2C
 	depends on MEDIA_CAMERA_SUPPORT
+	select V4L2_FWNODE
 	---help---
 	  This is a Video4Linux2 sensor-level driver for the OmniVision
 	  OV2659 camera.
@@ -616,6 +622,7 @@ config VIDEO_MT9V032
 	depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
 	depends on MEDIA_CAMERA_SUPPORT
 	select REGMAP_I2C
+	select V4L2_FWNODE
 	---help---
 	  This is a Video4Linux2 sensor-level driver for the Micron
 	  MT9V032 752x480 CMOS sensor.
@@ -663,6 +670,7 @@ config VIDEO_S5K4ECGX
 config VIDEO_S5K5BAF
 	tristate "Samsung S5K5BAF sensor support"
 	depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+	select V4L2_FWNODE
 	---help---
 	  This is a V4L2 sensor-level driver for Samsung S5K5BAF 2M
 	  camera sensor with an embedded SoC image signal processor.
@@ -673,6 +681,7 @@ source "drivers/media/i2c/et8ek8/Kconfig"
 config VIDEO_S5C73M3
 	tristate "Samsung S5C73M3 sensor support"
 	depends on I2C && SPI && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+	select V4L2_FWNODE
 	---help---
 	  This is a V4L2 sensor-level driver for Samsung S5C73M3
 	  8 Mpixel camera.
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index d8bf435..9281e54 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -33,6 +33,7 @@
 #include <linux/i2c.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of_graph.h>
 #include <linux/slab.h>
 #include <linux/v4l2-dv-timings.h>
 #include <linux/videodev2.h>
@@ -45,7 +46,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-event.h>
 #include <media/v4l2-dv-timings.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 static int debug;
 module_param(debug, int, 0644);
@@ -3069,7 +3070,7 @@ MODULE_DEVICE_TABLE(of, adv76xx_of_id);
 
 static int adv76xx_parse_dt(struct adv76xx_state *state)
 {
-	struct v4l2_of_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg;
 	struct device_node *endpoint;
 	struct device_node *np;
 	unsigned int flags;
@@ -3083,7 +3084,7 @@ static int adv76xx_parse_dt(struct adv76xx_state *state)
 	if (!endpoint)
 		return -EINVAL;
 
-	ret = v4l2_of_parse_endpoint(endpoint, &bus_cfg);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &bus_cfg);
 	if (ret) {
 		of_node_put(endpoint);
 		return ret;
diff --git a/drivers/media/i2c/mt9v032.c b/drivers/media/i2c/mt9v032.c
index 2e7a6e6..8a43064 100644
--- a/drivers/media/i2c/mt9v032.c
+++ b/drivers/media/i2c/mt9v032.c
@@ -19,6 +19,7 @@
 #include <linux/log2.h>
 #include <linux/mutex.h>
 #include <linux/of.h>
+#include <linux/of_graph.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
 #include <linux/videodev2.h>
@@ -28,7 +29,7 @@
 #include <media/i2c/mt9v032.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-device.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-subdev.h>
 
 /* The first four rows are black rows. The active area spans 753x481 pixels. */
@@ -979,7 +980,7 @@ static struct mt9v032_platform_data *
 mt9v032_get_pdata(struct i2c_client *client)
 {
 	struct mt9v032_platform_data *pdata = NULL;
-	struct v4l2_of_endpoint endpoint;
+	struct v4l2_fwnode_endpoint endpoint;
 	struct device_node *np;
 	struct property *prop;
 
@@ -990,7 +991,7 @@ mt9v032_get_pdata(struct i2c_client *client)
 	if (!np)
 		return NULL;
 
-	if (v4l2_of_parse_endpoint(np, &endpoint) < 0)
+	if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(np), &endpoint) < 0)
 		goto done;
 
 	pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
diff --git a/drivers/media/i2c/ov2659.c b/drivers/media/i2c/ov2659.c
index 6e63672..545ca3f 100644
--- a/drivers/media/i2c/ov2659.c
+++ b/drivers/media/i2c/ov2659.c
@@ -42,9 +42,9 @@
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-event.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-image-sizes.h>
 #include <media/v4l2-mediabus.h>
-#include <media/v4l2-of.h>
 #include <media/v4l2-subdev.h>
 
 #define DRIVER_NAME "ov2659"
@@ -1346,7 +1346,7 @@ static struct ov2659_platform_data *
 ov2659_get_pdata(struct i2c_client *client)
 {
 	struct ov2659_platform_data *pdata;
-	struct v4l2_of_endpoint *bus_cfg;
+	struct v4l2_fwnode_endpoint *bus_cfg;
 	struct device_node *endpoint;
 
 	if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node)
@@ -1356,7 +1356,7 @@ ov2659_get_pdata(struct i2c_client *client)
 	if (!endpoint)
 		return NULL;
 
-	bus_cfg = v4l2_of_alloc_parse_endpoint(endpoint);
+	bus_cfg = v4l2_fwnode_endpoint_alloc_parse(of_fwnode_handle(endpoint));
 	if (IS_ERR(bus_cfg)) {
 		pdata = NULL;
 		goto done;
@@ -1376,7 +1376,7 @@ ov2659_get_pdata(struct i2c_client *client)
 	pdata->link_frequency = bus_cfg->link_frequencies[0];
 
 done:
-	v4l2_of_free_endpoint(bus_cfg);
+	v4l2_fwnode_endpoint_free(bus_cfg);
 	of_node_put(endpoint);
 	return pdata;
 }
diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-core.c b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
index 3844853..f434fb2 100644
--- a/drivers/media/i2c/s5c73m3/s5c73m3-core.c
+++ b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
@@ -24,6 +24,7 @@
 #include <linux/media.h>
 #include <linux/module.h>
 #include <linux/of_gpio.h>
+#include <linux/of_graph.h>
 #include <linux/regulator/consumer.h>
 #include <linux/sizes.h>
 #include <linux/slab.h>
@@ -35,7 +36,7 @@
 #include <media/v4l2-subdev.h>
 #include <media/v4l2-mediabus.h>
 #include <media/i2c/s5c73m3.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include "s5c73m3.h"
 
@@ -1602,7 +1603,7 @@ static int s5c73m3_get_platform_data(struct s5c73m3 *state)
 	const struct s5c73m3_platform_data *pdata = dev->platform_data;
 	struct device_node *node = dev->of_node;
 	struct device_node *node_ep;
-	struct v4l2_of_endpoint ep;
+	struct v4l2_fwnode_endpoint ep;
 	int ret;
 
 	if (!node) {
@@ -1639,7 +1640,7 @@ static int s5c73m3_get_platform_data(struct s5c73m3 *state)
 		return 0;
 	}
 
-	ret = v4l2_of_parse_endpoint(node_ep, &ep);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(node_ep), &ep);
 	of_node_put(node_ep);
 	if (ret)
 		return ret;
diff --git a/drivers/media/i2c/s5k5baf.c b/drivers/media/i2c/s5k5baf.c
index db82ed0..962051b 100644
--- a/drivers/media/i2c/s5k5baf.c
+++ b/drivers/media/i2c/s5k5baf.c
@@ -30,7 +30,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-subdev.h>
 #include <media/v4l2-mediabus.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 static int debug;
 module_param(debug, int, 0644);
@@ -1841,7 +1841,7 @@ static int s5k5baf_parse_device_node(struct s5k5baf *state, struct device *dev)
 {
 	struct device_node *node = dev->of_node;
 	struct device_node *node_ep;
-	struct v4l2_of_endpoint ep;
+	struct v4l2_fwnode_endpoint ep;
 	int ret;
 
 	if (!node) {
@@ -1868,7 +1868,7 @@ static int s5k5baf_parse_device_node(struct s5k5baf *state, struct device *dev)
 		return -EINVAL;
 	}
 
-	ret = v4l2_of_parse_endpoint(node_ep, &ep);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(node_ep), &ep);
 	of_node_put(node_ep);
 	if (ret)
 		return ret;
diff --git a/drivers/media/i2c/smiapp/Kconfig b/drivers/media/i2c/smiapp/Kconfig
index 3149cda..f59718d 100644
--- a/drivers/media/i2c/smiapp/Kconfig
+++ b/drivers/media/i2c/smiapp/Kconfig
@@ -3,5 +3,6 @@ config VIDEO_SMIAPP
 	depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && HAVE_CLK
 	depends on MEDIA_CAMERA_SUPPORT
 	select VIDEO_SMIAPP_PLL
+	select V4L2_FWNODE
 	---help---
 	  This is a generic driver for SMIA++/SMIA camera modules.
diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c
index f4e92bd..4e28220 100644
--- a/drivers/media/i2c/smiapp/smiapp-core.c
+++ b/drivers/media/i2c/smiapp/smiapp-core.c
@@ -27,12 +27,13 @@
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
 #include <linux/pm_runtime.h>
+#include <linux/property.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 #include <linux/smiapp.h>
 #include <linux/v4l2-mediabus.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-device.h>
-#include <media/v4l2-of.h>
 
 #include "smiapp.h"
 
@@ -2784,19 +2785,20 @@ static int __maybe_unused smiapp_resume(struct device *dev)
 static struct smiapp_hwconfig *smiapp_get_hwconfig(struct device *dev)
 {
 	struct smiapp_hwconfig *hwcfg;
-	struct v4l2_of_endpoint *bus_cfg;
-	struct device_node *ep;
+	struct v4l2_fwnode_endpoint *bus_cfg;
+	struct fwnode_handle *ep;
+	struct fwnode_handle *fwn = dev_fwnode(dev);
 	int i;
 	int rval;
 
-	if (!dev->of_node)
+	if (!fwn)
 		return dev->platform_data;
 
-	ep = of_graph_get_next_endpoint(dev->of_node, NULL);
+	ep = fwnode_graph_get_next_endpoint(fwn, NULL);
 	if (!ep)
 		return NULL;
 
-	bus_cfg = v4l2_of_alloc_parse_endpoint(ep);
+	bus_cfg = v4l2_fwnode_endpoint_alloc_parse(ep);
 	if (IS_ERR(bus_cfg))
 		goto out_err;
 
@@ -2817,11 +2819,10 @@ static struct smiapp_hwconfig *smiapp_get_hwconfig(struct device *dev)
 	dev_dbg(dev, "lanes %u\n", hwcfg->lanes);
 
 	/* NVM size is not mandatory */
-	of_property_read_u32(dev->of_node, "nokia,nvm-size",
-				    &hwcfg->nvm_size);
+	fwnode_property_read_u32(fwn, "nokia,nvm-size", &hwcfg->nvm_size);
 
-	rval = of_property_read_u32(dev->of_node, "clock-frequency",
-				    &hwcfg->ext_clk);
+	rval = fwnode_property_read_u32(fwn, "clock-frequency",
+					&hwcfg->ext_clk);
 	if (rval) {
 		dev_warn(dev, "can't get clock-frequency\n");
 		goto out_err;
@@ -2846,13 +2847,13 @@ static struct smiapp_hwconfig *smiapp_get_hwconfig(struct device *dev)
 		dev_dbg(dev, "freq %d: %lld\n", i, hwcfg->op_sys_clock[i]);
 	}
 
-	v4l2_of_free_endpoint(bus_cfg);
-	of_node_put(ep);
+	v4l2_fwnode_endpoint_free(bus_cfg);
+	fwnode_handle_put(ep);
 	return hwcfg;
 
 out_err:
-	v4l2_of_free_endpoint(bus_cfg);
-	of_node_put(ep);
+	v4l2_fwnode_endpoint_free(bus_cfg);
+	fwnode_handle_put(ep);
 	return NULL;
 }
 
diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
index bf9d925..c4c894b 100644
--- a/drivers/media/i2c/tc358743.c
+++ b/drivers/media/i2c/tc358743.c
@@ -33,6 +33,7 @@
 #include <linux/delay.h>
 #include <linux/gpio/consumer.h>
 #include <linux/interrupt.h>
+#include <linux/of_graph.h>
 #include <linux/videodev2.h>
 #include <linux/workqueue.h>
 #include <linux/v4l2-dv-timings.h>
@@ -41,7 +42,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-event.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/i2c/tc358743.h>
 
 #include "tc358743_regs.h"
@@ -76,7 +77,7 @@ static const struct v4l2_dv_timings_cap tc358743_timings_cap = {
 
 struct tc358743_state {
 	struct tc358743_platform_data pdata;
-	struct v4l2_of_bus_mipi_csi2 bus;
+	struct v4l2_fwnode_bus_mipi_csi2 bus;
 	struct v4l2_subdev sd;
 	struct media_pad pad;
 	struct v4l2_ctrl_handler hdl;
@@ -1695,7 +1696,7 @@ static void tc358743_gpio_reset(struct tc358743_state *state)
 static int tc358743_probe_of(struct tc358743_state *state)
 {
 	struct device *dev = &state->i2c_client->dev;
-	struct v4l2_of_endpoint *endpoint;
+	struct v4l2_fwnode_endpoint *endpoint;
 	struct device_node *ep;
 	struct clk *refclk;
 	u32 bps_pr_lane;
@@ -1715,7 +1716,7 @@ static int tc358743_probe_of(struct tc358743_state *state)
 		return -EINVAL;
 	}
 
