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From: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
To: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev
Cc: Yong Deng <yong.deng@magewell.com>,
	Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Samuel Holland <samuel@sholland.org>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: [PATCH v4 36/45] media: sun6i-csi: Move hardware control to the bridge
Date: Fri, 15 Apr 2022 17:28:02 +0200	[thread overview]
Message-ID: <20220415152811.636419-37-paul.kocialkowski@bootlin.com> (raw)
In-Reply-To: <20220415152811.636419-1-paul.kocialkowski@bootlin.com>

In order to support the isp workflow, we need to be able to configure
the hardware from the bridge when the capture device is not used.

As a result, move all hardware configuration calls from capture to
the bridge. Only the window configuration part (which is specific
to using capture) remains there.

This effectively opens the way for hooking the bridge to the
isp in the future.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
---
 .../sunxi/sun6i-csi/sun6i_csi_bridge.c        | 227 ++++++++++++++++
 .../sunxi/sun6i-csi/sun6i_csi_capture.c       | 249 +-----------------
 .../sunxi/sun6i-csi/sun6i_csi_capture.h       |   3 +
 3 files changed, 237 insertions(+), 242 deletions(-)

diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_bridge.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_bridge.c
index 79263a421dd2..ec3e04353106 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_bridge.c
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_bridge.c
@@ -174,6 +174,205 @@ sun6i_csi_bridge_format_find(u32 mbus_code)
 	return NULL;
 }
 
