[PATCH 00/23] media: atomisp: Further media-controller related fixes + dead code removal

[PATCH 00/23] media: atomisp: Further media-controller related fixes + dead code removal

[Hans de Goede]

Hi all,

This patch-set contains a couple of atomisp driver fixes for issues which
I found while working on a libcamera pipeline handler for the atomisp
(and thus controlling the atomisp driver in a more media-controller centric
fashion).

Patches 1-8 are more or less prep work for fixing an ABBA deadlock in
atomisp_link_setup() in patch 9.

Diving into the code for this made my hands itch to remove of bunch of
atomisp custom internal APIs for things like flash support, so the rest
of the series is just removing a whole bunch of dead / unwanted code.

This series is also available here:
https://git.kernel.org/pub/scm/linux/kernel/git/hansg/linux.git/log/?h=media-atomisp

I'll do a forced push there addressing any review-comments + adding
tags before adding a signed-tag for a pull-request to Mauro for this.

Regards,

Hans


Hans de Goede (23):
  media: atomisp: Add atomisp_s_sensor_power() helper
  media: atomisp: Turn on sensor power from atomisp_set_fmt()
  media: atomisp: Add atomisp_select_input() helper
  media: atomisp: Simplify atomisp_s_input() input argument checking
  media: atomisp: Ensure CSI-receiver[x] -> ISP links correctly reflect
    current sensor
  media: atomisp: Propagate set_fmt on sensor results to CSI port
  media: atomisp: Propagate v4l2_mbus_framefmt.field to CSI port sink
    pad
  media: atomisp: Call media_pipeline_alloc_start() in stream start
  media: atomisp: Drop atomisp_pipe_check() from atomisp_link_setup()
  media: atomisp: ov2722: Remove power on sensor from set_fmt() callback
  media: atomisp: Remove test pattern generator (TPG) support
  media: atomisp: Remove input_port_ID_t
  media: atomisp: Drop the atomisp custom lm3554 flash driver
  media: atomisp: Drop custom flash support
  media: atomisp: Drop unused frame_status tracking
  media: atomisp: Drop intel_v4l2_subdev_type
  media: atomisp: Remove gmin_platform VCM code.
  media: atomisp: Remove struct atomisp_platform_data
  media: atomisp: Remove clearing of ISP crop / compose rectangles on
    file release
  media: atomisp: Remove empty s_power() op from ISP subdev
  media: atomisp: Remove empty s_stream() op from CSI subdev
  media: atomisp: Cleanup atomisp_isr_thread() spinlock handling
  media: atomisp: Remove setting of f->fmt.pix.priv from
    atomisp_set_fmt()

 drivers/staging/media/atomisp/Makefile        |   1 -
 drivers/staging/media/atomisp/i2c/Kconfig     |  15 -
 drivers/staging/media/atomisp/i2c/Makefile    |   5 -
 .../media/atomisp/i2c/atomisp-gc2235.c        |   2 +-
 .../media/atomisp/i2c/atomisp-lm3554.c        | 955 ------------------
 .../media/atomisp/i2c/atomisp-mt9m114.c       |   2 +-
 .../media/atomisp/i2c/atomisp-ov2722.c        |  14 +-
 drivers/staging/media/atomisp/i2c/ov2722.h    |   1 -
 .../media/atomisp/include/linux/atomisp.h     |  57 --
 .../include/linux/atomisp_gmin_platform.h     |   6 +-
 .../atomisp/include/linux/atomisp_platform.h  |  40 +-
 .../media/atomisp/include/media/lm3554.h      | 132 ---
 .../staging/media/atomisp/pci/atomisp_cmd.c   | 255 ++---
 .../staging/media/atomisp/pci/atomisp_cmd.h   |  13 +-
 .../media/atomisp/pci/atomisp_compat_css20.c  |  31 +-
 .../staging/media/atomisp/pci/atomisp_csi2.c  |  26 +-
 .../staging/media/atomisp/pci/atomisp_fops.c  |  49 +-
 .../media/atomisp/pci/atomisp_gmin_platform.c |  95 +-
 .../media/atomisp/pci/atomisp_internal.h      |  12 +-
 .../staging/media/atomisp/pci/atomisp_ioctl.c | 135 +--
 .../media/atomisp/pci/atomisp_subdev.c        |  46 +-
 .../media/atomisp/pci/atomisp_subdev.h        |  17 +-
 .../staging/media/atomisp/pci/atomisp_tpg.c   | 164 ---
 .../staging/media/atomisp/pci/atomisp_tpg.h   |  39 -
 .../staging/media/atomisp/pci/atomisp_v4l2.c  |  87 +-
 .../hive_isp_css_common/host/input_system.c   |  38 -
 drivers/staging/media/atomisp/pci/ia_css.h    |   1 -
 .../media/atomisp/pci/ia_css_frame_public.h   |   8 -
 .../media/atomisp/pci/ia_css_stream_public.h  |  17 -
 .../staging/media/atomisp/pci/ia_css_tpg.h    |  79 --
 .../atomisp/pci/isp2400_input_system_global.h |   1 -
 .../atomisp/pci/isp2400_input_system_public.h |  15 -
 .../atomisp/pci/isp2401_input_system_global.h |   1 -
 .../pci/runtime/debug/src/ia_css_debug.c      |  17 -
 .../atomisp/pci/runtime/ifmtr/src/ifmtr.c     |  11 -
 .../pci/runtime/isys/src/virtual_isys.c       |  28 +-
 drivers/staging/media/atomisp/pci/sh_css.c    | 121 +--
 .../media/atomisp/pci/sh_css_internal.h       |   1 -
 .../staging/media/atomisp/pci/sh_css_mipi.c   |   2 +-
 drivers/staging/media/atomisp/pci/sh_css_sp.c |  14 -
 drivers/staging/media/atomisp/pci/sh_css_sp.h |   7 -
 .../staging/media/atomisp/pci/system_global.h |  12 -
 42 files changed, 211 insertions(+), 2361 deletions(-)
 delete mode 100644 drivers/staging/media/atomisp/i2c/atomisp-lm3554.c
 delete mode 100644 drivers/staging/media/atomisp/include/media/lm3554.h
 delete mode 100644 drivers/staging/media/atomisp/pci/atomisp_tpg.c
 delete mode 100644 drivers/staging/media/atomisp/pci/atomisp_tpg.h
 delete mode 100644 drivers/staging/media/atomisp/pci/ia_css_tpg.h

-- 
2.44.0

[PATCH 01/23] media: atomisp: Add atomisp_s_sensor_power() helper

[Hans de Goede]

Since the atomisp driver only supports 1 stream / only has 1 asd now,
there is no longer a need to track which stream owns the sensor.

So the asd owner-pointer of struct atomisp_input_subdev can be dropped,
replace this with a simple camera_on boolean and add a new
atomisp_s_sensor_power() helper which takes care of avoiding unbalanced
s_power() subdev calls as well as takes care of handling the special
-ENOIOCTLCMD return for subdevs which don't implement s_power().

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 .../staging/media/atomisp/pci/atomisp_cmd.c   | 17 +++++++++++++++
 .../staging/media/atomisp/pci/atomisp_cmd.h   |  3 +++
 .../staging/media/atomisp/pci/atomisp_fops.c  | 14 +------------
 .../media/atomisp/pci/atomisp_internal.h      |  6 +-----
 .../staging/media/atomisp/pci/atomisp_ioctl.c | 21 ++++---------------
 5 files changed, 26 insertions(+), 35 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index 3a56cf68b688..6b8ff9f1ae63 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -3722,6 +3722,23 @@ void atomisp_get_padding(struct atomisp_device *isp, u32 width, u32 height,
 	*padding_h = max_t(u32, *padding_h, min_pad_h);
 }
 
+int atomisp_s_sensor_power(struct atomisp_device *isp, unsigned int input, bool on)
+{
+	int ret;
+
+	if (isp->inputs[input].camera_on == on)
+		return 0;
+
+	ret = v4l2_subdev_call(isp->inputs[input].camera, core, s_power, on);
+	if (ret && ret != -ENOIOCTLCMD) {
+		dev_err(isp->dev, "Error setting sensor power %d: %d\n", on, ret);
+		return ret;
+	}
+
+	isp->inputs[input].camera_on = on;
+	return 0;
+}
+
 static int atomisp_set_sensor_crop_and_fmt(struct atomisp_device *isp,
 					   struct v4l2_mbus_framefmt *ffmt,
 					   int which)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.h b/drivers/staging/media/atomisp/pci/atomisp_cmd.h
index b8cd957eebdc..2676236ee015 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.h
@@ -241,6 +241,9 @@ int atomisp_compare_grid(struct atomisp_sub_device *asd,
 void atomisp_get_padding(struct atomisp_device *isp, u32 width, u32 height,
 			 u32 *padding_w, u32 *padding_h);
 
+/* Set sensor power (no-op if already on/off) */
+int atomisp_s_sensor_power(struct atomisp_device *isp, unsigned int input, bool on);
+
 /* This function looks up the closest available resolution. */
 int atomisp_try_fmt(struct atomisp_device *isp, struct v4l2_pix_format *f,
 		    const struct atomisp_format_bridge **fmt_ret,
diff --git a/drivers/staging/media/atomisp/pci/atomisp_fops.c b/drivers/staging/media/atomisp/pci/atomisp_fops.c
index 4dba6120af39..b464a6bd0bad 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_fops.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_fops.c
@@ -445,12 +445,8 @@ const struct vb2_ops atomisp_vb2_ops = {
 
 static void atomisp_dev_init_struct(struct atomisp_device *isp)
 {
-	unsigned int i;
-
 	isp->isp_fatal_error = false;
 
-	for (i = 0; i < isp->input_cnt; i++)
-		isp->inputs[i].asd = NULL;
 	/*
 	 * For Merrifield, frequency is scalable.
 	 * After boot-up, the default frequency is 200MHz.
@@ -584,15 +580,7 @@ static int atomisp_release(struct file *file)
 	atomisp_css_free_stat_buffers(asd);
 	atomisp_free_internal_buffers(asd);
 
-	if (isp->inputs[asd->input_curr].asd == asd) {
-		ret = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
-				       core, s_power, 0);
-		if (ret && ret != -ENOIOCTLCMD)
-			dev_warn(isp->dev, "Failed to power-off sensor\n");
-
-		/* clear the asd field to show this camera is not used */
-		isp->inputs[asd->input_curr].asd = NULL;
-	}
+	atomisp_s_sensor_power(isp, asd->input_curr, 0);
 
 	atomisp_destroy_pipes_stream(asd);
 
diff --git a/drivers/staging/media/atomisp/pci/atomisp_internal.h b/drivers/staging/media/atomisp/pci/atomisp_internal.h
index d6e86d013be9..02fffa7f65e1 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_internal.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_internal.h
@@ -127,17 +127,13 @@ struct atomisp_input_subdev {
 	u32 code; /* MEDIA_BUS_FMT_* */
 	bool binning_support;
 	bool crop_support;
+	bool camera_on;
 	struct v4l2_subdev *camera;
 	/* Sensor rects for sensors which support crop */
 	struct v4l2_rect native_rect;
 	struct v4l2_rect active_rect;
 	/* Sensor state for which == V4L2_SUBDEV_FORMAT_TRY calls */
 	struct v4l2_subdev_state *try_sd_state;
-	/*
-	 * To show this resource is used by
-	 * which stream, in ISP multiple stream mode
-	 */
-	struct atomisp_sub_device *asd;
 };
 
 enum atomisp_dfs_mode {
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index d602bda134f9..be1f3f2ee63e 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -469,28 +469,15 @@ static int atomisp_s_input(struct file *file, void *fh, unsigned int input)
 	}
 
 	/* power off the current owned sensor, as it is not used this time */
-	if (isp->inputs[asd->input_curr].asd == asd &&
-	    asd->input_curr != input) {
-		ret = v4l2_subdev_call(isp->inputs[asd->input_curr].camera,
-				       core, s_power, 0);
-		if (ret && ret != -ENOIOCTLCMD)
-			dev_warn(isp->dev,
-				 "Failed to power-off sensor\n");
-		/* clear the asd field to show this camera is not used */
-		isp->inputs[asd->input_curr].asd = NULL;
-	}
+	if (input != isp->asd.input_curr)
+		atomisp_s_sensor_power(isp, isp->asd.input_curr, 0);
 
 	/* powe on the new sensor */
-	ret = v4l2_subdev_call(isp->inputs[input].camera, core, s_power, 1);
-	if (ret && ret != -ENOIOCTLCMD) {
-		dev_err(isp->dev, "Failed to power-on sensor\n");
+	ret = atomisp_s_sensor_power(isp, input, 1);
+	if (ret)
 		return ret;
-	}
 
 	asd->input_curr = input;
-	/* mark this camera is used by the current stream */
-	isp->inputs[input].asd = asd;
-
 	return 0;
 }
 
-- 
2.44.0

[PATCH 02/23] media: atomisp: Turn on sensor power from atomisp_set_fmt()

[Hans de Goede]

ATM the atomisp driver does not call s_power() at all when no s_input
ioctl() is done by the application. This breaks older sensor drivers
which rely on s_power() for power-management.

Some drivers have worked around this, e.g. commit c5fafbadaeae ("media:
atomisp: gc0310: Power on sensor from set_fmt() callback") and
commit b3118a942c82 ("media: atomisp: ov2722: Power on sensor from
set_fmt() callback"), but this really should be fixed in the atomisp
driver itself, so that all old drivers can work.

A logical place to call s_power() would be from atomisp_start_streaming() /
atomisp_stop_streaming(). But some older drivers, e.g. the atomisp-ov2722
driver already write mode related registers on set_fmt() instead of waiting
on stream on. So the s_power(1) needs to happen at the first set_fmt().

Add an atomisp_s_sensor_power(..., 1) call just before calling set_fmt()
for this. If the power was already enabled through e.g. a s_input ioctl
atomisp_s_sensor_power() will skip calling the s_power() v4l2-subdev-op
a second time.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/staging/media/atomisp/pci/atomisp_cmd.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index 6b8ff9f1ae63..83a15a2d358e 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -3760,6 +3760,17 @@ static int atomisp_set_sensor_crop_and_fmt(struct atomisp_device *isp,
 	if (!input->camera)
 		return -EINVAL;
 
+	/*
+	 * Some old sensor drivers already write the registers on set_fmt
+	 * instead of on stream on, power on the sensor now (on newer
+	 * sensor drivers the s_power op is a no-op).
+	 */
+	if (which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+		ret = atomisp_s_sensor_power(isp, isp->asd.input_curr, 1);
+		if (ret)
+			return ret;
+	}
+
 	sd_state = (which == V4L2_SUBDEV_FORMAT_TRY) ? input->try_sd_state :
 						       input->camera->active_state;
 	if (sd_state)
-- 
2.44.0

[PATCH 03/23] media: atomisp: Add atomisp_select_input() helper

[Hans de Goede]

When switching input/sensor the s_power() callback must be called
for old sensor drivers to power on the new sensor and power off
the previous sensor.

atomisp_s_input() already does this but atomisp_link_setup()
did not do this.

Add a new atomisp_select_input() helper which does this and use this
in both atomisp_s_input() and atomisp_link_setup() for consistent
behavior.

Also make atomisp_link_setup() turn the sensor back off when
a link gets disabled.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 .../staging/media/atomisp/pci/atomisp_cmd.c   | 19 +++++++++++++++++++
 .../staging/media/atomisp/pci/atomisp_cmd.h   |  3 +++
 .../staging/media/atomisp/pci/atomisp_ioctl.c | 13 +------------
 .../media/atomisp/pci/atomisp_subdev.c        | 15 +++++++++------
 4 files changed, 32 insertions(+), 18 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index 83a15a2d358e..6c93bab17955 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -3739,6 +3739,25 @@ int atomisp_s_sensor_power(struct atomisp_device *isp, unsigned int input, bool
 	return 0;
 }
 
+int atomisp_select_input(struct atomisp_device *isp, unsigned int input)
+{
+	unsigned int input_orig = isp->asd.input_curr;
+	int ret;
+
+	/* Power on new sensor */
+	ret = atomisp_s_sensor_power(isp, input, 1);
+	if (ret)
+		return ret;
+
+	isp->asd.input_curr = input;
+
+	/* Power off previous sensor */
+	if (input != input_orig)
+		atomisp_s_sensor_power(isp, input_orig, 0);
+
+	return 0;
+}
+
 static int atomisp_set_sensor_crop_and_fmt(struct atomisp_device *isp,
 					   struct v4l2_mbus_framefmt *ffmt,
 					   int which)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.h b/drivers/staging/media/atomisp/pci/atomisp_cmd.h
index 2676236ee015..f302763b7b2f 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.h
@@ -244,6 +244,9 @@ void atomisp_get_padding(struct atomisp_device *isp, u32 width, u32 height,
 /* Set sensor power (no-op if already on/off) */
 int atomisp_s_sensor_power(struct atomisp_device *isp, unsigned int input, bool on);
 
+/* Select which sensor to use, must be called with a valid input */
+int atomisp_select_input(struct atomisp_device *isp, unsigned int input);
+
 /* This function looks up the closest available resolution. */
 int atomisp_try_fmt(struct atomisp_device *isp, struct v4l2_pix_format *f,
 		    const struct atomisp_format_bridge **fmt_ret,
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index be1f3f2ee63e..b3ad53449cb8 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -449,7 +449,6 @@ static int atomisp_s_input(struct file *file, void *fh, unsigned int input)
 	struct video_device *vdev = video_devdata(file);
 	struct atomisp_device *isp = video_get_drvdata(vdev);
 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
-	struct atomisp_sub_device *asd = pipe->asd;
 	struct v4l2_subdev *camera = NULL;
 	int ret;
 
@@ -468,17 +467,7 @@ static int atomisp_s_input(struct file *file, void *fh, unsigned int input)
 		return -EINVAL;
 	}
 
-	/* power off the current owned sensor, as it is not used this time */
-	if (input != isp->asd.input_curr)
-		atomisp_s_sensor_power(isp, isp->asd.input_curr, 0);
-
-	/* powe on the new sensor */
-	ret = atomisp_s_sensor_power(isp, input, 1);
-	if (ret)
-		return ret;
-
-	asd->input_curr = input;
-	return 0;
+	return atomisp_select_input(isp, input);
 }
 
 /*
diff --git a/drivers/staging/media/atomisp/pci/atomisp_subdev.c b/drivers/staging/media/atomisp/pci/atomisp_subdev.c
index c36aae69d6f7..aabffd6a424d 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_subdev.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_subdev.c
@@ -663,9 +663,6 @@ static int atomisp_link_setup(struct media_entity *entity,
 		return -EINVAL;
 	}
 
-	/* Ignore disables, input_curr should only be updated on enables */
-	if (!(flags & MEDIA_LNK_FL_ENABLED))
-		return 0;
 
 	for (i = 0; i < isp->input_cnt; i++) {
 		if (isp->inputs[i].camera == isp->sensor_subdevs[csi_idx])
@@ -679,11 +676,17 @@ static int atomisp_link_setup(struct media_entity *entity,
 
 	mutex_lock(&isp->mutex);
 	ret = atomisp_pipe_check(&asd->video_out, true);
-	if (ret == 0)
-		asd->input_curr = i;
 	mutex_unlock(&isp->mutex);
+	if (ret)
+		return ret;
 
-	return ret;
+	/* Turn off the sensor on link disable */
+	if (!(flags & MEDIA_LNK_FL_ENABLED)) {
+		atomisp_s_sensor_power(isp, i, 0);
+		return 0;
+	}
+
+	return atomisp_select_input(isp, i);
 }
 
 static const struct media_entity_operations isp_subdev_media_ops = {
-- 
2.44.0

[PATCH 04/23] media: atomisp: Simplify atomisp_s_input() input argument checking

[Hans de Goede]

Simplify the checking of the input argument to atomisp_s_input():
- Remove the check for input >= ATOM_ISP_MAX_INPUTS, input_cnt
  never is > ATOM_ISP_MAX_INPUTS so checking only that is sufficient
- Remove the unnecessary camera local variable
- Move the 2 invalid argument checks to above the atomisp_pipe_check()
  which checks if the pipe is busy or not

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 .../staging/media/atomisp/pci/atomisp_ioctl.c  | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index b3ad53449cb8..1f8d44900a82 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -449,24 +449,18 @@ static int atomisp_s_input(struct file *file, void *fh, unsigned int input)
 	struct video_device *vdev = video_devdata(file);
 	struct atomisp_device *isp = video_get_drvdata(vdev);
 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
-	struct v4l2_subdev *camera = NULL;
 	int ret;
 
+	if (input >= isp->input_cnt)
+		return -EINVAL;
+
+	if (!isp->inputs[input].camera)
+		return -EINVAL;
+
 	ret = atomisp_pipe_check(pipe, true);
 	if (ret)
 		return ret;
 
-	if (input >= ATOM_ISP_MAX_INPUTS || input >= isp->input_cnt) {
-		dev_dbg(isp->dev, "input_cnt: %d\n", isp->input_cnt);
-		return -EINVAL;
-	}
-
-	camera = isp->inputs[input].camera;
-	if (!camera) {
-		dev_err(isp->dev, "%s, no camera\n", __func__);
-		return -EINVAL;
-	}
-
 	return atomisp_select_input(isp, input);
 }
 
-- 
2.44.0

[PATCH 05/23] media: atomisp: Ensure CSI-receiver[x] -> ISP links correctly reflect current sensor

[Hans de Goede]

Add a new atomisp_setup_input_links() helper which ensures that
the CSI-receiver -> ISP link for input_curr is marked as enabled and
the other CSI-receiver -> ISP links are disabled.

And call this helper from atomisp_register_device_nodes() for the initial
setup and from atomisp_select_input() for runtime input_curr changes.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 .../staging/media/atomisp/pci/atomisp_cmd.c   | 34 +++++++++++++++++++
 .../staging/media/atomisp/pci/atomisp_cmd.h   |  3 ++
 .../staging/media/atomisp/pci/atomisp_ioctl.c |  6 +++-
 .../staging/media/atomisp/pci/atomisp_v4l2.c  |  4 +++
 4 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index 6c93bab17955..b273234dc439 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -3755,9 +3755,43 @@ int atomisp_select_input(struct atomisp_device *isp, unsigned int input)
 	if (input != input_orig)
 		atomisp_s_sensor_power(isp, input_orig, 0);
 
+	atomisp_setup_input_links(isp);
 	return 0;
 }
 
+/*
+ * Ensure the CSI-receiver -> ISP link for input_curr is marked as enabled and
+ * the other CSI-receiver -> ISP links are disabled.
+ */
+void atomisp_setup_input_links(struct atomisp_device *isp)
+{
+	struct media_link *link;
+
+	lockdep_assert_held(&isp->media_dev.graph_mutex);
+
+	for (int i = 0; i < ATOMISP_CAMERA_NR_PORTS; i++) {
+		link = media_entity_find_link(
+				&isp->csi2_port[i].subdev.entity.pads[CSI2_PAD_SOURCE],
+				&isp->asd.subdev.entity.pads[ATOMISP_SUBDEV_PAD_SINK]);
+		if (!link) {
+			dev_err(isp->dev, "Error cannot find CSI2-port[%d] -> ISP link\n", i);
+			continue; /* Should never happen */
+		}
+
+		/*
+		 * Modify the flags directly, calling media_entity_setup_link()
+		 * will end up calling atomisp_link_setup() which calls this
+		 * function again leading to endless recursion.
+		 */
+		if (isp->sensor_subdevs[i] == isp->inputs[isp->asd.input_curr].camera)
+			link->flags |= MEDIA_LNK_FL_ENABLED;
+		else
+			link->flags &= ~MEDIA_LNK_FL_ENABLED;
+
+		link->reverse->flags = link->flags;
+	}
+}
+
 static int atomisp_set_sensor_crop_and_fmt(struct atomisp_device *isp,
 					   struct v4l2_mbus_framefmt *ffmt,
 					   int which)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.h b/drivers/staging/media/atomisp/pci/atomisp_cmd.h
index f302763b7b2f..03703eed86fa 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.h
@@ -247,6 +247,9 @@ int atomisp_s_sensor_power(struct atomisp_device *isp, unsigned int input, bool
 /* Select which sensor to use, must be called with a valid input */
 int atomisp_select_input(struct atomisp_device *isp, unsigned int input);
 
+/* Setup media-controller links to reflect input_curr setting */
+void atomisp_setup_input_links(struct atomisp_device *isp);
+
 /* This function looks up the closest available resolution. */
 int atomisp_try_fmt(struct atomisp_device *isp, struct v4l2_pix_format *f,
 		    const struct atomisp_format_bridge **fmt_ret,
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index 1f8d44900a82..c16942051cfb 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -461,7 +461,11 @@ static int atomisp_s_input(struct file *file, void *fh, unsigned int input)
 	if (ret)
 		return ret;
 
-	return atomisp_select_input(isp, input);
+	mutex_lock(&isp->media_dev.graph_mutex);
+	ret = atomisp_select_input(isp, input);
+	mutex_unlock(&isp->media_dev.graph_mutex);
+
+	return ret;
 }
 
 /*
diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
index 1d7d38e2f904..1008a709b589 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
@@ -1085,6 +1085,10 @@ int atomisp_register_device_nodes(struct atomisp_device *isp)
 		dev_warn(isp->dev, "too many atomisp inputs, TPG ignored.\n");
 	}
 
+	mutex_lock(&isp->media_dev.graph_mutex);
+	atomisp_setup_input_links(isp);
+	mutex_unlock(&isp->media_dev.graph_mutex);
+
 	isp->asd.video_out.vdev.v4l2_dev = &isp->v4l2_dev;
 	isp->asd.video_out.vdev.device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
 	err = video_register_device(&isp->asd.video_out.vdev, VFL_TYPE_VIDEO, -1);
-- 
2.44.0

[PATCH 06/23] media: atomisp: Propagate set_fmt on sensor results to CSI port

[Hans de Goede]

So far the CSI port sink and source pads have not had their fmt set at all,
leaving things at the default of SBGGR8_1X8/0x0.

This means that pipeline validation such as e.g. done when calling
media_pipeline_start() will fail since the links to / from the CSI
ports have different fmts on each end.

Store a pointer to the CSI port v4l2-subdev in struct atomisp_input_subdev,
and use this in atomisp_set_sensor_crop_and_fmt() to propagate the sensors
new fmt after a successful set_fmt to the CSI port it is connected too.

The input->csi_port pointer also allows simplifying atomisp_link_setup().