-	endpoint = v4l2_of_alloc_parse_endpoint(ep);
+	endpoint = v4l2_fwnode_endpoint_alloc_parse(of_fwnode_handle(ep));
 	if (IS_ERR(endpoint)) {
 		dev_err(dev, "failed to parse endpoint\n");
 		return PTR_ERR(endpoint);
@@ -1803,7 +1804,7 @@ static int tc358743_probe_of(struct tc358743_state *state)
 disable_clk:
 	clk_disable_unprepare(refclk);
 free_endpoint:
-	v4l2_of_free_endpoint(endpoint);
+	v4l2_fwnode_endpoint_free(endpoint);
 	return ret;
 }
 #else
diff --git a/drivers/media/i2c/tvp514x.c b/drivers/media/i2c/tvp514x.c
index 07853d2..ad2df99 100644
--- a/drivers/media/i2c/tvp514x.c
+++ b/drivers/media/i2c/tvp514x.c
@@ -38,7 +38,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-mediabus.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-ctrls.h>
 #include <media/i2c/tvp514x.h>
 #include <media/media-entity.h>
@@ -998,7 +998,7 @@ static struct tvp514x_platform_data *
 tvp514x_get_pdata(struct i2c_client *client)
 {
 	struct tvp514x_platform_data *pdata = NULL;
-	struct v4l2_of_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg;
 	struct device_node *endpoint;
 	unsigned int flags;
 
@@ -1009,7 +1009,7 @@ tvp514x_get_pdata(struct i2c_client *client)
 	if (!endpoint)
 		return NULL;
 
-	if (v4l2_of_parse_endpoint(endpoint, &bus_cfg))
+	if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &bus_cfg))
 		goto done;
 
 	pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index 48646a7..dff30a0 100644
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -12,10 +12,11 @@
 #include <linux/delay.h>
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
+#include <linux/of_graph.h>
 #include <media/v4l2-async.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-ctrls.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-mc.h>
 
 #include "tvp5150_reg.h"
@@ -1358,7 +1359,7 @@ static int tvp5150_init(struct i2c_client *c)
 
 static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
 {
-	struct v4l2_of_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg;
 	struct device_node *ep;
 #ifdef CONFIG_MEDIA_CONTROLLER
 	struct device_node *connectors, *child;
@@ -1373,7 +1374,7 @@ static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
 	if (!ep)
 		return -EINVAL;
 
-	ret = v4l2_of_parse_endpoint(ep, &bus_cfg);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg);
 	if (ret)
 		goto err;
 
diff --git a/drivers/media/i2c/tvp7002.c b/drivers/media/i2c/tvp7002.c
index 4c11901..a26c1a3 100644
--- a/drivers/media/i2c/tvp7002.c
+++ b/drivers/media/i2c/tvp7002.c
@@ -33,7 +33,7 @@
 #include <media/v4l2-device.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ctrls.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include "tvp7002_reg.h"
 
@@ -889,7 +889,7 @@ static const struct v4l2_subdev_ops tvp7002_ops = {
 static struct tvp7002_config *
 tvp7002_get_pdata(struct i2c_client *client)
 {
-	struct v4l2_of_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg;
 	struct tvp7002_config *pdata = NULL;
 	struct device_node *endpoint;
 	unsigned int flags;
@@ -901,7 +901,7 @@ tvp7002_get_pdata(struct i2c_client *client)
 	if (!endpoint)
 		return NULL;
 
-	if (v4l2_of_parse_endpoint(endpoint, &bus_cfg))
+	if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), &bus_cfg))
 		goto done;
 
 	pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index ab0bb48..10862f0 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -82,6 +82,7 @@ config VIDEO_OMAP3
 	select ARM_DMA_USE_IOMMU
 	select VIDEOBUF2_DMA_CONTIG
 	select MFD_SYSCON
+	select V4L2_FWNODE
 	---help---
 	  Driver for an OMAP 3 camera controller.
 
@@ -97,6 +98,7 @@ config VIDEO_PXA27x
 	depends on PXA27x || COMPILE_TEST
 	select VIDEOBUF2_DMA_SG
 	select SG_SPLIT
+	select V4L2_FWNODE
 	---help---
 	  This is a v4l2 driver for the PXA27x Quick Capture Interface
 
@@ -127,6 +129,7 @@ config VIDEO_TI_CAL
 	depends on SOC_DRA7XX || COMPILE_TEST
 	depends on HAS_DMA
 	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
 	default n
 	---help---
 	  Support for the TI CAL (Camera Adaptation Layer) block
diff --git a/drivers/media/platform/am437x/Kconfig b/drivers/media/platform/am437x/Kconfig
index 42d9c18..160e77e 100644
--- a/drivers/media/platform/am437x/Kconfig
+++ b/drivers/media/platform/am437x/Kconfig
@@ -3,6 +3,7 @@ config VIDEO_AM437X_VPFE
 	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && HAS_DMA
 	depends on SOC_AM43XX || COMPILE_TEST
 	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
 	help
 	   Support for AM437x Video Processing Front End based Video
 	   Capture Driver.
diff --git a/drivers/media/platform/am437x/am437x-vpfe.c b/drivers/media/platform/am437x/am437x-vpfe.c
index 05489a4..3eb0bd2 100644
--- a/drivers/media/platform/am437x/am437x-vpfe.c
+++ b/drivers/media/platform/am437x/am437x-vpfe.c
@@ -26,6 +26,7 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/module.h>
+#include <linux/of_graph.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
@@ -36,7 +37,7 @@
 #include <media/v4l2-common.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-event.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include "am437x-vpfe.h"
 
@@ -2419,7 +2420,7 @@ static struct vpfe_config *
 vpfe_get_pdata(struct platform_device *pdev)
 {
 	struct device_node *endpoint = NULL;
-	struct v4l2_of_endpoint bus_cfg;
+	struct v4l2_fwnode_endpoint bus_cfg;
 	struct vpfe_subdev_info *sdinfo;
 	struct vpfe_config *pdata;
 	unsigned int flags;
@@ -2463,7 +2464,8 @@ vpfe_get_pdata(struct platform_device *pdev)
 			sdinfo->vpfe_param.if_type = VPFE_RAW_BAYER;
 		}
 
-		err = v4l2_of_parse_endpoint(endpoint, &bus_cfg);
+		err = v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint),
+						 &bus_cfg);
 		if (err) {
 			dev_err(&pdev->dev, "Could not parse the endpoint\n");
 			goto done;
diff --git a/drivers/media/platform/atmel/Kconfig b/drivers/media/platform/atmel/Kconfig
index 867dca2..3dbc89c 100644
--- a/drivers/media/platform/atmel/Kconfig
+++ b/drivers/media/platform/atmel/Kconfig
@@ -4,6 +4,7 @@ config VIDEO_ATMEL_ISC
 	depends on ARCH_AT91 || COMPILE_TEST
 	select VIDEOBUF2_DMA_CONTIG
 	select REGMAP_MMIO
+	select V4L2_FWNODE
 	help
 	   This module makes the ATMEL Image Sensor Controller available
 	   as a v4l2 device.
\ No newline at end of file
diff --git a/drivers/media/platform/atmel/atmel-isc.c b/drivers/media/platform/atmel/atmel-isc.c
index b380a7d..8e78da2 100644
--- a/drivers/media/platform/atmel/atmel-isc.c
+++ b/drivers/media/platform/atmel/atmel-isc.c
@@ -32,6 +32,7 @@
 #include <linux/math64.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_graph.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
@@ -42,7 +43,7 @@
 #include <media/v4l2-event.h>
 #include <media/v4l2-image-sizes.h>
 #include <media/v4l2-ioctl.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-subdev.h>
 #include <media/videobuf2-dma-contig.h>
 
@@ -1683,7 +1684,7 @@ static int isc_parse_dt(struct device *dev, struct isc_device *isc)
 {
 	struct device_node *np = dev->of_node;
 	struct device_node *epn = NULL, *rem;
-	struct v4l2_of_endpoint v4l2_epn;
+	struct v4l2_fwnode_endpoint v4l2_epn;
 	struct isc_subdev_entity *subdev_entity;
 	unsigned int flags;
 	int ret;
@@ -1702,7 +1703,8 @@ static int isc_parse_dt(struct device *dev, struct isc_device *isc)
 			continue;
 		}
 
-		ret = v4l2_of_parse_endpoint(epn, &v4l2_epn);
+		ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(epn),
+						 &v4l2_epn);
 		if (ret) {
 			of_node_put(rem);
 			ret = -EINVAL;
diff --git a/drivers/media/platform/exynos4-is/Kconfig b/drivers/media/platform/exynos4-is/Kconfig
index 57d42c6..c480efb 100644
--- a/drivers/media/platform/exynos4-is/Kconfig
+++ b/drivers/media/platform/exynos4-is/Kconfig
@@ -4,6 +4,7 @@ config VIDEO_SAMSUNG_EXYNOS4_IS
 	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
 	depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
 	depends on OF && COMMON_CLK
+	select V4L2_FWNODE
 	help
 	  Say Y here to enable camera host interface devices for
 	  Samsung S5P and EXYNOS SoC series.
@@ -32,6 +33,7 @@ config VIDEO_S5P_MIPI_CSIS
 	tristate "S5P/EXYNOS MIPI-CSI2 receiver (MIPI-CSIS) driver"
 	depends on REGULATOR
 	select GENERIC_PHY
+	select V4L2_FWNODE
 	help
 	  This is a V4L2 driver for Samsung S5P and EXYNOS4 SoC MIPI-CSI2
 	  receiver (MIPI-CSIS) devices.
diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
index e82450e9..4a1808c 100644
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c
@@ -29,7 +29,7 @@
 #include <linux/slab.h>
 #include <media/v4l2-async.h>
 #include <media/v4l2-ctrls.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/media-device.h>
 #include <media/drv-intf/exynos-fimc.h>
 
@@ -388,7 +388,7 @@ static int fimc_md_parse_port_node(struct fimc_md *fmd,
 {
 	struct fimc_source_info *pd = &fmd->sensor[index].pdata;
 	struct device_node *rem, *ep, *np;
-	struct v4l2_of_endpoint endpoint;
+	struct v4l2_fwnode_endpoint endpoint;
 	int ret;
 
 	/* Assume here a port node can have only one endpoint node. */
@@ -396,7 +396,7 @@ static int fimc_md_parse_port_node(struct fimc_md *fmd,
 	if (!ep)
 		return 0;
 
-	ret = v4l2_of_parse_endpoint(ep, &endpoint);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &endpoint);
 	if (ret) {
 		of_node_put(ep);
 		return ret;
diff --git a/drivers/media/platform/exynos4-is/mipi-csis.c b/drivers/media/platform/exynos4-is/mipi-csis.c
index f819b29..98c8987 100644
--- a/drivers/media/platform/exynos4-is/mipi-csis.c
+++ b/drivers/media/platform/exynos4-is/mipi-csis.c
@@ -30,7 +30,7 @@
 #include <linux/spinlock.h>
 #include <linux/videodev2.h>
 #include <media/drv-intf/exynos-fimc.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-subdev.h>
 
 #include "mipi-csis.h"
@@ -718,7 +718,7 @@ static int s5pcsis_parse_dt(struct platform_device *pdev,
 			    struct csis_state *state)
 {
 	struct device_node *node = pdev->dev.of_node;
-	struct v4l2_of_endpoint endpoint;
+	struct v4l2_fwnode_endpoint endpoint;
 	int ret;
 
 	if (of_property_read_u32(node, "clock-frequency",
@@ -735,7 +735,7 @@ static int s5pcsis_parse_dt(struct platform_device *pdev,
 		return -EINVAL;
 	}
 	/* Get port node and validate MIPI-CSI channel id. */
-	ret = v4l2_of_parse_endpoint(node, &endpoint);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(node), &endpoint);
 	if (ret)
 		goto err;
 
diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c
index 084ecf4a..95850b9 100644
--- a/drivers/media/platform/omap3isp/isp.c
+++ b/drivers/media/platform/omap3isp/isp.c
@@ -55,6 +55,7 @@
 #include <linux/module.h>
 #include <linux/omap-iommu.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 #include <linux/sched.h>
@@ -63,9 +64,9 @@
 #include <asm/dma-iommu.h>
 
 #include <media/v4l2-common.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-mc.h>
-#include <media/v4l2-of.h>
 
 #include "isp.h"
 #include "ispreg.h"
@@ -2024,43 +2025,42 @@ enum isp_of_phy {
 	ISP_OF_PHY_CSIPHY2,
 };
 
-static int isp_of_parse_node(struct device *dev, struct device_node *node,
-			     struct isp_async_subdev *isd)
+static int isp_fwnode_parse(struct device *dev, struct fwnode_handle *fwn,
+			    struct isp_async_subdev *isd)
 {
 	struct isp_bus_cfg *buscfg = &isd->bus;
-	struct v4l2_of_endpoint vep;
+	struct v4l2_fwnode_endpoint vfwn;
 	unsigned int i;
 	int ret;
 
-	ret = v4l2_of_parse_endpoint(node, &vep);
+	ret = v4l2_fwnode_endpoint_parse(fwn, &vfwn);
 	if (ret)
 		return ret;
 
-	dev_dbg(dev, "parsing endpoint %s, interface %u\n", node->full_name,
-		vep.base.port);
+	dev_dbg(dev, "interface %u\n", vfwn.base.port);
 