+/* Bridge */
+
+static void sun6i_csi_bridge_irq_enable(struct sun6i_csi_device *csi_dev)
+{
+	struct regmap *regmap = csi_dev->regmap;
+
+	regmap_write(regmap, SUN6I_CSI_CH_INT_EN_REG,
+		     SUN6I_CSI_CH_INT_EN_VS |
+		     SUN6I_CSI_CH_INT_EN_HB_OF |
+		     SUN6I_CSI_CH_INT_EN_FIFO2_OF |
+		     SUN6I_CSI_CH_INT_EN_FIFO1_OF |
+		     SUN6I_CSI_CH_INT_EN_FIFO0_OF |
+		     SUN6I_CSI_CH_INT_EN_FD |
+		     SUN6I_CSI_CH_INT_EN_CD);
+}
+
+static void sun6i_csi_bridge_irq_disable(struct sun6i_csi_device *csi_dev)
+{
+	struct regmap *regmap = csi_dev->regmap;
+
+	regmap_write(regmap, SUN6I_CSI_CH_INT_EN_REG, 0);
+}
+
+static void sun6i_csi_bridge_irq_clear(struct sun6i_csi_device *csi_dev)
+{
+	struct regmap *regmap = csi_dev->regmap;
+
+	regmap_write(regmap, SUN6I_CSI_CH_INT_EN_REG, 0);
+	regmap_write(regmap, SUN6I_CSI_CH_INT_STA_REG,
+		     SUN6I_CSI_CH_INT_STA_CLEAR);
+}
+
+static void sun6i_csi_bridge_enable(struct sun6i_csi_device *csi_dev)
+{
+	struct regmap *regmap = csi_dev->regmap;
+
+	regmap_update_bits(regmap, SUN6I_CSI_EN_REG, SUN6I_CSI_EN_CSI_EN,
+			   SUN6I_CSI_EN_CSI_EN);
+
+	regmap_update_bits(regmap, SUN6I_CSI_CAP_REG, SUN6I_CSI_CAP_VCAP_ON,
+			   SUN6I_CSI_CAP_VCAP_ON);
+}
+
+static void sun6i_csi_bridge_disable(struct sun6i_csi_device *csi_dev)
+{
+	struct regmap *regmap = csi_dev->regmap;
+
+	regmap_update_bits(regmap, SUN6I_CSI_CAP_REG, SUN6I_CSI_CAP_VCAP_ON, 0);
+	regmap_update_bits(regmap, SUN6I_CSI_EN_REG, SUN6I_CSI_EN_CSI_EN, 0);
+}
+
+static void
+sun6i_csi_bridge_configure_interface(struct sun6i_csi_device *csi_dev)
+{
+	struct device *dev = csi_dev->dev;
+	struct regmap *regmap = csi_dev->regmap;
+	struct v4l2_fwnode_endpoint *endpoint =
+		&csi_dev->bridge.source_parallel.endpoint;
+	unsigned char bus_width = endpoint->bus.parallel.bus_width;
+	unsigned int flags = endpoint->bus.parallel.flags;
+	u32 field;
+	u32 value = SUN6I_CSI_IF_CFG_IF_CSI;
+
+	sun6i_csi_bridge_format(csi_dev, NULL, &field);
+
+	if (field == V4L2_FIELD_INTERLACED ||
+	    field == V4L2_FIELD_INTERLACED_TB ||
+	    field == V4L2_FIELD_INTERLACED_BT)
+		value |= SUN6I_CSI_IF_CFG_SRC_TYPE_INTERLACED |
+			 SUN6I_CSI_IF_CFG_FIELD_DT_PCLK_SHIFT(1) |
+			 SUN6I_CSI_IF_CFG_FIELD_DT_FIELD_VSYNC;
+	else
+		value |= SUN6I_CSI_IF_CFG_SRC_TYPE_PROGRESSIVE;
+
+	switch (endpoint->bus_type) {
+	case V4L2_MBUS_PARALLEL:
+		if (bus_width == 16)
+			value |= SUN6I_CSI_IF_CFG_IF_CSI_YUV_COMBINED;
+		else
+			value |= SUN6I_CSI_IF_CFG_IF_CSI_YUV_RAW;
+
+		if (flags & V4L2_MBUS_FIELD_EVEN_LOW)
+			value |= SUN6I_CSI_IF_CFG_FIELD_NEGATIVE;
+		else
+			value |= SUN6I_CSI_IF_CFG_FIELD_POSITIVE;
+
+		if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
+			value |= SUN6I_CSI_IF_CFG_VREF_POL_NEGATIVE;
+		else
+			value |= SUN6I_CSI_IF_CFG_VREF_POL_POSITIVE;
+
+		if (flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
+			value |= SUN6I_CSI_IF_CFG_HREF_POL_NEGATIVE;
+		else
+			value |= SUN6I_CSI_IF_CFG_HREF_POL_POSITIVE;
+
+		if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
+			value |= SUN6I_CSI_IF_CFG_CLK_POL_RISING;
+		else
+			value |= SUN6I_CSI_IF_CFG_CLK_POL_FALLING;
+		break;
+	case V4L2_MBUS_BT656:
+		if (bus_width == 16)
+			value |= SUN6I_CSI_IF_CFG_IF_CSI_BT1120;
+		else
+			value |= SUN6I_CSI_IF_CFG_IF_CSI_BT656;
+
+		if (flags & V4L2_MBUS_FIELD_EVEN_LOW)
+			value |= SUN6I_CSI_IF_CFG_FIELD_NEGATIVE;
+		else
+			value |= SUN6I_CSI_IF_CFG_FIELD_POSITIVE;
+
+		if (flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
+			value |= SUN6I_CSI_IF_CFG_CLK_POL_RISING;
+		else
+			value |= SUN6I_CSI_IF_CFG_CLK_POL_FALLING;
+		break;
+	default:
+		dev_warn(dev, "unsupported bus type: %d\n", endpoint->bus_type);
+		break;
+	}
+
+	switch (bus_width) {
+	case 8:
+	/* 16-bit YUV formats use a doubled width in 8-bit mode. */
+	case 16:
+		value |= SUN6I_CSI_IF_CFG_DATA_WIDTH_8;
+		break;
+	case 10:
+		value |= SUN6I_CSI_IF_CFG_DATA_WIDTH_10;
+		break;
+	case 12:
+		value |= SUN6I_CSI_IF_CFG_DATA_WIDTH_12;
+		break;
+	default:
+		dev_warn(dev, "unsupported bus width: %u\n", bus_width);
+		break;
+	}
+
+	regmap_write(regmap, SUN6I_CSI_IF_CFG_REG, value);
+}
+
+static void sun6i_csi_bridge_configure_format(struct sun6i_csi_device *csi_dev)
+{
+	struct regmap *regmap = csi_dev->regmap;
+	const struct sun6i_csi_bridge_format *bridge_format;
+	const struct sun6i_csi_capture_format *capture_format;
+	u32 mbus_code, field, pixelformat;
+	u8 input_format, input_yuv_seq, output_format;
+	u32 value = 0;
+
+	sun6i_csi_bridge_format(csi_dev, &mbus_code, &field);
+
+	bridge_format = sun6i_csi_bridge_format_find(mbus_code);
+	if (WARN_ON(!bridge_format))
+		return;
+
+	input_format = bridge_format->input_format;
+	input_yuv_seq = bridge_format->input_yuv_seq;
+
+	sun6i_csi_capture_format(csi_dev, &pixelformat, NULL);
+
+	capture_format = sun6i_csi_capture_format_find(pixelformat);
+	if (WARN_ON(!capture_format))
+		return;
+
+	if (capture_format->input_format_raw)
+		input_format = SUN6I_CSI_INPUT_FMT_RAW;
+
+	if (capture_format->input_yuv_seq_invert)
+		input_yuv_seq = bridge_format->input_yuv_seq_invert;
+
+	if (field == V4L2_FIELD_INTERLACED ||
+	    field == V4L2_FIELD_INTERLACED_TB ||
+	    field == V4L2_FIELD_INTERLACED_BT)
+		output_format = capture_format->output_format_field;
+	else
+		output_format = capture_format->output_format_frame;
+
+	value |= SUN6I_CSI_CH_CFG_OUTPUT_FMT(output_format);
+	value |= SUN6I_CSI_CH_CFG_INPUT_FMT(input_format);
+	value |= SUN6I_CSI_CH_CFG_INPUT_YUV_SEQ(input_yuv_seq);
+
+	if (field == V4L2_FIELD_TOP)
+		value |= SUN6I_CSI_CH_CFG_FIELD_SEL_FIELD0;
+	else if (field == V4L2_FIELD_BOTTOM)
+		value |= SUN6I_CSI_CH_CFG_FIELD_SEL_FIELD1;
+	else
+		value |= SUN6I_CSI_CH_CFG_FIELD_SEL_EITHER;
+
+	regmap_write(regmap, SUN6I_CSI_CH_CFG_REG, value);
+}
+
+static void sun6i_csi_bridge_configure(struct sun6i_csi_device *csi_dev)
+{
+	sun6i_csi_bridge_configure_interface(csi_dev);
+	sun6i_csi_bridge_configure_format(csi_dev);
+}
+
 /* V4L2 Subdev */
 