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/staging/media/atomisp/pci/atomisp_cmd.c |  7 +++++++
 .../media/atomisp/pci/atomisp_internal.h        |  1 +
 .../staging/media/atomisp/pci/atomisp_subdev.c  | 17 +++--------------
 .../staging/media/atomisp/pci/atomisp_v4l2.c    |  1 +
 4 files changed, 12 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index b273234dc439..ecd521043021 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -3858,6 +3858,13 @@ static int atomisp_set_sensor_crop_and_fmt(struct atomisp_device *isp,
 	if (sd_state)
 		v4l2_subdev_unlock_state(sd_state);
 
+	/* Propagate new fmt to CSI port */
+	if (which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+		ret = v4l2_subdev_call(input->csi_port, pad, set_fmt, NULL, &format);
+		if (ret)
+			return ret;
+	}
+
 	*ffmt = format.format;
 	return ret;
 }
diff --git a/drivers/staging/media/atomisp/pci/atomisp_internal.h b/drivers/staging/media/atomisp/pci/atomisp_internal.h
index 02fffa7f65e1..c81a1c5f2864 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_internal.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_internal.h
@@ -129,6 +129,7 @@ struct atomisp_input_subdev {
 	bool crop_support;
 	bool camera_on;
 	struct v4l2_subdev *camera;
+	struct v4l2_subdev *csi_port;
 	/* Sensor rects for sensors which support crop */
 	struct v4l2_rect native_rect;
 	struct v4l2_rect active_rect;
diff --git a/drivers/staging/media/atomisp/pci/atomisp_subdev.c b/drivers/staging/media/atomisp/pci/atomisp_subdev.c
index aabffd6a424d..53225958c23b 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_subdev.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_subdev.c
@@ -644,7 +644,7 @@ static int atomisp_link_setup(struct media_entity *entity,
 					      entity);
 	struct atomisp_sub_device *asd = v4l2_get_subdevdata(sd);
 	struct atomisp_device *isp = asd->isp;
-	int i, csi_idx, ret;
+	int i, ret;
 
 	/* ISP's source is immutable */
 	if (local != &asd->pads[ATOMISP_SUBDEV_PAD_SINK]) {
@@ -653,24 +653,13 @@ static int atomisp_link_setup(struct media_entity *entity,
 		return -EINVAL;
 	}
 
-	for (csi_idx = 0; csi_idx < ATOMISP_CAMERA_NR_PORTS; csi_idx++) {
-		if (&isp->csi2_port[csi_idx].pads[CSI2_PAD_SOURCE] == remote)
-			break;
-	}
-
-	if (csi_idx == ATOMISP_CAMERA_NR_PORTS) {
-		v4l2_err(sd, "Error cannot find CSI receiver for remote pad\n");
-		return -EINVAL;
-	}
-
-
 	for (i = 0; i < isp->input_cnt; i++) {
-		if (isp->inputs[i].camera == isp->sensor_subdevs[csi_idx])
+		if (&isp->inputs[i].csi_port->entity.pads[CSI2_PAD_SOURCE] == remote)
 			break;
 	}
 
 	if (i == isp->input_cnt) {
-		v4l2_err(sd, "Error no sensor for CSI receiver %d\n", csi_idx);
+		v4l2_err(sd, "Error no sensor for selected CSI receiver\n");
 		return -EINVAL;
 	}
 
diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
index 1008a709b589..809b9c4e7a92 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
@@ -1058,6 +1058,7 @@ int atomisp_register_device_nodes(struct atomisp_device *isp)
 		input->type = RAW_CAMERA;
 		input->port = i;
 		input->camera = isp->sensor_subdevs[i];
+		input->csi_port = &isp->csi2_port[i].subdev;
 
 		atomisp_init_sensor(input);
 
-- 
2.44.0

[PATCH 07/23] media: atomisp: Propagate v4l2_mbus_framefmt.field to CSI port sink pad

[Hans de Goede]

Most sensor drivers report V4L2_FIELD_NONE as v4l2_mbus_framefmt.field
value. Propagate this to the v4l2_mbus_framefmt for the CSI port to pass
the link validation done by media_pipeline_start().

Keep the v4l2_mbus_framefmt.field for the source pad of the CSI port
as V4L2_FIELD_ANY to match the ISP sink pad.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/staging/media/atomisp/pci/atomisp_csi2.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_csi2.c b/drivers/staging/media/atomisp/pci/atomisp_csi2.c
index 89118438a3b6..e939a09a279b 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_csi2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_csi2.c
@@ -107,9 +107,12 @@ int atomisp_csi2_set_ffmt(struct v4l2_subdev *sd,
 		actual_ffmt->height = clamp_t(u32, ffmt->height,
 					      ATOM_ISP_MIN_HEIGHT,
 					      ATOM_ISP_MAX_HEIGHT);
+		actual_ffmt->field = ffmt->field;
 
 		tmp_ffmt = *ffmt = *actual_ffmt;
 
+		/* Always use V4L2_FIELD_ANY to match the ISP sink pad */
+		tmp_ffmt.field = V4L2_FIELD_ANY;
 		return atomisp_csi2_set_ffmt(sd, sd_state, which,
 					     CSI2_PAD_SOURCE,
 					     &tmp_ffmt);
-- 
2.44.0

[PATCH 08/23] media: atomisp: Call media_pipeline_alloc_start() in stream start

[Hans de Goede]

Call media_pipeline_alloc_start() from atomisp_start_streaming() to mark
all involved subdevs as busy so that the links cannot be changed through
the media-controller APIs while streaming.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/staging/media/atomisp/pci/atomisp_ioctl.c | 15 +++++++++++++++
 .../staging/media/atomisp/pci/atomisp_subdev.h    |  1 +
 2 files changed, 16 insertions(+)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index c16942051cfb..8ef8cbc3b7a7 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -902,6 +902,20 @@ int atomisp_start_streaming(struct vb2_queue *vq, unsigned int count)
 	if (ret)
 		goto out_unlock;
 
+	/*
+	 * When running a classic v4l2 app after a media-controller aware
+	 * app, the CSI-receiver -> ISP link for the current sensor may be
+	 * disabled. Fix this up before marking the pipeline as started.
+	 */
+	mutex_lock(&isp->media_dev.graph_mutex);
+	atomisp_setup_input_links(isp);
+	ret = __media_pipeline_start(&asd->video_out.vdev.entity.pads[0], &asd->video_out.pipe);
+	mutex_unlock(&isp->media_dev.graph_mutex);
+	if (ret) {
+		dev_err(isp->dev, "Error starting mc pipline: %d\n", ret);
+		goto out_unlock;
+	}
+
 	/* Input system HW workaround */
 	atomisp_dma_burst_len_cfg(asd);
 
@@ -1054,6 +1068,7 @@ void atomisp_stop_streaming(struct vb2_queue *vq)
 	if (ret)
 		dev_warn(isp->dev, "Recreating streams failed: %d\n", ret);
 
+	media_pipeline_stop(&asd->video_out.vdev.entity.pads[0]);
 	mutex_unlock(&isp->mutex);
 }
 
diff --git a/drivers/staging/media/atomisp/pci/atomisp_subdev.h b/drivers/staging/media/atomisp/pci/atomisp_subdev.h
index 9c1703bf439c..bcfa829dbf61 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_subdev.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_subdev.h
@@ -49,6 +49,7 @@ struct atomisp_video_pipe {
 	struct video_device vdev;
 	enum v4l2_buf_type type;
 	struct media_pad pad;
+	struct media_pipeline pipe;
 	struct vb2_queue vb_queue;
 	/* Lock for vb_queue, when also taking isp->mutex this must be taken first! */
 	struct mutex vb_queue_mutex;
-- 
2.44.0

[PATCH 09/23] media: atomisp: Drop atomisp_pipe_check() from atomisp_link_setup()

[Hans de Goede]

The media-controller core (__media_entity_setup_link()) already checks
that the pads of the link are not streaming before calling the setup_link()
pad-op so calling atomisp_pipe_check() is not necessary;

and taking isp->mutex inside the setup_link() pad-op leads to a possible
ABBA deadlock vs the media-device graph_mutex which in the case of
the setup_link() pad-op is taken before calling the op, while in other
scenarios the graph_mutex is taken after the isp->mutex.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/staging/media/atomisp/pci/atomisp_subdev.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_subdev.c b/drivers/staging/media/atomisp/pci/atomisp_subdev.c
index 53225958c23b..1bb33460210c 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_subdev.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_subdev.c
@@ -644,7 +644,7 @@ static int atomisp_link_setup(struct media_entity *entity,
 					      entity);
 	struct atomisp_sub_device *asd = v4l2_get_subdevdata(sd);
 	struct atomisp_device *isp = asd->isp;
-	int i, ret;
+	int i;
 
 	/* ISP's source is immutable */
 	if (local != &asd->pads[ATOMISP_SUBDEV_PAD_SINK]) {
@@ -663,12 +663,6 @@ static int atomisp_link_setup(struct media_entity *entity,
 		return -EINVAL;
 	}
 
-	mutex_lock(&isp->mutex);
-	ret = atomisp_pipe_check(&asd->video_out, true);
-	mutex_unlock(&isp->mutex);
-	if (ret)
-		return ret;
-
 	/* Turn off the sensor on link disable */
 	if (!(flags & MEDIA_LNK_FL_ENABLED)) {
 		atomisp_s_sensor_power(isp, i, 0);
-- 
2.44.0

[PATCH 10/23] media: atomisp: ov2722: Remove power on sensor from set_fmt() callback

[Hans de Goede]

The atomisp driver now properly ensures s_power(1) is called before calling
the set_fmt() callback, so this workaround is no longer necessary.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/staging/media/atomisp/i2c/atomisp-ov2722.c | 12 ------------
 drivers/staging/media/atomisp/i2c/ov2722.h         |  1 -
 2 files changed, 13 deletions(-)

diff --git a/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c b/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c
index 133e346ae51b..d60630ea16df 100644
--- a/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c
+++ b/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c
@@ -528,9 +528,6 @@ static int power_up(struct v4l2_subdev *sd)
 		return -ENODEV;
 	}
 
-	if (dev->power_on == 1)
-		return 0; /* Already on */
-
 	/* power control */
 	ret = power_ctrl(sd, 1);
 	if (ret)
@@ -555,7 +552,6 @@ static int power_up(struct v4l2_subdev *sd)
 	/* according to DS, 20ms is needed between PWDN and i2c access */
 	msleep(20);
 
-	dev->power_on = 1;
 	return 0;
 
 fail_clk:
@@ -579,9 +575,6 @@ static int power_down(struct v4l2_subdev *sd)
 		return -ENODEV;
 	}
 
-	if (dev->power_on == 0)
-		return 0; /* Already off */
-
 	ret = dev->platform_data->flisclk_ctrl(sd, 0);
 	if (ret)
 		dev_err(&client->dev, "flisclk failed\n");
@@ -599,7 +592,6 @@ static int power_down(struct v4l2_subdev *sd)
 	if (ret)
 		dev_err(&client->dev, "vprog failed.\n");
 
-	dev->power_on = 0;
 	return ret;
 }
 
@@ -677,9 +669,6 @@ static int ov2722_set_fmt(struct v4l2_subdev *sd,
 
 	mutex_lock(&dev->input_lock);
 
-	/* s_power has not been called yet for std v4l2 clients (camorama) */
-	power_up(sd);
-
 	dev->pixels_per_line = dev->res->pixels_per_line;
 	dev->lines_per_frame = dev->res->lines_per_frame;
 
@@ -978,7 +967,6 @@ static int ov2722_probe(struct i2c_client *client)
 		return -ENOMEM;
 
 	mutex_init(&dev->input_lock);
-	dev->power_on = -1;
 
 	dev->res = &ov2722_res_preview[0];
 	v4l2_i2c_subdev_init(&dev->sd, client, &ov2722_ops);
diff --git a/drivers/staging/media/atomisp/i2c/ov2722.h b/drivers/staging/media/atomisp/i2c/ov2722.h
index 640d3ffcaa5c..5920a4d45d06 100644
--- a/drivers/staging/media/atomisp/i2c/ov2722.h
+++ b/drivers/staging/media/atomisp/i2c/ov2722.h
@@ -198,7 +198,6 @@ struct ov2722_device {
 	struct ov2722_resolution *res;
 
 	struct camera_sensor_platform_data *platform_data;
-	int power_on;
 	u16 pixels_per_line;
 	u16 lines_per_frame;
 	u8 type;
-- 
2.44.0

[PATCH 11/23] media: atomisp: Remove test pattern generator (TPG) support

[Hans de Goede]

The TPG support registers a v4l2-subdev for this, but this is not part of
the media-controller graph in any way. After manually selecting the TPG
as input using the s_input ioctl it does not work.

Several supported sensors have their own working TPG and using the sensor's
TPG means that the same data-flow is used as with actual sensors rather
then the quite different data-flow from the ISP's builtin TPG.

Remove the broken TPG support, when a test-pattern is needed for testing
a sensor's TPG can be used. Using a sensor's TPG is actually better for
testing since then the actual normal data-flow is being tested.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/staging/media/atomisp/Makefile        |   1 -
 .../atomisp/include/linux/atomisp_platform.h  |   1 -
 .../staging/media/atomisp/pci/atomisp_cmd.c   |  36 ++--
 .../media/atomisp/pci/atomisp_compat_css20.c  |  31 +---
 .../media/atomisp/pci/atomisp_internal.h      |   2 -
 .../staging/media/atomisp/pci/atomisp_tpg.c   | 164 ------------------
 .../staging/media/atomisp/pci/atomisp_tpg.h   |  39 -----
 .../staging/media/atomisp/pci/atomisp_v4l2.c  |  27 ---
 .../hive_isp_css_common/host/input_system.c   |  38 ----
 drivers/staging/media/atomisp/pci/ia_css.h    |   1 -
 .../media/atomisp/pci/ia_css_stream_public.h  |   3 -
 .../staging/media/atomisp/pci/ia_css_tpg.h    |  79 ---------
 .../atomisp/pci/isp2400_input_system_global.h |   1 -
 .../atomisp/pci/isp2400_input_system_public.h |  15 --
 .../atomisp/pci/isp2401_input_system_global.h |   1 -
 .../pci/runtime/debug/src/ia_css_debug.c      |  17 --
 .../atomisp/pci/runtime/ifmtr/src/ifmtr.c     |  11 --
 .../pci/runtime/isys/src/virtual_isys.c       |  28 +--
 drivers/staging/media/atomisp/pci/sh_css.c    |  88 +---------
 .../media/atomisp/pci/sh_css_internal.h       |   1 -
 drivers/staging/media/atomisp/pci/sh_css_sp.c |  14 --
 drivers/staging/media/atomisp/pci/sh_css_sp.h |   7 -
 22 files changed, 20 insertions(+), 585 deletions(-)
 delete mode 100644 drivers/staging/media/atomisp/pci/atomisp_tpg.c
 delete mode 100644 drivers/staging/media/atomisp/pci/atomisp_tpg.h
 delete mode 100644 drivers/staging/media/atomisp/pci/ia_css_tpg.h

diff --git a/drivers/staging/media/atomisp/Makefile b/drivers/staging/media/atomisp/Makefile
index fcd3e51ae9ce..43116c74781d 100644
--- a/drivers/staging/media/atomisp/Makefile
+++ b/drivers/staging/media/atomisp/Makefile
@@ -21,7 +21,6 @@ atomisp-objs += \
 	pci/atomisp_fops.o \
 	pci/atomisp_ioctl.o \
 	pci/atomisp_subdev.o \
-	pci/atomisp_tpg.o \
 	pci/atomisp_v4l2.o \
 	pci/sh_css_firmware.o \
 	pci/sh_css_host_data.o \
diff --git a/drivers/staging/media/atomisp/include/linux/atomisp_platform.h b/drivers/staging/media/atomisp/include/linux/atomisp_platform.h
index 2535402afd73..63dd7236e3a8 100644
--- a/drivers/staging/media/atomisp/include/linux/atomisp_platform.h
+++ b/drivers/staging/media/atomisp/include/linux/atomisp_platform.h
@@ -112,7 +112,6 @@ enum atomisp_input_format {
 enum intel_v4l2_subdev_type {
 	RAW_CAMERA = 1,
 	LED_FLASH = 2,
-	TEST_PATTERN = 3,
 };
 
 struct intel_v4l2_subdev_id {
diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index ecd521043021..4505261a563f 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -4143,28 +4143,26 @@ static int atomisp_set_fmt_to_isp(struct video_device *vdev,
 	if (!format)
 		return -EINVAL;
 
-	if (input->type != TEST_PATTERN) {
-		mipi_info = atomisp_to_sensor_mipi_info(input->camera);
+	mipi_info = atomisp_to_sensor_mipi_info(input->camera);
 
-		if (atomisp_set_sensor_mipi_to_isp(asd, ATOMISP_INPUT_STREAM_GENERAL,
-						   mipi_info))
-			return -EINVAL;
+	if (atomisp_set_sensor_mipi_to_isp(asd, ATOMISP_INPUT_STREAM_GENERAL,
+					   mipi_info))
+		return -EINVAL;
 
-		if (mipi_info)
-			fc = atomisp_find_in_fmt_conv_by_atomisp_in_fmt(mipi_info->input_format);
+	if (mipi_info)
+		fc = atomisp_find_in_fmt_conv_by_atomisp_in_fmt(mipi_info->input_format);
 
-		if (!fc)
-			fc = atomisp_find_in_fmt_conv(
-				 atomisp_subdev_get_ffmt(&asd->subdev,
-							 NULL, V4L2_SUBDEV_FORMAT_ACTIVE,
-							 ATOMISP_SUBDEV_PAD_SINK)->code);
-		if (!fc)
-			return -EINVAL;
-		if (format->sh_fmt == IA_CSS_FRAME_FORMAT_RAW &&
-		    raw_output_format_match_input(fc->atomisp_in_fmt,
-						  pix->pixelformat))
-			return -EINVAL;
-	}
+	if (!fc)
+		fc = atomisp_find_in_fmt_conv(
+			 atomisp_subdev_get_ffmt(&asd->subdev,
+						 NULL, V4L2_SUBDEV_FORMAT_ACTIVE,
+						 ATOMISP_SUBDEV_PAD_SINK)->code);
+	if (!fc)
+		return -EINVAL;
+	if (format->sh_fmt == IA_CSS_FRAME_FORMAT_RAW &&
+	    raw_output_format_match_input(fc->atomisp_in_fmt,
+					  pix->pixelformat))
+		return -EINVAL;
 
 	/*
 	 * Configure viewfinder also when vfpp is disabled: the
diff --git a/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c b/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
index 6fe8b0b7467a..a62a5c0b3c00 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_compat_css20.c
@@ -302,21 +302,6 @@ static void __dump_stream_config(struct atomisp_sub_device *asd,
 			"stream_config.source.port.compression.uncompressed_bits_per_pixel=%d.\n",
 			s_config->source.port.compression.
 			uncompressed_bits_per_pixel);
-	} else if (s_config->mode == IA_CSS_INPUT_MODE_TPG) {
-		dev_dbg(isp->dev, "stream_config.source.tpg.id=%d.\n",
-			s_config->source.tpg.id);
-		dev_dbg(isp->dev, "stream_config.source.tpg.mode=%d.\n",
-			s_config->source.tpg.mode);
-		dev_dbg(isp->dev, "stream_config.source.tpg.x_mask=%d.\n",
-			s_config->source.tpg.x_mask);
-		dev_dbg(isp->dev, "stream_config.source.tpg.x_delta=%d.\n",
-			s_config->source.tpg.x_delta);
-		dev_dbg(isp->dev, "stream_config.source.tpg.y_mask=%d.\n",
-			s_config->source.tpg.y_mask);
-		dev_dbg(isp->dev, "stream_config.source.tpg.y_delta=%d.\n",
-			s_config->source.tpg.y_delta);
-		dev_dbg(isp->dev, "stream_config.source.tpg.xy_mask=%d.\n",
-			s_config->source.tpg.xy_mask);
 	} else if (s_config->mode == IA_CSS_INPUT_MODE_PRBS) {
 		dev_dbg(isp->dev, "stream_config.source.prbs.id=%d.\n",
 			s_config->source.prbs.id);
@@ -1672,26 +1657,12 @@ void atomisp_css_capture_set_mode(struct atomisp_sub_device *asd,
 void atomisp_css_input_set_mode(struct atomisp_sub_device *asd,
 				enum ia_css_input_mode mode)
 {
-	int i;
-	struct atomisp_device *isp = asd->isp;
 	unsigned int size_mem_words;
+	int i;
 
 	for (i = 0; i < ATOMISP_INPUT_STREAM_NUM; i++)
 		asd->stream_env[i].stream_config.mode = mode;
 
-	if (isp->inputs[asd->input_curr].type == TEST_PATTERN) {
-		struct ia_css_stream_config *s_config =
-			    &asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream_config;
-		s_config->mode = IA_CSS_INPUT_MODE_TPG;
-		s_config->source.tpg.mode = IA_CSS_TPG_MODE_CHECKERBOARD;
-		s_config->source.tpg.x_mask = (1 << 4) - 1;
-		s_config->source.tpg.x_delta = -2;
-		s_config->source.tpg.y_mask = (1 << 4) - 1;
-		s_config->source.tpg.y_delta = 3;
-		s_config->source.tpg.xy_mask = (1 << 8) - 1;
-		return;
-	}
-
 	if (mode != IA_CSS_INPUT_MODE_BUFFERED_SENSOR)
 		return;
 
diff --git a/drivers/staging/media/atomisp/pci/atomisp_internal.h b/drivers/staging/media/atomisp/pci/atomisp_internal.h
index c81a1c5f2864..54ab872b91ee 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_internal.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_internal.h
@@ -36,7 +36,6 @@
 
 #include "atomisp_csi2.h"
 #include "atomisp_subdev.h"
-#include "atomisp_tpg.h"
 #include "atomisp_compat.h"
 
 #include "gp_device.h"
@@ -188,7 +187,6 @@ struct atomisp_device {
 	bool pm_only;
 
 	struct atomisp_mipi_csi2_device csi2_port[ATOMISP_CAMERA_NR_PORTS];
-	struct atomisp_tpg_device tpg;
 
 	/* Purpose of mutex is to protect and serialize use of isp data
 	 * structures and css API calls. */
diff --git a/drivers/staging/media/atomisp/pci/atomisp_tpg.c b/drivers/staging/media/atomisp/pci/atomisp_tpg.c
deleted file mode 100644
index 92e61ee90993..000000000000
--- a/drivers/staging/media/atomisp/pci/atomisp_tpg.c
+++ /dev/null
@@ -1,164 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Support for Medifield PNW Camera Imaging ISP subsystem.
- *
- * Copyright (c) 2010 Intel Corporation. All Rights Reserved.
- *
- * Copyright (c) 2010 Silicon Hive www.siliconhive.com.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- *
- */
-
-#include <media/v4l2-event.h>
-#include <media/v4l2-mediabus.h>
-#include "atomisp_internal.h"
-#include "atomisp_tpg.h"
-
-static int tpg_s_stream(struct v4l2_subdev *sd, int enable)
-{
-	return 0;
-}
-
-static int tpg_get_fmt(struct v4l2_subdev *sd,
-		       struct v4l2_subdev_state *sd_state,
-		       struct v4l2_subdev_format *format)
-{
-	/*to fake*/
-	return 0;
-}
-
-static int tpg_set_fmt(struct v4l2_subdev *sd,
-		       struct v4l2_subdev_state *sd_state,
-		       struct v4l2_subdev_format *format)
-{
-	struct v4l2_mbus_framefmt *fmt = &format->format;
-
-	if (format->pad)
-		return -EINVAL;
-	/* only raw8 grbg is supported by TPG */
-	fmt->code = MEDIA_BUS_FMT_SGRBG8_1X8;
-	if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
-		*v4l2_subdev_state_get_format(sd_state, 0) = *fmt;
-		return 0;
-	}
-	return 0;
-}
-
-static int tpg_log_status(struct v4l2_subdev *sd)
-{
-	/*to fake*/
-	return 0;
-}
-
-static int tpg_s_power(struct v4l2_subdev *sd, int on)
-{
-	return 0;
-}
-
-static int tpg_enum_mbus_code(struct v4l2_subdev *sd,
-			      struct v4l2_subdev_state *sd_state,
-			      struct v4l2_subdev_mbus_code_enum *code)
-{
-	/*to fake*/
-	return 0;
-}
-
-static int tpg_enum_frame_size(struct v4l2_subdev *sd,
-			       struct v4l2_subdev_state *sd_state,
-			       struct v4l2_subdev_frame_size_enum *fse)
-{
-	/*to fake*/
-	return 0;
-}
-
-static int tpg_enum_frame_ival(struct v4l2_subdev *sd,
-			       struct v4l2_subdev_state *sd_state,
-			       struct v4l2_subdev_frame_interval_enum *fie)
-{
-	/*to fake*/
-	return 0;
-}
-
-static const struct v4l2_subdev_video_ops tpg_video_ops = {
-	.s_stream = tpg_s_stream,
-};
-
-static const struct v4l2_subdev_core_ops tpg_core_ops = {
-	.log_status = tpg_log_status,
-	.s_power = tpg_s_power,
-};
-
-static const struct v4l2_subdev_pad_ops tpg_pad_ops = {
-	.enum_mbus_code = tpg_enum_mbus_code,
-	.enum_frame_size = tpg_enum_frame_size,
-	.enum_frame_interval = tpg_enum_frame_ival,
-	.get_fmt = tpg_get_fmt,
-	.set_fmt = tpg_set_fmt,
-};
-
-static const struct v4l2_subdev_ops tpg_ops = {
-	.core = &tpg_core_ops,
-	.video = &tpg_video_ops,
-	.pad = &tpg_pad_ops,
-};
-
-void atomisp_tpg_unregister_entities(struct atomisp_tpg_device *tpg)
-{
-	media_entity_cleanup(&tpg->sd.entity);
-	v4l2_device_unregister_subdev(&tpg->sd);
-}
-
-int atomisp_tpg_register_entities(struct atomisp_tpg_device *tpg,
-				  struct v4l2_device *vdev)
-{
-	int ret;
-	/* Register the subdev and video nodes. */
-	ret = v4l2_device_register_subdev(vdev, &tpg->sd);
-	if (ret < 0)
-		goto error;
-
-	return 0;
-
-error:
-	atomisp_tpg_unregister_entities(tpg);
-	return ret;
-}
-
-void atomisp_tpg_cleanup(struct atomisp_device *isp)
-{
-}
-
-int atomisp_tpg_init(struct atomisp_device *isp)
-{
-	struct atomisp_tpg_device *tpg = &isp->tpg;
-	struct v4l2_subdev *sd = &tpg->sd;
-	struct media_pad *pads = tpg->pads;
-	struct media_entity *me = &sd->entity;
-	int ret;
-
-	tpg->isp = isp;
-	v4l2_subdev_init(sd, &tpg_ops);
-	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
-	strscpy(sd->name, "tpg_subdev", sizeof(sd->name));
-	v4l2_set_subdevdata(sd, tpg);
-
-	pads[0].flags = MEDIA_PAD_FL_SINK;
-	me->function = MEDIA_ENT_F_PROC_VIDEO_ISP;
-
-	ret = media_entity_pads_init(me, 1, pads);
-	if (ret < 0)
-		goto fail;
-	return 0;
-fail:
-	atomisp_tpg_cleanup(isp);
-	return ret;
-}
diff --git a/drivers/staging/media/atomisp/pci/atomisp_tpg.h b/drivers/staging/media/atomisp/pci/atomisp_tpg.h
deleted file mode 100644
index 4176e076f63d..000000000000
--- a/drivers/staging/media/atomisp/pci/atomisp_tpg.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Support for Medifield PNW Camera Imaging ISP subsystem.
- *
- * Copyright (c) 2010 Intel Corporation. All Rights Reserved.
- *
- * Copyright (c) 2010 Silicon Hive www.siliconhive.com.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- *
- */
-
-#ifndef __ATOMISP_TPG_H__
-#define __ATOMISP_TPG_H__
-
-#include <media/media-entity.h>
-#include <media/v4l2-subdev.h>
-
-struct atomisp_tpg_device {
-	struct v4l2_subdev sd;
-	struct atomisp_device *isp;
-	struct media_pad pads[1];
-};
-
-void atomisp_tpg_cleanup(struct atomisp_device *isp);
-int atomisp_tpg_init(struct atomisp_device *isp);
-void atomisp_tpg_unregister_entities(struct atomisp_tpg_device *tpg);
-int atomisp_tpg_register_entities(struct atomisp_tpg_device *tpg,
-				  struct v4l2_device *vdev);
-
-#endif /* __ATOMISP_TPG_H__ */
diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
index 809b9c4e7a92..0069b547754d 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
@@ -847,7 +847,6 @@ static void atomisp_unregister_entities(struct atomisp_device *isp)
 	struct v4l2_subdev *sd, *next;
 
 	atomisp_subdev_unregister_entities(&isp->asd);
-	atomisp_tpg_unregister_entities(&isp->tpg);
 	for (i = 0; i < ATOMISP_CAMERA_NR_PORTS; i++)
 		atomisp_mipi_csi2_unregister_entities(&isp->csi2_port[i]);
 