-	switch (vep.base.port) {
+	switch (vfwn.base.port) {
 	case ISP_OF_PHY_PARALLEL:
 		buscfg->interface = ISP_INTERFACE_PARALLEL;
 		buscfg->bus.parallel.data_lane_shift =
-			vep.bus.parallel.data_shift;
+			vfwn.bus.parallel.data_shift;
 		buscfg->bus.parallel.clk_pol =
-			!!(vep.bus.parallel.flags
+			!!(vfwn.bus.parallel.flags
 			   & V4L2_MBUS_PCLK_SAMPLE_FALLING);
 		buscfg->bus.parallel.hs_pol =
-			!!(vep.bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW);
+			!!(vfwn.bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW);
 		buscfg->bus.parallel.vs_pol =
-			!!(vep.bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW);
+			!!(vfwn.bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW);
 		buscfg->bus.parallel.fld_pol =
-			!!(vep.bus.parallel.flags & V4L2_MBUS_FIELD_EVEN_LOW);
+			!!(vfwn.bus.parallel.flags & V4L2_MBUS_FIELD_EVEN_LOW);
 		buscfg->bus.parallel.data_pol =
-			!!(vep.bus.parallel.flags & V4L2_MBUS_DATA_ACTIVE_LOW);
+			!!(vfwn.bus.parallel.flags & V4L2_MBUS_DATA_ACTIVE_LOW);
 		break;
 
 	case ISP_OF_PHY_CSIPHY1:
 	case ISP_OF_PHY_CSIPHY2:
 		/* FIXME: always assume CSI-2 for now. */
-		switch (vep.base.port) {
+		switch (vfwn.base.port) {
 		case ISP_OF_PHY_CSIPHY1:
 			buscfg->interface = ISP_INTERFACE_CSI2C_PHY1;
 			break;
@@ -2068,18 +2068,18 @@ static int isp_of_parse_node(struct device *dev, struct device_node *node,
 			buscfg->interface = ISP_INTERFACE_CSI2A_PHY2;
 			break;
 		}
-		buscfg->bus.csi2.lanecfg.clk.pos = vep.bus.mipi_csi2.clock_lane;
+		buscfg->bus.csi2.lanecfg.clk.pos = vfwn.bus.mipi_csi2.clock_lane;
 		buscfg->bus.csi2.lanecfg.clk.pol =
-			vep.bus.mipi_csi2.lane_polarities[0];
+			vfwn.bus.mipi_csi2.lane_polarities[0];
 		dev_dbg(dev, "clock lane polarity %u, pos %u\n",
 			buscfg->bus.csi2.lanecfg.clk.pol,
 			buscfg->bus.csi2.lanecfg.clk.pos);
 
 		for (i = 0; i < ISP_CSIPHY2_NUM_DATA_LANES; i++) {
 			buscfg->bus.csi2.lanecfg.data[i].pos =
-				vep.bus.mipi_csi2.data_lanes[i];
+				vfwn.bus.mipi_csi2.data_lanes[i];
 			buscfg->bus.csi2.lanecfg.data[i].pol =
-				vep.bus.mipi_csi2.lane_polarities[i + 1];
+				vfwn.bus.mipi_csi2.lane_polarities[i + 1];
 			dev_dbg(dev, "data lane %u polarity %u, pos %u\n", i,
 				buscfg->bus.csi2.lanecfg.data[i].pol,
 				buscfg->bus.csi2.lanecfg.data[i].pos);
@@ -2094,18 +2094,17 @@ static int isp_of_parse_node(struct device *dev, struct device_node *node,
 		break;
 
 	default:
-		dev_warn(dev, "%s: invalid interface %u\n", node->full_name,
-			 vep.base.port);
+		dev_warn(dev, "invalid interface %u\n", vfwn.base.port);
 		break;
 	}
 
 	return 0;
 }
 
-static int isp_of_parse_nodes(struct device *dev,
-			      struct v4l2_async_notifier *notifier)
+static int isp_fwnodes_parse(struct device *dev,
+			     struct v4l2_async_notifier *notifier)
 {
-	struct device_node *node = NULL;
+	struct fwnode_handle *fwn = NULL;
 
 	notifier->subdevs = devm_kcalloc(
 		dev, ISP_MAX_SUBDEVS, sizeof(*notifier->subdevs), GFP_KERNEL);
@@ -2113,7 +2112,8 @@ static int isp_of_parse_nodes(struct device *dev,
 		return -ENOMEM;
 
 	while (notifier->num_subdevs < ISP_MAX_SUBDEVS &&
-	       (node = of_graph_get_next_endpoint(dev->of_node, node))) {
+	       (fwn = fwnode_graph_get_next_endpoint(dev_fwnode(dev),
+						     fwn))) {
 		struct isp_async_subdev *isd;
 
 		isd = devm_kzalloc(dev, sizeof(*isd), GFP_KERNEL);
@@ -2122,23 +2122,24 @@ static int isp_of_parse_nodes(struct device *dev,
 
 		notifier->subdevs[notifier->num_subdevs] = &isd->asd;
 
-		if (isp_of_parse_node(dev, node, isd))
+		if (isp_fwnode_parse(dev, fwn, isd))
 			goto error;
 
-		isd->asd.match.of.node = of_graph_get_remote_port_parent(node);
-		if (!isd->asd.match.of.node) {
+		isd->asd.match.fwnode.fwn =
+			fwnode_graph_get_remote_port_parent(fwn);
+		if (!isd->asd.match.fwnode.fwn) {
 			dev_warn(dev, "bad remote port parent\n");
 			goto error;
 		}
 
-		isd->asd.match_type = V4L2_ASYNC_MATCH_OF;
+		isd->asd.match_type = V4L2_ASYNC_MATCH_FWNODE;
 		notifier->num_subdevs++;
 	}
 
 	return notifier->num_subdevs;
 
 error:
-	of_node_put(node);
+	fwnode_handle_put(fwn);
 	return -EINVAL;
 }
 
@@ -2209,8 +2210,8 @@ static int isp_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	ret = of_property_read_u32(pdev->dev.of_node, "ti,phy-type",
-				   &isp->phy_type);
+	ret = fwnode_property_read_u32(dev_fwnode(&pdev->dev),
+				       "ti,phy-type", &isp->phy_type);
 	if (ret)
 		return ret;
 
@@ -2219,12 +2220,12 @@ static int isp_probe(struct platform_device *pdev)
 	if (IS_ERR(isp->syscon))
 		return PTR_ERR(isp->syscon);
 
-	ret = of_property_read_u32_index(pdev->dev.of_node, "syscon", 1,
-					 &isp->syscon_offset);
+	ret = of_property_read_u32_index(pdev->dev.of_node,
+					 "syscon", 1, &isp->syscon_offset);
 	if (ret)
 		return ret;
 
-	ret = isp_of_parse_nodes(&pdev->dev, &isp->notifier);
+	ret = isp_fwnodes_parse(&pdev->dev, &isp->notifier);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/media/platform/pxa_camera.c b/drivers/media/platform/pxa_camera.c
index 929006f..1ad4cf9 100644
--- a/drivers/media/platform/pxa_camera.c
+++ b/drivers/media/platform/pxa_camera.c
@@ -25,6 +25,7 @@
 #include <linux/mm.h>
 #include <linux/moduleparam.h>
 #include <linux/of.h>
+#include <linux/of_graph.h>
 #include <linux/time.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
@@ -39,7 +40,7 @@
 #include <media/v4l2-common.h>
 #include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include <media/videobuf2-dma-sg.h>
 
@@ -2236,7 +2237,7 @@ static int pxa_camera_pdata_from_dt(struct device *dev,
 {
 	u32 mclk_rate;
 	struct device_node *remote, *np = dev->of_node;
-	struct v4l2_of_endpoint ep;
+	struct v4l2_fwnode_endpoint ep;
 	int err = of_property_read_u32(np, "clock-frequency",
 				       &mclk_rate);
 	if (!err) {
@@ -2250,7 +2251,7 @@ static int pxa_camera_pdata_from_dt(struct device *dev,
 		return -EINVAL;
 	}
 
-	err = v4l2_of_parse_endpoint(np, &ep);
+	err = v4l2_fwnode_endpoint_parse(of_fwnode_handle(np), &ep);
 	if (err) {
 		dev_err(dev, "could not parse endpoint\n");
 		goto out;
diff --git a/drivers/media/platform/rcar-vin/Kconfig b/drivers/media/platform/rcar-vin/Kconfig
index 111d2a1..af4c98b 100644
--- a/drivers/media/platform/rcar-vin/Kconfig
+++ b/drivers/media/platform/rcar-vin/Kconfig
@@ -3,6 +3,7 @@ config VIDEO_RCAR_VIN
 	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && OF && HAS_DMA && MEDIA_CONTROLLER
 	depends on ARCH_RENESAS || COMPILE_TEST
 	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
 	---help---
 	  Support for Renesas R-Car Video Input (VIN) driver.
 	  Supports R-Car Gen2 SoCs.
diff --git a/drivers/media/platform/rcar-vin/rcar-core.c b/drivers/media/platform/rcar-vin/rcar-core.c
index 098a0b1..72903fc 100644
--- a/drivers/media/platform/rcar-vin/rcar-core.c
+++ b/drivers/media/platform/rcar-vin/rcar-core.c
@@ -21,7 +21,7 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include "rcar-vin.h"
 
@@ -118,10 +118,10 @@ static int rvin_digitial_parse_v4l2(struct rvin_dev *vin,
 				    struct device_node *ep,
 				    struct v4l2_mbus_config *mbus_cfg)
 {
-	struct v4l2_of_endpoint v4l2_ep;
+	struct v4l2_fwnode_endpoint v4l2_ep;
 	int ret;
 
-	ret = v4l2_of_parse_endpoint(ep, &v4l2_ep);
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &v4l2_ep);
 	if (ret) {
 		vin_err(vin, "Could not parse v4l2 endpoint\n");
 		return -EINVAL;
diff --git a/drivers/media/platform/soc_camera/Kconfig b/drivers/media/platform/soc_camera/Kconfig
index 2728276..7009e5b 100644
--- a/drivers/media/platform/soc_camera/Kconfig
+++ b/drivers/media/platform/soc_camera/Kconfig
@@ -32,6 +32,7 @@ config VIDEO_ATMEL_ISI
 	depends on ARCH_AT91 || COMPILE_TEST
 	depends on HAS_DMA
 	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
 	---help---
 	  This module makes the ATMEL Image Sensor Interface available
 	  as a v4l2 device.
diff --git a/drivers/media/platform/soc_camera/atmel-isi.c b/drivers/media/platform/soc_camera/atmel-isi.c
index 46de657..f9f2ad6 100644
--- a/drivers/media/platform/soc_camera/atmel-isi.c
+++ b/drivers/media/platform/soc_camera/atmel-isi.c
@@ -19,13 +19,14 @@
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of_graph.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
 
 #include <media/soc_camera.h>
 #include <media/drv-intf/soc_mediabus.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/videobuf2-dma-contig.h>
 
 #include "atmel-isi.h"
@@ -974,7 +975,7 @@ static int atmel_isi_parse_dt(struct atmel_isi *isi,
 			struct platform_device *pdev)
 {
 	struct device_node *np= pdev->dev.of_node;
-	struct v4l2_of_endpoint ep;
+	struct v4l2_fwnode_endpoint ep;
 	int err;
 
 	/* Default settings for ISI */
@@ -987,7 +988,7 @@ static int atmel_isi_parse_dt(struct atmel_isi *isi,
 		return -EINVAL;
 	}
 
-	err = v4l2_of_parse_endpoint(np, &ep);
+	err = v4l2_fwnode_endpoint_parse(of_fwnode_handle(np), &ep);
 	of_node_put(np);
 	if (err) {
 		dev_err(&pdev->dev, "Could not parse the endpoint\n");
diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c
index 3c9421f..0997d074 100644
--- a/drivers/media/platform/soc_camera/soc_camera.c
+++ b/drivers/media/platform/soc_camera/soc_camera.c
@@ -23,6 +23,7 @@
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
+#include <linux/of_graph.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/regulator/consumer.h>
@@ -36,7 +37,7 @@
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
 #include <media/v4l2-dev.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/videobuf2-v4l2.h>
 
 /* Default to VGA resolution */
diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c
index 7a058b6..f72f541 100644
--- a/drivers/media/platform/ti-vpe/cal.c
+++ b/drivers/media/platform/ti-vpe/cal.c
@@ -21,7 +21,7 @@
 #include <linux/of_device.h>
 #include <linux/of_graph.h>
 