 static int sun6i_csi_bridge_s_stream(struct v4l2_subdev *subdev, int on)
@@ -204,6 +403,30 @@ static int sun6i_csi_bridge_s_stream(struct v4l2_subdev *subdev, int on)
 		goto disable;
 	}
 
+	/* PM */
+
+	ret = pm_runtime_resume_and_get(dev);
+	if (ret < 0)
+		return ret;
+
+	/* Clear */
+
+	sun6i_csi_bridge_irq_clear(csi_dev);
+
+	/* Configure */
+
+	sun6i_csi_bridge_configure(csi_dev);
+	sun6i_csi_capture_configure(csi_dev);
+
+	/* State Update */
+
+	sun6i_csi_capture_state_update(csi_dev);
+
+	/* Enable */
+
+	sun6i_csi_bridge_irq_enable(csi_dev);
+	sun6i_csi_bridge_enable(csi_dev);
+
 	ret = v4l2_subdev_call(source_subdev, video, s_stream, 1);
 	if (ret && ret != -ENOIOCTLCMD)
 		goto disable;
@@ -211,6 +434,10 @@ static int sun6i_csi_bridge_s_stream(struct v4l2_subdev *subdev, int on)
 	return 0;
 
 disable:
+	sun6i_csi_bridge_irq_disable(csi_dev);
+	sun6i_csi_bridge_disable(csi_dev);
+
+	pm_runtime_put(dev);
 
 	return ret;
 }
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
index b92f8aa55a92..a6619d083308 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
@@ -6,7 +6,6 @@
  */
 
 #include <linux/of.h>
-#include <linux/pm_runtime.h>
 #include <linux/regmap.h>
 
 #include <media/v4l2-device.h>
@@ -330,55 +329,6 @@ static bool sun6i_csi_capture_format_match(u32 pixelformat, u32 mbus_code)
 