@@ -902,12 +901,6 @@ static int atomisp_register_entities(struct atomisp_device *isp)
 		goto csi_and_subdev_probe_failed;
 	}
 
-	ret = atomisp_tpg_register_entities(&isp->tpg, &isp->v4l2_dev);
-	if (ret < 0) {
-		dev_err(isp->dev, "atomisp_tpg_register_entities\n");
-		goto tpg_register_failed;
-	}
-
 	ret = atomisp_subdev_register_subdev(&isp->asd, &isp->v4l2_dev);
 	if (ret < 0) {
 		dev_err(isp->dev, "atomisp_subdev_register_subdev fail\n");
@@ -917,8 +910,6 @@ static int atomisp_register_entities(struct atomisp_device *isp)
 	return 0;
 
 subdev_register_failed:
-	atomisp_tpg_unregister_entities(&isp->tpg);
-tpg_register_failed:
 	for (i = 0; i < ATOMISP_CAMERA_NR_PORTS; i++)
 		atomisp_mipi_csi2_unregister_entities(&isp->csi2_port[i]);
 csi_and_subdev_probe_failed:
@@ -1077,15 +1068,6 @@ int atomisp_register_device_nodes(struct atomisp_device *isp)
 	else
 		dev_info(isp->dev, "detected %d camera sensors\n", isp->input_cnt);
 
-	if (isp->input_cnt < ATOM_ISP_MAX_INPUTS) {
-		dev_dbg(isp->dev, "TPG detected, camera_cnt: %d\n", isp->input_cnt);
-		isp->inputs[isp->input_cnt].type = TEST_PATTERN;
-		isp->inputs[isp->input_cnt].port = -1;
-		isp->inputs[isp->input_cnt++].camera = &isp->tpg.sd;
-	} else {
-		dev_warn(isp->dev, "too many atomisp inputs, TPG ignored.\n");
-	}
-
 	mutex_lock(&isp->media_dev.graph_mutex);
 	atomisp_setup_input_links(isp);
 	mutex_unlock(&isp->media_dev.graph_mutex);
@@ -1119,12 +1101,6 @@ static int atomisp_initialize_modules(struct atomisp_device *isp)
 		goto error_mipi_csi2;
 	}
 
-	ret = atomisp_tpg_init(isp);
-	if (ret < 0) {
-		dev_err(isp->dev, "tpg initialization failed\n");
-		goto error_tpg;
-	}
-
 	ret = atomisp_subdev_init(isp);
 	if (ret < 0) {
 		dev_err(isp->dev, "ISP subdev initialization failed\n");
@@ -1134,8 +1110,6 @@ static int atomisp_initialize_modules(struct atomisp_device *isp)
 	return 0;
 
 error_isp_subdev:
-error_tpg:
-	atomisp_tpg_cleanup(isp);
 error_mipi_csi2:
 	atomisp_mipi_csi2_cleanup(isp);
 	return ret;
@@ -1143,7 +1117,6 @@ static int atomisp_initialize_modules(struct atomisp_device *isp)
 
 static void atomisp_uninitialize_modules(struct atomisp_device *isp)
 {
-	atomisp_tpg_cleanup(isp);
 	atomisp_mipi_csi2_cleanup(isp);
 }
 
diff --git a/drivers/staging/media/atomisp/pci/hive_isp_css_common/host/input_system.c b/drivers/staging/media/atomisp/pci/hive_isp_css_common/host/input_system.c
index ca1ce6689034..8f2f4e8eddd9 100644
--- a/drivers/staging/media/atomisp/pci/hive_isp_css_common/host/input_system.c
+++ b/drivers/staging/media/atomisp/pci/hive_isp_css_common/host/input_system.c
@@ -426,7 +426,6 @@ static input_system_err_t input_system_configure_channel(
 		case INPUT_SYSTEM_SOURCE_SENSOR:
 			error = input_system_configure_channel_sensor(channel);
 			break;
-		case INPUT_SYSTEM_SOURCE_TPG:
 		case INPUT_SYSTEM_SOURCE_PRBS:
 		case INPUT_SYSTEM_SOURCE_FIFO:
 		default:
@@ -814,7 +813,6 @@ static input_system_err_t configuration_to_registers(void)
 		//...
 		break;
 
-	case INPUT_SYSTEM_SOURCE_TPG:
 	case INPUT_SYSTEM_SOURCE_PRBS:
 	case INPUT_SYSTEM_SOURCE_FIFO:
 		break;
@@ -1065,42 +1063,6 @@ input_system_err_t	input_system_prbs_channel_cfg(
 	return input_system_configure_channel(channel);
 }
 
-input_system_err_t	input_system_tpg_channel_cfg(
-    u32		ch_id,
-    u32		nof_frames,//not used yet
-    u32		x_mask,
-    u32		y_mask,
-    u32		x_delta,
-    u32		y_delta,
-    u32		xy_mask,
-    u32		sync_gen_width,
-    u32		sync_gen_height,
-    u32		sync_gen_hblank_cycles,
-    u32		sync_gen_vblank_cycles,
-    target_cfg2400_t	target
-)
-{
-	channel_cfg_t channel;
-
-	(void)nof_frames;
-
-	channel.ch_id	= ch_id;
-	channel.source_type		= INPUT_SYSTEM_SOURCE_TPG;
-
-	channel.source_cfg.tpg_cfg.x_mask	= x_mask;
-	channel.source_cfg.tpg_cfg.y_mask	= y_mask;
-	channel.source_cfg.tpg_cfg.x_delta	= x_delta;
-	channel.source_cfg.tpg_cfg.y_delta	= y_delta;
-	channel.source_cfg.tpg_cfg.xy_mask	= xy_mask;
-	channel.source_cfg.tpg_cfg.sync_gen_cfg.width		= sync_gen_width;
-	channel.source_cfg.tpg_cfg.sync_gen_cfg.height		= sync_gen_height;
-	channel.source_cfg.tpg_cfg.sync_gen_cfg.hblank_cycles	= sync_gen_hblank_cycles;
-	channel.source_cfg.tpg_cfg.sync_gen_cfg.vblank_cycles	= sync_gen_vblank_cycles;
-
-	channel.target_cfg	= target;
-	return input_system_configure_channel(channel);
-}
-
 // MW: Don't use system specific names, (even in system specific files) "cfg2400" -> cfg
 input_system_err_t	input_system_gpfifo_channel_cfg(
     u32		ch_id,
diff --git a/drivers/staging/media/atomisp/pci/ia_css.h b/drivers/staging/media/atomisp/pci/ia_css.h
index d83e1ae5b0b3..421056287853 100644
--- a/drivers/staging/media/atomisp/pci/ia_css.h
+++ b/drivers/staging/media/atomisp/pci/ia_css.h
@@ -42,7 +42,6 @@
 #include "ia_css_properties.h"
 #include "ia_css_stream_format.h"
 #include "ia_css_stream_public.h"
-#include "ia_css_tpg.h"
 #include "ia_css_version.h"
 #include "ia_css_mmu.h"
 #include "ia_css_morph.h"
diff --git a/drivers/staging/media/atomisp/pci/ia_css_stream_public.h b/drivers/staging/media/atomisp/pci/ia_css_stream_public.h
index 47846ece8d64..888f54d8495e 100644
--- a/drivers/staging/media/atomisp/pci/ia_css_stream_public.h
+++ b/drivers/staging/media/atomisp/pci/ia_css_stream_public.h
@@ -24,7 +24,6 @@
 #include "ia_css_types.h"
 #include "ia_css_pipe_public.h"
 #include "ia_css_metadata.h"
-#include "ia_css_tpg.h"
 #include "ia_css_prbs.h"
 #include "ia_css_input_port.h"
 
@@ -34,7 +33,6 @@
 enum ia_css_input_mode {
 	IA_CSS_INPUT_MODE_SENSOR, /** data from sensor */
 	IA_CSS_INPUT_MODE_FIFO,   /** data from input-fifo */
-	IA_CSS_INPUT_MODE_TPG,    /** data from test-pattern generator */
 	IA_CSS_INPUT_MODE_PRBS,   /** data from pseudo-random bit stream */
 	IA_CSS_INPUT_MODE_MEMORY, /** data from a frame in memory */
 	IA_CSS_INPUT_MODE_BUFFERED_SENSOR /** data is sent through mipi buffer */
@@ -91,7 +89,6 @@ struct ia_css_stream_config {
 	enum ia_css_input_mode    mode; /** Input mode */
 	union {
 		struct ia_css_input_port  port; /** Port, for sensor only. */
-		struct ia_css_tpg_config  tpg;  /** TPG configuration */
 		struct ia_css_prbs_config prbs; /** PRBS configuration */
 	} source; /** Source of input data */
 	unsigned int	      channel_id; /** Channel on which input data
diff --git a/drivers/staging/media/atomisp/pci/ia_css_tpg.h b/drivers/staging/media/atomisp/pci/ia_css_tpg.h
deleted file mode 100644
index 8c744bedb0a6..000000000000
--- a/drivers/staging/media/atomisp/pci/ia_css_tpg.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Support for Intel Camera Imaging ISP subsystem.
- * Copyright (c) 2015, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- */
-
-#ifndef __IA_CSS_TPG_H
-#define __IA_CSS_TPG_H
-
-/* @file
- * This file contains support for the test pattern generator (TPG)
- */
-
-/* Enumerate the TPG IDs.
- */
-enum ia_css_tpg_id {
-	IA_CSS_TPG_ID0,
-	IA_CSS_TPG_ID1,
-	IA_CSS_TPG_ID2
-};
-
-/**
- * Maximum number of TPG IDs.
- *
- * Make sure the value of this define gets changed to reflect the correct
- * number of ia_css_tpg_id enum if you add/delete an item in the enum.
- */
-#define N_CSS_TPG_IDS (IA_CSS_TPG_ID2 + 1)
-
-/* Enumerate the TPG modes.
- */
-enum ia_css_tpg_mode {
-	IA_CSS_TPG_MODE_RAMP,
-	IA_CSS_TPG_MODE_CHECKERBOARD,
-	IA_CSS_TPG_MODE_FRAME_BASED_COLOR,
-	IA_CSS_TPG_MODE_MONO
-};
-
-/* @brief Configure the test pattern generator.
- *
- * Configure the Test Pattern Generator, the way these values are used to
- * generate the pattern can be seen in the HRT extension for the test pattern
- * generator:
- * devices/test_pat_gen/hrt/include/test_pat_gen.h: hrt_calc_tpg_data().
- *
- * This interface is deprecated, it is not portable -> move to input system API
- *
-@code
-unsigned int test_pattern_value(unsigned int x, unsigned int y)
-{
- unsigned int x_val, y_val;
- if (x_delta > 0) (x_val = (x << x_delta) & x_mask;
- else (x_val = (x >> -x_delta) & x_mask;
- if (y_delta > 0) (y_val = (y << y_delta) & y_mask;
- else (y_val = (y >> -y_delta) & x_mask;
- return (x_val + y_val) & xy_mask;
-}
-@endcode
- */
-struct ia_css_tpg_config {
-	enum ia_css_tpg_id   id;
-	enum ia_css_tpg_mode mode;
-	unsigned int         x_mask;
-	int                  x_delta;
-	unsigned int         y_mask;
-	int                  y_delta;
-	unsigned int         xy_mask;
-};
-
-#endif /* __IA_CSS_TPG_H */
diff --git a/drivers/staging/media/atomisp/pci/isp2400_input_system_global.h b/drivers/staging/media/atomisp/pci/isp2400_input_system_global.h
index 3ff61faf0621..c00acf764b93 100644
--- a/drivers/staging/media/atomisp/pci/isp2400_input_system_global.h
+++ b/drivers/staging/media/atomisp/pci/isp2400_input_system_global.h
@@ -35,7 +35,6 @@ typedef enum {
 typedef enum {
 	INPUT_SYSTEM_SOURCE_SENSOR = 0,
 	INPUT_SYSTEM_SOURCE_FIFO,
-	INPUT_SYSTEM_SOURCE_TPG,
 	INPUT_SYSTEM_SOURCE_PRBS,
 	INPUT_SYSTEM_SOURCE_MEMORY,
 	N_INPUT_SYSTEM_SOURCE
diff --git a/drivers/staging/media/atomisp/pci/isp2400_input_system_public.h b/drivers/staging/media/atomisp/pci/isp2400_input_system_public.h
index 523c948923f3..03b7ab7a70d9 100644
--- a/drivers/staging/media/atomisp/pci/isp2400_input_system_public.h
+++ b/drivers/staging/media/atomisp/pci/isp2400_input_system_public.h
@@ -308,21 +308,6 @@ input_system_err_t	input_system_prbs_channel_cfg(
     target_cfg2400_t	target
 );
 
-input_system_err_t	input_system_tpg_channel_cfg(
-    u32		ch_id,
-    u32		nof_frames,//not used yet
-    u32		x_mask,
-    u32		y_mask,
-    u32		x_delta,
-    u32		y_delta,
-    u32		xy_mask,
-    u32		sync_gen_width,
-    u32		sync_gen_height,
-    u32		sync_gen_hblank_cycles,
-    u32		sync_gen_vblank_cycles,
-    target_cfg2400_t	target
-);
-
 input_system_err_t	input_system_gpfifo_channel_cfg(
     u32		ch_id,
     u32		nof_frames,
diff --git a/drivers/staging/media/atomisp/pci/isp2401_input_system_global.h b/drivers/staging/media/atomisp/pci/isp2401_input_system_global.h
index e3c86069b390..b116be415074 100644
--- a/drivers/staging/media/atomisp/pci/isp2401_input_system_global.h
+++ b/drivers/staging/media/atomisp/pci/isp2401_input_system_global.h
@@ -39,7 +39,6 @@
 typedef enum {
 	INPUT_SYSTEM_SOURCE_TYPE_UNDEFINED = 0,
 	INPUT_SYSTEM_SOURCE_TYPE_SENSOR,
-	INPUT_SYSTEM_SOURCE_TYPE_TPG,
 	INPUT_SYSTEM_SOURCE_TYPE_PRBS,
 	N_INPUT_SYSTEM_SOURCE_TYPE
 } input_system_source_type_t;
diff --git a/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c b/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c
index 3807b31bb98f..9982e77716a7 100644
--- a/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c
+++ b/drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c
@@ -1549,23 +1549,6 @@ ia_css_debug_dump_stream_config_source(
 		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "compression: %d\n",
 				    config->source.port.compression.type);
 		break;
-	case IA_CSS_INPUT_MODE_TPG:
-		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "source.tpg\n");
-		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "id: %d\n",
-				    config->source.tpg.id);
-		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "mode: %d\n",
-				    config->source.tpg.mode);
-		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "x_mask: 0x%x\n",
-				    config->source.tpg.x_mask);
-		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "x_delta: %d\n",
-				    config->source.tpg.x_delta);
-		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "y_mask: 0x%x\n",
-				    config->source.tpg.y_mask);
-		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "y_delta: %d\n",
-				    config->source.tpg.y_delta);
-		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "xy_mask: 0x%x\n",
-				    config->source.tpg.xy_mask);
-		break;
 	case IA_CSS_INPUT_MODE_PRBS:
 		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "source.prbs\n");
 		ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "id: %d\n",
diff --git a/drivers/staging/media/atomisp/pci/runtime/ifmtr/src/ifmtr.c b/drivers/staging/media/atomisp/pci/runtime/ifmtr/src/ifmtr.c
index 86254888f676..7b5603e4e173 100644
--- a/drivers/staging/media/atomisp/pci/runtime/ifmtr/src/ifmtr.c
+++ b/drivers/staging/media/atomisp/pci/runtime/ifmtr/src/ifmtr.c
@@ -382,17 +382,6 @@ int ia_css_ifmtr_configure(struct ia_css_stream_config *config,
 
 	vectors_per_buffer = buffer_height * buffer_width / ISP_VEC_NELEMS;
 
-	if (config->mode == IA_CSS_INPUT_MODE_TPG &&
-	    ((binary && binary->info->sp.pipeline.mode == IA_CSS_BINARY_MODE_VIDEO) ||
-	     (!binary))) {
-		/* !binary -> sp raw copy pipe */
-		/* workaround for TPG in video mode */
-		start_line = 0;
-		start_column = 0;
-		cropped_height -= start_line;
-		width_a -= start_column;
-	}
-
 	if_a_config.start_line = start_line;
 	if_a_config.start_column = start_column;
 	if_a_config.left_padding = left_padding / deinterleaving;
diff --git a/drivers/staging/media/atomisp/pci/runtime/isys/src/virtual_isys.c b/drivers/staging/media/atomisp/pci/runtime/isys/src/virtual_isys.c
index 269a81190577..52483498239d 100644
--- a/drivers/staging/media/atomisp/pci/runtime/isys/src/virtual_isys.c
+++ b/drivers/staging/media/atomisp/pci/runtime/isys/src/virtual_isys.c
@@ -96,12 +96,6 @@ static void release_be_lut_entry(
     csi_mipi_packet_type_t		packet_type,
     csi_rx_backend_lut_entry_t	*entry);
 
-static bool calculate_tpg_cfg(
-    input_system_channel_t		*channel,
-    input_system_input_port_t	*input_port,
-    isp2401_input_system_cfg_t		*isys_cfg,
-    pixelgen_tpg_cfg_t		*cfg);
-
 static bool calculate_prbs_cfg(
     input_system_channel_t		*channel,
     input_system_input_port_t	*input_port,
@@ -517,13 +511,6 @@ static bool calculate_input_system_input_port_cfg(
 			rc &= calculate_be_cfg(input_port, isys_cfg, true,
 					       &input_port_cfg->csi_rx_cfg.md_backend_cfg);
 		break;
-	case INPUT_SYSTEM_SOURCE_TYPE_TPG:
-		rc = calculate_tpg_cfg(
-			 channel,
-			 input_port,
-			 isys_cfg,
-			 &input_port_cfg->pixelgen_cfg.tpg_cfg);
-		break;
 	case INPUT_SYSTEM_SOURCE_TYPE_PRBS:
 		rc = calculate_prbs_cfg(
 			 channel,
@@ -633,17 +620,6 @@ static void release_be_lut_entry(
 	ia_css_isys_csi_rx_lut_rmgr_release(backend, packet_type, entry);
 }
 
-static bool calculate_tpg_cfg(
-    input_system_channel_t		*channel,
-    input_system_input_port_t	*input_port,
-    isp2401_input_system_cfg_t		*isys_cfg,
-    pixelgen_tpg_cfg_t		*cfg)
-{
-	memcpy(cfg, &isys_cfg->tpg_port_attr, sizeof(pixelgen_tpg_cfg_t));
-
-	return true;
-}
-
 static bool calculate_prbs_cfg(
     input_system_channel_t		*channel,
     input_system_input_port_t	*input_port,
@@ -703,9 +679,7 @@ static bool calculate_stream2mmio_cfg(
 	cfg->bits_per_pixel = metadata ? isys_cfg->metadata.bits_per_pixel :
 			      isys_cfg->input_port_resolution.bits_per_pixel;
 
-	cfg->enable_blocking =
-	    ((isys_cfg->mode == INPUT_SYSTEM_SOURCE_TYPE_TPG) ||
-	     (isys_cfg->mode == INPUT_SYSTEM_SOURCE_TYPE_PRBS));
+	cfg->enable_blocking = isys_cfg->mode == INPUT_SYSTEM_SOURCE_TYPE_PRBS;
 
 	return true;
 }
diff --git a/drivers/staging/media/atomisp/pci/sh_css.c b/drivers/staging/media/atomisp/pci/sh_css.c
index 8c30191b21a7..22c8cdcb2eb8 100644
--- a/drivers/staging/media/atomisp/pci/sh_css.c
+++ b/drivers/staging/media/atomisp/pci/sh_css.c
@@ -462,9 +462,6 @@ ia_css_stream_input_format_bits_per_pixel(struct ia_css_stream *stream)
 	return bpp;
 }
 
-/* TODO: move define to proper file in tools */
-#define GP_ISEL_TPG_MODE 0x90058
-
 static int
 sh_css_config_input_network_2400(struct ia_css_stream *stream)
 {
@@ -500,8 +497,7 @@ sh_css_config_input_network_2400(struct ia_css_stream *stream)
 			return err;
 	}
 
-	if (stream->config.mode == IA_CSS_INPUT_MODE_TPG ||
-	    stream->config.mode == IA_CSS_INPUT_MODE_PRBS) {
+	if (stream->config.mode == IA_CSS_INPUT_MODE_PRBS) {
 		unsigned int hblank_cycles = 100,
 		vblank_lines = 6,
 		width,
@@ -513,8 +509,6 @@ sh_css_config_input_network_2400(struct ia_css_stream *stream)
 		vblank_cycles = vblank_lines * (width + hblank_cycles);
 		sh_css_sp_configure_sync_gen(width, height, hblank_cycles,
 					     vblank_cycles);
-		if (pipe->stream->config.mode == IA_CSS_INPUT_MODE_TPG)
-			ia_css_device_store_uint32(GP_ISEL_TPG_MODE, 0);
 	}
 	ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
 			    "sh_css_config_input_network() leave:\n");
@@ -654,16 +648,6 @@ static bool sh_css_translate_stream_cfg_to_input_system_input_port_id(
 
 	rc = true;
 	switch (stream_cfg->mode) {
-	case IA_CSS_INPUT_MODE_TPG:
-
-		if (stream_cfg->source.tpg.id == IA_CSS_TPG_ID0)
-			isys_stream_descr->input_port_id = INPUT_SYSTEM_PIXELGEN_PORT0_ID;
-		else if (stream_cfg->source.tpg.id == IA_CSS_TPG_ID1)
-			isys_stream_descr->input_port_id = INPUT_SYSTEM_PIXELGEN_PORT1_ID;
-		else if (stream_cfg->source.tpg.id == IA_CSS_TPG_ID2)
-			isys_stream_descr->input_port_id = INPUT_SYSTEM_PIXELGEN_PORT2_ID;
-
-		break;
 	case IA_CSS_INPUT_MODE_PRBS:
 
 		if (stream_cfg->source.prbs.id == IA_CSS_PRBS_ID0)
@@ -700,11 +684,6 @@ static bool sh_css_translate_stream_cfg_to_input_system_input_port_type(
 
 	rc = true;
 	switch (stream_cfg->mode) {
-	case IA_CSS_INPUT_MODE_TPG:
-
-		isys_stream_descr->mode = INPUT_SYSTEM_SOURCE_TYPE_TPG;
-
-		break;
 	case IA_CSS_INPUT_MODE_PRBS:
 
 		isys_stream_descr->mode = INPUT_SYSTEM_SOURCE_TYPE_PRBS;
@@ -733,54 +712,6 @@ static bool sh_css_translate_stream_cfg_to_input_system_input_port_attr(
 
 	rc = true;
 	switch (stream_cfg->mode) {
-	case IA_CSS_INPUT_MODE_TPG:
-		if (stream_cfg->source.tpg.mode == IA_CSS_TPG_MODE_RAMP)
-			isys_stream_descr->tpg_port_attr.mode = PIXELGEN_TPG_MODE_RAMP;
-		else if (stream_cfg->source.tpg.mode == IA_CSS_TPG_MODE_CHECKERBOARD)
-			isys_stream_descr->tpg_port_attr.mode = PIXELGEN_TPG_MODE_CHBO;
-		else if (stream_cfg->source.tpg.mode == IA_CSS_TPG_MODE_MONO)
-			isys_stream_descr->tpg_port_attr.mode = PIXELGEN_TPG_MODE_MONO;
-		else
-			rc = false;
-
-		/*
-		 * TODO
-		 * - Make "color_cfg" as part of "ia_css_tpg_config".
-		 */
-		isys_stream_descr->tpg_port_attr.color_cfg.R1 = 51;
-		isys_stream_descr->tpg_port_attr.color_cfg.G1 = 102;
-		isys_stream_descr->tpg_port_attr.color_cfg.B1 = 255;
-		isys_stream_descr->tpg_port_attr.color_cfg.R2 = 0;
-		isys_stream_descr->tpg_port_attr.color_cfg.G2 = 100;
-		isys_stream_descr->tpg_port_attr.color_cfg.B2 = 160;
-
-		isys_stream_descr->tpg_port_attr.mask_cfg.h_mask =
-		    stream_cfg->source.tpg.x_mask;
-		isys_stream_descr->tpg_port_attr.mask_cfg.v_mask =
-		    stream_cfg->source.tpg.y_mask;
-		isys_stream_descr->tpg_port_attr.mask_cfg.hv_mask =
-		    stream_cfg->source.tpg.xy_mask;
-
-		isys_stream_descr->tpg_port_attr.delta_cfg.h_delta =
-		    stream_cfg->source.tpg.x_delta;
-		isys_stream_descr->tpg_port_attr.delta_cfg.v_delta =
-		    stream_cfg->source.tpg.y_delta;
-
-		/*
-		 * TODO
-		 * - Make "sync_gen_cfg" as part of "ia_css_tpg_config".
-		 */
-		isys_stream_descr->tpg_port_attr.sync_gen_cfg.hblank_cycles = 100;
-		isys_stream_descr->tpg_port_attr.sync_gen_cfg.vblank_cycles = 100;
-		isys_stream_descr->tpg_port_attr.sync_gen_cfg.pixels_per_clock =
-		    stream_cfg->pixels_per_clock;
-		isys_stream_descr->tpg_port_attr.sync_gen_cfg.nr_of_frames = (uint32_t)~(0x0);
-		isys_stream_descr->tpg_port_attr.sync_gen_cfg.pixels_per_line =
-		    stream_cfg->isys_config[IA_CSS_STREAM_DEFAULT_ISYS_STREAM_IDX].input_res.width;
-		isys_stream_descr->tpg_port_attr.sync_gen_cfg.lines_per_frame =
-		    stream_cfg->isys_config[IA_CSS_STREAM_DEFAULT_ISYS_STREAM_IDX].input_res.height;
-
-		break;
 	case IA_CSS_INPUT_MODE_PRBS:
 
 		isys_stream_descr->prbs_port_attr.seed0 = stream_cfg->source.prbs.seed;
@@ -8153,23 +8084,6 @@ ia_css_stream_create(const struct ia_css_stream_config *stream_config,
 		if (!IS_ISP2401)
 			ia_css_stream_configure_rx(curr_stream);
 		break;
-	case IA_CSS_INPUT_MODE_TPG:
-		if (!IS_ISP2401) {
-			IA_CSS_LOG("tpg_configuration: x_mask=%d, y_mask=%d, x_delta=%d, y_delta=%d, xy_mask=%d",
-				   curr_stream->config.source.tpg.x_mask,
-				   curr_stream->config.source.tpg.y_mask,
-				   curr_stream->config.source.tpg.x_delta,
-				   curr_stream->config.source.tpg.y_delta,
-				   curr_stream->config.source.tpg.xy_mask);
-
-			sh_css_sp_configure_tpg(
-			    curr_stream->config.source.tpg.x_mask,
-			    curr_stream->config.source.tpg.y_mask,
-			    curr_stream->config.source.tpg.x_delta,
-			    curr_stream->config.source.tpg.y_delta,
-			    curr_stream->config.source.tpg.xy_mask);
-		}
-		break;
 	case IA_CSS_INPUT_MODE_PRBS:
 		if (!IS_ISP2401) {
 			IA_CSS_LOG("mode prbs");
diff --git a/drivers/staging/media/atomisp/pci/sh_css_internal.h b/drivers/staging/media/atomisp/pci/sh_css_internal.h
index 2349eb4d3767..bef2b8c5132b 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_internal.h
+++ b/drivers/staging/media/atomisp/pci/sh_css_internal.h
@@ -360,7 +360,6 @@ struct sh_css_sp_config {
 	} input_formatter;
 
 	sync_generator_cfg_t	sync_gen;
-	tpg_cfg_t		tpg;
 	prbs_cfg_t		prbs;
 	input_system_cfg_t	input_circuit;
 	u8			input_circuit_cfg_changed;
diff --git a/drivers/staging/media/atomisp/pci/sh_css_sp.c b/drivers/staging/media/atomisp/pci/sh_css_sp.c
index 55f9c89c6932..29e5bee78c20 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_sp.c
+++ b/drivers/staging/media/atomisp/pci/sh_css_sp.c
@@ -669,20 +669,6 @@ sh_css_sp_configure_sync_gen(int width, int height,
 	sh_css_sp_group.config.sync_gen.vblank_cycles = vblank_cycles;
 }
 
-void
-sh_css_sp_configure_tpg(int x_mask,
-			int y_mask,
-			int x_delta,
-			int y_delta,
-			int xy_mask)
-{
-	sh_css_sp_group.config.tpg.x_mask  = x_mask;
-	sh_css_sp_group.config.tpg.y_mask  = y_mask;
-	sh_css_sp_group.config.tpg.x_delta = x_delta;
-	sh_css_sp_group.config.tpg.y_delta = y_delta;
-	sh_css_sp_group.config.tpg.xy_mask = xy_mask;
-}
-
 void
 sh_css_sp_configure_prbs(int seed)
 {
diff --git a/drivers/staging/media/atomisp/pci/sh_css_sp.h b/drivers/staging/media/atomisp/pci/sh_css_sp.h
index 36b693bd916a..c12f57f5befc 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_sp.h
+++ b/drivers/staging/media/atomisp/pci/sh_css_sp.h
@@ -164,13 +164,6 @@ sh_css_sp_configure_sync_gen(int width,
 			     int hblank_cycles,
 			     int vblank_cycles);
 
-void
-sh_css_sp_configure_tpg(int x_mask,
-			int y_mask,
-			int x_delta,
-			int y_delta,
-			int xy_mask);
-
 void
 sh_css_sp_configure_prbs(int seed);
 
-- 
2.44.0

[PATCH 12/23] media: atomisp: Remove input_port_ID_t

[Hans de Goede]

Change the single, unexpected user of CSI_PORT0_ID

	for (port = CSI_PORT0_ID; port < N_CSI_PORTS; port++)

to

	for (port = 0; port < N_CSI_PORTS; port++) {

matching all the other for-loops iterating over the ports in
the same file.