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 #include <media/v4l2-async.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ctrls.h>
@@ -270,7 +270,7 @@ struct cal_ctx {
 	struct video_device	vdev;
 	struct v4l2_async_notifier notifier;
 	struct v4l2_subdev	*sensor;
-	struct v4l2_of_endpoint	endpoint;
+	struct v4l2_fwnode_endpoint	endpoint;
 
 	struct v4l2_async_subdev asd;
 	struct v4l2_async_subdev *asd_list[1];
@@ -608,7 +608,8 @@ static void csi2_lane_config(struct cal_ctx *ctx)
 	u32 val = reg_read(ctx->dev, CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port));
 	u32 lane_mask = CAL_CSI2_COMPLEXIO_CFG_CLOCK_POSITION_MASK;
 	u32 polarity_mask = CAL_CSI2_COMPLEXIO_CFG_CLOCK_POL_MASK;
-	struct v4l2_of_bus_mipi_csi2 *mipi_csi2 = &ctx->endpoint.bus.mipi_csi2;
+	struct v4l2_fwnode_bus_mipi_csi2 *mipi_csi2 =
+		&ctx->endpoint.bus.mipi_csi2;
 	int lane;
 
 	set_field(&val, mipi_csi2->clock_lane + 1, lane_mask);
@@ -1643,7 +1644,7 @@ static int of_cal_create_instance(struct cal_ctx *ctx, int inst)
 	struct platform_device *pdev = ctx->dev->pdev;
 	struct device_node *ep_node, *port, *remote_ep,
 			*sensor_node, *parent;
-	struct v4l2_of_endpoint *endpoint;
+	struct v4l2_fwnode_endpoint *endpoint;
 	struct v4l2_async_subdev *asd;
 	u32 regval = 0;
 	int ret, index, found_port = 0, lane;
@@ -1706,7 +1707,7 @@ static int of_cal_create_instance(struct cal_ctx *ctx, int inst)
 		ctx_dbg(3, ctx, "can't get remote-endpoint\n");
 		goto cleanup_exit;
 	}
-	v4l2_of_parse_endpoint(remote_ep, endpoint);
+	v4l2_fwnode_endpoint_parse(of_fwnode_handle(remote_ep), endpoint);
 
 	if (endpoint->bus_type != V4L2_MBUS_CSI2) {
 		ctx_err(ctx, "Port:%d sub-device %s is not a CSI2 device\n",
diff --git a/drivers/media/platform/xilinx/Kconfig b/drivers/media/platform/xilinx/Kconfig
index 84bae79..a5d21b7 100644
--- a/drivers/media/platform/xilinx/Kconfig
+++ b/drivers/media/platform/xilinx/Kconfig
@@ -2,6 +2,7 @@ config VIDEO_XILINX
 	tristate "Xilinx Video IP (EXPERIMENTAL)"
 	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && OF && HAS_DMA
 	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_FWNODE
 	---help---
 	  Driver for Xilinx Video IP Pipelines
 
diff --git a/drivers/media/platform/xilinx/xilinx-vipp.c b/drivers/media/platform/xilinx/xilinx-vipp.c
index feb3b2f..6a2721b 100644
--- a/drivers/media/platform/xilinx/xilinx-vipp.c
+++ b/drivers/media/platform/xilinx/xilinx-vipp.c
@@ -22,7 +22,7 @@
 #include <media/v4l2-async.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-device.h>
-#include <media/v4l2-of.h>
+#include <media/v4l2-fwnode.h>
 
 #include "xilinx-dma.h"
 #include "xilinx-vipp.h"
@@ -74,7 +74,7 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
 	struct media_pad *local_pad;
 	struct media_pad *remote_pad;
 	struct xvip_graph_entity *ent;
-	struct v4l2_of_link link;
+	struct v4l2_fwnode_link link;
 	struct device_node *ep = NULL;
 	struct device_node *next;
 	int ret = 0;
@@ -92,7 +92,7 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
 
 		dev_dbg(xdev->dev, "processing endpoint %s\n", ep->full_name);
 
-		ret = v4l2_of_parse_link(ep, &link);
+		ret = v4l2_fwnode_parse_link(of_fwnode_handle(ep), &link);
 		if (ret < 0) {
 			dev_err(xdev->dev, "failed to parse link for %s\n",
 				ep->full_name);
@@ -103,9 +103,10 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
 		 * the link.
 		 */
 		if (link.local_port >= local->num_pads) {
-			dev_err(xdev->dev, "invalid port number %u on %s\n",
-				link.local_port, link.local_node->full_name);
-			v4l2_of_put_link(&link);
+			dev_err(xdev->dev, "invalid port number %u for %s\n",
+				link.local_port,
+				to_of_node(link.local_node)->full_name);
+			v4l2_fwnode_put_link(&link);
 			ret = -EINVAL;
 			break;
 		}
@@ -114,25 +115,28 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
 
 		if (local_pad->flags & MEDIA_PAD_FL_SINK) {
 			dev_dbg(xdev->dev, "skipping sink port %s:%u\n",
-				link.local_node->full_name, link.local_port);
-			v4l2_of_put_link(&link);
+				to_of_node(link.local_node)->full_name,
+				link.local_port);
+			v4l2_fwnode_put_link(&link);
 			continue;
 		}
 
 		/* Skip DMA engines, they will be processed separately. */
-		if (link.remote_node == xdev->dev->of_node) {
+		if (link.remote_node == of_fwnode_handle(xdev->dev->of_node)) {
 			dev_dbg(xdev->dev, "skipping DMA port %s:%u\n",
-				link.local_node->full_name, link.local_port);
-			v4l2_of_put_link(&link);
+				to_of_node(link.local_node)->full_name,
+				link.local_port);
+			v4l2_fwnode_put_link(&link);
 			continue;
 		}
 
 		/* Find the remote entity. */
-		ent = xvip_graph_find_entity(xdev, link.remote_node);
+		ent = xvip_graph_find_entity(xdev,
+					     to_of_node(link.remote_node));
 		if (ent == NULL) {
 			dev_err(xdev->dev, "no entity found for %s\n",
-				link.remote_node->full_name);
-			v4l2_of_put_link(&link);
+				to_of_node(link.remote_node)->full_name);
+			v4l2_fwnode_put_link(&link);
 			ret = -ENODEV;
 			break;
 		}
@@ -141,15 +145,16 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev,
 
 		if (link.remote_port >= remote->num_pads) {
 			dev_err(xdev->dev, "invalid port number %u on %s\n",
-				link.remote_port, link.remote_node->full_name);
-			v4l2_of_put_link(&link);
+				link.remote_port,
+				to_of_node(link.remote_node)->full_name);
+			v4l2_fwnode_put_link(&link);
 			ret = -EINVAL;
 			break;
 		}
 
 		remote_pad = &remote->pads[link.remote_port];
 
-		v4l2_of_put_link(&link);
+		v4l2_fwnode_put_link(&link);
 
 		/* Create the media link. */
 		dev_dbg(xdev->dev, "creating %s:%u -> %s:%u link\n",
@@ -194,7 +199,7 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
 	struct media_pad *source_pad;
 	struct media_pad *sink_pad;
 	struct xvip_graph_entity *ent;
-	struct v4l2_of_link link;
+	struct v4l2_fwnode_link link;
 	struct device_node *ep = NULL;
 	struct device_node *next;
 	struct xvip_dma *dma;
@@ -213,7 +218,7 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
 
 		dev_dbg(xdev->dev, "processing endpoint %s\n", ep->full_name);
 
-		ret = v4l2_of_parse_link(ep, &link);
+		ret = v4l2_fwnode_parse_link(of_fwnode_handle(ep), &link);
 		if (ret < 0) {
 			dev_err(xdev->dev, "failed to parse link for %s\n",
 				ep->full_name);
@@ -225,7 +230,7 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
 		if (dma == NULL) {
 			dev_err(xdev->dev, "no DMA engine found for port %u\n",
 				link.local_port);
-			v4l2_of_put_link(&link);
+			v4l2_fwnode_put_link(&link);
 			ret = -EINVAL;
 			break;
 		}
@@ -234,19 +239,21 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
 			dma->video.name);
 
 		/* Find the remote entity. */
-		ent = xvip_graph_find_entity(xdev, link.remote_node);
+		ent = xvip_graph_find_entity(xdev,
+					     to_of_node(link.remote_node));
 		if (ent == NULL) {
 			dev_err(xdev->dev, "no entity found for %s\n",
-				link.remote_node->full_name);
-			v4l2_of_put_link(&link);
+				to_of_node(link.remote_node)->full_name);
+			v4l2_fwnode_put_link(&link);
 			ret = -ENODEV;
 			break;
 		}
 
 		if (link.remote_port >= ent->entity->num_pads) {
 			dev_err(xdev->dev, "invalid port number %u on %s\n",
-				link.remote_port, link.remote_node->full_name);
-			v4l2_of_put_link(&link);
+				link.remote_port,
+				to_of_node(link.remote_node)->full_name);
+			v4l2_fwnode_put_link(&link);
 			ret = -EINVAL;
 			break;
 		}
@@ -263,7 +270,7 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev)
 			sink_pad = &dma->pad;
 		}
 
-		v4l2_of_put_link(&link);
+		v4l2_fwnode_put_link(&link);
 
 		/* Create the media link. */
 		dev_dbg(xdev->dev, "creating %s:%u -> %s:%u link\n",
diff --git a/include/media/v4l2-fwnode.h b/include/media/v4l2-fwnode.h
index a675d8a..bc9cf51 100644
--- a/include/media/v4l2-fwnode.h
+++ b/include/media/v4l2-fwnode.h
@@ -17,10 +17,10 @@
 #ifndef _V4L2_FWNODE_H
 #define _V4L2_FWNODE_H
 
+#include <linux/errno.h>
+#include <linux/fwnode.h>
 #include <linux/list.h>
 #include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/of_graph.h>
 
 #include <media/v4l2-mediabus.h>
 
-- 
2.7.4

Re: [PATCH v2 5/8] v4l: Switch from V4L2 OF not V4L2 fwnode API

[Laurent Pinchart]

Hi Sakari,

Thank you for the patch.

On Thursday 06 Apr 2017 16:12:07 Sakari Ailus wrote:
> Switch users of the v4l2_of_ APIs to the more generic v4l2_fwnode_ APIs.
> 
> Existing OF matching continues to be supported. omap3isp and smiapp
> drivers are converted to fwnode matching as well.
> 
> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> Acked-by: Benoit Parrot <bparrot@ti.com> # i2c/ov2569.c,
> am437x/am437x-vpfe.c and ti-vpe/cal.c ---
>  drivers/media/i2c/Kconfig                      |  9 ++++
>  drivers/media/i2c/adv7604.c                    |  7 +--
>  drivers/media/i2c/mt9v032.c                    |  7 +--
>  drivers/media/i2c/ov2659.c                     |  8 +--
>  drivers/media/i2c/s5c73m3/s5c73m3-core.c       |  7 +--
>  drivers/media/i2c/s5k5baf.c                    |  6 +--
>  drivers/media/i2c/smiapp/Kconfig               |  1 +
>  drivers/media/i2c/smiapp/smiapp-core.c         | 29 ++++++-----
>  drivers/media/i2c/tc358743.c                   | 11 ++--
>  drivers/media/i2c/tvp514x.c                    |  6 +--
>  drivers/media/i2c/tvp5150.c                    |  7 +--
>  drivers/media/i2c/tvp7002.c                    |  6 +--
>  drivers/media/platform/Kconfig                 |  3 ++
>  drivers/media/platform/am437x/Kconfig          |  1 +
>  drivers/media/platform/am437x/am437x-vpfe.c    |  8 +--
>  drivers/media/platform/atmel/Kconfig           |  1 +
>  drivers/media/platform/atmel/atmel-isc.c       |  8 +--
>  drivers/media/platform/exynos4-is/Kconfig      |  2 +
>  drivers/media/platform/exynos4-is/media-dev.c  |  6 +--
>  drivers/media/platform/exynos4-is/mipi-csis.c  |  6 +--
>  drivers/media/platform/omap3isp/isp.c          | 71 +++++++++++-----------
>  drivers/media/platform/pxa_camera.c            |  7 +--
>  drivers/media/platform/rcar-vin/Kconfig        |  1 +
>  drivers/media/platform/rcar-vin/rcar-core.c    |  6 +--
>  drivers/media/platform/soc_camera/Kconfig      |  1 +
>  drivers/media/platform/soc_camera/atmel-isi.c  |  7 +--
>  drivers/media/platform/soc_camera/soc_camera.c |  3 +-
>  drivers/media/platform/ti-vpe/cal.c            | 11 ++--
>  drivers/media/platform/xilinx/Kconfig          |  1 +
>  drivers/media/platform/xilinx/xilinx-vipp.c    | 59 +++++++++++----------
>  include/media/v4l2-fwnode.h                    |  4 +-
>  31 files changed, 176 insertions(+), 134 deletions(-)
> 
> diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
> index cee1dae..6b2423a 100644
> --- a/drivers/media/i2c/Kconfig
> +++ b/drivers/media/i2c/Kconfig
> @@ -210,6 +210,7 @@ config VIDEO_ADV7604
>  	depends on GPIOLIB || COMPILE_TEST
>  	select HDMI
>  	select MEDIA_CEC_EDID
> +	select V4L2_FWNODE

What happens when building the driver on a platform that includes neither OF 
nor ACPI support ?

>  	---help---
>  	  Support for the Analog Devices ADV7604 video decoder.
> 

[snip]

How have you checked that you haven't missed any entry in the Kconfig files ?

[snip]

> diff --git a/drivers/media/platform/omap3isp/isp.c
> b/drivers/media/platform/omap3isp/isp.c index 084ecf4a..95850b9 100644
> --- a/drivers/media/platform/omap3isp/isp.c
> +++ b/drivers/media/platform/omap3isp/isp.c

[snip]

> @@ -2024,43 +2025,42 @@ enum isp_of_phy {
>  	ISP_OF_PHY_CSIPHY2,
>  };
> 
> -static int isp_of_parse_node(struct device *dev, struct device_node *node,
> -			     struct isp_async_subdev *isd)
> +static int isp_fwnode_parse(struct device *dev, struct fwnode_handle *fwn,
> +			    struct isp_async_subdev *isd)
>  {
>  	struct isp_bus_cfg *buscfg = &isd->bus;
> -	struct v4l2_of_endpoint vep;
> +	struct v4l2_fwnode_endpoint vfwn;

vfwn is confusing to me, I think the variable name should show that it refers 
to an endpoint.