 /* Capture */
 
-static void sun6i_csi_capture_irq_enable(struct sun6i_csi_device *csi_dev)
-{
-	struct regmap *regmap = csi_dev->regmap;
-
-	regmap_write(regmap, SUN6I_CSI_CH_INT_EN_REG,
-		     SUN6I_CSI_CH_INT_EN_VS |
-		     SUN6I_CSI_CH_INT_EN_HB_OF |
-		     SUN6I_CSI_CH_INT_EN_FIFO2_OF |
-		     SUN6I_CSI_CH_INT_EN_FIFO1_OF |
-		     SUN6I_CSI_CH_INT_EN_FIFO0_OF |
-		     SUN6I_CSI_CH_INT_EN_FD |
-		     SUN6I_CSI_CH_INT_EN_CD);
-}
-
-static void sun6i_csi_capture_irq_disable(struct sun6i_csi_device *csi_dev)
-{
-	struct regmap *regmap = csi_dev->regmap;
-
-	regmap_write(regmap, SUN6I_CSI_CH_INT_EN_REG, 0);
-}
-
-static void sun6i_csi_capture_irq_clear(struct sun6i_csi_device *csi_dev)
-{
-	struct regmap *regmap = csi_dev->regmap;
-
-	regmap_write(regmap, SUN6I_CSI_CH_INT_EN_REG, 0);
-	regmap_write(regmap, SUN6I_CSI_CH_INT_STA_REG,
-		     SUN6I_CSI_CH_INT_STA_CLEAR);
-}
-
-static void sun6i_csi_capture_enable(struct sun6i_csi_device *csi_dev)
-{
-	struct regmap *regmap = csi_dev->regmap;
-
-	regmap_update_bits(regmap, SUN6I_CSI_EN_REG, SUN6I_CSI_EN_CSI_EN,
-			   SUN6I_CSI_EN_CSI_EN);
-
-	regmap_update_bits(regmap, SUN6I_CSI_CAP_REG, SUN6I_CSI_CAP_VCAP_ON,
-			   SUN6I_CSI_CAP_VCAP_ON);
-}
-
-static void sun6i_csi_capture_disable(struct sun6i_csi_device *csi_dev)
-{
-	struct regmap *regmap = csi_dev->regmap;
-
-	regmap_update_bits(regmap, SUN6I_CSI_CAP_REG, SUN6I_CSI_CAP_VCAP_ON, 0);
-	regmap_update_bits(regmap, SUN6I_CSI_EN_REG, SUN6I_CSI_EN_CSI_EN, 0);
-}
-
 static void
 sun6i_csi_capture_buffer_configure(struct sun6i_csi_device *csi_dev,
 				   struct sun6i_csi_buffer *csi_buffer)
@@ -420,148 +370,7 @@ sun6i_csi_capture_buffer_configure(struct sun6i_csi_device *csi_dev,
 	}
 }
 