And remove the now fully unused input_port_ID_t enum type.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/staging/media/atomisp/pci/sh_css_mipi.c   |  2 +-
 drivers/staging/media/atomisp/pci/system_global.h | 12 ------------
 2 files changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/sh_css_mipi.c b/drivers/staging/media/atomisp/pci/sh_css_mipi.c
index 6e11fd771938..80f0395cc560 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_mipi.c
+++ b/drivers/staging/media/atomisp/pci/sh_css_mipi.c
@@ -489,7 +489,7 @@ free_mipi_frames(struct ia_css_pipe *pipe)
 		}
 	} else { /* pipe ==NULL */
 		/* AM TEMP: free-ing all mipi buffers just like a legacy code. */
-		for (port = CSI_PORT0_ID; port < N_CSI_PORTS; port++) {
+		for (port = 0; port < N_CSI_PORTS; port++) {
 			unsigned int i;
 
 			for (i = 0; i < my_css.num_mipi_frames[port]; i++) {
diff --git a/drivers/staging/media/atomisp/pci/system_global.h b/drivers/staging/media/atomisp/pci/system_global.h
index 060b924023ec..e8a29f73d67a 100644
--- a/drivers/staging/media/atomisp/pci/system_global.h
+++ b/drivers/staging/media/atomisp/pci/system_global.h
@@ -201,18 +201,6 @@ enum mipi_port_id {
 
 #define	N_RX_CHANNEL_ID		4
 
-/* Generic port enumeration with an internal port type ID */
-typedef enum {
-	CSI_PORT0_ID = 0,
-	CSI_PORT1_ID,
-	CSI_PORT2_ID,
-	TPG_PORT0_ID,
-	PRBS_PORT0_ID,
-	FIFO_PORT0_ID,
-	MEMORY_PORT0_ID,
-	N_INPUT_PORT_ID
-} input_port_ID_t;
-
 typedef enum {
 	CAPTURE_UNIT0_ID = 0,
 	CAPTURE_UNIT1_ID,
-- 
2.44.0

[PATCH 13/23] media: atomisp: Drop the atomisp custom lm3554 flash driver

[Hans de Goede]

Drop the atomisp custom lm3554 flash driver, support for flash drivers
using the custom atomisp flash interface is going to be removed from
the atomisp driver.

If flash supports for the lm3554 turns out to be necessary on some
atomisp devices in the future then this should be re-implemented
using the new include/linux/led-class-flash.h APIs.

The atomisp specific lm3554 driver could still be usable as a reference
for how to use / driver the lm3554 for a future re-implementation
using standardized APIs, but for that it can be retrieved from
the git history.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/staging/media/atomisp/i2c/Kconfig     |  15 -
 drivers/staging/media/atomisp/i2c/Makefile    |   5 -
 .../media/atomisp/i2c/atomisp-lm3554.c        | 955 ------------------
 .../media/atomisp/include/media/lm3554.h      | 132 ---
 4 files changed, 1107 deletions(-)
 delete mode 100644 drivers/staging/media/atomisp/i2c/atomisp-lm3554.c
 delete mode 100644 drivers/staging/media/atomisp/include/media/lm3554.h

diff --git a/drivers/staging/media/atomisp/i2c/Kconfig b/drivers/staging/media/atomisp/i2c/Kconfig
index f62d183b787f..8710c483015c 100644
--- a/drivers/staging/media/atomisp/i2c/Kconfig
+++ b/drivers/staging/media/atomisp/i2c/Kconfig
@@ -56,18 +56,3 @@ config VIDEO_ATOMISP_GC0310
 	help
 	  This is a Video4Linux2 sensor-level driver for the Galaxycore
 	  GC0310 0.3MP sensor.
-
-#
-# Kconfig for flash drivers
-#
-
-config VIDEO_ATOMISP_LM3554
-       tristate "LM3554 flash light driver"
-	depends on ACPI
-       depends on VIDEO_DEV && I2C
-	help
-	 This is a Video4Linux2 sub-dev driver for the LM3554
-	 flash light driver.
-
-	 To compile this driver as a module, choose M here: the
-	 module will be called lm3554
diff --git a/drivers/staging/media/atomisp/i2c/Makefile b/drivers/staging/media/atomisp/i2c/Makefile
index e946cc91e5ff..3073cfa75ecf 100644
--- a/drivers/staging/media/atomisp/i2c/Makefile
+++ b/drivers/staging/media/atomisp/i2c/Makefile
@@ -9,8 +9,3 @@ obj-$(CONFIG_VIDEO_ATOMISP_OV2722)     += atomisp-ov2722.o
 obj-$(CONFIG_VIDEO_ATOMISP_GC0310)     += atomisp-gc0310.o
 
 obj-$(CONFIG_VIDEO_ATOMISP_MSRLIST_HELPER) += atomisp-libmsrlisthelper.o
-
-# Makefile for flash drivers
-#
-
-obj-$(CONFIG_VIDEO_ATOMISP_LM3554) += atomisp-lm3554.o
diff --git a/drivers/staging/media/atomisp/i2c/atomisp-lm3554.c b/drivers/staging/media/atomisp/i2c/atomisp-lm3554.c
deleted file mode 100644
index cf5d9317b11a..000000000000
--- a/drivers/staging/media/atomisp/i2c/atomisp-lm3554.c
+++ /dev/null
@@ -1,955 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * LED flash driver for LM3554
- *
- * Copyright (c) 2010-2012 Intel Corporation. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- *
- */
-#include <linux/module.h>
-#include <linux/i2c.h>
-#include <linux/mutex.h>
-#include <linux/delay.h>
-#include <linux/gpio/consumer.h>
-#include <linux/slab.h>
-
-#include "../include/media/lm3554.h"
-#include <media/v4l2-ctrls.h>
-#include <media/v4l2-device.h>
-#include <linux/acpi.h>
-#include "../include/linux/atomisp_gmin_platform.h"
-#include "../include/linux/atomisp.h"
-
-/* Registers */
-
-#define LM3554_TORCH_BRIGHTNESS_REG	0xA0
-#define LM3554_TORCH_MODE_SHIFT		0
-#define LM3554_TORCH_CURRENT_SHIFT	3
-#define LM3554_INDICATOR_CURRENT_SHIFT	6
-
-#define LM3554_FLASH_BRIGHTNESS_REG	0xB0
-#define LM3554_FLASH_MODE_SHIFT		0
-#define LM3554_FLASH_CURRENT_SHIFT	3
-#define LM3554_STROBE_SENSITIVITY_SHIFT	7
-
-#define LM3554_FLASH_DURATION_REG	0xC0
-#define LM3554_FLASH_TIMEOUT_SHIFT	0
-#define LM3554_CURRENT_LIMIT_SHIFT	5
-
-#define LM3554_FLAGS_REG		0xD0
-#define LM3554_FLAG_TIMEOUT		BIT(0)
-#define LM3554_FLAG_THERMAL_SHUTDOWN	BIT(1)
-#define LM3554_FLAG_LED_FAULT		BIT(2)
-#define LM3554_FLAG_TX1_INTERRUPT	BIT(3)
-#define LM3554_FLAG_TX2_INTERRUPT	BIT(4)
-#define LM3554_FLAG_LED_THERMAL_FAULT	BIT(5)
-#define LM3554_FLAG_UNUSED		BIT(6)
-#define LM3554_FLAG_INPUT_VOLTAGE_LOW	BIT(7)
-
-#define LM3554_CONFIG_REG_1		0xE0
-#define LM3554_ENVM_TX2_SHIFT		5
-#define LM3554_TX2_POLARITY_SHIFT	6
-
-struct lm3554 {
-	struct v4l2_subdev sd;
-
-	struct mutex power_lock;
-	struct v4l2_ctrl_handler ctrl_handler;
-	int power_count;
-
-	unsigned int mode;
-	int timeout;
-	u8 torch_current;
-	u8 indicator_current;
-	u8 flash_current;
-
-	struct timer_list flash_off_delay;
-	struct lm3554_platform_data *pdata;
-};
-
-#define to_lm3554(p_sd)	container_of(p_sd, struct lm3554, sd)
-
-/* Return negative errno else zero on success */
-static int lm3554_write(struct lm3554 *flash, u8 addr, u8 val)
-{
-	struct i2c_client *client = v4l2_get_subdevdata(&flash->sd);
-	int ret;
-
-	ret = i2c_smbus_write_byte_data(client, addr, val);
-
-	dev_dbg(&client->dev, "Write Addr:%02X Val:%02X %s\n", addr, val,
-		ret < 0 ? "fail" : "ok");
-
-	return ret;
-}
-
-/* Return negative errno else a data byte received from the device. */
-static int lm3554_read(struct lm3554 *flash, u8 addr)
-{
-	struct i2c_client *client = v4l2_get_subdevdata(&flash->sd);
-	int ret;
-
-	ret = i2c_smbus_read_byte_data(client, addr);
-
-	dev_dbg(&client->dev, "Read Addr:%02X Val:%02X %s\n", addr, ret,
-		ret < 0 ? "fail" : "ok");
-
-	return ret;
-}
-
-/* -----------------------------------------------------------------------------
- * Hardware configuration
- */
-
-static int lm3554_set_mode(struct lm3554 *flash, unsigned int mode)
-{
-	u8 val;
-	int ret;
-
-	val = (mode << LM3554_FLASH_MODE_SHIFT) |
-	      (flash->flash_current << LM3554_FLASH_CURRENT_SHIFT);
-
-	ret = lm3554_write(flash, LM3554_FLASH_BRIGHTNESS_REG, val);
-	if (ret == 0)
-		flash->mode = mode;
-	return ret;
-}
-
-static int lm3554_set_torch(struct lm3554 *flash)
-{
-	u8 val;
-
-	val = (flash->mode << LM3554_TORCH_MODE_SHIFT) |
-	      (flash->torch_current << LM3554_TORCH_CURRENT_SHIFT) |
-	      (flash->indicator_current << LM3554_INDICATOR_CURRENT_SHIFT);
-
-	return lm3554_write(flash, LM3554_TORCH_BRIGHTNESS_REG, val);
-}
-
-static int lm3554_set_flash(struct lm3554 *flash)
-{
-	u8 val;
-
-	val = (flash->mode << LM3554_FLASH_MODE_SHIFT) |
-	      (flash->flash_current << LM3554_FLASH_CURRENT_SHIFT);
-
-	return lm3554_write(flash, LM3554_FLASH_BRIGHTNESS_REG, val);
-}
-
-static int lm3554_set_duration(struct lm3554 *flash)
-{
-	u8 val;
-
-	val = (flash->timeout << LM3554_FLASH_TIMEOUT_SHIFT) |
-	      (flash->pdata->current_limit << LM3554_CURRENT_LIMIT_SHIFT);
-
-	return lm3554_write(flash, LM3554_FLASH_DURATION_REG, val);
-}
-
-static int lm3554_set_config1(struct lm3554 *flash)
-{
-	u8 val;
-
-	val = (flash->pdata->envm_tx2 << LM3554_ENVM_TX2_SHIFT) |
-	      (flash->pdata->tx2_polarity << LM3554_TX2_POLARITY_SHIFT);
-	return lm3554_write(flash, LM3554_CONFIG_REG_1, val);
-}
-
-/* -----------------------------------------------------------------------------
- * Hardware trigger
- */
-static void lm3554_flash_off_delay(struct timer_list *t)
-{
-	struct lm3554 *flash = from_timer(flash, t, flash_off_delay);
-	struct lm3554_platform_data *pdata = flash->pdata;
-
-	gpiod_set_value(pdata->gpio_strobe, 0);
-}
-
-static int lm3554_hw_strobe(struct i2c_client *client, bool strobe)
-{
-	int ret, timer_pending;
-	struct v4l2_subdev *sd = i2c_get_clientdata(client);
-	struct lm3554 *flash = to_lm3554(sd);
-	struct lm3554_platform_data *pdata = flash->pdata;
-
-	/*
-	 * An abnormal high flash current is observed when strobe off the
-	 * flash. Workaround here is firstly set flash current to lower level,
-	 * wait a short moment, and then strobe off the flash.
-	 */
-
-	timer_pending = del_timer_sync(&flash->flash_off_delay);
-
-	/* Flash off */
-	if (!strobe) {
-		/* set current to 70mA and wait a while */
-		ret = lm3554_write(flash, LM3554_FLASH_BRIGHTNESS_REG, 0);
-		if (ret < 0)
-			goto err;
-		mod_timer(&flash->flash_off_delay,
-			  jiffies + msecs_to_jiffies(LM3554_TIMER_DELAY));
-		return 0;
-	}
-
-	/* Flash on */
-
-	/*
-	 * If timer is killed before run, flash is not strobe off,
-	 * so must strobe off here
-	 */
-	if (timer_pending)
-		gpiod_set_value(pdata->gpio_strobe, 0);
-
-	/* Restore flash current settings */
-	ret = lm3554_set_flash(flash);
-	if (ret < 0)
-		goto err;
-
-	/* Strobe on Flash */
-	gpiod_set_value(pdata->gpio_strobe, 1);
-
-	return 0;
-err:
-	dev_err(&client->dev, "failed to %s flash strobe (%d)\n",
-		strobe ? "on" : "off", ret);
-	return ret;
-}
-
-/* -----------------------------------------------------------------------------
- * V4L2 controls
- */
-
-static int lm3554_read_status(struct lm3554 *flash)
-{
-	int ret;
-	struct i2c_client *client = v4l2_get_subdevdata(&flash->sd);
-
-	/* NOTE: reading register clear fault status */
-	ret = lm3554_read(flash, LM3554_FLAGS_REG);
-	if (ret < 0)
-		return ret;
-
-	/*
-	 * Accordingly to datasheet we read back '1' in bit 6.
-	 * Clear it first.
-	 */
-	ret &= ~LM3554_FLAG_UNUSED;
-
-	/*
-	 * Do not take TX1/TX2 signal as an error
-	 * because MSIC will not turn off flash, but turn to
-	 * torch mode according to gsm modem signal by hardware.
-	 */
-	ret &= ~(LM3554_FLAG_TX1_INTERRUPT | LM3554_FLAG_TX2_INTERRUPT);
-
-	if (ret > 0)
-		dev_dbg(&client->dev, "LM3554 flag status: %02x\n", ret);
-
-	return ret;
-}
-
-static int lm3554_s_flash_timeout(struct v4l2_subdev *sd, u32 val)
-{
-	struct lm3554 *flash = to_lm3554(sd);
-
-	val = clamp(val, LM3554_MIN_TIMEOUT, LM3554_MAX_TIMEOUT);
-	val = val / LM3554_TIMEOUT_STEPSIZE - 1;
-
-	flash->timeout = val;
-
-	return lm3554_set_duration(flash);
-}
-
-static int lm3554_g_flash_timeout(struct v4l2_subdev *sd, s32 *val)
-{
-	struct lm3554 *flash = to_lm3554(sd);
-
-	*val = (u32)(flash->timeout + 1) * LM3554_TIMEOUT_STEPSIZE;
-
-	return 0;
-}
-
-static int lm3554_s_flash_intensity(struct v4l2_subdev *sd, u32 intensity)
-{
-	struct lm3554 *flash = to_lm3554(sd);
-
-	intensity = LM3554_CLAMP_PERCENTAGE(intensity);
-	intensity = LM3554_PERCENT_TO_VALUE(intensity, LM3554_FLASH_STEP);
-
-	flash->flash_current = intensity;
-
-	return lm3554_set_flash(flash);
-}
-
-static int lm3554_g_flash_intensity(struct v4l2_subdev *sd, s32 *val)
-{
-	struct lm3554 *flash = to_lm3554(sd);
-
-	*val = LM3554_VALUE_TO_PERCENT((u32)flash->flash_current,
-				       LM3554_FLASH_STEP);
-
-	return 0;
-}
-
-static int lm3554_s_torch_intensity(struct v4l2_subdev *sd, u32 intensity)
-{
-	struct lm3554 *flash = to_lm3554(sd);
-
-	intensity = LM3554_CLAMP_PERCENTAGE(intensity);
-	intensity = LM3554_PERCENT_TO_VALUE(intensity, LM3554_TORCH_STEP);
-
-	flash->torch_current = intensity;
-
-	return lm3554_set_torch(flash);
-}
-
-static int lm3554_g_torch_intensity(struct v4l2_subdev *sd, s32 *val)
-{
-	struct lm3554 *flash = to_lm3554(sd);
-
-	*val = LM3554_VALUE_TO_PERCENT((u32)flash->torch_current,
-				       LM3554_TORCH_STEP);
-
-	return 0;
-}
-
-static int lm3554_s_indicator_intensity(struct v4l2_subdev *sd, u32 intensity)
-{
-	struct lm3554 *flash = to_lm3554(sd);
-
-	intensity = LM3554_CLAMP_PERCENTAGE(intensity);
-	intensity = LM3554_PERCENT_TO_VALUE(intensity, LM3554_INDICATOR_STEP);
-
-	flash->indicator_current = intensity;
-
-	return lm3554_set_torch(flash);
-}
-
-static int lm3554_g_indicator_intensity(struct v4l2_subdev *sd, s32 *val)
-{
-	struct lm3554 *flash = to_lm3554(sd);
-
-	*val = LM3554_VALUE_TO_PERCENT((u32)flash->indicator_current,
-				       LM3554_INDICATOR_STEP);
-
-	return 0;
-}
-
-static int lm3554_s_flash_strobe(struct v4l2_subdev *sd, u32 val)
-{
-	struct i2c_client *client = v4l2_get_subdevdata(sd);
-
-	return lm3554_hw_strobe(client, val);
-}
-
-static int lm3554_s_flash_mode(struct v4l2_subdev *sd, u32 new_mode)
-{
-	struct lm3554 *flash = to_lm3554(sd);
-	unsigned int mode;
-
-	switch (new_mode) {
-	case ATOMISP_FLASH_MODE_OFF:
-		mode = LM3554_MODE_SHUTDOWN;
-		break;
-	case ATOMISP_FLASH_MODE_FLASH:
-		mode = LM3554_MODE_FLASH;
-		break;
-	case ATOMISP_FLASH_MODE_INDICATOR:
-		mode = LM3554_MODE_INDICATOR;
-		break;
-	case ATOMISP_FLASH_MODE_TORCH:
-		mode = LM3554_MODE_TORCH;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return lm3554_set_mode(flash, mode);
-}
-
-static int lm3554_g_flash_mode(struct v4l2_subdev *sd, s32 *val)
-{
-	struct lm3554 *flash = to_lm3554(sd);
-	*val = flash->mode;
-	return 0;
-}
-
-static int lm3554_g_flash_status(struct v4l2_subdev *sd, s32 *val)
-{
-	struct lm3554 *flash = to_lm3554(sd);
-	int value;
-
-	value = lm3554_read_status(flash);
-	if (value < 0)
-		return value;
-
-	if (value & LM3554_FLAG_TIMEOUT)
-		*val = ATOMISP_FLASH_STATUS_TIMEOUT;
-	else if (value > 0)
-		*val = ATOMISP_FLASH_STATUS_HW_ERROR;
-	else
-		*val = ATOMISP_FLASH_STATUS_OK;
-
-	return 0;
-}
-
-static int lm3554_g_flash_status_register(struct v4l2_subdev *sd, s32 *val)
-{
-	struct lm3554 *flash = to_lm3554(sd);
-	int ret;
-
-	ret = lm3554_read(flash, LM3554_FLAGS_REG);
-
-	if (ret < 0)
-		return ret;
-
-	*val = ret;
-	return 0;
-}
-
-static int lm3554_s_ctrl(struct v4l2_ctrl *ctrl)
-{
-	struct lm3554 *dev =
-	    container_of(ctrl->handler, struct lm3554, ctrl_handler);
-	int ret = 0;
-
-	switch (ctrl->id) {
-	case V4L2_CID_FLASH_TIMEOUT:
-		ret = lm3554_s_flash_timeout(&dev->sd, ctrl->val);
-		break;
-	case V4L2_CID_FLASH_INTENSITY:
-		ret = lm3554_s_flash_intensity(&dev->sd, ctrl->val);
-		break;
-	case V4L2_CID_FLASH_TORCH_INTENSITY:
-		ret = lm3554_s_torch_intensity(&dev->sd, ctrl->val);
-		break;
-	case V4L2_CID_FLASH_INDICATOR_INTENSITY:
-		ret = lm3554_s_indicator_intensity(&dev->sd, ctrl->val);
-		break;
-	case V4L2_CID_FLASH_STROBE:
-		ret = lm3554_s_flash_strobe(&dev->sd, ctrl->val);
-		break;
-	case V4L2_CID_FLASH_MODE:
-		ret = lm3554_s_flash_mode(&dev->sd, ctrl->val);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-	return ret;
-}
-
-static int lm3554_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
-{
-	struct lm3554 *dev =
-	    container_of(ctrl->handler, struct lm3554, ctrl_handler);
-	int ret = 0;
-
-	switch (ctrl->id) {
-	case V4L2_CID_FLASH_TIMEOUT:
-		ret = lm3554_g_flash_timeout(&dev->sd, &ctrl->val);
-		break;
-	case V4L2_CID_FLASH_INTENSITY:
-		ret = lm3554_g_flash_intensity(&dev->sd, &ctrl->val);
-		break;
-	case V4L2_CID_FLASH_TORCH_INTENSITY:
-		ret = lm3554_g_torch_intensity(&dev->sd, &ctrl->val);
-		break;
-	case V4L2_CID_FLASH_INDICATOR_INTENSITY:
-		ret = lm3554_g_indicator_intensity(&dev->sd, &ctrl->val);
-		break;
-	case V4L2_CID_FLASH_MODE:
-		ret = lm3554_g_flash_mode(&dev->sd, &ctrl->val);
-		break;
-	case V4L2_CID_FLASH_STATUS:
-		ret = lm3554_g_flash_status(&dev->sd, &ctrl->val);
-		break;
-	case V4L2_CID_FLASH_STATUS_REGISTER:
-		ret = lm3554_g_flash_status_register(&dev->sd, &ctrl->val);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	return ret;
-}
-
-static const struct v4l2_ctrl_ops ctrl_ops = {
-	.s_ctrl = lm3554_s_ctrl,
-	.g_volatile_ctrl = lm3554_g_volatile_ctrl
-};
-
-static const struct v4l2_ctrl_config lm3554_controls[] = {
-	{
-		.ops = &ctrl_ops,
-		.id = V4L2_CID_FLASH_TIMEOUT,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "Flash Timeout",
-		.min = 0x0,
-		.max = LM3554_MAX_TIMEOUT,
-		.step = 0x01,
-		.def = LM3554_DEFAULT_TIMEOUT,
-		.flags = 0,
-	},
-	{
-		.ops = &ctrl_ops,
-		.id = V4L2_CID_FLASH_INTENSITY,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "Flash Intensity",
-		.min = LM3554_MIN_PERCENT,
-		.max = LM3554_MAX_PERCENT,
-		.step = 0x01,
-		.def = LM3554_FLASH_DEFAULT_BRIGHTNESS,
-		.flags = 0,
-	},
-	{
-		.ops = &ctrl_ops,
-		.id = V4L2_CID_FLASH_TORCH_INTENSITY,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "Torch Intensity",
-		.min = LM3554_MIN_PERCENT,
-		.max = LM3554_MAX_PERCENT,
-		.step = 0x01,
-		.def = LM3554_TORCH_DEFAULT_BRIGHTNESS,
-		.flags = 0,
-	},
-	{
-		.ops = &ctrl_ops,
-		.id = V4L2_CID_FLASH_INDICATOR_INTENSITY,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "Indicator Intensity",
-		.min = LM3554_MIN_PERCENT,
-		.max = LM3554_MAX_PERCENT,
-		.step = 0x01,
-		.def = LM3554_INDICATOR_DEFAULT_BRIGHTNESS,
-		.flags = 0,
-	},
-	{
-		.ops = &ctrl_ops,
-		.id = V4L2_CID_FLASH_STROBE,
-		.type = V4L2_CTRL_TYPE_BOOLEAN,
-		.name = "Flash Strobe",
-		.min = 0,
-		.max = 1,
-		.step = 1,
-		.def = 0,
-		.flags = 0,
-	},
-	{
-		.ops = &ctrl_ops,
-		.id = V4L2_CID_FLASH_MODE,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "Flash Mode",
-		.min = 0,
-		.max = 100,
-		.step = 1,
-		.def = ATOMISP_FLASH_MODE_OFF,
-		.flags = 0,
-	},
-	{
-		.ops = &ctrl_ops,
-		.id = V4L2_CID_FLASH_STATUS,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "Flash Status",
-		.min = ATOMISP_FLASH_STATUS_OK,
-		.max = ATOMISP_FLASH_STATUS_TIMEOUT,
-		.step = 1,
-		.def = ATOMISP_FLASH_STATUS_OK,
-		.flags = 0,
-	},
-	{
-		.ops = &ctrl_ops,
-		.id = V4L2_CID_FLASH_STATUS_REGISTER,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "Flash Status Register",
-		.min = 0,
-		.max = 255,
-		.step = 1,
-		.def = 0,
-		.flags = 0,
-	},
-};
-
-/* -----------------------------------------------------------------------------
- * V4L2 subdev core operations
- */
-
-/* Put device into known state. */
-static int lm3554_setup(struct lm3554 *flash)
-{
-	struct i2c_client *client = v4l2_get_subdevdata(&flash->sd);
-	int ret;
-
-	/* clear the flags register */
-	ret = lm3554_read(flash, LM3554_FLAGS_REG);
-	if (ret < 0)
-		return ret;
-
-	dev_dbg(&client->dev, "Fault info: %02x\n", ret);
-
-	ret = lm3554_set_config1(flash);
-	if (ret < 0)
-		return ret;
-
-	ret = lm3554_set_duration(flash);
-	if (ret < 0)
-		return ret;
-
-	ret = lm3554_set_torch(flash);
-	if (ret < 0)
-		return ret;
-
-	ret = lm3554_set_flash(flash);
-	if (ret < 0)
-		return ret;
-
-	/* read status */
-	ret = lm3554_read_status(flash);
-	if (ret < 0)
-		return ret;
-
-	return ret ? -EIO : 0;
-}
-
-static int __lm3554_s_power(struct lm3554 *flash, int power)
-{
-	struct lm3554_platform_data *pdata = flash->pdata;
-	int ret;
-
-	/*initialize flash driver*/
-	gpiod_set_value(pdata->gpio_reset, power);
-	usleep_range(100, 100 + 1);
-
-	if (power) {
-		/* Setup default values. This makes sure that the chip
-		 * is in a known state.
-		 */
-		ret = lm3554_setup(flash);
-		if (ret < 0) {
-			__lm3554_s_power(flash, 0);
-			return ret;
-		}
-	}
-
-	return 0;
-}
-
-static int lm3554_s_power(struct v4l2_subdev *sd, int power)
-{
-	struct lm3554 *flash = to_lm3554(sd);
-	int ret = 0;
-
-	mutex_lock(&flash->power_lock);
-
-	if (flash->power_count == !power) {
-		ret = __lm3554_s_power(flash, !!power);
-		if (ret < 0)
-			goto done;
-	}
-
-	flash->power_count += power ? 1 : -1;
-	WARN_ON(flash->power_count < 0);
-
-done:
-	mutex_unlock(&flash->power_lock);
-	return ret;
-}
-
-static const struct v4l2_subdev_core_ops lm3554_core_ops = {
-	.s_power = lm3554_s_power,
-};
-
-static const struct v4l2_subdev_ops lm3554_ops = {
-	.core = &lm3554_core_ops,
-};
-
-static int lm3554_detect(struct v4l2_subdev *sd)
-{
-	struct i2c_client *client = v4l2_get_subdevdata(sd);
-	struct i2c_adapter *adapter = client->adapter;
-	struct lm3554 *flash = to_lm3554(sd);
-	int ret;
-
-	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
-		dev_err(&client->dev, "lm3554_detect i2c error\n");
-		return -ENODEV;
-	}
-
-	/* Power up the flash driver and reset it */
-	ret = lm3554_s_power(&flash->sd, 1);
-	if (ret < 0) {
-		dev_err(&client->dev, "Failed to power on lm3554 LED flash\n");
-	} else {
-		dev_dbg(&client->dev, "Successfully detected lm3554 LED flash\n");
-		lm3554_s_power(&flash->sd, 0);
-	}
-
-	return ret;
-}
-
-static int lm3554_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
-{
-	return lm3554_s_power(sd, 1);
-}
-
-static int lm3554_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
-{
-	return lm3554_s_power(sd, 0);
-}
-
-static const struct v4l2_subdev_internal_ops lm3554_internal_ops = {
-	.registered = lm3554_detect,
-	.open = lm3554_open,
-	.close = lm3554_close,
-};
-
-/* -----------------------------------------------------------------------------
- *  I2C driver
- */
-#ifdef CONFIG_PM
-
-static int lm3554_suspend(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct v4l2_subdev *subdev = i2c_get_clientdata(client);
-	struct lm3554 *flash = to_lm3554(subdev);
-	int rval;
-
-	if (flash->power_count == 0)
-		return 0;
-
-	rval = __lm3554_s_power(flash, 0);
-
-	dev_dbg(&client->dev, "Suspend %s\n", rval < 0 ? "failed" : "ok");
-
-	return rval;
-}
-
-static int lm3554_resume(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct v4l2_subdev *subdev = i2c_get_clientdata(client);
-	struct lm3554 *flash = to_lm3554(subdev);
-	int rval;
-
-	if (flash->power_count == 0)
-		return 0;
-
-	rval = __lm3554_s_power(flash, 1);
-
-	dev_dbg(&client->dev, "Resume %s\n", rval < 0 ? "fail" : "ok");
-
-	return rval;
-}
-
-#else
-
-#define lm3554_suspend NULL
-#define lm3554_resume  NULL
-
-#endif /* CONFIG_PM */
-
-static int lm3554_gpio_init(struct i2c_client *client)
-{
-	struct v4l2_subdev *sd = i2c_get_clientdata(client);
-	struct lm3554 *flash = to_lm3554(sd);
-	struct lm3554_platform_data *pdata = flash->pdata;
-	int ret;
-
-	if (!pdata->gpio_reset)
-		return -EINVAL;
-
-	ret = gpiod_direction_output(pdata->gpio_reset, 0);
-	if (ret < 0)
-		return ret;
-
-	if (!pdata->gpio_strobe)
-		return -EINVAL;
-
-	ret = gpiod_direction_output(pdata->gpio_strobe, 0);
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
-
-static void lm3554_gpio_uninit(struct i2c_client *client)
-{
-	struct v4l2_subdev *sd = i2c_get_clientdata(client);
-	struct lm3554 *flash = to_lm3554(sd);
-	struct lm3554_platform_data *pdata = flash->pdata;
-	int ret;
-
-	ret = gpiod_direction_output(pdata->gpio_strobe, 0);
-	if (ret < 0)
-		dev_err(&client->dev,
-			"gpio request/direction_output fail for gpio_strobe");
-
-	ret = gpiod_direction_output(pdata->gpio_reset, 0);
-	if (ret < 0)
-		dev_err(&client->dev,
-			"gpio request/direction_output fail for gpio_reset");
-}
-
-static void *lm3554_platform_data_func(struct i2c_client *client)
-{
-	static struct lm3554_platform_data platform_data;
-
-	platform_data.gpio_reset = gpiod_get_index(&client->dev,
-						   NULL, 2, GPIOD_OUT_LOW);
-	if (IS_ERR(platform_data.gpio_reset))
-		return ERR_CAST(platform_data.gpio_reset);
-	platform_data.gpio_strobe = gpiod_get_index(&client->dev,
-						    NULL, 0, GPIOD_OUT_LOW);
-	if (IS_ERR(platform_data.gpio_strobe))
-		return ERR_CAST(platform_data.gpio_strobe);
-	platform_data.gpio_torch = gpiod_get_index(&client->dev,
-						   NULL, 1, GPIOD_OUT_LOW);
-	if (IS_ERR(platform_data.gpio_torch))
-		return ERR_CAST(platform_data.gpio_torch);
-
-	/* Set to TX2 mode, then ENVM/TX2 pin is a power amplifier sync input:
-	 * ENVM/TX pin asserted, flash forced into torch;
-	 * ENVM/TX pin desserted, flash set back;
-	 */
-	platform_data.envm_tx2 = 1;
-	platform_data.tx2_polarity = 0;
-
-	/* set peak current limit to be 1000mA */
-	platform_data.current_limit = 0;
-
-	return &platform_data;
-}
-
-static int lm3554_probe(struct i2c_client *client)
-{
-	int err = 0;
-	struct lm3554 *flash;
-	unsigned int i;
-
-	flash = kzalloc(sizeof(*flash), GFP_KERNEL);
-	if (!flash)
-		return -ENOMEM;
-
-	flash->pdata = lm3554_platform_data_func(client);
-	if (IS_ERR(flash->pdata)) {
-		err = PTR_ERR(flash->pdata);
-		goto free_flash;
-	}
-
-	v4l2_i2c_subdev_init(&flash->sd, client, &lm3554_ops);
-	flash->sd.internal_ops = &lm3554_internal_ops;
-	flash->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
-	flash->mode = ATOMISP_FLASH_MODE_OFF;
-	flash->timeout = LM3554_MAX_TIMEOUT / LM3554_TIMEOUT_STEPSIZE - 1;
-	err =
-	    v4l2_ctrl_handler_init(&flash->ctrl_handler,
-				   ARRAY_SIZE(lm3554_controls));
-	if (err) {
-		dev_err(&client->dev, "error initialize a ctrl_handler.\n");
-		goto unregister_subdev;
-	}
-
-	for (i = 0; i < ARRAY_SIZE(lm3554_controls); i++)
-		v4l2_ctrl_new_custom(&flash->ctrl_handler, &lm3554_controls[i],
-				     NULL);
-
-	if (flash->ctrl_handler.error) {
-		dev_err(&client->dev, "ctrl_handler error.\n");
-		err = flash->ctrl_handler.error;
-		goto free_handler;
-	}
-
-	flash->sd.ctrl_handler = &flash->ctrl_handler;
-	err = media_entity_pads_init(&flash->sd.entity, 0, NULL);
-	if (err) {
-		dev_err(&client->dev, "error initialize a media entity.\n");
-		goto free_handler;
-	}
-
-	flash->sd.entity.function = MEDIA_ENT_F_FLASH;
-
-	mutex_init(&flash->power_lock);
-
-	timer_setup(&flash->flash_off_delay, lm3554_flash_off_delay, 0);
-
-	err = lm3554_gpio_init(client);
-	if (err) {
-		dev_err(&client->dev, "gpio request/direction_output fail.\n");
-		goto cleanup_media;
-	}
-
-	err = atomisp_register_i2c_module(&flash->sd, NULL, LED_FLASH);
-	if (err) {
-		dev_err(&client->dev, "fail to register atomisp i2c module.\n");
-		goto uninit_gpio;
-	}
-
-	return 0;
-
-uninit_gpio:
-	lm3554_gpio_uninit(client);
-cleanup_media:
-	media_entity_cleanup(&flash->sd.entity);
-free_handler:
-	v4l2_ctrl_handler_free(&flash->ctrl_handler);
-unregister_subdev:
-	v4l2_device_unregister_subdev(&flash->sd);
-free_flash:
-	kfree(flash);
-
-	return err;
-}
-
-static void lm3554_remove(struct i2c_client *client)
-{
-	struct v4l2_subdev *sd = i2c_get_clientdata(client);
-	struct lm3554 *flash = to_lm3554(sd);
-
-	media_entity_cleanup(&flash->sd.entity);
-	v4l2_ctrl_handler_free(&flash->ctrl_handler);
-	v4l2_device_unregister_subdev(sd);
-
-	atomisp_gmin_remove_subdev(sd);
-
-	timer_shutdown_sync(&flash->flash_off_delay);
-
-	lm3554_gpio_uninit(client);
-
-	kfree(flash);
-}
-
-static const struct dev_pm_ops lm3554_pm_ops = {
-	.suspend = lm3554_suspend,
-	.resume = lm3554_resume,
-};
-
-static const struct acpi_device_id lm3554_acpi_match[] = {
-	{ "INTCF1C" },
-	{},
-};
-MODULE_DEVICE_TABLE(acpi, lm3554_acpi_match);
-
-static struct i2c_driver lm3554_driver = {
-	.driver = {
-		.name = "lm3554",
-		.pm   = &lm3554_pm_ops,
-		.acpi_match_table = lm3554_acpi_match,
-	},
-	.probe = lm3554_probe,
-	.remove = lm3554_remove,
-};
-module_i2c_driver(lm3554_driver);
-
-MODULE_AUTHOR("Jing Tao <jing.tao@intel.com>");
-MODULE_DESCRIPTION("LED flash driver for LM3554");
-MODULE_LICENSE("GPL");
diff --git a/drivers/staging/media/atomisp/include/media/lm3554.h b/drivers/staging/media/atomisp/include/media/lm3554.h
deleted file mode 100644
index 711b7d7c9950..000000000000
--- a/drivers/staging/media/atomisp/include/media/lm3554.h
+++ /dev/null
@@ -1,132 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * include/media/lm3554.h
- *
- * Copyright (c) 2010-2012 Intel Corporation. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- *
- */
-#ifndef _LM3554_H_
-#define _LM3554_H_
-
-#include <linux/gpio/consumer.h>
-#include <linux/videodev2.h>
-#include <media/v4l2-subdev.h>
-
-#define LM3554_ID      3554
-
-#define	v4l2_queryctrl_entry_integer(_id, _name,\
-		_minimum, _maximum, _step, \
-		_default_value, _flags)	\
-	{\
-		.id = (_id), \
-		.type = V4L2_CTRL_TYPE_INTEGER, \
-		.name = _name, \
-		.minimum = (_minimum), \
-		.maximum = (_maximum), \
-		.step = (_step), \
-		.default_value = (_default_value),\
-		.flags = (_flags),\
-	}
-#define	v4l2_queryctrl_entry_boolean(_id, _name,\
-		_default_value, _flags)	\
-	{\
-		.id = (_id), \
-		.type = V4L2_CTRL_TYPE_BOOLEAN, \
-		.name = _name, \
-		.minimum = 0, \
-		.maximum = 1, \
-		.step = 1, \
-		.default_value = (_default_value),\
-		.flags = (_flags),\
-	}
-
-#define	s_ctrl_id_entry_integer(_id, _name, \
-		_minimum, _maximum, _step, \
-		_default_value, _flags, \
-		_s_ctrl, _g_ctrl)	\
-	{\
-		.qc = v4l2_queryctrl_entry_integer(_id, _name,\
-				_minimum, _maximum, _step,\
-				_default_value, _flags), \
-		.s_ctrl = _s_ctrl, \
-		.g_ctrl = _g_ctrl, \
-	}
-
-#define	s_ctrl_id_entry_boolean(_id, _name, \
-		_default_value, _flags, \
-		_s_ctrl, _g_ctrl)	\
-	{\
-		.qc = v4l2_queryctrl_entry_boolean(_id, _name,\
-				_default_value, _flags), \
-		.s_ctrl = _s_ctrl, \
-		.g_ctrl = _g_ctrl, \
-	}
-
-/* Value settings for Flash Time-out Duration*/
-#define LM3554_DEFAULT_TIMEOUT          512U
-#define LM3554_MIN_TIMEOUT              32U
-#define LM3554_MAX_TIMEOUT              1024U
-#define LM3554_TIMEOUT_STEPSIZE         32U
-
-/* Flash modes */
-#define LM3554_MODE_SHUTDOWN            0
-#define LM3554_MODE_INDICATOR           1
-#define LM3554_MODE_TORCH               2
-#define LM3554_MODE_FLASH               3
-
-/* timer delay time */
-#define LM3554_TIMER_DELAY		5
-
-/* Percentage <-> value macros */
-#define LM3554_MIN_PERCENT                   0U
-#define LM3554_MAX_PERCENT                   100U
-#define LM3554_CLAMP_PERCENTAGE(val) \
-	clamp(val, LM3554_MIN_PERCENT, LM3554_MAX_PERCENT)
-
-#define LM3554_VALUE_TO_PERCENT(v, step)     (((((unsigned long)(v)) * (step)) + 50) / 100)
-#define LM3554_PERCENT_TO_VALUE(p, step)     (((((unsigned long)(p)) * 100) + (step >> 1)) / (step))
-
-/* Product specific limits
- * TODO: get these from platform data */
-#define LM3554_FLASH_MAX_LVL   0x0F /* 1191mA */
-
-/* Flash brightness, input is percentage, output is [0..15] */
-#define LM3554_FLASH_STEP	\
-	((100ul * (LM3554_MAX_PERCENT) + ((LM3554_FLASH_MAX_LVL) >> 1)) / ((LM3554_FLASH_MAX_LVL)))
-#define LM3554_FLASH_DEFAULT_BRIGHTNESS \
-	LM3554_VALUE_TO_PERCENT(13, LM3554_FLASH_STEP)
-
-/* Torch brightness, input is percentage, output is [0..7] */
-#define LM3554_TORCH_STEP                    1250
-#define LM3554_TORCH_DEFAULT_BRIGHTNESS \
-	LM3554_VALUE_TO_PERCENT(2, LM3554_TORCH_STEP)
-
-/* Indicator brightness, input is percentage, output is [0..3] */
-#define LM3554_INDICATOR_STEP                2500
-#define LM3554_INDICATOR_DEFAULT_BRIGHTNESS \
-	LM3554_VALUE_TO_PERCENT(1, LM3554_INDICATOR_STEP)
-
-/*
- * lm3554_platform_data - Flash controller platform data
- */
-struct lm3554_platform_data {
-	struct gpio_desc *gpio_torch;
-	struct gpio_desc *gpio_strobe;
-	struct gpio_desc *gpio_reset;
-
-	unsigned int current_limit;
-	unsigned int envm_tx2;
-	unsigned int tx2_polarity;
-};
-
-#endif /* _LM3554_H_ */
-- 
2.44.0