>  	unsigned int i;
>  	int ret;
> 
> -	ret = v4l2_of_parse_endpoint(node, &vep);
> +	ret = v4l2_fwnode_endpoint_parse(fwn, &vfwn);
>  	if (ret)
>  		return ret;
> 
> -	dev_dbg(dev, "parsing endpoint %s, interface %u\n", node->full_name,
> -		vep.base.port);
> +	dev_dbg(dev, "interface %u\n", vfwn.base.port);

Is there no way to keep the node name in the error message ?


[snip]

> @@ -2094,18 +2094,17 @@ static int isp_of_parse_node(struct device *dev,
> struct device_node *node, break;
> 
>  	default:
> -		dev_warn(dev, "%s: invalid interface %u\n", node->full_name,
> -			 vep.base.port);
> +		dev_warn(dev, "invalid interface %u\n", vfwn.base.port);

Ditto.

>  		break;
>  	}
> 
>  	return 0;
>  }
> 
> -static int isp_of_parse_nodes(struct device *dev,
> -			      struct v4l2_async_notifier *notifier)
> +static int isp_fwnodes_parse(struct device *dev,
> +			     struct v4l2_async_notifier *notifier)
>  {
> -	struct device_node *node = NULL;
> +	struct fwnode_handle *fwn = NULL;

As explained in the review of another patch from the same series, I wouldn't 
rename the variable.

>  	notifier->subdevs = devm_kcalloc(
>  		dev, ISP_MAX_SUBDEVS, sizeof(*notifier->subdevs), GFP_KERNEL);

[snip]

> @@ -2219,12 +2220,12 @@ static int isp_probe(struct platform_device *pdev)
>  	if (IS_ERR(isp->syscon))
>  		return PTR_ERR(isp->syscon);
> 
> -	ret = of_property_read_u32_index(pdev->dev.of_node, "syscon", 1,
> -					 &isp->syscon_offset);
> +	ret = of_property_read_u32_index(pdev->dev.of_node,
> +					 "syscon", 1, &isp->syscon_offset);

This change doesn't seem to be needed.

>  	if (ret)
>  		return ret;
> 
> -	ret = isp_of_parse_nodes(&pdev->dev, &isp->notifier);
> +	ret = isp_fwnodes_parse(&pdev->dev, &isp->notifier);
>  	if (ret < 0)
>  		return ret;
> 

[snip]

> diff --git a/drivers/media/platform/xilinx/xilinx-vipp.c
> b/drivers/media/platform/xilinx/xilinx-vipp.c index feb3b2f..6a2721b 100644
> --- a/drivers/media/platform/xilinx/xilinx-vipp.c
> +++ b/drivers/media/platform/xilinx/xilinx-vipp.c

[snip]

> @@ -103,9 +103,10 @@ static int xvip_graph_build_one(struct
> xvip_composite_device *xdev, * the link.
>  		 */
>  		if (link.local_port >= local->num_pads) {
> -			dev_err(xdev->dev, "invalid port number %u on %s\n",
> -				link.local_port, link.local_node->full_name);
> -			v4l2_of_put_link(&link);
> +			dev_err(xdev->dev, "invalid port number %u for %s\n",
> +				link.local_port,
> +				to_of_node(link.local_node)->full_name);

This makes me believe that we're missing a fwnode_full_name() function.

> +			v4l2_fwnode_put_link(&link);
>  			ret = -EINVAL;
>  			break;
>  		}

[snip]

> diff --git a/include/media/v4l2-fwnode.h b/include/media/v4l2-fwnode.h
> index a675d8a..bc9cf51 100644
> --- a/include/media/v4l2-fwnode.h
> +++ b/include/media/v4l2-fwnode.h
> @@ -17,10 +17,10 @@
>  #ifndef _V4L2_FWNODE_H
>  #define _V4L2_FWNODE_H
> 
> +#include <linux/errno.h>
> +#include <linux/fwnode.h>
>  #include <linux/list.h>
>  #include <linux/types.h>
> -#include <linux/errno.h>
> -#include <linux/of_graph.h>
> 
>  #include <media/v4l2-mediabus.h>

This probably belongs to another patch (at least the alphabetical sorting 
does).

-- 
Regards,

Laurent Pinchart

Re: [PATCH v2 5/8] v4l: Switch from V4L2 OF not V4L2 fwnode API

[Sakari Ailus]

Hi Laurent,

On Fri, Apr 07, 2017 at 01:32:54PM +0300, Laurent Pinchart wrote:
> Hi Sakari,
> 
> Thank you for the patch.
> 
> On Thursday 06 Apr 2017 16:12:07 Sakari Ailus wrote:
> > Switch users of the v4l2_of_ APIs to the more generic v4l2_fwnode_ APIs.
> > 
> > Existing OF matching continues to be supported. omap3isp and smiapp
> > drivers are converted to fwnode matching as well.
> > 
> > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> > Acked-by: Benoit Parrot <bparrot@ti.com> # i2c/ov2569.c,
> > am437x/am437x-vpfe.c and ti-vpe/cal.c ---
> >  drivers/media/i2c/Kconfig                      |  9 ++++
> >  drivers/media/i2c/adv7604.c                    |  7 +--
> >  drivers/media/i2c/mt9v032.c                    |  7 +--
> >  drivers/media/i2c/ov2659.c                     |  8 +--
> >  drivers/media/i2c/s5c73m3/s5c73m3-core.c       |  7 +--
> >  drivers/media/i2c/s5k5baf.c                    |  6 +--
> >  drivers/media/i2c/smiapp/Kconfig               |  1 +
> >  drivers/media/i2c/smiapp/smiapp-core.c         | 29 ++++++-----
> >  drivers/media/i2c/tc358743.c                   | 11 ++--
> >  drivers/media/i2c/tvp514x.c                    |  6 +--
> >  drivers/media/i2c/tvp5150.c                    |  7 +--
> >  drivers/media/i2c/tvp7002.c                    |  6 +--
> >  drivers/media/platform/Kconfig                 |  3 ++
> >  drivers/media/platform/am437x/Kconfig          |  1 +
> >  drivers/media/platform/am437x/am437x-vpfe.c    |  8 +--
> >  drivers/media/platform/atmel/Kconfig           |  1 +
> >  drivers/media/platform/atmel/atmel-isc.c       |  8 +--
> >  drivers/media/platform/exynos4-is/Kconfig      |  2 +
> >  drivers/media/platform/exynos4-is/media-dev.c  |  6 +--
> >  drivers/media/platform/exynos4-is/mipi-csis.c  |  6 +--
> >  drivers/media/platform/omap3isp/isp.c          | 71 +++++++++++-----------
> >  drivers/media/platform/pxa_camera.c            |  7 +--
> >  drivers/media/platform/rcar-vin/Kconfig        |  1 +
> >  drivers/media/platform/rcar-vin/rcar-core.c    |  6 +--
> >  drivers/media/platform/soc_camera/Kconfig      |  1 +
> >  drivers/media/platform/soc_camera/atmel-isi.c  |  7 +--
> >  drivers/media/platform/soc_camera/soc_camera.c |  3 +-
> >  drivers/media/platform/ti-vpe/cal.c            | 11 ++--
> >  drivers/media/platform/xilinx/Kconfig          |  1 +
> >  drivers/media/platform/xilinx/xilinx-vipp.c    | 59 +++++++++++----------
> >  include/media/v4l2-fwnode.h                    |  4 +-
> >  31 files changed, 176 insertions(+), 134 deletions(-)
> > 
> > diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
> > index cee1dae..6b2423a 100644
> > --- a/drivers/media/i2c/Kconfig
> > +++ b/drivers/media/i2c/Kconfig
> > @@ -210,6 +210,7 @@ config VIDEO_ADV7604
> >  	depends on GPIOLIB || COMPILE_TEST
> >  	select HDMI
> >  	select MEDIA_CEC_EDID
> > +	select V4L2_FWNODE
> 
> What happens when building the driver on a platform that includes neither OF 
> nor ACPI support ?

You need either in practice, also for the V4L2 fwnode to be meaningful.

Do you have something in particular in mind?

> 
> >  	---help---
> >  	  Support for the Analog Devices ADV7604 video decoder.
> > 
> 
> [snip]
> 
> How have you checked that you haven't missed any entry in the Kconfig files ?

I made one Kconfig change per driver. :-)

> 
> [snip]
> 
> > diff --git a/drivers/media/platform/omap3isp/isp.c
> > b/drivers/media/platform/omap3isp/isp.c index 084ecf4a..95850b9 100644
> > --- a/drivers/media/platform/omap3isp/isp.c
> > +++ b/drivers/media/platform/omap3isp/isp.c
> 
> [snip]
> 
> > @@ -2024,43 +2025,42 @@ enum isp_of_phy {
> >  	ISP_OF_PHY_CSIPHY2,
> >  };
> > 
> > -static int isp_of_parse_node(struct device *dev, struct device_node *node,
> > -			     struct isp_async_subdev *isd)
> > +static int isp_fwnode_parse(struct device *dev, struct fwnode_handle *fwn,
> > +			    struct isp_async_subdev *isd)
> >  {
> >  	struct isp_bus_cfg *buscfg = &isd->bus;
> > -	struct v4l2_of_endpoint vep;
> > +	struct v4l2_fwnode_endpoint vfwn;
> 
> vfwn is confusing to me, I think the variable name should show that it refers 
> to an endpoint.

How about adding ep to tell it's an endpoint?

> 
> >  	unsigned int i;
> >  	int ret;
> > 
> > -	ret = v4l2_of_parse_endpoint(node, &vep);
> > +	ret = v4l2_fwnode_endpoint_parse(fwn, &vfwn);
> >  	if (ret)
> >  		return ret;
> > 
> > -	dev_dbg(dev, "parsing endpoint %s, interface %u\n", node->full_name,
> > -		vep.base.port);
> > +	dev_dbg(dev, "interface %u\n", vfwn.base.port);
> 
> Is there no way to keep the node name in the error message ?

There's no generic fwnode means to do something similar currently, possibly
because I understand ACPI doesn't do that. One could check whether the node
is an OF node and then use the full_name field but I wonder if it's worth
it.

> 
> 
> [snip]
> 
> > @@ -2094,18 +2094,17 @@ static int isp_of_parse_node(struct device *dev,
> > struct device_node *node, break;
> > 
> >  	default:
> > -		dev_warn(dev, "%s: invalid interface %u\n", node->full_name,
> > -			 vep.base.port);
> > +		dev_warn(dev, "invalid interface %u\n", vfwn.base.port);
> 
> Ditto.
> 
> >  		break;
> >  	}
> > 
> >  	return 0;
> >  }
> > 
> > -static int isp_of_parse_nodes(struct device *dev,
> > -			      struct v4l2_async_notifier *notifier)
> > +static int isp_fwnodes_parse(struct device *dev,
> > +			     struct v4l2_async_notifier *notifier)
> >  {
> > -	struct device_node *node = NULL;
> > +	struct fwnode_handle *fwn = NULL;
> 
> As explained in the review of another patch from the same series, I wouldn't 
> rename the variable.

Most pointers to struct fwnode_handle are actually called fwnode and some
fw_node. fwn is just shorter. :-)

There are also cases pointers to struct device_node and struct fwnode_handle
are needed in the same function.

> 
> >  	notifier->subdevs = devm_kcalloc(
> >  		dev, ISP_MAX_SUBDEVS, sizeof(*notifier->subdevs), GFP_KERNEL);
> 
> [snip]
> 
> > @@ -2219,12 +2220,12 @@ static int isp_probe(struct platform_device *pdev)
> >  	if (IS_ERR(isp->syscon))
> >  		return PTR_ERR(isp->syscon);
> > 
> > -	ret = of_property_read_u32_index(pdev->dev.of_node, "syscon", 1,
> > -					 &isp->syscon_offset);
> > +	ret = of_property_read_u32_index(pdev->dev.of_node,
> > +					 "syscon", 1, &isp->syscon_offset);
> 
> This change doesn't seem to be needed.

Oh, indeed. Will fix.

> 
> >  	if (ret)
> >  		return ret;
> > 
> > -	ret = isp_of_parse_nodes(&pdev->dev, &isp->notifier);
> > +	ret = isp_fwnodes_parse(&pdev->dev, &isp->notifier);
> >  	if (ret < 0)
> >  		return ret;
> > 
> 
> [snip]
> 
> > diff --git a/drivers/media/platform/xilinx/xilinx-vipp.c
> > b/drivers/media/platform/xilinx/xilinx-vipp.c index feb3b2f..6a2721b 100644
> > --- a/drivers/media/platform/xilinx/xilinx-vipp.c
> > +++ b/drivers/media/platform/xilinx/xilinx-vipp.c
> 
> [snip]
> 
> > @@ -103,9 +103,10 @@ static int xvip_graph_build_one(struct
> > xvip_composite_device *xdev, * the link.
> >  		 */
> >  		if (link.local_port >= local->num_pads) {
> > -			dev_err(xdev->dev, "invalid port number %u on %s\n",
> > -				link.local_port, link.local_node->full_name);
> > -			v4l2_of_put_link(&link);
> > +			dev_err(xdev->dev, "invalid port number %u for %s\n",
> > +				link.local_port,
> > +				to_of_node(link.local_node)->full_name);
> 
> This makes me believe that we're missing a fwnode_full_name() function.