-static void
-sun6i_csi_capture_configure_interface(struct sun6i_csi_device *csi_dev)
-{
-	struct device *dev = csi_dev->dev;
-	struct regmap *regmap = csi_dev->regmap;
-	struct v4l2_fwnode_endpoint *endpoint =
-		&csi_dev->bridge.source_parallel.endpoint;
-	unsigned char bus_width = endpoint->bus.parallel.bus_width;
-	unsigned int flags = endpoint->bus.parallel.flags;
-	u32 pixelformat, field;
-	u32 value = SUN6I_CSI_IF_CFG_IF_CSI;
-
-	sun6i_csi_capture_format(csi_dev, &pixelformat, &field);
-
-	if (field == V4L2_FIELD_INTERLACED ||
-	    field == V4L2_FIELD_INTERLACED_TB ||
-	    field == V4L2_FIELD_INTERLACED_BT)
-		value |= SUN6I_CSI_IF_CFG_SRC_TYPE_INTERLACED |
-			 SUN6I_CSI_IF_CFG_FIELD_DT_PCLK_SHIFT(1) |
-			 SUN6I_CSI_IF_CFG_FIELD_DT_FIELD_VSYNC;
-	else
-		value |= SUN6I_CSI_IF_CFG_SRC_TYPE_PROGRESSIVE;
-
-	switch (endpoint->bus_type) {
-	case V4L2_MBUS_PARALLEL:
-		if (bus_width == 16)
-			value |= SUN6I_CSI_IF_CFG_IF_CSI_YUV_COMBINED;
-		else
-			value |= SUN6I_CSI_IF_CFG_IF_CSI_YUV_RAW;
-
-		if (flags & V4L2_MBUS_FIELD_EVEN_LOW)
-			value |= SUN6I_CSI_IF_CFG_FIELD_NEGATIVE;
-		else
-			value |= SUN6I_CSI_IF_CFG_FIELD_POSITIVE;
-
-		if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
-			value |= SUN6I_CSI_IF_CFG_VREF_POL_NEGATIVE;
-		else
-			value |= SUN6I_CSI_IF_CFG_VREF_POL_POSITIVE;
-
-		if (flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
-			value |= SUN6I_CSI_IF_CFG_HREF_POL_NEGATIVE;
-		else
-			value |= SUN6I_CSI_IF_CFG_HREF_POL_POSITIVE;
-
-		if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
-			value |= SUN6I_CSI_IF_CFG_CLK_POL_RISING;
-		else
-			value |= SUN6I_CSI_IF_CFG_CLK_POL_FALLING;
-		break;
-	case V4L2_MBUS_BT656:
-		if (bus_width == 16)
-			value |= SUN6I_CSI_IF_CFG_IF_CSI_BT1120;
-		else
-			value |= SUN6I_CSI_IF_CFG_IF_CSI_BT656;
-
-		if (flags & V4L2_MBUS_FIELD_EVEN_LOW)
-			value |= SUN6I_CSI_IF_CFG_FIELD_NEGATIVE;
-		else
-			value |= SUN6I_CSI_IF_CFG_FIELD_POSITIVE;
-
-		if (flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
-			value |= SUN6I_CSI_IF_CFG_CLK_POL_RISING;
-		else
-			value |= SUN6I_CSI_IF_CFG_CLK_POL_FALLING;
-		break;
-	default:
-		dev_warn(dev, "unsupported bus type: %d\n", endpoint->bus_type);
-		break;
-	}
-
-	switch (bus_width) {
-	case 8:
-	/* 16-bit YUV formats use a doubled width in 8-bit mode. */
-	case 16:
-		value |= SUN6I_CSI_IF_CFG_DATA_WIDTH_8;
-		break;
-	case 10:
-		value |= SUN6I_CSI_IF_CFG_DATA_WIDTH_10;
-		break;
-	case 12:
-		value |= SUN6I_CSI_IF_CFG_DATA_WIDTH_12;
-		break;
-	default:
-		dev_warn(dev, "unsupported bus width: %u\n", bus_width);
-		break;
-	}
-
-	regmap_write(regmap, SUN6I_CSI_IF_CFG_REG, value);
-}
-
-static void sun6i_csi_capture_configure_format(struct sun6i_csi_device *csi_dev)
-{
-	struct regmap *regmap = csi_dev->regmap;
-	const struct sun6i_csi_bridge_format *bridge_format;
-	const struct sun6i_csi_capture_format *capture_format;
-	u32 mbus_code, pixelformat, field;
-	u8 input_format, input_yuv_seq, output_format;
-	u32 value = 0;
-
-	sun6i_csi_capture_format(csi_dev, &pixelformat, &field);
-	sun6i_csi_bridge_format(csi_dev, &mbus_code, NULL);
-
-	bridge_format = sun6i_csi_bridge_format_find(mbus_code);
-	if (WARN_ON(!bridge_format))
-		return;
-
-	input_format = bridge_format->input_format;
-	input_yuv_seq = bridge_format->input_yuv_seq;
-
-	capture_format = sun6i_csi_capture_format_find(pixelformat);
-	if (WARN_ON(!capture_format))
-		return;
-
-	if (capture_format->input_format_raw)
-		input_format = SUN6I_CSI_INPUT_FMT_RAW;
-
-	if (capture_format->input_yuv_seq_invert)
-		input_yuv_seq = bridge_format->input_yuv_seq_invert;
-
-	if (field == V4L2_FIELD_INTERLACED ||
-	    field == V4L2_FIELD_INTERLACED_TB ||
-	    field == V4L2_FIELD_INTERLACED_BT)
-		output_format = capture_format->output_format_field;
-	else
-		output_format = capture_format->output_format_frame;
-
-	value |= SUN6I_CSI_CH_CFG_OUTPUT_FMT(output_format);
-	value |= SUN6I_CSI_CH_CFG_INPUT_FMT(input_format);
-	value |= SUN6I_CSI_CH_CFG_INPUT_YUV_SEQ(input_yuv_seq);
-
-	if (field == V4L2_FIELD_TOP)
-		value |= SUN6I_CSI_CH_CFG_FIELD_SEL_FIELD0;
-	else if (field == V4L2_FIELD_BOTTOM)
-		value |= SUN6I_CSI_CH_CFG_FIELD_SEL_FIELD1;
-	else
-		value |= SUN6I_CSI_CH_CFG_FIELD_SEL_EITHER;
-
-	regmap_write(regmap, SUN6I_CSI_CH_CFG_REG, value);
-}
-
-static void sun6i_csi_capture_configure_window(struct sun6i_csi_device *csi_dev)
+void sun6i_csi_capture_configure(struct sun6i_csi_device *csi_dev)
 {
 	struct regmap *regmap = csi_dev->regmap;
 	const struct sun6i_csi_capture_format *format;
@@ -624,13 +433,6 @@ static void sun6i_csi_capture_configure_window(struct sun6i_csi_device *csi_dev)
 		     SUN6I_CSI_CH_BUF_LEN_LUMA_LINE(luma_line));
 }
 