[PATCH 14/23] media: atomisp: Drop custom flash support

[Hans de Goede]

Remove the custom flash handling from the atomisp driver. There are only
very few Bay Trail / Cherry Trail devices with flash and if those will
ever get supported then this should be done through the new standard
include/linux/led-class-flash.h APIs instead of with atomisp specific
custom APIs.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 .../media/atomisp/include/linux/atomisp.h     |  42 -------
 .../atomisp/include/linux/atomisp_platform.h  |   1 -
 .../staging/media/atomisp/pci/atomisp_cmd.c   | 117 +-----------------
 .../staging/media/atomisp/pci/atomisp_cmd.h   |   4 -
 .../staging/media/atomisp/pci/atomisp_fops.c  |  14 ---
 .../media/atomisp/pci/atomisp_internal.h      |   1 -
 .../staging/media/atomisp/pci/atomisp_ioctl.c |  61 ---------
 .../media/atomisp/pci/atomisp_subdev.h        |  13 --
 .../staging/media/atomisp/pci/atomisp_v4l2.c  |   7 --
 .../media/atomisp/pci/ia_css_frame_public.h   |   8 --
 .../media/atomisp/pci/ia_css_stream_public.h  |  14 ---
 drivers/staging/media/atomisp/pci/sh_css.c    |  33 -----
 12 files changed, 2 insertions(+), 313 deletions(-)

diff --git a/drivers/staging/media/atomisp/include/linux/atomisp.h b/drivers/staging/media/atomisp/include/linux/atomisp.h
index b2735a008052..db0c1b87c9ef 100644
--- a/drivers/staging/media/atomisp/include/linux/atomisp.h
+++ b/drivers/staging/media/atomisp/include/linux/atomisp.h
@@ -614,26 +614,6 @@ enum atomisp_camera_port {
 	ATOMISP_CAMERA_NR_PORTS
 };
 
-/* Flash modes. Default is off.
- * Setting a flash to TORCH or INDICATOR mode will automatically
- * turn it on. Setting it to FLASH mode will not turn on the flash
- * until the FLASH_STROBE command is sent. */
-enum atomisp_flash_mode {
-	ATOMISP_FLASH_MODE_OFF,
-	ATOMISP_FLASH_MODE_FLASH,
-	ATOMISP_FLASH_MODE_TORCH,
-	ATOMISP_FLASH_MODE_INDICATOR,
-};
-
-/* Flash statuses, used by atomisp driver to check before starting
- * flash and after having started flash. */
-enum atomisp_flash_status {
-	ATOMISP_FLASH_STATUS_OK,
-	ATOMISP_FLASH_STATUS_HW_ERROR,
-	ATOMISP_FLASH_STATUS_INTERRUPTED,
-	ATOMISP_FLASH_STATUS_TIMEOUT,
-};
-
 /* Frame status. This is used to detect corrupted frames and flash
  * exposed frames. Usually, the first 2 frames coming out of the sensor
  * are corrupted. When using flash, the frame before and the frame after
@@ -661,7 +641,6 @@ enum atomisp_ext_isp_id {
 	EXT_ISP_CID_AF_STATUS,
 	EXT_ISP_CID_GET_AF_MODE,
 	EXT_ISP_CID_CAPTURE_BURST,
-	EXT_ISP_CID_FLASH_MODE,
 	EXT_ISP_CID_ZOOM,
 	EXT_ISP_CID_SHOT_MODE
 };
@@ -694,12 +673,6 @@ enum atomisp_burst_capture_options {
 	EXT_ISP_BURST_CAPTURE_CTRL_STOP
 };
 
-#define EXT_ISP_FLASH_MODE_OFF		0
-#define EXT_ISP_FLASH_MODE_ON		1
-#define EXT_ISP_FLASH_MODE_AUTO		2
-#define EXT_ISP_LED_TORCH_OFF		3
-#define EXT_ISP_LED_TORCH_ON		4
-
 #define EXT_ISP_SHOT_MODE_AUTO		0
 #define EXT_ISP_SHOT_MODE_BEAUTY_FACE	1
 #define EXT_ISP_SHOT_MODE_BEST_PHOTO	2
@@ -894,18 +867,6 @@ enum atomisp_burst_capture_options {
  * Exposure, Flash and privacy (indicator) light controls, to be upstreamed */
 #define V4L2_CID_CAMERA_LASTP1             (V4L2_CID_CAMERA_CLASS_BASE + 1024)
 
-/* Flash related CIDs, see also:
- * http://linuxtv.org/downloads/v4l-dvb-apis/extended-controls.html\
- * #flash-controls */
-
-/* Request a number of flash-exposed frames. The frame status can be
- * found in the reserved field in the v4l2_buffer struct. */
-#define V4L2_CID_REQUEST_FLASH             (V4L2_CID_CAMERA_LASTP1 + 3)
-/* Query flash driver status. See enum atomisp_flash_status above. */
-#define V4L2_CID_FLASH_STATUS              (V4L2_CID_CAMERA_LASTP1 + 5)
-/* Set the flash mode (see enum atomisp_flash_mode) */
-#define V4L2_CID_FLASH_MODE                (V4L2_CID_CAMERA_LASTP1 + 10)
-
 #define V4L2_CID_RUN_MODE			(V4L2_CID_CAMERA_LASTP1 + 20)
 #define ATOMISP_RUN_MODE_VIDEO			1
 #define ATOMISP_RUN_MODE_STILL_CAPTURE		2
@@ -925,9 +886,6 @@ enum atomisp_burst_capture_options {
 #define ATOMISP_VFPP_DISABLE_SCALER		1
 #define ATOMISP_VFPP_DISABLE_LOWLAT		2
 
-/* Query real flash status register value */
-#define V4L2_CID_FLASH_STATUS_REGISTER  (V4L2_CID_CAMERA_LASTP1 + 26)
-
 #define V4L2_CID_START_ZSL_CAPTURE	(V4L2_CID_CAMERA_LASTP1 + 28)
 /* Lock and unlock raw buffer */
 #define V4L2_CID_ENABLE_RAW_BUFFER_LOCK (V4L2_CID_CAMERA_LASTP1 + 29)
diff --git a/drivers/staging/media/atomisp/include/linux/atomisp_platform.h b/drivers/staging/media/atomisp/include/linux/atomisp_platform.h
index 63dd7236e3a8..8060db0e0c5f 100644
--- a/drivers/staging/media/atomisp/include/linux/atomisp_platform.h
+++ b/drivers/staging/media/atomisp/include/linux/atomisp_platform.h
@@ -111,7 +111,6 @@ enum atomisp_input_format {
 
 enum intel_v4l2_subdev_type {
 	RAW_CAMERA = 1,
-	LED_FLASH = 2,
 };
 
 struct intel_v4l2_subdev_id {
diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index 4505261a563f..f5a578a9c588 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -61,14 +61,6 @@
 #include "ia_css_debug.h"
 #include "bits.h"
 
-/* We should never need to run the flash for more than 2 frames.
- * At 15fps this means 133ms. We set the timeout a bit longer.
- * Each flash driver is supposed to set its own timeout, but
- * just in case someone else changed the timeout, we set it
- * here to make sure we don't damage the flash hardware.
- */
-#define FLASH_TIMEOUT 800 /* ms */
-
 union host {
 	struct {
 		void *kernel_ptr;
@@ -677,7 +669,6 @@ void atomisp_buf_done(struct atomisp_sub_device *asd, int error,
 	struct atomisp_metadata_buf *md_buf = NULL, *_md_buf_tmp, *md_iter;
 	enum atomisp_metadata_type md_type;
 	struct atomisp_device *isp = asd->isp;
-	struct v4l2_control ctrl;
 	int i, err;
 
 	lockdep_assert_held(&isp->mutex);
@@ -792,19 +783,6 @@ void atomisp_buf_done(struct atomisp_sub_device *asd, int error,
 
 		dev_dbg(isp->dev, "%s: vf frame with exp_id %d is ready\n",
 			__func__, frame->exp_id);
-		if (asd->params.flash_state == ATOMISP_FLASH_ONGOING) {
-			if (frame->flash_state
-			    == IA_CSS_FRAME_FLASH_STATE_PARTIAL)
-				dev_dbg(isp->dev, "%s thumb partially flashed\n",
-					__func__);
-			else if (frame->flash_state
-				 == IA_CSS_FRAME_FLASH_STATE_FULL)
-				dev_dbg(isp->dev, "%s thumb completely flashed\n",
-					__func__);
-			else
-				dev_dbg(isp->dev, "%s thumb no flash in this frame\n",
-					__func__);
-		}
 		pipe->frame_config_id[frame->vb.vb2_buf.index] = frame->isp_config_id;
 		break;
 	case IA_CSS_BUFFER_TYPE_OUTPUT_FRAME:
@@ -835,40 +813,7 @@ void atomisp_buf_done(struct atomisp_sub_device *asd, int error,
 		}
 
 		pipe->frame_config_id[i] = frame->isp_config_id;
-		ctrl.id = V4L2_CID_FLASH_MODE;
-		if (asd->params.flash_state == ATOMISP_FLASH_ONGOING) {
-			if (frame->flash_state == IA_CSS_FRAME_FLASH_STATE_PARTIAL) {
-				asd->frame_status[i] = ATOMISP_FRAME_STATUS_FLASH_PARTIAL;
-				dev_dbg(isp->dev, "%s partially flashed\n", __func__);
-			} else if (frame->flash_state == IA_CSS_FRAME_FLASH_STATE_FULL) {
-				asd->frame_status[i] = ATOMISP_FRAME_STATUS_FLASH_EXPOSED;
-				asd->params.num_flash_frames--;
-				dev_dbg(isp->dev, "%s completely flashed\n", __func__);
-			} else {
-				asd->frame_status[i] = ATOMISP_FRAME_STATUS_OK;
-				dev_dbg(isp->dev, "%s no flash in this frame\n", __func__);
-			}
-
-			/* Check if flashing sequence is done */
-			if (asd->frame_status[i] == ATOMISP_FRAME_STATUS_FLASH_EXPOSED)
-				asd->params.flash_state = ATOMISP_FLASH_DONE;
-		} else if (isp->flash) {
-			if (v4l2_g_ctrl(isp->flash->ctrl_handler, &ctrl) == 0 &&
-			    ctrl.value == ATOMISP_FLASH_MODE_TORCH) {
-				ctrl.id = V4L2_CID_FLASH_TORCH_INTENSITY;
-				if (v4l2_g_ctrl(isp->flash->ctrl_handler, &ctrl) == 0 &&
-				    ctrl.value > 0)
-					asd->frame_status[i] = ATOMISP_FRAME_STATUS_FLASH_EXPOSED;
-				else
-					asd->frame_status[i] = ATOMISP_FRAME_STATUS_OK;
-			} else {
-				asd->frame_status[i] = ATOMISP_FRAME_STATUS_OK;
-			}
-		} else {
-			asd->frame_status[i] = ATOMISP_FRAME_STATUS_OK;
-		}
-
-		asd->params.last_frame_status = asd->frame_status[i];
+		asd->frame_status[i] = ATOMISP_FRAME_STATUS_OK;
 
 		if (asd->params.css_update_params_needed) {
 			atomisp_apply_css_parameters(asd,
@@ -1011,36 +956,6 @@ void atomisp_assert_recovery_work(struct work_struct *work)
 	mutex_unlock(&isp->mutex);
 }
 