It'd be nice to have that, I agree. What should it do on non-OF nodes?
Return a pointers to an empty string?

> 
> > +			v4l2_fwnode_put_link(&link);
> >  			ret = -EINVAL;
> >  			break;
> >  		}
> 
> [snip]
> 
> > diff --git a/include/media/v4l2-fwnode.h b/include/media/v4l2-fwnode.h
> > index a675d8a..bc9cf51 100644
> > --- a/include/media/v4l2-fwnode.h
> > +++ b/include/media/v4l2-fwnode.h
> > @@ -17,10 +17,10 @@
> >  #ifndef _V4L2_FWNODE_H
> >  #define _V4L2_FWNODE_H
> > 
> > +#include <linux/errno.h>
> > +#include <linux/fwnode.h>
> >  #include <linux/list.h>
> >  #include <linux/types.h>
> > -#include <linux/errno.h>
> > -#include <linux/of_graph.h>
> > 
> >  #include <media/v4l2-mediabus.h>
> 
> This probably belongs to another patch (at least the alphabetical sorting 
> does).

Yes, I'll change it.

-- 
Kind regards,

Sakari Ailus
e-mail: sakari.ailus@iki.fi	XMPP: sailus@retiisi.org.uk

Re: [PATCH v2 5/8] v4l: Switch from V4L2 OF not V4L2 fwnode API

[Laurent Pinchart]

Hi Sakari,

On Friday 07 Apr 2017 13:58:06 Sakari Ailus wrote:
> On Fri, Apr 07, 2017 at 01:32:54PM +0300, Laurent Pinchart wrote:
> > On Thursday 06 Apr 2017 16:12:07 Sakari Ailus wrote:
> > > Switch users of the v4l2_of_ APIs to the more generic v4l2_fwnode_ APIs.
> > > 
> > > Existing OF matching continues to be supported. omap3isp and smiapp
> > > drivers are converted to fwnode matching as well.
> > > 
> > > Signed-off-by: Sakari Ailus <sakari.ailus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
> > > Acked-by: Benoit Parrot <bparrot-l0cyMroinI0@public.gmane.org> # i2c/ov2569.c,
> > > am437x/am437x-vpfe.c and ti-vpe/cal.c ---
> > > 
> > >  drivers/media/i2c/Kconfig                      |  9 ++++
> > >  drivers/media/i2c/adv7604.c                    |  7 +--
> > >  drivers/media/i2c/mt9v032.c                    |  7 +--
> > >  drivers/media/i2c/ov2659.c                     |  8 +--
> > >  drivers/media/i2c/s5c73m3/s5c73m3-core.c       |  7 +--
> > >  drivers/media/i2c/s5k5baf.c                    |  6 +--
> > >  drivers/media/i2c/smiapp/Kconfig               |  1 +
> > >  drivers/media/i2c/smiapp/smiapp-core.c         | 29 ++++++-----
> > >  drivers/media/i2c/tc358743.c                   | 11 ++--
> > >  drivers/media/i2c/tvp514x.c                    |  6 +--
> > >  drivers/media/i2c/tvp5150.c                    |  7 +--
> > >  drivers/media/i2c/tvp7002.c                    |  6 +--
> > >  drivers/media/platform/Kconfig                 |  3 ++
> > >  drivers/media/platform/am437x/Kconfig          |  1 +
> > >  drivers/media/platform/am437x/am437x-vpfe.c    |  8 +--
> > >  drivers/media/platform/atmel/Kconfig           |  1 +
> > >  drivers/media/platform/atmel/atmel-isc.c       |  8 +--
> > >  drivers/media/platform/exynos4-is/Kconfig      |  2 +
> > >  drivers/media/platform/exynos4-is/media-dev.c  |  6 +--
> > >  drivers/media/platform/exynos4-is/mipi-csis.c  |  6 +--
> > >  drivers/media/platform/omap3isp/isp.c          | 71  +++++++++---------
> > >  drivers/media/platform/pxa_camera.c            |  7 +--
> > >  drivers/media/platform/rcar-vin/Kconfig        |  1 +
> > >  drivers/media/platform/rcar-vin/rcar-core.c    |  6 +--
> > >  drivers/media/platform/soc_camera/Kconfig      |  1 +
> > >  drivers/media/platform/soc_camera/atmel-isi.c  |  7 +--
> > >  drivers/media/platform/soc_camera/soc_camera.c |  3 +-
> > >  drivers/media/platform/ti-vpe/cal.c            | 11 ++--
> > >  drivers/media/platform/xilinx/Kconfig          |  1 +
> > >  drivers/media/platform/xilinx/xilinx-vipp.c    | 59  +++++++++---------
> > >  include/media/v4l2-fwnode.h                    |  4 +-
> > >  31 files changed, 176 insertions(+), 134 deletions(-)
> > > 
> > > diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
> > > index cee1dae..6b2423a 100644
> > > --- a/drivers/media/i2c/Kconfig
> > > +++ b/drivers/media/i2c/Kconfig
> > > @@ -210,6 +210,7 @@ config VIDEO_ADV7604
> > > 
> > >  	depends on GPIOLIB || COMPILE_TEST
> > >  	select HDMI
> > >  	select MEDIA_CEC_EDID
> > > 
> > > +	select V4L2_FWNODE
> > 
> > What happens when building the driver on a platform that includes neither
> > OF nor ACPI support ?
> 
> You need either in practice, also for the V4L2 fwnode to be meaningful.
> 
> Do you have something in particular in mind?

I will obviously need either OF or ACPI to use the fwnode API, but some 
drivers still support platform data (either on non-OF embedded systems, or 
when the I2C device is part of a PCI card for instance). Compile-testing is 
also a use case I'm concerned about.

[snip]

> > > diff --git a/drivers/media/platform/omap3isp/isp.c
> > > b/drivers/media/platform/omap3isp/isp.c index 084ecf4a..95850b9 100644
> > > --- a/drivers/media/platform/omap3isp/isp.c
> > > +++ b/drivers/media/platform/omap3isp/isp.c
> > 
> > [snip]
> > 
> > > @@ -2024,43 +2025,42 @@ enum isp_of_phy {
> > >  	ISP_OF_PHY_CSIPHY2,
> > >  };
> > > 
> > > -static int isp_of_parse_node(struct device *dev, struct device_node
> > > *node,
> > > -			     struct isp_async_subdev *isd)
> > > +static int isp_fwnode_parse(struct device *dev, struct fwnode_handle
> > > *fwn,
> > > +			    struct isp_async_subdev *isd)
> > >  {
> > >  	struct isp_bus_cfg *buscfg = &isd->bus;
> > > -	struct v4l2_of_endpoint vep;
> > > +	struct v4l2_fwnode_endpoint vfwn;
> > 
> > vfwn is confusing to me, I think the variable name should show that it
> > refers to an endpoint.
> 
> How about adding ep to tell it's an endpoint?

I'd name is vep or endpoint.

> > >  	unsigned int i;
> > >  	int ret;
> > > 
> > > -	ret = v4l2_of_parse_endpoint(node, &vep);
> > > +	ret = v4l2_fwnode_endpoint_parse(fwn, &vfwn);
> > >  	if (ret)
> > >  		return ret;
> > > 
> > > -	dev_dbg(dev, "parsing endpoint %s, interface %u\n", node->full_name,
> > > -		vep.base.port);
> > > +	dev_dbg(dev, "interface %u\n", vfwn.base.port);
> > 
> > Is there no way to keep the node name in the error message ?
> 
> There's no generic fwnode means to do something similar currently, possibly
> because I understand ACPI doesn't do that. One could check whether the node
> is an OF node and then use the full_name field but I wonder if it's worth
> it.

My ACPI knowledge is limited, but don't ACPI nodes have 4 character names that 
can be combined in a string to create a full path ?

[snip]

> > > -static int isp_of_parse_nodes(struct device *dev,
> > > -			      struct v4l2_async_notifier *notifier)
> > > +static int isp_fwnodes_parse(struct device *dev,
> > > +			     struct v4l2_async_notifier *notifier)
> > >  {
> > > -	struct device_node *node = NULL;
> > > +	struct fwnode_handle *fwn = NULL;
> > 
> > As explained in the review of another patch from the same series, I
> > wouldn't rename the variable.
> 
> Most pointers to struct fwnode_handle are actually called fwnode and some
> fw_node. fwn is just shorter. :-)
> 
> There are also cases pointers to struct device_node and struct fwnode_handle
> are needed in the same function.

When both are needed in the same function it certainly makes sense to use more 
detailed names. My point is that, in a function that exclusively processes 
fw*, I find calling variables fwn or vfwep more confusing that calling them 
node or endpoint.

> > >  	notifier->subdevs = devm_kcalloc(
> > >  	
> > >  		dev, ISP_MAX_SUBDEVS, sizeof(*notifier->subdevs), GFP_KERNEL);

[snip]

> > > diff --git a/drivers/media/platform/xilinx/xilinx-vipp.c
> > > b/drivers/media/platform/xilinx/xilinx-vipp.c index feb3b2f..6a2721b
> > > 100644
> > > --- a/drivers/media/platform/xilinx/xilinx-vipp.c
> > > +++ b/drivers/media/platform/xilinx/xilinx-vipp.c
> > 
> > [snip]
> > 
> > > @@ -103,9 +103,10 @@ static int xvip_graph_build_one(struct
> > > xvip_composite_device *xdev, * the link.
> > >  		 */
> > >  		
> > >  		if (link.local_port >= local->num_pads) {
> > > 
> > > -			dev_err(xdev->dev, "invalid port number %u on %s\n",
> > > -				link.local_port, link.local_node->full_name);
> > > -			v4l2_of_put_link(&link);
> > > +			dev_err(xdev->dev, "invalid port number %u for %s\n",
> > > +				link.local_port,
> > > +				to_of_node(link.local_node)->full_name);
> > 
> > This makes me believe that we're missing a fwnode_full_name() function.
> 
> It'd be nice to have that, I agree. What should it do on non-OF nodes?
> Return a pointers to an empty string?

See above.

> > > +			v4l2_fwnode_put_link(&link);
> > > 
> > >  			ret = -EINVAL;
> > >  			break;
> > >  		
> > >  		}
> > 
> > [snip]

-- 
Regards,

Laurent Pinchart

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Re: [PATCH v2 5/8] v4l: Switch from V4L2 OF not V4L2 fwnode API

[Laurent Pinchart]

Hi Sakari,

On Friday 07 Apr 2017 13:58:06 Sakari Ailus wrote:
> On Fri, Apr 07, 2017 at 01:32:54PM +0300, Laurent Pinchart wrote:
> > On Thursday 06 Apr 2017 16:12:07 Sakari Ailus wrote:
> > > Switch users of the v4l2_of_ APIs to the more generic v4l2_fwnode_ APIs.
> > > 
> > > Existing OF matching continues to be supported. omap3isp and smiapp
> > > drivers are converted to fwnode matching as well.
> > > 
> > > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> > > Acked-by: Benoit Parrot <bparrot@ti.com> # i2c/ov2569.c,
> > > am437x/am437x-vpfe.c and ti-vpe/cal.c ---
> > > 
> > >  drivers/media/i2c/Kconfig                      |  9 ++++
> > >  drivers/media/i2c/adv7604.c                    |  7 +--
> > >  drivers/media/i2c/mt9v032.c                    |  7 +--
> > >  drivers/media/i2c/ov2659.c                     |  8 +--
> > >  drivers/media/i2c/s5c73m3/s5c73m3-core.c       |  7 +--
> > >  drivers/media/i2c/s5k5baf.c                    |  6 +--
> > >  drivers/media/i2c/smiapp/Kconfig               |  1 +
> > >  drivers/media/i2c/smiapp/smiapp-core.c         | 29 ++++++-----
> > >  drivers/media/i2c/tc358743.c                   | 11 ++--
> > >  drivers/media/i2c/tvp514x.c                    |  6 +--
> > >  drivers/media/i2c/tvp5150.c                    |  7 +--
> > >  drivers/media/i2c/tvp7002.c                    |  6 +--
> > >  drivers/media/platform/Kconfig                 |  3 ++
> > >  drivers/media/platform/am437x/Kconfig          |  1 +
> > >  drivers/media/platform/am437x/am437x-vpfe.c    |  8 +--
> > >  drivers/media/platform/atmel/Kconfig           |  1 +
> > >  drivers/media/platform/atmel/atmel-isc.c       |  8 +--
> > >  drivers/media/platform/exynos4-is/Kconfig      |  2 +
> > >  drivers/media/platform/exynos4-is/media-dev.c  |  6 +--
> > >  drivers/media/platform/exynos4-is/mipi-csis.c  |  6 +--
> > >  drivers/media/platform/omap3isp/isp.c          | 71  +++++++++---------
> > >  drivers/media/platform/pxa_camera.c            |  7 +--
> > >  drivers/media/platform/rcar-vin/Kconfig        |  1 +
> > >  drivers/media/platform/rcar-vin/rcar-core.c    |  6 +--
> > >  drivers/media/platform/soc_camera/Kconfig      |  1 +
> > >  drivers/media/platform/soc_camera/atmel-isi.c  |  7 +--
> > >  drivers/media/platform/soc_camera/soc_camera.c |  3 +-
> > >  drivers/media/platform/ti-vpe/cal.c            | 11 ++--
> > >  drivers/media/platform/xilinx/Kconfig          |  1 +
> > >  drivers/media/platform/xilinx/xilinx-vipp.c    | 59  +++++++++---------
> > >  include/media/v4l2-fwnode.h                    |  4 +-
> > >  31 files changed, 176 insertions(+), 134 deletions(-)
> > > 
> > > diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
> > > index cee1dae..6b2423a 100644
> > > --- a/drivers/media/i2c/Kconfig
> > > +++ b/drivers/media/i2c/Kconfig
> > > @@ -210,6 +210,7 @@ config VIDEO_ADV7604
> > > 
> > >  	depends on GPIOLIB || COMPILE_TEST
> > >  	select HDMI
> > >  	select MEDIA_CEC_EDID
> > > 
> > > +	select V4L2_FWNODE
> > 
> > What happens when building the driver on a platform that includes neither
> > OF nor ACPI support ?
> 
> You need either in practice, also for the V4L2 fwnode to be meaningful.
> 
> Do you have something in particular in mind?