-void atomisp_setup_flash(struct atomisp_sub_device *asd)
-{
-	struct atomisp_device *isp = asd->isp;
-	struct v4l2_control ctrl;
-
-	if (!isp->flash)
-		return;
-
-	if (asd->params.flash_state != ATOMISP_FLASH_REQUESTED &&
-	    asd->params.flash_state != ATOMISP_FLASH_DONE)
-		return;
-
-	if (asd->params.num_flash_frames) {
-		/* make sure the timeout is set before setting flash mode */
-		ctrl.id = V4L2_CID_FLASH_TIMEOUT;
-		ctrl.value = FLASH_TIMEOUT;
-
-		if (v4l2_s_ctrl(NULL, isp->flash->ctrl_handler, &ctrl)) {
-			dev_err(isp->dev, "flash timeout configure failed\n");
-			return;
-		}
-
-		ia_css_stream_request_flash(asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL].stream);
-
-		asd->params.flash_state = ATOMISP_FLASH_ONGOING;
-	} else {
-		asd->params.flash_state = ATOMISP_FLASH_IDLE;
-	}
-}
-
 irqreturn_t atomisp_isr_thread(int irq, void *isp_ptr)
 {
 	struct atomisp_device *isp = isp_ptr;
@@ -1083,14 +998,8 @@ irqreturn_t atomisp_isr_thread(int irq, void *isp_ptr)
 	 * time, instead, dequue one and process one, then another
 	 */
 	mutex_lock(&isp->mutex);
-	if (atomisp_css_isr_thread(isp))
-		goto out;
-
-	if (isp->asd.streaming)
-		atomisp_setup_flash(&isp->asd);
-out:
+	atomisp_css_isr_thread(isp);
 	mutex_unlock(&isp->mutex);
-	dev_dbg(isp->dev, "<%s\n", __func__);
 
 	return IRQ_HANDLED;
 }
@@ -4580,28 +4489,6 @@ int atomisp_set_shading_table(struct atomisp_sub_device *asd,
 	return ret;
 }
 
-int atomisp_flash_enable(struct atomisp_sub_device *asd, int num_frames)
-{
-	struct atomisp_device *isp = asd->isp;
-
-	if (num_frames < 0) {
-		dev_dbg(isp->dev, "%s ERROR: num_frames: %d\n", __func__,
-			num_frames);
-		return -EINVAL;
-	}
-	/* a requested flash is still in progress. */
-	if (num_frames && asd->params.flash_state != ATOMISP_FLASH_IDLE) {
-		dev_dbg(isp->dev, "%s flash busy: %d frames left: %d\n",
-			__func__, asd->params.flash_state,
-			asd->params.num_flash_frames);
-		return -EBUSY;
-	}
-
-	asd->params.num_flash_frames = num_frames;
-	asd->params.flash_state = ATOMISP_FLASH_REQUESTED;
-	return 0;
-}
-
 static int __checking_exp_id(struct atomisp_sub_device *asd, int exp_id)
 {
 	struct atomisp_device *isp = asd->isp;
diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.h b/drivers/staging/media/atomisp/pci/atomisp_cmd.h
index 03703eed86fa..e69ca14645b9 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.h
@@ -58,7 +58,6 @@ void atomisp_clear_css_buffer_counters(struct atomisp_sub_device *asd);
 void atomisp_msi_irq_init(struct atomisp_device *isp);
 void atomisp_msi_irq_uninit(struct atomisp_device *isp);
 void atomisp_assert_recovery_work(struct work_struct *work);
-void atomisp_setup_flash(struct atomisp_sub_device *asd);
 irqreturn_t atomisp_isr(int irq, void *dev);
 irqreturn_t atomisp_isr_thread(int irq, void *isp_ptr);
 const struct atomisp_format_bridge *get_atomisp_format_bridge_from_mbus(
@@ -262,9 +261,6 @@ int atomisp_set_shading_table(struct atomisp_sub_device *asd,
 
 void atomisp_free_internal_buffers(struct atomisp_sub_device *asd);
 
-int  atomisp_flash_enable(struct atomisp_sub_device *asd,
-			  int num_frames);
-
 int atomisp_freq_scaling(struct atomisp_device *vdev,
 			 enum atomisp_dfs_mode mode,
 			 bool force);
diff --git a/drivers/staging/media/atomisp/pci/atomisp_fops.c b/drivers/staging/media/atomisp/pci/atomisp_fops.c
index b464a6bd0bad..0d0c1649eaad 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_fops.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_fops.c
@@ -520,21 +520,12 @@ static int atomisp_open(struct file *file)
 	}
 
 	atomisp_dev_init_struct(isp);
-
-	ret = v4l2_subdev_call(isp->flash, core, s_power, 1);
-	if (ret < 0 && ret != -ENODEV && ret != -ENOIOCTLCMD) {
-		dev_err(isp->dev, "Failed to power-on flash\n");
-		goto css_error;
-	}
-
 	atomisp_subdev_init_struct(asd);
 
 	pipe->users++;
 	mutex_unlock(&isp->mutex);
 	return 0;
 
-css_error:
-	pm_runtime_put(vdev->v4l2_dev->dev);
 error:
 	mutex_unlock(&isp->mutex);
 	v4l2_fh_release(file);
@@ -549,7 +540,6 @@ static int atomisp_release(struct file *file)
 	struct atomisp_sub_device *asd = pipe->asd;
 	struct v4l2_subdev_fh fh;
 	struct v4l2_rect clear_compose = {0};
-	int ret;
 
 	v4l2_fh_init(&fh.vfh, vdev);
 
@@ -584,10 +574,6 @@ static int atomisp_release(struct file *file)
 
 	atomisp_destroy_pipes_stream(asd);
 
-	ret = v4l2_subdev_call(isp->flash, core, s_power, 0);
-	if (ret < 0 && ret != -ENODEV && ret != -ENOIOCTLCMD)
-		dev_warn(isp->dev, "Failed to power-off flash\n");
-
 	if (pm_runtime_put_sync(vdev->v4l2_dev->dev) < 0)
 		dev_err(isp->dev, "Failed to power off device\n");
 
diff --git a/drivers/staging/media/atomisp/pci/atomisp_internal.h b/drivers/staging/media/atomisp/pci/atomisp_internal.h
index 54ab872b91ee..d021c26aacd7 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_internal.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_internal.h
@@ -200,7 +200,6 @@ struct atomisp_device {
 	struct v4l2_subdev *sensor_subdevs[ATOMISP_CAMERA_NR_PORTS];
 	unsigned int input_cnt;
 	struct atomisp_input_subdev inputs[ATOM_ISP_MAX_INPUTS];
-	struct v4l2_subdev *flash;
 
 	struct atomisp_regs saved_regs;
 	struct atomisp_css_env css_env;
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index 8ef8cbc3b7a7..e243faec143e 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -136,15 +136,6 @@ static struct v4l2_queryctrl ci_v4l2_controls[] = {
 		.step = 1,
 		.default_value = 0,
 	},
-	{
-		.id = V4L2_CID_REQUEST_FLASH,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-		.name = "Request flash frames",
-		.minimum = 0,
-		.maximum = 10,
-		.step = 1,
-		.default_value = 1,
-	},
 	{
 		.id = V4L2_CID_ATOMISP_LOW_LIGHT,
 		.type = V4L2_CTRL_TYPE_BOOLEAN,
@@ -956,12 +947,6 @@ int atomisp_start_streaming(struct vb2_queue *vq, unsigned int count)
 
 	atomisp_qbuffers_to_css(asd);
 
-	if (isp->flash) {
-		asd->params.num_flash_frames = 0;
-		asd->params.flash_state = ATOMISP_FLASH_IDLE;
-		atomisp_setup_flash(asd);
-	}
-
 	atomisp_css_irq_enable(isp, IA_CSS_IRQ_INFO_CSS_RECEIVER_SOF,
 			       atomisp_css_valid_sof(isp));
 	atomisp_csi2_configure(asd);
@@ -1039,11 +1024,6 @@ void atomisp_stop_streaming(struct vb2_queue *vq)
 	if (ret)
 		dev_warn(isp->dev, "Stopping sensor stream failed: %d\n", ret);
 
-	if (isp->flash) {
-		asd->params.num_flash_frames = 0;
-		asd->params.flash_state = ATOMISP_FLASH_IDLE;
-	}
-
 	/* Disable the CSI interface on ANN B0/K0 */
 	if (isp->media_dev.hw_revision >= ((ATOMISP_HW_REVISION_ISP2401 <<
 					    ATOMISP_HW_REVISION_SHIFT) | ATOMISP_HW_STEPPING_B0)) {
@@ -1165,9 +1145,6 @@ static int atomisp_s_ctrl(struct file *file, void *fh,
 	case V4L2_CID_ATOMISP_FALSE_COLOR_CORRECTION:
 		ret = atomisp_false_color(asd, 1, &control->value);
 		break;
-	case V4L2_CID_REQUEST_FLASH:
-		ret = atomisp_flash_enable(asd, control->value);
-		break;
 	case V4L2_CID_ATOMISP_LOW_LIGHT:
 		ret = atomisp_low_light(asd, 1, &control->value);
 		break;
@@ -1212,7 +1189,6 @@ static int atomisp_camera_g_ext_ctrls(struct file *file, void *fh,
 {
 	struct video_device *vdev = video_devdata(file);
 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
-	struct atomisp_device *isp = video_get_drvdata(vdev);
 	struct v4l2_control ctrl;
 	int i;
 	int ret = 0;
@@ -1221,19 +1197,6 @@ static int atomisp_camera_g_ext_ctrls(struct file *file, void *fh,
 		ctrl.id = c->controls[i].id;
 		ctrl.value = c->controls[i].value;
 		switch (ctrl.id) {
-		case V4L2_CID_FLASH_STATUS:
-		case V4L2_CID_FLASH_INTENSITY:
-		case V4L2_CID_FLASH_TORCH_INTENSITY:
-		case V4L2_CID_FLASH_INDICATOR_INTENSITY:
-		case V4L2_CID_FLASH_TIMEOUT:
-		case V4L2_CID_FLASH_STROBE:
-		case V4L2_CID_FLASH_MODE:
-		case V4L2_CID_FLASH_STATUS_REGISTER:
-			if (isp->flash)
-				ret =
-				    v4l2_g_ctrl(isp->flash->ctrl_handler,
-						&ctrl);
-			break;
 		case V4L2_CID_ZOOM_ABSOLUTE:
 			ret = atomisp_digital_zoom(asd, 0, &ctrl.value);
 			break;
@@ -1283,7 +1246,6 @@ static int atomisp_camera_s_ext_ctrls(struct file *file, void *fh,
 {
 	struct video_device *vdev = video_devdata(file);
 	struct atomisp_sub_device *asd = atomisp_to_video_pipe(vdev)->asd;
-	struct atomisp_device *isp = video_get_drvdata(vdev);
 	struct v4l2_control ctrl;
 	int i;
 	int ret = 0;
@@ -1294,29 +1256,6 @@ static int atomisp_camera_s_ext_ctrls(struct file *file, void *fh,
 		ctrl.id = c->controls[i].id;
 		ctrl.value = c->controls[i].value;
 		switch (ctrl.id) {
-		case V4L2_CID_FLASH_STATUS:
-		case V4L2_CID_FLASH_INTENSITY:
-		case V4L2_CID_FLASH_TORCH_INTENSITY:
-		case V4L2_CID_FLASH_INDICATOR_INTENSITY:
-		case V4L2_CID_FLASH_TIMEOUT:
-		case V4L2_CID_FLASH_STROBE:
-		case V4L2_CID_FLASH_MODE:
-		case V4L2_CID_FLASH_STATUS_REGISTER:
-			if (isp->flash) {
-				ret =
-				    v4l2_s_ctrl(NULL, isp->flash->ctrl_handler,
-						&ctrl);
-				/*
-				 * When flash mode is changed we need to reset
-				 * flash state
-				 */
-				if (ctrl.id == V4L2_CID_FLASH_MODE) {
-					asd->params.flash_state =
-					    ATOMISP_FLASH_IDLE;
-					asd->params.num_flash_frames = 0;
-				}
-			}
-			break;
 		case V4L2_CID_ZOOM_ABSOLUTE:
 			ret = atomisp_digital_zoom(asd, 1, &ctrl.value);
 			break;
diff --git a/drivers/staging/media/atomisp/pci/atomisp_subdev.h b/drivers/staging/media/atomisp/pci/atomisp_subdev.h
index bcfa829dbf61..4ab123a1c165 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_subdev.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_subdev.h
@@ -108,14 +108,6 @@ struct atomisp_pad_format {
 	struct v4l2_rect compose;
 };
 
-/* Internal states for flash process */
-enum atomisp_flash_state {
-	ATOMISP_FLASH_IDLE,
-	ATOMISP_FLASH_REQUESTED,
-	ATOMISP_FLASH_ONGOING,
-	ATOMISP_FLASH_DONE
-};
-
 /*
  * This structure is used to cache the CSS parameters, it aligns to
  * struct ia_css_isp_config but without un-supported and deprecated parts.
@@ -221,11 +213,6 @@ struct atomisp_subdev_params {
 	int  dvs_ver_proj_bytes;
 	int  dvs_hor_proj_bytes;
 
-	/* Flash */
-	int num_flash_frames;
-	enum atomisp_flash_state flash_state;
-	enum atomisp_frame_status last_frame_status;
-
 	/* Flag to check if driver needs to update params to css */
 	bool css_update_params_needed;
 };
diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
index 0069b547754d..4c3d55301089 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
@@ -825,13 +825,6 @@ static int atomisp_subdev_probe(struct atomisp_device *isp)
 			isp->sensor_lanes[mipi_port] = subdevs->lanes;
 			isp->sensor_subdevs[subdevs->port] = subdevs->subdev;
 			break;
-		case LED_FLASH:
-			if (isp->flash) {
-				dev_warn(isp->dev, "too many atomisp flash devices\n");
-				continue;
-			}
-			isp->flash = subdevs->subdev;
-			break;
 		default:
 			dev_dbg(isp->dev, "unknown subdev probed\n");
 			break;
diff --git a/drivers/staging/media/atomisp/pci/ia_css_frame_public.h b/drivers/staging/media/atomisp/pci/ia_css_frame_public.h
index 7ba464abf447..a26d9598e400 100644
--- a/drivers/staging/media/atomisp/pci/ia_css_frame_public.h
+++ b/drivers/staging/media/atomisp/pci/ia_css_frame_public.h
@@ -137,12 +137,6 @@ enum ia_css_frame_delay {
 	IA_CSS_FRAME_DELAY_2  /** Frame delay = 2 */
 };
 
-enum ia_css_frame_flash_state {
-	IA_CSS_FRAME_FLASH_STATE_NONE,
-	IA_CSS_FRAME_FLASH_STATE_PARTIAL,
-	IA_CSS_FRAME_FLASH_STATE_FULL
-};
-
 /* Frame structure. This structure describes an image buffer or frame.
  *  This is the main structure used for all input and output images.
  */
@@ -176,7 +170,6 @@ struct ia_css_frame {
 	 * binary, we use output port, but we expect VF_OUTPUT_DONE event
 	 */
 	enum ia_css_buffer_type buf_type;
-	enum ia_css_frame_flash_state flash_state;
 	unsigned int exp_id;
 	/** exposure id, see ia_css_event_public.h for more detail */
 	u32 isp_config_id; /** Unique ID to track which config was actually applied to a particular frame */
@@ -202,7 +195,6 @@ struct ia_css_frame {
 	.frame_info		= IA_CSS_BINARY_DEFAULT_FRAME_INFO, \
 	.dynamic_queue_id	= SH_CSS_INVALID_QUEUE_ID, \
 	.buf_type		= IA_CSS_BUFFER_TYPE_INVALID, \
-	.flash_state		= IA_CSS_FRAME_FLASH_STATE_NONE, \
 }
 
 /* @brief Allocate a CSS frame structure
diff --git a/drivers/staging/media/atomisp/pci/ia_css_stream_public.h b/drivers/staging/media/atomisp/pci/ia_css_stream_public.h
index 888f54d8495e..961c61288083 100644
--- a/drivers/staging/media/atomisp/pci/ia_css_stream_public.h
+++ b/drivers/staging/media/atomisp/pci/ia_css_stream_public.h
@@ -457,20 +457,6 @@ ia_css_stream_send_input_embedded_line(const struct ia_css_stream *stream,
 void
 ia_css_stream_end_input_frame(const struct ia_css_stream *stream);
 
-/* @brief send a request flash command to SP
- *
- * @param[in]	stream The stream.
- * @return	None
- *
- * Driver needs to call this function to send a flash request command
- * to SP, SP will be responsible for switching on/off the flash at proper
- * time. Due to the SP multi-threading environment, this request may have
- * one-frame delay, the driver needs to check the flashed flag in frame info
- * to determine which frame is being flashed.
- */
-void
-ia_css_stream_request_flash(struct ia_css_stream *stream);
-
 /* @brief Configure a stream with filter coefficients.
  *	   @deprecated {Replaced by
  *				   ia_css_pipe_set_isp_config_on_pipe()}
diff --git a/drivers/staging/media/atomisp/pci/sh_css.c b/drivers/staging/media/atomisp/pci/sh_css.c
index 22c8cdcb2eb8..6520a35b6e47 100644
--- a/drivers/staging/media/atomisp/pci/sh_css.c
+++ b/drivers/staging/media/atomisp/pci/sh_css.c
@@ -2834,7 +2834,6 @@ init_vf_frameinfo_defaults(struct ia_css_pipe *pipe,
 	assert(vf_frame);
 
 	sh_css_pipe_get_viewfinder_frame_info(pipe, &vf_frame->frame_info, idx);
-	vf_frame->flash_state = IA_CSS_FRAME_FLASH_STATE_NONE;
 	ia_css_pipeline_get_sp_thread_id(ia_css_pipe_get_pipe_num(pipe), &thread_id);
 	ia_css_query_internal_queue_id(IA_CSS_BUFFER_TYPE_VF_OUTPUT_FRAME + idx, thread_id, &queue_id);
 	vf_frame->dynamic_queue_id = queue_id;
@@ -3012,7 +3011,6 @@ init_in_frameinfo_memory_defaults(struct ia_css_pipe *pipe,
 	in_frame->frame_info.raw_bit_depth = ia_css_pipe_util_pipe_input_format_bpp(pipe);
 	ia_css_frame_info_set_width(&in_frame->frame_info,
 				    pipe->stream->config.input_config.input_res.width, 0);
-	in_frame->flash_state = IA_CSS_FRAME_FLASH_STATE_NONE;
 	ia_css_pipeline_get_sp_thread_id(ia_css_pipe_get_pipe_num(pipe), &thread_id);
 	ia_css_query_internal_queue_id(IA_CSS_BUFFER_TYPE_INPUT_FRAME, thread_id, &queue_id);
 	in_frame->dynamic_queue_id = queue_id;
@@ -3040,7 +3038,6 @@ init_out_frameinfo_defaults(struct ia_css_pipe *pipe,
 	assert(out_frame);
 
 	sh_css_pipe_get_output_frame_info(pipe, &out_frame->frame_info, idx);
-	out_frame->flash_state = IA_CSS_FRAME_FLASH_STATE_NONE;
 	ia_css_pipeline_get_sp_thread_id(ia_css_pipe_get_pipe_num(pipe), &thread_id);
 	ia_css_query_internal_queue_id(IA_CSS_BUFFER_TYPE_OUTPUT_FRAME + idx, thread_id, &queue_id);
 	out_frame->dynamic_queue_id = queue_id;
@@ -3821,12 +3818,6 @@ ia_css_pipe_dequeue_buffer(struct ia_css_pipe *pipe,
 				buffer->exp_id = ddr_buffer.payload.frame.exp_id;
 				frame->exp_id = ddr_buffer.payload.frame.exp_id;
 				frame->isp_config_id = ddr_buffer.payload.frame.isp_parameters_id;
-				if (ddr_buffer.payload.frame.flashed == 1)
-					frame->flash_state =
-					    IA_CSS_FRAME_FLASH_STATE_PARTIAL;
-				if (ddr_buffer.payload.frame.flashed == 2)
-					frame->flash_state =
-					    IA_CSS_FRAME_FLASH_STATE_FULL;
 				frame->valid = pipe->num_invalid_frames == 0;
 				if (!frame->valid)
 					pipe->num_invalid_frames--;
@@ -6788,8 +6779,6 @@ create_host_copy_pipeline(struct ia_css_pipe *pipe,
 	ia_css_pipeline_clean(me);
 
 	/* Construct out_frame info */
-	out_frame->flash_state = IA_CSS_FRAME_FLASH_STATE_NONE;
-
 	if (copy_on_sp(pipe) &&
 	    pipe->stream->config.input_config.format == ATOMISP_INPUT_FORMAT_BINARY_8) {
 		ia_css_frame_info_init(&out_frame->frame_info, JPEG_BYTES, 1,
@@ -6837,7 +6826,6 @@ create_host_isyscopy_capture_pipeline(struct ia_css_pipe *pipe)
 	err = sh_css_pipe_get_output_frame_info(pipe, &out_frame->frame_info, 0);
 	if (err)
 		return err;
-	out_frame->flash_state = IA_CSS_FRAME_FLASH_STATE_NONE;
 	ia_css_pipeline_get_sp_thread_id(ia_css_pipe_get_pipe_num(pipe), &thread_id);
 	ia_css_query_internal_queue_id(IA_CSS_BUFFER_TYPE_OUTPUT_FRAME, thread_id, &queue_id);
 	out_frame->dynamic_queue_id = queue_id;
@@ -7492,27 +7480,6 @@ int ia_css_stream_capture(struct ia_css_stream *stream, int num_captures,
 	return return_err;
 }
 
-void ia_css_stream_request_flash(struct ia_css_stream *stream)
-{
-	(void)stream;
-
-	assert(stream);
-	ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
-			    "ia_css_stream_request_flash() enter: void\n");
-
-	if (!IS_ISP2401 || sh_css_sp_is_running()) {
-		if (!sh_css_write_host2sp_command(host2sp_cmd_start_flash) && IS_ISP2401) {
-			IA_CSS_ERROR("Call to 'sh-css_write_host2sp_command()' failed");
-			ia_css_debug_dump_sp_sw_debug_info();
-		}
-	} else {
-		IA_CSS_LOG("SP is not running!");
-	}
-
-	ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
-			    "ia_css_stream_request_flash() leave: return_void\n");
-}
-
 static void
 sh_css_init_host_sp_control_vars(void)
 {
-- 
2.44.0

[PATCH 15/23] media: atomisp: Drop unused frame_status tracking

[Hans de Goede]

After removing the flash support frame_status now always is
ATOMISP_FRAME_STATUS_OK aka 0. Drop frame_status tracking.

This also means one less atomisp custom use for the vb2_buffer->reserved*
fields (all custom use of these fields should be removed).

While at it also remove the no longer used vf_frame pointer from
struct atomisp_sub_device.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 .../staging/media/atomisp/include/linux/atomisp.h | 15 ---------------
 drivers/staging/media/atomisp/pci/atomisp_cmd.c   |  1 -
 drivers/staging/media/atomisp/pci/atomisp_ioctl.c | 12 ++----------
 .../staging/media/atomisp/pci/atomisp_subdev.h    |  3 ---
 4 files changed, 2 insertions(+), 29 deletions(-)

diff --git a/drivers/staging/media/atomisp/include/linux/atomisp.h b/drivers/staging/media/atomisp/include/linux/atomisp.h
index db0c1b87c9ef..16c9da172c03 100644
--- a/drivers/staging/media/atomisp/include/linux/atomisp.h
+++ b/drivers/staging/media/atomisp/include/linux/atomisp.h
@@ -614,21 +614,6 @@ enum atomisp_camera_port {
 	ATOMISP_CAMERA_NR_PORTS
 };
 
-/* Frame status. This is used to detect corrupted frames and flash
- * exposed frames. Usually, the first 2 frames coming out of the sensor
- * are corrupted. When using flash, the frame before and the frame after
- * the flash exposed frame may be partially exposed by flash. The ISP
- * statistics for these frames should not be used by the 3A library.
- * The frame status value can be found in the "reserved" field in the
- * v4l2_buffer struct. */
-enum atomisp_frame_status {
-	ATOMISP_FRAME_STATUS_OK,
-	ATOMISP_FRAME_STATUS_CORRUPTED,
-	ATOMISP_FRAME_STATUS_FLASH_EXPOSED,
-	ATOMISP_FRAME_STATUS_FLASH_PARTIAL,
-	ATOMISP_FRAME_STATUS_FLASH_FAILED,
-};
-
 enum atomisp_ext_isp_id {
 	EXT_ISP_CID_ISO = 0,
 	EXT_ISP_CID_CAPTURE_HDR,
diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index f5a578a9c588..335f142c1fc5 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -813,7 +813,6 @@ void atomisp_buf_done(struct atomisp_sub_device *asd, int error,
 		}
 
 		pipe->frame_config_id[i] = frame->isp_config_id;
-		asd->frame_status[i] = ATOMISP_FRAME_STATUS_OK;
 
 		if (asd->params.css_update_params_needed) {
 			atomisp_apply_css_parameters(asd,
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index e243faec143e..d7c842997139 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -826,7 +826,6 @@ static int atomisp_dqbuf_wrapper(struct file *file, void *fh, struct v4l2_buffer
 {
 	struct video_device *vdev = video_devdata(file);
 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
-	struct atomisp_sub_device *asd = pipe->asd;
 	struct atomisp_device *isp = video_get_drvdata(vdev);
 	struct ia_css_frame *frame;
 	struct vb2_buffer *vb;
@@ -839,15 +838,8 @@ static int atomisp_dqbuf_wrapper(struct file *file, void *fh, struct v4l2_buffer
 	vb = vb2_get_buffer(&pipe->vb_queue, buf->index);
 	frame = vb_to_frame(vb);
 
-	buf->reserved = asd->frame_status[buf->index];
-
-	/*
-	 * Hack:
-	 * Currently frame_status in the enum type which takes no more lower
-	 * 8 bit.
-	 * use bit[31:16] for exp_id as it is only in the range of 1~255
-	 */
-	buf->reserved &= 0x0000ffff;
+	/* reserved bit[31:16] is used for exp_id */
+	buf->reserved = 0;
 	if (!(buf->flags & V4L2_BUF_FLAG_ERROR))
 		buf->reserved |= frame->exp_id;
 	buf->reserved2 = pipe->frame_config_id[buf->index];
diff --git a/drivers/staging/media/atomisp/pci/atomisp_subdev.h b/drivers/staging/media/atomisp/pci/atomisp_subdev.h
index 4ab123a1c165..b6c66a5d523c 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_subdev.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_subdev.h
@@ -274,9 +274,6 @@ struct atomisp_sub_device {
 	struct list_head dis_stats_in_css;
 	spinlock_t dis_stats_lock;
 
-	struct ia_css_frame *vf_frame; /* TODO: needed? */
-	enum atomisp_frame_status frame_status[VIDEO_MAX_FRAME];
-
 	/* This field specifies which camera (v4l2 input) is selected. */
 	int input_curr;
 
-- 
2.44.0

[PATCH 16/23] media: atomisp: Drop intel_v4l2_subdev_type

[Hans de Goede]

intel_v4l2_subdev_type / atomisp_input_subdev.type now always is
RAW_CAMERA, drop it.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 .../media/atomisp/i2c/atomisp-gc2235.c        |  2 +-
 .../media/atomisp/i2c/atomisp-mt9m114.c       |  2 +-
 .../media/atomisp/i2c/atomisp-ov2722.c        |  2 +-
 .../include/linux/atomisp_gmin_platform.h     |  3 +-
 .../atomisp/include/linux/atomisp_platform.h  | 11 ------
 .../media/atomisp/pci/atomisp_gmin_platform.c | 16 +++------
 .../media/atomisp/pci/atomisp_internal.h      |  1 -
 .../staging/media/atomisp/pci/atomisp_ioctl.c |  1 -
 .../staging/media/atomisp/pci/atomisp_v4l2.c  | 36 ++++++++-----------
 9 files changed, 23 insertions(+), 51 deletions(-)

diff --git a/drivers/staging/media/atomisp/i2c/atomisp-gc2235.c b/drivers/staging/media/atomisp/i2c/atomisp-gc2235.c
index bec4c5615864..994b8bceb4f5 100644
--- a/drivers/staging/media/atomisp/i2c/atomisp-gc2235.c
+++ b/drivers/staging/media/atomisp/i2c/atomisp-gc2235.c
@@ -852,7 +852,7 @@ static int gc2235_probe(struct i2c_client *client)
 	if (ret)
 		gc2235_remove(client);
 
-	return atomisp_register_i2c_module(&dev->sd, gcpdev, RAW_CAMERA);
+	return atomisp_register_i2c_module(&dev->sd, gcpdev);
 
 out_free:
 	v4l2_device_unregister_subdev(&dev->sd);
diff --git a/drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c b/drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c
index 20f02d18a8de..03ebee976d5b 100644
--- a/drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c
+++ b/drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c
@@ -1552,7 +1552,7 @@ static int mt9m114_probe(struct i2c_client *client)
 		return ret;
 	}
 
-	ret = atomisp_register_i2c_module(&dev->sd, pdata, RAW_CAMERA);
+	ret = atomisp_register_i2c_module(&dev->sd, pdata);
 	if (ret) {
 		v4l2_device_unregister_subdev(&dev->sd);
 		kfree(dev);
diff --git a/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c b/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c
index d60630ea16df..c31a81d64950 100644
--- a/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c
+++ b/drivers/staging/media/atomisp/i2c/atomisp-ov2722.c
@@ -992,7 +992,7 @@ static int ov2722_probe(struct i2c_client *client)
 	if (ret)
 		ov2722_remove(client);
 
-	return atomisp_register_i2c_module(&dev->sd, ovpdev, RAW_CAMERA);
+	return atomisp_register_i2c_module(&dev->sd, ovpdev);
 
 out_ctrl_handler_free:
 	v4l2_ctrl_handler_free(&dev->ctrl_handler);
diff --git a/drivers/staging/media/atomisp/include/linux/atomisp_gmin_platform.h b/drivers/staging/media/atomisp/include/linux/atomisp_gmin_platform.h
index 64bd54835c32..711e8fb3464f 100644
--- a/drivers/staging/media/atomisp/include/linux/atomisp_gmin_platform.h
+++ b/drivers/staging/media/atomisp/include/linux/atomisp_gmin_platform.h
@@ -19,8 +19,7 @@
 #include "atomisp_platform.h"
 
 int atomisp_register_i2c_module(struct v4l2_subdev *subdev,
-				struct camera_sensor_platform_data *plat_data,
-				enum intel_v4l2_subdev_type type);
+				struct camera_sensor_platform_data *plat_data);
 int atomisp_gmin_remove_subdev(struct v4l2_subdev *sd);
 int gmin_get_var_int(struct device *dev, bool is_gmin,
 		     const char *var, int def);
diff --git a/drivers/staging/media/atomisp/include/linux/atomisp_platform.h b/drivers/staging/media/atomisp/include/linux/atomisp_platform.h
index 8060db0e0c5f..51e7b199e005 100644
--- a/drivers/staging/media/atomisp/include/linux/atomisp_platform.h
+++ b/drivers/staging/media/atomisp/include/linux/atomisp_platform.h
@@ -109,18 +109,7 @@ enum atomisp_input_format {
 
 #define N_ATOMISP_INPUT_FORMAT (ATOMISP_INPUT_FORMAT_USER_DEF8 + 1)
 
-enum intel_v4l2_subdev_type {
-	RAW_CAMERA = 1,
-};
-
-struct intel_v4l2_subdev_id {
-	char name[17];
-	enum intel_v4l2_subdev_type type;
-	enum atomisp_camera_port    port;
-};
-
 struct intel_v4l2_subdev_table {
-	enum intel_v4l2_subdev_type type;
 	enum atomisp_camera_port port;
 	unsigned int lanes;
 	struct v4l2_subdev *subdev;
diff --git a/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c b/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
index a5e68b2cac50..aba69cf97785 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
@@ -126,7 +126,7 @@ static DEFINE_MUTEX(gmin_regulator_mutex);
 static int gmin_v1p8_enable_count;
 static int gmin_v2p8_enable_count;
 
-/* The atomisp uses type==0 for the end-of-list marker, so leave space. */
+/* The atomisp uses subdev==NULL for the end-of-list marker, so leave space. */
 static struct intel_v4l2_subdev_table pdata_subdevs[MAX_SUBDEVS + 1];
 
 static const struct atomisp_platform_data pdata = {
@@ -145,16 +145,13 @@ const struct atomisp_platform_data *atomisp_get_platform_data(void)
 EXPORT_SYMBOL_GPL(atomisp_get_platform_data);
 
 int atomisp_register_i2c_module(struct v4l2_subdev *subdev,
-				struct camera_sensor_platform_data *plat_data,
-				enum intel_v4l2_subdev_type type)
+				struct camera_sensor_platform_data *plat_data)
 {
 	int i;
 	struct gmin_subdev *gs;
 	struct i2c_client *client = v4l2_get_subdevdata(subdev);
 	struct acpi_device *adev = ACPI_COMPANION(&client->dev);
 
-	dev_info(&client->dev, "register atomisp i2c module type %d\n", type);
-
 	/* The windows driver model (and thus most BIOSes by default)
 	 * uses ACPI runtime power management for camera devices, but
 	 * we don't.  Disable it, or else the rails will be needlessly
@@ -172,10 +169,10 @@ int atomisp_register_i2c_module(struct v4l2_subdev *subdev,
 	adev->power.flags.power_resources = 0;
 
 	for (i = 0; i < MAX_SUBDEVS; i++)
-		if (!pdata.subdevs[i].type)
+		if (!pdata.subdevs[i].subdev)
 			break;
 
-	if (pdata.subdevs[i].type)
+	if (i == MAX_SUBDEVS)
 		return -ENOMEM;
 
 	/* Note subtlety of initialization order: at the point where
@@ -187,7 +184,6 @@ int atomisp_register_i2c_module(struct v4l2_subdev *subdev,
 	if (!gs)
 		return -ENODEV;
 
-	pdata.subdevs[i].type = type;
 	pdata.subdevs[i].port = gs->csi_port;
 	pdata.subdevs[i].lanes = gs->csi_lanes;
 	pdata.subdevs[i].subdev = subdev;
@@ -1136,7 +1132,7 @@ int atomisp_register_sensor_no_gmin(struct v4l2_subdev *subdev, u32 lanes,
 	}
 
 	for (i = 0; i < MAX_SUBDEVS; i++)
-		if (!pdata.subdevs[i].type)
+		if (!pdata.subdevs[i].subdev)
 			break;
 
 	if (i >= MAX_SUBDEVS) {
@@ -1148,7 +1144,6 @@ int atomisp_register_sensor_no_gmin(struct v4l2_subdev *subdev, u32 lanes,
 	if (ret)
 		return ret;
 
-	pdata.subdevs[i].type = RAW_CAMERA;
 	pdata.subdevs[i].port = port;
 	pdata.subdevs[i].lanes = lanes;
 	pdata.subdevs[i].subdev = subdev;
@@ -1166,7 +1161,6 @@ void atomisp_unregister_subdev(struct v4l2_subdev *subdev)
 
 		camera_sensor_csi_free(subdev);
 		pdata.subdevs[i].subdev = NULL;
-		pdata.subdevs[i].type = 0;
 		pdata.subdevs[i].port = 0;
 		break;
 	}
diff --git a/drivers/staging/media/atomisp/pci/atomisp_internal.h b/drivers/staging/media/atomisp/pci/atomisp_internal.h
index d021c26aacd7..9227399502b9 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_internal.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_internal.h
@@ -121,7 +121,6 @@
 	round_down((2 * (n) + (d) * (step)) / (2 * (d)), (step))
 
 struct atomisp_input_subdev {
-	unsigned int type;
 	enum atomisp_camera_port port;
 	u32 code; /* MEDIA_BUS_FMT_* */
 	bool binning_support;
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
index d7c842997139..effc71b5a439 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c
@@ -406,7 +406,6 @@ static int atomisp_enum_input(struct file *file, void *fh,
 
 	input->type = V4L2_INPUT_TYPE_CAMERA;
 	input->index = index;
-	input->reserved[0] = isp->inputs[index].type;
 	input->reserved[1] = isp->inputs[index].port;
 
 	return 0;
diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
index 4c3d55301089..470c123256a7 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
@@ -803,32 +803,25 @@ static int atomisp_subdev_probe(struct atomisp_device *isp)
 	 * converting them to standard v4l2 sensor drivers using runtime-pm +
 	 * ACPI for pm and v4l2_async_register_subdev_sensor() registration.
 	 */
-	for (subdevs = pdata->subdevs; subdevs->type; ++subdevs) {
+	for (subdevs = pdata->subdevs; subdevs->subdev; ++subdevs) {
 		ret = v4l2_device_register_subdev(&isp->v4l2_dev, subdevs->subdev);
 		if (ret)
 			continue;
 
-		switch (subdevs->type) {
-		case RAW_CAMERA:
-			if (subdevs->port >= ATOMISP_CAMERA_NR_PORTS) {
-				dev_err(isp->dev, "port %d not supported\n", subdevs->port);
-				break;
-			}
-
-			if (isp->sensor_subdevs[subdevs->port]) {
-				dev_err(isp->dev, "port %d already has a sensor attached\n",
-					subdevs->port);
-				break;
-			}
-
-			mipi_port = atomisp_port_to_mipi_port(isp, subdevs->port);
-			isp->sensor_lanes[mipi_port] = subdevs->lanes;
-			isp->sensor_subdevs[subdevs->port] = subdevs->subdev;
-			break;
-		default:
-			dev_dbg(isp->dev, "unknown subdev probed\n");
-			break;
+		if (subdevs->port >= ATOMISP_CAMERA_NR_PORTS) {
+			dev_err(isp->dev, "port %d not supported\n", subdevs->port);
+			continue;
 		}
+
+		if (isp->sensor_subdevs[subdevs->port]) {
+			dev_err(isp->dev, "port %d already has a sensor attached\n",
+				subdevs->port);
+			continue;
+		}
+
+		mipi_port = atomisp_port_to_mipi_port(isp, subdevs->port);
+		isp->sensor_lanes[mipi_port] = subdevs->lanes;
+		isp->sensor_subdevs[subdevs->port] = subdevs->subdev;
 	}
 
 	return atomisp_csi_lane_config(isp);
@@ -1039,7 +1032,6 @@ int atomisp_register_device_nodes(struct atomisp_device *isp)
 
 		input = &isp->inputs[isp->input_cnt];
 
-		input->type = RAW_CAMERA;
 		input->port = i;
 		input->camera = isp->sensor_subdevs[i];
 		input->csi_port = &isp->csi2_port[i].subdev;
-- 
2.44.0

[PATCH 17/23] media: atomisp: Remove gmin_platform VCM code.

[Hans de Goede]

VCM support has already been removed from the main atomisp driver
in commit 7473c97dd8d0 ("media: atomisp: Remove custom VCM handling")
remove the left-over dead VCM handling from the gmin platform code.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 .../include/linux/atomisp_gmin_platform.h     |  3 --
 .../atomisp/include/linux/atomisp_platform.h  | 21 ---------
 .../media/atomisp/pci/atomisp_gmin_platform.c | 47 -------------------
 3 files changed, 71 deletions(-)

diff --git a/drivers/staging/media/atomisp/include/linux/atomisp_gmin_platform.h b/drivers/staging/media/atomisp/include/linux/atomisp_gmin_platform.h
index 711e8fb3464f..ecd82220f04a 100644
--- a/drivers/staging/media/atomisp/include/linux/atomisp_gmin_platform.h
+++ b/drivers/staging/media/atomisp/include/linux/atomisp_gmin_platform.h
@@ -28,7 +28,4 @@ gmin_camera_platform_data(
     struct v4l2_subdev *subdev,
     enum atomisp_input_format csi_format,
     enum atomisp_bayer_order csi_bayer);
-
-int atomisp_gmin_register_vcm_control(struct camera_vcm_control *);
-
 #endif
diff --git a/drivers/staging/media/atomisp/include/linux/atomisp_platform.h b/drivers/staging/media/atomisp/include/linux/atomisp_platform.h
index 51e7b199e005..098859bde86f 100644
--- a/drivers/staging/media/atomisp/include/linux/atomisp_platform.h
+++ b/drivers/staging/media/atomisp/include/linux/atomisp_platform.h
@@ -147,25 +147,6 @@ struct atomisp_input_stream_info {
 	struct atomisp_isys_config_info isys_info[MAX_STREAMS_PER_CHANNEL];
 };
 
-struct camera_vcm_control;
-struct camera_vcm_ops {
-	int (*power_up)(struct v4l2_subdev *sd, struct camera_vcm_control *vcm);
-	int (*power_down)(struct v4l2_subdev *sd,
-			  struct camera_vcm_control *vcm);
-	int (*queryctrl)(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc,
-			 struct camera_vcm_control *vcm);
-	int (*g_ctrl)(struct v4l2_subdev *sd, struct v4l2_control *ctrl,
-		      struct camera_vcm_control *vcm);
-	int (*s_ctrl)(struct v4l2_subdev *sd, struct v4l2_control *ctrl,
-		      struct camera_vcm_control *vcm);
-};
-
-struct camera_vcm_control {
-	char camera_module[CAMERA_MODULE_ID_LEN];
-	struct camera_vcm_ops *ops;
-	struct list_head list;
-};
-
 struct camera_sensor_platform_data {
 	int (*flisclk_ctrl)(struct v4l2_subdev *subdev, int flag);
 	int (*csi_cfg)(struct v4l2_subdev *subdev, int flag);
@@ -179,8 +160,6 @@ struct camera_sensor_platform_data {
 	int (*v1p8_ctrl)(struct v4l2_subdev *subdev, int on);
 	int (*v2p8_ctrl)(struct v4l2_subdev *subdev, int on);
 	int (*v1p2_ctrl)(struct v4l2_subdev *subdev, int on);
-	struct camera_vcm_control *(*get_vcm_ctrl)(struct v4l2_subdev *subdev,
-		char *module_id);
 };
 
 struct camera_mipi_info {
diff --git a/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c b/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
index aba69cf97785..e12354820a3a 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
@@ -75,7 +75,6 @@ struct gmin_subdev {
 	struct regulator *v1p8_reg;
 	struct regulator *v2p8_reg;
 	struct regulator *v1p2_reg;
-	struct regulator *v2p8_vcm_reg;
 	enum atomisp_camera_port csi_port;
 	unsigned int csi_lanes;
 	enum atomisp_input_format csi_fmt;
@@ -85,7 +84,6 @@ struct gmin_subdev {
 	bool v1p8_on;
 	bool v2p8_on;
 	bool v1p2_on;
-	bool v2p8_vcm_on;
 
 	int v1p8_gpio;
 	int v2p8_gpio;
@@ -133,9 +131,6 @@ static const struct atomisp_platform_data pdata = {
 	.subdevs = pdata_subdevs,
 };
 
-static LIST_HEAD(vcm_devices);
-static DEFINE_MUTEX(vcm_lock);
-
 static struct gmin_subdev *find_gmin_subdev(struct v4l2_subdev *subdev);
 
 const struct atomisp_platform_data *atomisp_get_platform_data(void)
@@ -214,7 +209,6 @@ int atomisp_gmin_remove_subdev(struct v4l2_subdev *sd)
 				regulator_put(gmin_subdevs[i].v1p8_reg);
 				regulator_put(gmin_subdevs[i].v2p8_reg);
 				regulator_put(gmin_subdevs[i].v1p2_reg);
-				regulator_put(gmin_subdevs[i].v2p8_vcm_reg);
 			}
 			gmin_subdevs[i].subdev = NULL;
 		}
@@ -664,7 +658,6 @@ static int gmin_subdev_add(struct gmin_subdev *gs)
 		gs->v2p8_reg = regulator_get(dev, "V2P8SX");
 
 		gs->v1p2_reg = regulator_get(dev, "V1P2A");
-		gs->v2p8_vcm_reg = regulator_get(dev, "VPROG4B");
 
 		/* Note: ideally we would initialize v[12]p8_on to the
 		 * output of regulator_is_enabled(), but sadly that
@@ -1167,31 +1160,6 @@ void atomisp_unregister_subdev(struct v4l2_subdev *subdev)
 }
 EXPORT_SYMBOL_GPL(atomisp_unregister_subdev);
 
-static struct camera_vcm_control *gmin_get_vcm_ctrl(struct v4l2_subdev *subdev,
-	char *camera_module)
-{
-	struct i2c_client *client = v4l2_get_subdevdata(subdev);
-	struct gmin_subdev *gs = find_gmin_subdev(subdev);
-	struct camera_vcm_control *vcm;
-
-	if (!client || !gs)
-		return NULL;
-
-	if (!camera_module)
-		return NULL;
-
-	mutex_lock(&vcm_lock);
-	list_for_each_entry(vcm, &vcm_devices, list) {
-		if (!strcmp(camera_module, vcm->camera_module)) {
-			mutex_unlock(&vcm_lock);
-			return vcm;
-		}
-	}
-
-	mutex_unlock(&vcm_lock);
-	return NULL;
-}
-
 static struct camera_sensor_platform_data pmic_gmin_plat = {
 	.gpio0_ctrl = gmin_gpio0_ctrl,
 	.gpio1_ctrl = gmin_gpio1_ctrl,
@@ -1200,7 +1168,6 @@ static struct camera_sensor_platform_data pmic_gmin_plat = {
 	.v1p2_ctrl = gmin_v1p2_ctrl,
 	.flisclk_ctrl = gmin_flisclk_ctrl,
 	.csi_cfg = gmin_csi_cfg,
-	.get_vcm_ctrl = gmin_get_vcm_ctrl,
 };
 
 static struct camera_sensor_platform_data acpi_gmin_plat = {
@@ -1211,7 +1178,6 @@ static struct camera_sensor_platform_data acpi_gmin_plat = {
 	.v1p2_ctrl = gmin_acpi_pm_ctrl,
 	.flisclk_ctrl = gmin_acpi_pm_ctrl,
 	.csi_cfg = gmin_csi_cfg,
-	.get_vcm_ctrl = gmin_get_vcm_ctrl,
 };
 
 struct camera_sensor_platform_data *
@@ -1236,19 +1202,6 @@ gmin_camera_platform_data(struct v4l2_subdev *subdev,
 }
 EXPORT_SYMBOL_GPL(gmin_camera_platform_data);
 
-int atomisp_gmin_register_vcm_control(struct camera_vcm_control *vcmCtrl)
-{
-	if (!vcmCtrl)
-		return -EINVAL;
-
-	mutex_lock(&vcm_lock);
-	list_add_tail(&vcmCtrl->list, &vcm_devices);
-	mutex_unlock(&vcm_lock);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(atomisp_gmin_register_vcm_control);
-
 static int gmin_get_hardcoded_var(struct device *dev,
 				  struct gmin_cfg_var *varlist,
 				  const char *var8, char *out, size_t *out_len)
-- 
2.44.0

[PATCH 18/23] media: atomisp: Remove struct atomisp_platform_data

[Hans de Goede]

struct atomisp_platform_data only has a single subdevs member. Remove
this struct and replace atomisp_get_platform_data() with
atomisp_platform_get_subdevs().

Note atomisp_get_platform_data() and now atomisp_platform_get_subdevs()
always succeed, so while at it also remove unnecessary error checking.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 .../atomisp/include/linux/atomisp_platform.h  |  6 +---
 .../media/atomisp/pci/atomisp_gmin_platform.c | 36 +++++++++----------
 .../media/atomisp/pci/atomisp_internal.h      |  1 -
 .../staging/media/atomisp/pci/atomisp_v4l2.c  | 16 ++-------
 4 files changed, 19 insertions(+), 40 deletions(-)

diff --git a/drivers/staging/media/atomisp/include/linux/atomisp_platform.h b/drivers/staging/media/atomisp/include/linux/atomisp_platform.h
index 098859bde86f..0e3f6fb78483 100644
--- a/drivers/staging/media/atomisp/include/linux/atomisp_platform.h
+++ b/drivers/staging/media/atomisp/include/linux/atomisp_platform.h
@@ -115,10 +115,6 @@ struct intel_v4l2_subdev_table {
 	struct v4l2_subdev *subdev;
 };
 
-struct atomisp_platform_data {
-	struct intel_v4l2_subdev_table *subdevs;
-};
-
 /*
  *  Sensor of external ISP can send multiple steams with different mipi data
  * type in the same virtual channel. This information needs to come from the
@@ -173,7 +169,7 @@ struct camera_mipi_info {
 	const u32                       *metadata_effective_width;
 };
 
-const struct atomisp_platform_data *atomisp_get_platform_data(void);
+const struct intel_v4l2_subdev_table *atomisp_platform_get_subdevs(void);
 int atomisp_register_sensor_no_gmin(struct v4l2_subdev *subdev, u32 lanes,
 				    enum atomisp_input_format format,
 				    enum atomisp_bayer_order bayer_order);
diff --git a/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c b/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
index e12354820a3a..e176483df301 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_gmin_platform.c
@@ -127,17 +127,13 @@ static int gmin_v2p8_enable_count;
 /* The atomisp uses subdev==NULL for the end-of-list marker, so leave space. */
 static struct intel_v4l2_subdev_table pdata_subdevs[MAX_SUBDEVS + 1];
 
-static const struct atomisp_platform_data pdata = {
-	.subdevs = pdata_subdevs,
-};
-
 static struct gmin_subdev *find_gmin_subdev(struct v4l2_subdev *subdev);
 
-const struct atomisp_platform_data *atomisp_get_platform_data(void)
+const struct intel_v4l2_subdev_table *atomisp_platform_get_subdevs(void)
 {
-	return &pdata;
+	return pdata_subdevs;
 }
-EXPORT_SYMBOL_GPL(atomisp_get_platform_data);
+EXPORT_SYMBOL_GPL(atomisp_platform_get_subdevs);
 
 int atomisp_register_i2c_module(struct v4l2_subdev *subdev,
 				struct camera_sensor_platform_data *plat_data)
@@ -164,7 +160,7 @@ int atomisp_register_i2c_module(struct v4l2_subdev *subdev,
 	adev->power.flags.power_resources = 0;
 
 	for (i = 0; i < MAX_SUBDEVS; i++)
-		if (!pdata.subdevs[i].subdev)
+		if (!pdata_subdevs[i].subdev)
 			break;
 
 	if (i == MAX_SUBDEVS)
@@ -179,9 +175,9 @@ int atomisp_register_i2c_module(struct v4l2_subdev *subdev,
 	if (!gs)
 		return -ENODEV;
 
-	pdata.subdevs[i].port = gs->csi_port;
-	pdata.subdevs[i].lanes = gs->csi_lanes;
-	pdata.subdevs[i].subdev = subdev;
+	pdata_subdevs[i].port = gs->csi_port;
+	pdata_subdevs[i].lanes = gs->csi_lanes;
+	pdata_subdevs[i].subdev = subdev;
 	return 0;
 }
 EXPORT_SYMBOL_GPL(atomisp_register_i2c_module);
@@ -194,9 +190,9 @@ int atomisp_gmin_remove_subdev(struct v4l2_subdev *sd)
 		return 0;
 
 	for (i = 0; i < MAX_SUBDEVS; i++) {
-		if (pdata.subdevs[i].subdev == sd) {
+		if (pdata_subdevs[i].subdev == sd) {
 			for (j = i + 1; j <= MAX_SUBDEVS; j++)
-				pdata.subdevs[j - 1] = pdata.subdevs[j];
+				pdata_subdevs[j - 1] = pdata_subdevs[j];
 		}
 		if (gmin_subdevs[i].subdev == sd) {
 			if (gmin_subdevs[i].gpio0)
@@ -1125,7 +1121,7 @@ int atomisp_register_sensor_no_gmin(struct v4l2_subdev *subdev, u32 lanes,
 	}
 
 	for (i = 0; i < MAX_SUBDEVS; i++)
-		if (!pdata.subdevs[i].subdev)
+		if (!pdata_subdevs[i].subdev)
 			break;
 
 	if (i >= MAX_SUBDEVS) {
@@ -1137,9 +1133,9 @@ int atomisp_register_sensor_no_gmin(struct v4l2_subdev *subdev, u32 lanes,
 	if (ret)
 		return ret;
 
-	pdata.subdevs[i].port = port;
-	pdata.subdevs[i].lanes = lanes;
-	pdata.subdevs[i].subdev = subdev;
+	pdata_subdevs[i].port = port;
+	pdata_subdevs[i].lanes = lanes;
+	pdata_subdevs[i].subdev = subdev;
 	return 0;
 }
 EXPORT_SYMBOL_GPL(atomisp_register_sensor_no_gmin);
@@ -1149,12 +1145,12 @@ void atomisp_unregister_subdev(struct v4l2_subdev *subdev)
 	int i;
 
 	for (i = 0; i < MAX_SUBDEVS; i++) {
-		if (pdata.subdevs[i].subdev != subdev)
+		if (pdata_subdevs[i].subdev != subdev)
 			continue;
 
 		camera_sensor_csi_free(subdev);
-		pdata.subdevs[i].subdev = NULL;
-		pdata.subdevs[i].port = 0;
+		pdata_subdevs[i].subdev = NULL;
+		pdata_subdevs[i].port = 0;
 		break;
 	}
 }
diff --git a/drivers/staging/media/atomisp/pci/atomisp_internal.h b/drivers/staging/media/atomisp/pci/atomisp_internal.h
index 9227399502b9..9c2bc5332fa4 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_internal.h
+++ b/drivers/staging/media/atomisp/pci/atomisp_internal.h
@@ -175,7 +175,6 @@ struct atomisp_device {
 	struct media_device media_dev;
 	struct atomisp_sub_device asd;
 	struct v4l2_async_notifier notifier;
-	struct atomisp_platform_data *pdata;
 	void *mmu_l1_base;
 	void __iomem *base;
 	const struct firmware *firmware;
diff --git a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
index 470c123256a7..4a87401a5389 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_v4l2.c
@@ -783,27 +783,20 @@ int atomisp_csi_lane_config(struct atomisp_device *isp)
 
 static int atomisp_subdev_probe(struct atomisp_device *isp)
 {
-	const struct atomisp_platform_data *pdata;
-	struct intel_v4l2_subdev_table *subdevs;
+	const struct intel_v4l2_subdev_table *subdevs;
 	int ret, mipi_port;
 
 	ret = atomisp_csi2_bridge_parse_firmware(isp);
 	if (ret)
 		return ret;
 
-	pdata = atomisp_get_platform_data();
-	if (!pdata) {
-		dev_err(isp->dev, "no platform data available\n");
-		return 0;
-	}
-
 	/*
 	 * TODO: this is left here for now to allow testing atomisp-sensor
 	 * drivers which are still using the atomisp_gmin_platform infra before
 	 * converting them to standard v4l2 sensor drivers using runtime-pm +
 	 * ACPI for pm and v4l2_async_register_subdev_sensor() registration.
 	 */
-	for (subdevs = pdata->subdevs; subdevs->subdev; ++subdevs) {
+	for (subdevs = atomisp_platform_get_subdevs(); subdevs->subdev; ++subdevs) {
 		ret = v4l2_device_register_subdev(&isp->v4l2_dev, subdevs->subdev);
 		if (ret)
 			continue;
@@ -1186,7 +1179,6 @@ static void atomisp_pm_uninit(struct atomisp_device *isp)
 
 static int atomisp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
-	const struct atomisp_platform_data *pdata;
 	struct atomisp_device *isp;
 	unsigned int start;
 	u32 val;
@@ -1195,10 +1187,6 @@ static int atomisp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *i
 	/* Pointer to struct device. */
 	atomisp_dev = &pdev->dev;
 
-	pdata = atomisp_get_platform_data();
-	if (!pdata)
-		dev_warn(&pdev->dev, "no platform data available\n");
-
 	start = pci_resource_start(pdev, ATOM_ISP_PCI_BAR);
 	dev_dbg(&pdev->dev, "start: 0x%x\n", start);
 
-- 
2.44.0

[PATCH 19/23] media: atomisp: Remove clearing of ISP crop / compose rectangles on file release

[Hans de Goede]

There is no need to clear the ISP sink-pad crop and source-pad
compose rectangles  on release of the /dev/video# file.