I will obviously need either OF or ACPI to use the fwnode API, but some 
drivers still support platform data (either on non-OF embedded systems, or 
when the I2C device is part of a PCI card for instance). Compile-testing is 
also a use case I'm concerned about.

[snip]

> > > diff --git a/drivers/media/platform/omap3isp/isp.c
> > > b/drivers/media/platform/omap3isp/isp.c index 084ecf4a..95850b9 100644
> > > --- a/drivers/media/platform/omap3isp/isp.c
> > > +++ b/drivers/media/platform/omap3isp/isp.c
> > 
> > [snip]
> > 
> > > @@ -2024,43 +2025,42 @@ enum isp_of_phy {
> > >  	ISP_OF_PHY_CSIPHY2,
> > >  };
> > > 
> > > -static int isp_of_parse_node(struct device *dev, struct device_node
> > > *node,
> > > -			     struct isp_async_subdev *isd)
> > > +static int isp_fwnode_parse(struct device *dev, struct fwnode_handle
> > > *fwn,
> > > +			    struct isp_async_subdev *isd)
> > >  {
> > >  	struct isp_bus_cfg *buscfg = &isd->bus;
> > > -	struct v4l2_of_endpoint vep;
> > > +	struct v4l2_fwnode_endpoint vfwn;
> > 
> > vfwn is confusing to me, I think the variable name should show that it
> > refers to an endpoint.
> 
> How about adding ep to tell it's an endpoint?

I'd name is vep or endpoint.

> > >  	unsigned int i;
> > >  	int ret;
> > > 
> > > -	ret = v4l2_of_parse_endpoint(node, &vep);
> > > +	ret = v4l2_fwnode_endpoint_parse(fwn, &vfwn);
> > >  	if (ret)
> > >  		return ret;
> > > 
> > > -	dev_dbg(dev, "parsing endpoint %s, interface %u\n", node->full_name,
> > > -		vep.base.port);
> > > +	dev_dbg(dev, "interface %u\n", vfwn.base.port);
> > 
> > Is there no way to keep the node name in the error message ?
> 
> There's no generic fwnode means to do something similar currently, possibly
> because I understand ACPI doesn't do that. One could check whether the node
> is an OF node and then use the full_name field but I wonder if it's worth
> it.

My ACPI knowledge is limited, but don't ACPI nodes have 4 character names that 
can be combined in a string to create a full path ?

[snip]

> > > -static int isp_of_parse_nodes(struct device *dev,
> > > -			      struct v4l2_async_notifier *notifier)
> > > +static int isp_fwnodes_parse(struct device *dev,
> > > +			     struct v4l2_async_notifier *notifier)
> > >  {
> > > -	struct device_node *node = NULL;
> > > +	struct fwnode_handle *fwn = NULL;
> > 
> > As explained in the review of another patch from the same series, I
> > wouldn't rename the variable.
> 
> Most pointers to struct fwnode_handle are actually called fwnode and some
> fw_node. fwn is just shorter. :-)
> 
> There are also cases pointers to struct device_node and struct fwnode_handle
> are needed in the same function.

When both are needed in the same function it certainly makes sense to use more 
detailed names. My point is that, in a function that exclusively processes 
fw*, I find calling variables fwn or vfwep more confusing that calling them 
node or endpoint.

> > >  	notifier->subdevs = devm_kcalloc(
> > >  	
> > >  		dev, ISP_MAX_SUBDEVS, sizeof(*notifier->subdevs), GFP_KERNEL);

[snip]

> > > diff --git a/drivers/media/platform/xilinx/xilinx-vipp.c
> > > b/drivers/media/platform/xilinx/xilinx-vipp.c index feb3b2f..6a2721b
> > > 100644
> > > --- a/drivers/media/platform/xilinx/xilinx-vipp.c
> > > +++ b/drivers/media/platform/xilinx/xilinx-vipp.c
> > 
> > [snip]
> > 
> > > @@ -103,9 +103,10 @@ static int xvip_graph_build_one(struct
> > > xvip_composite_device *xdev, * the link.
> > >  		 */
> > >  		
> > >  		if (link.local_port >= local->num_pads) {
> > > 
> > > -			dev_err(xdev->dev, "invalid port number %u on %s\n",
> > > -				link.local_port, link.local_node->full_name);
> > > -			v4l2_of_put_link(&link);
> > > +			dev_err(xdev->dev, "invalid port number %u for %s\n",
> > > +				link.local_port,
> > > +				to_of_node(link.local_node)->full_name);
> > 
> > This makes me believe that we're missing a fwnode_full_name() function.
> 
> It'd be nice to have that, I agree. What should it do on non-OF nodes?
> Return a pointers to an empty string?

See above.

> > > +			v4l2_fwnode_put_link(&link);
> > > 
> > >  			ret = -EINVAL;
> > >  			break;
> > >  		
> > >  		}
> > 
> > [snip]

-- 
Regards,

Laurent Pinchart

Re: [PATCH v2 5/8] v4l: Switch from V4L2 OF not V4L2 fwnode API

[Sakari Ailus]

Hi Laurent,

On Fri, Apr 07, 2017 at 02:09:16PM +0300, Laurent Pinchart wrote:
> Hi Sakari,
> 
> On Friday 07 Apr 2017 13:58:06 Sakari Ailus wrote:
> > On Fri, Apr 07, 2017 at 01:32:54PM +0300, Laurent Pinchart wrote:
> > > On Thursday 06 Apr 2017 16:12:07 Sakari Ailus wrote:
> > > > Switch users of the v4l2_of_ APIs to the more generic v4l2_fwnode_ APIs.
> > > > 
> > > > Existing OF matching continues to be supported. omap3isp and smiapp
> > > > drivers are converted to fwnode matching as well.
> > > > 
> > > > Signed-off-by: Sakari Ailus <sakari.ailus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
> > > > Acked-by: Benoit Parrot <bparrot-l0cyMroinI0@public.gmane.org> # i2c/ov2569.c,
> > > > am437x/am437x-vpfe.c and ti-vpe/cal.c ---
> > > > 
> > > >  drivers/media/i2c/Kconfig                      |  9 ++++
> > > >  drivers/media/i2c/adv7604.c                    |  7 +--
> > > >  drivers/media/i2c/mt9v032.c                    |  7 +--
> > > >  drivers/media/i2c/ov2659.c                     |  8 +--
> > > >  drivers/media/i2c/s5c73m3/s5c73m3-core.c       |  7 +--
> > > >  drivers/media/i2c/s5k5baf.c                    |  6 +--
> > > >  drivers/media/i2c/smiapp/Kconfig               |  1 +
> > > >  drivers/media/i2c/smiapp/smiapp-core.c         | 29 ++++++-----
> > > >  drivers/media/i2c/tc358743.c                   | 11 ++--
> > > >  drivers/media/i2c/tvp514x.c                    |  6 +--
> > > >  drivers/media/i2c/tvp5150.c                    |  7 +--
> > > >  drivers/media/i2c/tvp7002.c                    |  6 +--
> > > >  drivers/media/platform/Kconfig                 |  3 ++
> > > >  drivers/media/platform/am437x/Kconfig          |  1 +
> > > >  drivers/media/platform/am437x/am437x-vpfe.c    |  8 +--
> > > >  drivers/media/platform/atmel/Kconfig           |  1 +
> > > >  drivers/media/platform/atmel/atmel-isc.c       |  8 +--
> > > >  drivers/media/platform/exynos4-is/Kconfig      |  2 +
> > > >  drivers/media/platform/exynos4-is/media-dev.c  |  6 +--
> > > >  drivers/media/platform/exynos4-is/mipi-csis.c  |  6 +--
> > > >  drivers/media/platform/omap3isp/isp.c          | 71  +++++++++---------
> > > >  drivers/media/platform/pxa_camera.c            |  7 +--
> > > >  drivers/media/platform/rcar-vin/Kconfig        |  1 +
> > > >  drivers/media/platform/rcar-vin/rcar-core.c    |  6 +--
> > > >  drivers/media/platform/soc_camera/Kconfig      |  1 +
> > > >  drivers/media/platform/soc_camera/atmel-isi.c  |  7 +--
> > > >  drivers/media/platform/soc_camera/soc_camera.c |  3 +-
> > > >  drivers/media/platform/ti-vpe/cal.c            | 11 ++--
> > > >  drivers/media/platform/xilinx/Kconfig          |  1 +
> > > >  drivers/media/platform/xilinx/xilinx-vipp.c    | 59  +++++++++---------
> > > >  include/media/v4l2-fwnode.h                    |  4 +-
> > > >  31 files changed, 176 insertions(+), 134 deletions(-)
> > > > 
> > > > diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
> > > > index cee1dae..6b2423a 100644
> > > > --- a/drivers/media/i2c/Kconfig
> > > > +++ b/drivers/media/i2c/Kconfig
> > > > @@ -210,6 +210,7 @@ config VIDEO_ADV7604
> > > > 
> > > >  	depends on GPIOLIB || COMPILE_TEST
> > > >  	select HDMI
> > > >  	select MEDIA_CEC_EDID
> > > > 
> > > > +	select V4L2_FWNODE
> > > 
> > > What happens when building the driver on a platform that includes neither
> > > OF nor ACPI support ?
> > 
> > You need either in practice, also for the V4L2 fwnode to be meaningful.
> > 
> > Do you have something in particular in mind?
> 
> I will obviously need either OF or ACPI to use the fwnode API, but some 
> drivers still support platform data (either on non-OF embedded systems, or 
> when the I2C device is part of a PCI card for instance). Compile-testing is 
> also a use case I'm concerned about.

Ah, so essentially compiling a driver using V4L2 fwnode with both ACPI and
OF disabled? I don't know if there are such drivers right now but that's a
good point in general.

> 
> [snip]
> 
> > > > diff --git a/drivers/media/platform/omap3isp/isp.c
> > > > b/drivers/media/platform/omap3isp/isp.c index 084ecf4a..95850b9 100644
> > > > --- a/drivers/media/platform/omap3isp/isp.c
> > > > +++ b/drivers/media/platform/omap3isp/isp.c
> > > 
> > > [snip]
> > > 
> > > > @@ -2024,43 +2025,42 @@ enum isp_of_phy {
> > > >  	ISP_OF_PHY_CSIPHY2,
> > > >  };
> > > > 
> > > > -static int isp_of_parse_node(struct device *dev, struct device_node
> > > > *node,
> > > > -			     struct isp_async_subdev *isd)
> > > > +static int isp_fwnode_parse(struct device *dev, struct fwnode_handle
> > > > *fwn,
> > > > +			    struct isp_async_subdev *isd)
> > > >  {
> > > >  	struct isp_bus_cfg *buscfg = &isd->bus;
> > > > -	struct v4l2_of_endpoint vep;
> > > > +	struct v4l2_fwnode_endpoint vfwn;
> > > 
> > > vfwn is confusing to me, I think the variable name should show that it
> > > refers to an endpoint.
> > 
> > How about adding ep to tell it's an endpoint?
> 
> I'd name is vep or endpoint.

I'll use "vep". "fwnode" for struct fwnode_handle pointers, it is an
established practice elsewhere.

> 
> > > >  	unsigned int i;
> > > >  	int ret;
> > > > 
> > > > -	ret = v4l2_of_parse_endpoint(node, &vep);
> > > > +	ret = v4l2_fwnode_endpoint_parse(fwn, &vfwn);
> > > >  	if (ret)
> > > >  		return ret;
> > > > 
> > > > -	dev_dbg(dev, "parsing endpoint %s, interface %u\n", node->full_name,
> > > > -		vep.base.port);
> > > > +	dev_dbg(dev, "interface %u\n", vfwn.base.port);
> > > 
> > > Is there no way to keep the node name in the error message ?
> > 
> > There's no generic fwnode means to do something similar currently, possibly
> > because I understand ACPI doesn't do that. One could check whether the node
> > is an OF node and then use the full_name field but I wonder if it's worth
> > it.
> 
> My ACPI knowledge is limited, but don't ACPI nodes have 4 character names that 
> can be combined in a string to create a full path ?

There is something, yes, but the ACPI framework currently has no such
functionality. I believe it could be implemented though. Cc Mika.