Both will be reset by atomisp_set_fmt() which is guaranteed to
get called by atomisp_queue_setup() (if not called already)
before another stream starts and thus before these selections
are used again.

Also the file injection support the comment talks about has long
been dropped from the driver.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 .../staging/media/atomisp/pci/atomisp_fops.c  | 21 -------------------
 1 file changed, 21 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_fops.c b/drivers/staging/media/atomisp/pci/atomisp_fops.c
index 0d0c1649eaad..50c4123ba006 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_fops.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_fops.c
@@ -539,7 +539,6 @@ static int atomisp_release(struct file *file)
 	struct atomisp_video_pipe *pipe = atomisp_to_video_pipe(vdev);
 	struct atomisp_sub_device *asd = pipe->asd;
 	struct v4l2_subdev_fh fh;
-	struct v4l2_rect clear_compose = {0};
 
 	v4l2_fh_init(&fh.vfh, vdev);
 
@@ -552,21 +551,6 @@ static int atomisp_release(struct file *file)
 
 	pipe->users--;
 
-	/*
-	 * A little trick here:
-	 * file injection input resolution is recorded in the sink pad,
-	 * therefore can not be cleared when releaseing one device node.
-	 * The sink pad setting can only be cleared when all device nodes
-	 * get released.
-	 */
-	{
-		struct v4l2_mbus_framefmt isp_sink_fmt = { 0 };
-
-		atomisp_subdev_set_ffmt(&asd->subdev, fh.state,
-					V4L2_SUBDEV_FORMAT_ACTIVE,
-					ATOMISP_SUBDEV_PAD_SINK, &isp_sink_fmt);
-	}
-
 	atomisp_css_free_stat_buffers(asd);
 	atomisp_free_internal_buffers(asd);
 
@@ -577,11 +561,6 @@ static int atomisp_release(struct file *file)
 	if (pm_runtime_put_sync(vdev->v4l2_dev->dev) < 0)
 		dev_err(isp->dev, "Failed to power off device\n");
 
-	atomisp_subdev_set_selection(&asd->subdev, fh.state,
-				     V4L2_SUBDEV_FORMAT_ACTIVE,
-				     ATOMISP_SUBDEV_PAD_SOURCE,
-				     V4L2_SEL_TGT_COMPOSE, 0,
-				     &clear_compose);
 	mutex_unlock(&isp->mutex);
 	return 0;
 }
-- 
2.44.0

[PATCH 20/23] media: atomisp: Remove empty s_power() op from ISP subdev

[Hans de Goede]

Remove the empty isp_subdev_set_power() callback.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/staging/media/atomisp/pci/atomisp_subdev.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_subdev.c b/drivers/staging/media/atomisp/pci/atomisp_subdev.c
index 1bb33460210c..3a3e84a035e2 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_subdev.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_subdev.c
@@ -149,18 +149,6 @@ static long isp_subdev_ioctl(struct v4l2_subdev *sd,
 	return 0;
 }
 
-/*
- * isp_subdev_set_power - Power on/off the CCDC module
- * @sd: ISP V4L2 subdevice
- * @on: power on/off
- *
- * Return 0 on success or a negative error code otherwise.
- */
-static int isp_subdev_set_power(struct v4l2_subdev *sd, int on)
-{
-	return 0;
-}
-
 static int isp_subdev_subscribe_event(struct v4l2_subdev *sd,
 				      struct v4l2_fh *fh,
 				      struct v4l2_event_subscription *sub)
@@ -596,7 +584,7 @@ static int isp_subdev_set_format(struct v4l2_subdev *sd,
 
 /* V4L2 subdev core operations */
 static const struct v4l2_subdev_core_ops isp_subdev_v4l2_core_ops = {
-	.ioctl = isp_subdev_ioctl, .s_power = isp_subdev_set_power,
+	.ioctl = isp_subdev_ioctl,
 	.subscribe_event = isp_subdev_subscribe_event,
 	.unsubscribe_event = isp_subdev_unsubscribe_event,
 };
-- 
2.44.0

[PATCH 21/23] media: atomisp: Remove empty s_stream() op from CSI subdev

[Hans de Goede]

Remove the empty csi2_set_stream() callback and remove the now
empty csi2_video_ops struct.

While at it also remove the empty csi2_core_ops struct.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 .../staging/media/atomisp/pci/atomisp_csi2.c  | 23 -------------------
 1 file changed, 23 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_csi2.c b/drivers/staging/media/atomisp/pci/atomisp_csi2.c
index e939a09a279b..9288910eeb6c 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_csi2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_csi2.c
@@ -141,27 +141,6 @@ static int csi2_set_format(struct v4l2_subdev *sd,
 				     &fmt->format);
 }
 
-/*
- * csi2_set_stream - Enable/Disable streaming on the CSI2 module
- * @sd: ISP CSI2 V4L2 subdevice
- * @enable: Enable/disable stream (1/0)
- *
- * Return 0 on success or a negative error code otherwise.
- */
-static int csi2_set_stream(struct v4l2_subdev *sd, int enable)
-{
-	return 0;
-}
-
-/* subdev core operations */
-static const struct v4l2_subdev_core_ops csi2_core_ops = {
-};
-
-/* subdev video operations */
-static const struct v4l2_subdev_video_ops csi2_video_ops = {
-	.s_stream = csi2_set_stream,
-};
-
 /* subdev pad operations */
 static const struct v4l2_subdev_pad_ops csi2_pad_ops = {
 	.enum_mbus_code = csi2_enum_mbus_code,
@@ -172,8 +151,6 @@ static const struct v4l2_subdev_pad_ops csi2_pad_ops = {
 
 /* subdev operations */
 static const struct v4l2_subdev_ops csi2_ops = {
-	.core = &csi2_core_ops,
-	.video = &csi2_video_ops,
 	.pad = &csi2_pad_ops,
 };
 
-- 
2.44.0

[PATCH 22/23] media: atomisp: Cleanup atomisp_isr_thread() spinlock handling

[Hans de Goede]

Refactor the code a tiny bit to avoid the need to have 2 different
paths with spin_unlock_irqrestore() in there.

While at it also remove the non helpful dev_dbg() message.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/staging/media/atomisp/pci/atomisp_cmd.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index 335f142c1fc5..2c95fd6505e0 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -959,18 +959,15 @@ irqreturn_t atomisp_isr_thread(int irq, void *isp_ptr)
 {
 	struct atomisp_device *isp = isp_ptr;
 	unsigned long flags;
-
-	dev_dbg(isp->dev, ">%s\n", __func__);
+	bool streaming;
 
 	spin_lock_irqsave(&isp->lock, flags);
-
-	if (!isp->asd.streaming) {
-		spin_unlock_irqrestore(&isp->lock, flags);
-		return IRQ_HANDLED;
-	}
-
+	streaming = isp->asd.streaming;
 	spin_unlock_irqrestore(&isp->lock, flags);
 
+	if (!streaming)
+		return IRQ_HANDLED;
+
 	/*
 	 * The standard CSS2.0 API tells the following calling sequence of
 	 * dequeue ready buffers:
-- 
2.44.0

[PATCH 23/23] media: atomisp: Remove setting of f->fmt.pix.priv from atomisp_set_fmt()

[Hans de Goede]

This value is not used by the driver, only returned to userspace and
userspace should not rely on / use the priv fields. Drop setting this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/staging/media/atomisp/pci/atomisp_cmd.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index 2c95fd6505e0..4ecaded57b9a 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -4412,8 +4412,6 @@ int atomisp_set_fmt(struct video_device *vdev, struct v4l2_format *f)
 	atomisp_fill_pix_format(&pipe->pix, f->fmt.pix.width, f->fmt.pix.height, format_bridge);
 
 	f->fmt.pix = pipe->pix;
-	f->fmt.pix.priv = PAGE_ALIGN(pipe->pix.width *
-				     pipe->pix.height * 2);
 
 	dev_dbg(isp->dev, "%s: %dx%d, image size: %d, %d bytes per line\n",
 		__func__,
-- 
2.44.0

Re: [PATCH 11/23] media: atomisp: Remove test pattern generator (TPG) support

[Andy Shevchenko]

On Mon, Apr 15, 2024 at 02:02:08PM +0200, Hans de Goede wrote:
> The TPG support registers a v4l2-subdev for this, but this is not part of
> the media-controller graph in any way. After manually selecting the TPG
> as input using the s_input ioctl it does not work.
> 
> Several supported sensors have their own working TPG and using the sensor's
> TPG means that the same data-flow is used as with actual sensors rather
> then the quite different data-flow from the ISP's builtin TPG.
> 
> Remove the broken TPG support, when a test-pattern is needed for testing
> a sensor's TPG can be used. Using a sensor's TPG is actually better for
> testing since then the actual normal data-flow is being tested.

...

> +	if (mipi_info)
> +		fc = atomisp_find_in_fmt_conv_by_atomisp_in_fmt(mipi_info->input_format);
>  
> +	if (!fc)
> +		fc = atomisp_find_in_fmt_conv(
> +			 atomisp_subdev_get_ffmt(&asd->subdev,
> +						 NULL, V4L2_SUBDEV_FORMAT_ACTIVE,
> +						 ATOMISP_SUBDEV_PAD_SINK)->code);

While it was in the original code, this is ugly. Can we split this to two
assignments?

> +	if (!fc)
> +		return -EINVAL;
> +	if (format->sh_fmt == IA_CSS_FRAME_FORMAT_RAW &&

> +	    raw_output_format_match_input(fc->atomisp_in_fmt,
> +					  pix->pixelformat))

Now a single line?

> +		return -EINVAL;

...

>  		unsigned int hblank_cycles = 100,
>  		vblank_lines = 6,
>  		width,

Urgh... These comma operators probably is subject to replace with separate
definitions or being grouped on a single line (as it suppose to be in this
case).

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH 13/23] media: atomisp: Drop the atomisp custom lm3554 flash driver

[Andy Shevchenko]

On Mon, Apr 15, 2024 at 02:02:10PM +0200, Hans de Goede wrote:
> Drop the atomisp custom lm3554 flash driver, support for flash drivers
> using the custom atomisp flash interface is going to be removed from
> the atomisp driver.
> 
> If flash supports for the lm3554 turns out to be necessary on some
> atomisp devices in the future then this should be re-implemented
> using the new include/linux/led-class-flash.h APIs.
> 
> The atomisp specific lm3554 driver could still be usable as a reference
> for how to use / driver the lm3554 for a future re-implementation
> using standardized APIs, but for that it can be retrieved from
> the git history.

FYI: The driver is already there as drivers/leds/leds-lm355x.c.
It might still need the binding to v4l2 subsystem, but still...

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH 13/23] media: atomisp: Drop the atomisp custom lm3554 flash driver

[Andy Shevchenko]

On Mon, Apr 15, 2024 at 05:49:33PM +0300, Andy Shevchenko wrote:
> On Mon, Apr 15, 2024 at 02:02:10PM +0200, Hans de Goede wrote:
> > Drop the atomisp custom lm3554 flash driver, support for flash drivers
> > using the custom atomisp flash interface is going to be removed from
> > the atomisp driver.
> > 
> > If flash supports for the lm3554 turns out to be necessary on some
> > atomisp devices in the future then this should be re-implemented
> > using the new include/linux/led-class-flash.h APIs.
> > 
> > The atomisp specific lm3554 driver could still be usable as a reference
> > for how to use / driver the lm3554 for a future re-implementation
> > using standardized APIs, but for that it can be retrieved from
> > the git history.
> 
> FYI: The driver is already there as drivers/leds/leds-lm355x.c.
> It might still need the binding to v4l2 subsystem, but still...

Wow, it even *was* there when AtomISP has been added:

 commit b98d13c725920e9ab7696e0d7d19c4db1bdf6737
 Author: G.Shark Jeong <gshark.jeong@gmail.com>
 Date:   Wed Sep 5 15:05:58 2012 +0800

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH 14/23] media: atomisp: Drop custom flash support

[Andy Shevchenko]

On Mon, Apr 15, 2024 at 02:02:11PM +0200, Hans de Goede wrote:
> Remove the custom flash handling from the atomisp driver. There are only
> very few Bay Trail / Cherry Trail devices with flash and if those will

"only very few" sounds to me as an oxymoron. "only few" or "very few" —
I believe you meant the former.

> ever get supported then this should be done through the new standard
> include/linux/led-class-flash.h APIs instead of with atomisp specific
> custom APIs.


-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH 16/23] media: atomisp: Drop intel_v4l2_subdev_type

[Andy Shevchenko]

On Mon, Apr 15, 2024 at 02:02:13PM +0200, Hans de Goede wrote:
> intel_v4l2_subdev_type / atomisp_input_subdev.type now always is
> RAW_CAMERA, drop it.

...

> -	for (subdevs = pdata->subdevs; subdevs->type; ++subdevs) {
> +	for (subdevs = pdata->subdevs; subdevs->subdev; ++subdevs) {

While at it, use postincrement.

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH 00/23] media: atomisp: Further media-controller related fixes + dead code removal

[Andy Shevchenko]

On Mon, Apr 15, 2024 at 02:01:57PM +0200, Hans de Goede wrote:
> Hi all,
> 
> This patch-set contains a couple of atomisp driver fixes for issues which
> I found while working on a libcamera pipeline handler for the atomisp
> (and thus controlling the atomisp driver in a more media-controller centric
> fashion).
> 
> Patches 1-8 are more or less prep work for fixing an ABBA deadlock in
> atomisp_link_setup() in patch 9.
> 
> Diving into the code for this made my hands itch to remove of bunch of
> atomisp custom internal APIs for things like flash support, so the rest
> of the series is just removing a whole bunch of dead / unwanted code.
> 
> This series is also available here:
> https://git.kernel.org/pub/scm/linux/kernel/git/hansg/linux.git/log/?h=media-atomisp
> 
> I'll do a forced push there addressing any review-comments + adding
> tags before adding a signed-tag for a pull-request to Mauro for this.

Thank you for doing this nice cleanup!

For non-commented,
Reviewed-by: Andy Shevchenko <andy@kernel.org>
otherwise feel free to add it, if you agree on the suggested improvements.

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH 11/23] media: atomisp: Remove test pattern generator (TPG) support

[Hans de Goede]

Hi Andy,

Thank you for all the reviews!

On 4/15/24 4:40 PM, Andy Shevchenko wrote:
> On Mon, Apr 15, 2024 at 02:02:08PM +0200, Hans de Goede wrote:
>> The TPG support registers a v4l2-subdev for this, but this is not part of
>> the media-controller graph in any way. After manually selecting the TPG
>> as input using the s_input ioctl it does not work.
>>
>> Several supported sensors have their own working TPG and using the sensor's
>> TPG means that the same data-flow is used as with actual sensors rather
>> then the quite different data-flow from the ISP's builtin TPG.
>>
>> Remove the broken TPG support, when a test-pattern is needed for testing
>> a sensor's TPG can be used. Using a sensor's TPG is actually better for
>> testing since then the actual normal data-flow is being tested.
> 
> ...
> 
>> +	if (mipi_info)
>> +		fc = atomisp_find_in_fmt_conv_by_atomisp_in_fmt(mipi_info->input_format);
>>  
>> +	if (!fc)
>> +		fc = atomisp_find_in_fmt_conv(
>> +			 atomisp_subdev_get_ffmt(&asd->subdev,
>> +						 NULL, V4L2_SUBDEV_FORMAT_ACTIVE,
>> +						 ATOMISP_SUBDEV_PAD_SINK)->code);
> 
> While it was in the original code, this is ugly. Can we split this to two
> assignments?

Ack, fixed.

> 
>> +	if (!fc)
>> +		return -EINVAL;
>> +	if (format->sh_fmt == IA_CSS_FRAME_FORMAT_RAW &&
> 
>> +	    raw_output_format_match_input(fc->atomisp_in_fmt,
>> +					  pix->pixelformat))
> 
> Now a single line?

Ack, fixed.

> 
>> +		return -EINVAL;
> 
> ...
> 
>>  		unsigned int hblank_cycles = 100,
>>  		vblank_lines = 6,
>>  		width,
> 
> Urgh... These comma operators probably is subject to replace with separate
> definitions or being grouped on a single line (as it suppose to be in this
> case).

That indeed is ugly, but fixing this is out of scope for this patch,
so I've added an extra patch to the set to address this:

https://git.kernel.org/pub/scm/linux/kernel/git/hansg/linux.git/commit/?h=media-atomisp&id=48d93af9d9b0fd40a21a656cb8cd8e25700bfed5

Regards,

Hans

Re: [PATCH 11/23] media: atomisp: Remove test pattern generator (TPG) support

[Andy Shevchenko]

On Tue, Apr 16, 2024 at 12:25 PM Hans de Goede <hdegoede@redhat.com> wrote:
> On 4/15/24 4:40 PM, Andy Shevchenko wrote:
> > On Mon, Apr 15, 2024 at 02:02:08PM +0200, Hans de Goede wrote:

...

> >>              unsigned int hblank_cycles = 100,
> >>              vblank_lines = 6,
> >>              width,
> >
> > Urgh... These comma operators probably is subject to replace with separate
> > definitions or being grouped on a single line (as it suppose to be in this
> > case).
>
> That indeed is ugly, but fixing this is out of scope for this patch,
> so I've added an extra patch to the set to address this:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/hansg/linux.git/commit/?h=media-atomisp&id=48d93af9d9b0fd40a21a656cb8cd8e25700bfed5

WFM, thanks!

Btw (yes, I see you tagged that already, so just FYI then)
(1 + (stream->config.pixels_per_clock == 2));
is an interesting way of using

 (stream->config.pixels_per_clock == 2) ? 2 : 1);

which likely can produce slightly better code (due to use of constant
2 twice), although it is a pure speculation by me.

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH 11/23] media: atomisp: Remove test pattern generator (TPG) support

[Kieran Bingham]

Quoting Andy Shevchenko (2024-04-16 14:34:45)
> On Tue, Apr 16, 2024 at 12:25 PM Hans de Goede <hdegoede@redhat.com> wrote:
> > On 4/15/24 4:40 PM, Andy Shevchenko wrote:
> > > On Mon, Apr 15, 2024 at 02:02:08PM +0200, Hans de Goede wrote:
> 
> ...
> 
> > >>              unsigned int hblank_cycles = 100,
> > >>              vblank_lines = 6,
> > >>              width,
> > >
> > > Urgh... These comma operators probably is subject to replace with separate
> > > definitions or being grouped on a single line (as it suppose to be in this
> > > case).
> >
> > That indeed is ugly, but fixing this is out of scope for this patch,
> > so I've added an extra patch to the set to address this:
> >
> > https://git.kernel.org/pub/scm/linux/kernel/git/hansg/linux.git/commit/?h=media-atomisp&id=48d93af9d9b0fd40a21a656cb8cd8e25700bfed5
> 
> WFM, thanks!
> 
> Btw (yes, I see you tagged that already, so just FYI then)
> (1 + (stream->config.pixels_per_clock == 2));
> is an interesting way of using
> 
>  (stream->config.pixels_per_clock == 2) ? 2 : 1);
> 
> which likely can produce slightly better code (due to use of constant
> 2 twice), although it is a pure speculation by me.
> 
> -- 
> With Best Regards,
> Andy Shevchenko

Re: [PATCH 11/23] media: atomisp: Remove test pattern generator (TPG) support

[Kieran Bingham]

Quoting Kieran Bingham (2024-04-16 15:37:39)
> Quoting Andy Shevchenko (2024-04-16 14:34:45)
> > On Tue, Apr 16, 2024 at 12:25 PM Hans de Goede <hdegoede@redhat.com> wrote:
> > > On 4/15/24 4:40 PM, Andy Shevchenko wrote:
> > > > On Mon, Apr 15, 2024 at 02:02:08PM +0200, Hans de Goede wrote:
> > 
> > ...
> > 
> > > >>              unsigned int hblank_cycles = 100,
> > > >>              vblank_lines = 6,
> > > >>              width,
> > > >
> > > > Urgh... These comma operators probably is subject to replace with separate
> > > > definitions or being grouped on a single line (as it suppose to be in this
> > > > case).
> > >
> > > That indeed is ugly, but fixing this is out of scope for this patch,
> > > so I've added an extra patch to the set to address this:
> > >
> > > https://git.kernel.org/pub/scm/linux/kernel/git/hansg/linux.git/commit/?h=media-atomisp&id=48d93af9d9b0fd40a21a656cb8cd8e25700bfed5
> > 
> > WFM, thanks!
> > 
> > Btw (yes, I see you tagged that already, so just FYI then)
> > (1 + (stream->config.pixels_per_clock == 2));
> > is an interesting way of using
> > 
> >  (stream->config.pixels_per_clock == 2) ? 2 : 1);
> > 
> > which likely can produce slightly better code (due to use of constant
> > 2 twice), although it is a pure speculation by me.

Ooops, I didn't mean to send that. Well I wrote something but then
closed it when I wasn't going to bother and instead some how sent an
empty mail ..

So now I guess I should actually say what I wasn't going to end up
saying? haha.

This was too intriguing (to me) so I threw it in godbolt, and for
various levels of compiler optimsations, both options generate the same
code, even with -O0. Of course the different optimsation levels produce
different code, but the two options above always match at the given
level.

Fun with godbolt ;-)

https://godbolt.org/z/hYjrvK6hn

> > 
> > -- 
> > With Best Regards,
> > Andy Shevchenko

Re: [PATCH 11/23] media: atomisp: Remove test pattern generator (TPG) support

[Andy Shevchenko]

On Tue, Apr 16, 2024 at 03:40:43PM +0100, Kieran Bingham wrote:
> Quoting Kieran Bingham (2024-04-16 15:37:39)
> > Quoting Andy Shevchenko (2024-04-16 14:34:45)
> > > On Tue, Apr 16, 2024 at 12:25 PM Hans de Goede <hdegoede@redhat.com> wrote:
> > > > On 4/15/24 4:40 PM, Andy Shevchenko wrote:
> > > > > On Mon, Apr 15, 2024 at 02:02:08PM +0200, Hans de Goede wrote:

...

> > > > >>              unsigned int hblank_cycles = 100,
> > > > >>              vblank_lines = 6,
> > > > >>              width,
> > > > >
> > > > > Urgh... These comma operators probably is subject to replace with separate
> > > > > definitions or being grouped on a single line (as it suppose to be in this
> > > > > case).
> > > >
> > > > That indeed is ugly, but fixing this is out of scope for this patch,
> > > > so I've added an extra patch to the set to address this:
> > > >
> > > > https://git.kernel.org/pub/scm/linux/kernel/git/hansg/linux.git/commit/?h=media-atomisp&id=48d93af9d9b0fd40a21a656cb8cd8e25700bfed5
> > > 
> > > WFM, thanks!
> > > 
> > > Btw (yes, I see you tagged that already, so just FYI then)
> > > (1 + (stream->config.pixels_per_clock == 2));
> > > is an interesting way of using
> > > 
> > >  (stream->config.pixels_per_clock == 2) ? 2 : 1);
> > > 
> > > which likely can produce slightly better code (due to use of constant
> > > 2 twice), although it is a pure speculation by me.
> 
> Ooops, I didn't mean to send that. Well I wrote something but then
> closed it when I wasn't going to bother and instead some how sent an
> empty mail ..
> 
> So now I guess I should actually say what I wasn't going to end up
> saying? haha.
> 
> This was too intriguing (to me) so I threw it in godbolt, and for
> various levels of compiler optimsations, both options generate the same
> code, even with -O0. Of course the different optimsation levels produce
> different code, but the two options above always match at the given
> level.

Thanks for playing with this.

The issue with the original code is readability and potential oddity about
boolean to integer conversion. That said, I prefer my variant for the sake
of clarity.

> Fun with godbolt ;-)
> 
> https://godbolt.org/z/hYjrvK6hn

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH 11/23] media: atomisp: Remove test pattern generator (TPG) support

[Andy Shevchenko]

On Tue, Apr 16, 2024 at 05:50:34PM +0300, Andy Shevchenko wrote:
> On Tue, Apr 16, 2024 at 03:40:43PM +0100, Kieran Bingham wrote:

...

> Thanks for playing with this.
> 
> The issue with the original code is readability and potential oddity about
> boolean to integer conversion. That said, I prefer my variant for the sake
> of clarity.

Hans, in case you are going to update your PR once again, I still think the
LM3554 driver removal commit message may be improved by pointing out to the
existing driver.

-- 
With Best Regards,
Andy Shevchenko