-- 
Kind regards,

Sakari Ailus
e-mail: sakari.ailus-X3B1VOXEql0@public.gmane.org	XMPP: sailus-PCDdDYkjdNMDXYZnReoRVg@public.gmane.org
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Re: [PATCH v2 5/8] v4l: Switch from V4L2 OF not V4L2 fwnode API

[Sakari Ailus]

Hi Laurent,

On Fri, Apr 07, 2017 at 02:09:16PM +0300, Laurent Pinchart wrote:
> Hi Sakari,
> 
> On Friday 07 Apr 2017 13:58:06 Sakari Ailus wrote:
> > On Fri, Apr 07, 2017 at 01:32:54PM +0300, Laurent Pinchart wrote:
> > > On Thursday 06 Apr 2017 16:12:07 Sakari Ailus wrote:
> > > > Switch users of the v4l2_of_ APIs to the more generic v4l2_fwnode_ APIs.
> > > > 
> > > > Existing OF matching continues to be supported. omap3isp and smiapp
> > > > drivers are converted to fwnode matching as well.
> > > > 
> > > > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> > > > Acked-by: Benoit Parrot <bparrot@ti.com> # i2c/ov2569.c,
> > > > am437x/am437x-vpfe.c and ti-vpe/cal.c ---
> > > > 
> > > >  drivers/media/i2c/Kconfig                      |  9 ++++
> > > >  drivers/media/i2c/adv7604.c                    |  7 +--
> > > >  drivers/media/i2c/mt9v032.c                    |  7 +--
> > > >  drivers/media/i2c/ov2659.c                     |  8 +--
> > > >  drivers/media/i2c/s5c73m3/s5c73m3-core.c       |  7 +--
> > > >  drivers/media/i2c/s5k5baf.c                    |  6 +--
> > > >  drivers/media/i2c/smiapp/Kconfig               |  1 +
> > > >  drivers/media/i2c/smiapp/smiapp-core.c         | 29 ++++++-----
> > > >  drivers/media/i2c/tc358743.c                   | 11 ++--
> > > >  drivers/media/i2c/tvp514x.c                    |  6 +--
> > > >  drivers/media/i2c/tvp5150.c                    |  7 +--
> > > >  drivers/media/i2c/tvp7002.c                    |  6 +--
> > > >  drivers/media/platform/Kconfig                 |  3 ++
> > > >  drivers/media/platform/am437x/Kconfig          |  1 +
> > > >  drivers/media/platform/am437x/am437x-vpfe.c    |  8 +--
> > > >  drivers/media/platform/atmel/Kconfig           |  1 +
> > > >  drivers/media/platform/atmel/atmel-isc.c       |  8 +--
> > > >  drivers/media/platform/exynos4-is/Kconfig      |  2 +
> > > >  drivers/media/platform/exynos4-is/media-dev.c  |  6 +--
> > > >  drivers/media/platform/exynos4-is/mipi-csis.c  |  6 +--
> > > >  drivers/media/platform/omap3isp/isp.c          | 71  +++++++++---------
> > > >  drivers/media/platform/pxa_camera.c            |  7 +--
> > > >  drivers/media/platform/rcar-vin/Kconfig        |  1 +
> > > >  drivers/media/platform/rcar-vin/rcar-core.c    |  6 +--
> > > >  drivers/media/platform/soc_camera/Kconfig      |  1 +
> > > >  drivers/media/platform/soc_camera/atmel-isi.c  |  7 +--
> > > >  drivers/media/platform/soc_camera/soc_camera.c |  3 +-
> > > >  drivers/media/platform/ti-vpe/cal.c            | 11 ++--
> > > >  drivers/media/platform/xilinx/Kconfig          |  1 +
> > > >  drivers/media/platform/xilinx/xilinx-vipp.c    | 59  +++++++++---------
> > > >  include/media/v4l2-fwnode.h                    |  4 +-
> > > >  31 files changed, 176 insertions(+), 134 deletions(-)
> > > > 
> > > > diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
> > > > index cee1dae..6b2423a 100644
> > > > --- a/drivers/media/i2c/Kconfig
> > > > +++ b/drivers/media/i2c/Kconfig
> > > > @@ -210,6 +210,7 @@ config VIDEO_ADV7604
> > > > 
> > > >  	depends on GPIOLIB || COMPILE_TEST
> > > >  	select HDMI
> > > >  	select MEDIA_CEC_EDID
> > > > 
> > > > +	select V4L2_FWNODE
> > > 
> > > What happens when building the driver on a platform that includes neither
> > > OF nor ACPI support ?
> > 
> > You need either in practice, also for the V4L2 fwnode to be meaningful.
> > 
> > Do you have something in particular in mind?
> 
> I will obviously need either OF or ACPI to use the fwnode API, but some 
> drivers still support platform data (either on non-OF embedded systems, or 
> when the I2C device is part of a PCI card for instance). Compile-testing is 
> also a use case I'm concerned about.

Ah, so essentially compiling a driver using V4L2 fwnode with both ACPI and
OF disabled? I don't know if there are such drivers right now but that's a
good point in general.

> 
> [snip]
> 
> > > > diff --git a/drivers/media/platform/omap3isp/isp.c
> > > > b/drivers/media/platform/omap3isp/isp.c index 084ecf4a..95850b9 100644
> > > > --- a/drivers/media/platform/omap3isp/isp.c
> > > > +++ b/drivers/media/platform/omap3isp/isp.c
> > > 
> > > [snip]
> > > 
> > > > @@ -2024,43 +2025,42 @@ enum isp_of_phy {
> > > >  	ISP_OF_PHY_CSIPHY2,
> > > >  };
> > > > 
> > > > -static int isp_of_parse_node(struct device *dev, struct device_node
> > > > *node,
> > > > -			     struct isp_async_subdev *isd)
> > > > +static int isp_fwnode_parse(struct device *dev, struct fwnode_handle
> > > > *fwn,
> > > > +			    struct isp_async_subdev *isd)
> > > >  {
> > > >  	struct isp_bus_cfg *buscfg = &isd->bus;
> > > > -	struct v4l2_of_endpoint vep;
> > > > +	struct v4l2_fwnode_endpoint vfwn;
> > > 
> > > vfwn is confusing to me, I think the variable name should show that it
> > > refers to an endpoint.
> > 
> > How about adding ep to tell it's an endpoint?
> 
> I'd name is vep or endpoint.

I'll use "vep". "fwnode" for struct fwnode_handle pointers, it is an
established practice elsewhere.

> 
> > > >  	unsigned int i;
> > > >  	int ret;
> > > > 
> > > > -	ret = v4l2_of_parse_endpoint(node, &vep);
> > > > +	ret = v4l2_fwnode_endpoint_parse(fwn, &vfwn);
> > > >  	if (ret)
> > > >  		return ret;
> > > > 
> > > > -	dev_dbg(dev, "parsing endpoint %s, interface %u\n", node->full_name,
> > > > -		vep.base.port);
> > > > +	dev_dbg(dev, "interface %u\n", vfwn.base.port);
> > > 
> > > Is there no way to keep the node name in the error message ?
> > 
> > There's no generic fwnode means to do something similar currently, possibly
> > because I understand ACPI doesn't do that. One could check whether the node
> > is an OF node and then use the full_name field but I wonder if it's worth
> > it.
> 
> My ACPI knowledge is limited, but don't ACPI nodes have 4 character names that 
> can be combined in a string to create a full path ?

There is something, yes, but the ACPI framework currently has no such
functionality. I believe it could be implemented though. Cc Mika.

-- 
Kind regards,

Sakari Ailus
e-mail: sakari.ailus@iki.fi	XMPP: sailus@retiisi.org.uk

Re: [PATCH v2 5/8] v4l: Switch from V4L2 OF not V4L2 fwnode API

[Mika Westerberg]

On Sat, Apr 08, 2017 at 01:55:15AM +0300, Sakari Ailus wrote:
> > My ACPI knowledge is limited, but don't ACPI nodes have 4 character names that 
> > can be combined in a string to create a full path ?
> 
> There is something, yes, but the ACPI framework currently has no such
> functionality. I believe it could be implemented though. Cc Mika.

All ACPI node names are 32-bit integers and those are combined to form a
path, like \_SB.PCI0.I2C0 and so on. A single ACPI node name cannot be
larger than 4 chars, though.

Re: [PATCH v2 5/8] v4l: Switch from V4L2 OF not V4L2 fwnode API

[Sakari Ailus]

Hi Mika and Laurent,

On 04/10/17 12:21, Mika Westerberg wrote:
> On Sat, Apr 08, 2017 at 01:55:15AM +0300, Sakari Ailus wrote:
>>> My ACPI knowledge is limited, but don't ACPI nodes have 4 character names that 
>>> can be combined in a string to create a full path ?
>>
>> There is something, yes, but the ACPI framework currently has no such
>> functionality. I believe it could be implemented though. Cc Mika.
> 
> All ACPI node names are 32-bit integers and those are combined to form a
> path, like \_SB.PCI0.I2C0 and so on. A single ACPI node name cannot be
> larger than 4 chars, though.

On OF, each node has a full_node string attached to it. You could
produce a similar string on ACPI, it is not currently done. Adding such
a string to each fwnode would require some extra memory as well. I
wonder if that could be a Kconfig option.

It would help debugging though.

Providing this information to the user space has been proposed as well:
Devicetree spec defines the syntax for such strings. The user can use
that information for recognising a particular device in the system.

The ACPI spec does, too, but it is limited to ACPI nodes and does not
address hierarchical data extensions. We'd define the syntax for those
ourselves.

Mika: what do you think?

On omap3isp and other drivers --- I think the solution for now should be
to assume OF instead. These drivers will be used on OF platforms only
anyway.

-- 
Kind regards,

Sakari Ailus
sakari.ailus@linux.intel.com

Re: [PATCH v2 5/8] v4l: Switch from V4L2 OF not V4L2 fwnode API

[Mika Westerberg]

On Mon, Apr 10, 2017 at 12:59:36PM +0300, Sakari Ailus wrote:
> Hi Mika and Laurent,
> 
> On 04/10/17 12:21, Mika Westerberg wrote:
> > On Sat, Apr 08, 2017 at 01:55:15AM +0300, Sakari Ailus wrote:
> >>> My ACPI knowledge is limited, but don't ACPI nodes have 4 character names that 
> >>> can be combined in a string to create a full path ?
> >>
> >> There is something, yes, but the ACPI framework currently has no such
> >> functionality. I believe it could be implemented though. Cc Mika.
> > 
> > All ACPI node names are 32-bit integers and those are combined to form a
> > path, like \_SB.PCI0.I2C0 and so on. A single ACPI node name cannot be
> > larger than 4 chars, though.
> 
> On OF, each node has a full_node string attached to it. You could
> produce a similar string on ACPI, it is not currently done. Adding such
> a string to each fwnode would require some extra memory as well. I
> wonder if that could be a Kconfig option.
> 
> It would help debugging though.
> 
> Providing this information to the user space has been proposed as well:
> Devicetree spec defines the syntax for such strings. The user can use
> that information for recognising a particular device in the system.
> 
> The ACPI spec does, too, but it is limited to ACPI nodes and does not
> address hierarchical data extensions. We'd define the syntax for those
> ourselves.
> 
> Mika: what do you think?

There is a function acpi_get_name() which you can use to extract the
full name of the node. Why not investigate how to use that instead of
duplicating the name in an ACPI node.

Re: [PATCH v2 5/8] v4l: Switch from V4L2 OF not V4L2 fwnode API

[Sakari Ailus]

Moi,

On 04/10/17 13:11, Mika Westerberg wrote:
> On Mon, Apr 10, 2017 at 12:59:36PM +0300, Sakari Ailus wrote:
>> Hi Mika and Laurent,
>>
>> On 04/10/17 12:21, Mika Westerberg wrote:
>>> On Sat, Apr 08, 2017 at 01:55:15AM +0300, Sakari Ailus wrote:
>>>>> My ACPI knowledge is limited, but don't ACPI nodes have 4 character names that 
>>>>> can be combined in a string to create a full path ?
>>>>
>>>> There is something, yes, but the ACPI framework currently has no such
>>>> functionality. I believe it could be implemented though. Cc Mika.
>>>
>>> All ACPI node names are 32-bit integers and those are combined to form a
>>> path, like \_SB.PCI0.I2C0 and so on. A single ACPI node name cannot be
>>> larger than 4 chars, though.
>>
>> On OF, each node has a full_node string attached to it. You could
>> produce a similar string on ACPI, it is not currently done. Adding such
>> a string to each fwnode would require some extra memory as well. I
>> wonder if that could be a Kconfig option.
>>
>> It would help debugging though.
>>
>> Providing this information to the user space has been proposed as well:
>> Devicetree spec defines the syntax for such strings. The user can use
>> that information for recognising a particular device in the system.
>>
>> The ACPI spec does, too, but it is limited to ACPI nodes and does not
>> address hierarchical data extensions. We'd define the syntax for those
>> ourselves.
>>
>> Mika: what do you think?
> 
> There is a function acpi_get_name() which you can use to extract the
> full name of the node. Why not investigate how to use that instead of
> duplicating the name in an ACPI node.
> 

acpi_get_name() would obviously be needed to produce such a string in
the first place.

acpi_get_name() puts the string to an existing buffer so it cannot be
used as such to return a pointer to a string (e.g. to be used for
snprintf()). Also, it only contains the device path of the device. The
data extension path matters here, too.

-- 
Regards,

Sakari Ailus
sakari.ailus@linux.intel.com