-static void sun6i_csi_capture_configure(struct sun6i_csi_device *csi_dev)
-{
-	sun6i_csi_capture_configure_interface(csi_dev);
-	sun6i_csi_capture_configure_format(csi_dev);
-	sun6i_csi_capture_configure_window(csi_dev);
-}
-
 /* State */
 
 static void sun6i_csi_capture_state_cleanup(struct sun6i_csi_device *csi_dev,
@@ -670,7 +472,7 @@ static void sun6i_csi_capture_state_cleanup(struct sun6i_csi_device *csi_dev,
 	spin_unlock_irqrestore(&state->lock, flags);
 }
 
-static void sun6i_csi_capture_state_update(struct sun6i_csi_device *csi_dev)
+void sun6i_csi_capture_state_update(struct sun6i_csi_device *csi_dev)
 {
 	struct sun6i_csi_capture_state *state = &csi_dev->capture.state;
 	struct sun6i_csi_buffer *csi_buffer;
@@ -803,11 +605,9 @@ static int sun6i_csi_capture_start_streaming(struct vb2_queue *queue,
 					     unsigned int count)
 {
 	struct sun6i_csi_device *csi_dev = vb2_get_drv_priv(queue);
-	struct sun6i_csi_capture *capture = &csi_dev->capture;
-	struct sun6i_csi_capture_state *state = &capture->state;
-	struct video_device *video_dev = &capture->video_dev;
+	struct sun6i_csi_capture_state *state = &csi_dev->capture.state;
+	struct video_device *video_dev = &csi_dev->capture.video_dev;
 	struct v4l2_subdev *subdev = &csi_dev->bridge.subdev;
-	struct device *dev = csi_dev->dev;
 	int ret;
 
 	state->sequence = 0;
@@ -816,41 +616,12 @@ static int sun6i_csi_capture_start_streaming(struct vb2_queue *queue,
 	if (ret < 0)
 		goto error_state;
 
-	/* PM */
-
-	ret = pm_runtime_resume_and_get(dev);
-	if (ret < 0)
-		goto error_media_pipeline;
-
-	/* Clear */
-
-	sun6i_csi_capture_irq_clear(csi_dev);
-
-	/* Configure */
-
-	sun6i_csi_capture_configure(csi_dev);
-
-	/* State Update */
-
-	sun6i_csi_capture_state_update(csi_dev);
-
-	/* Enable */
-
-	sun6i_csi_capture_irq_enable(csi_dev);
-	sun6i_csi_capture_enable(csi_dev);
-
 	ret = v4l2_subdev_call(subdev, video, s_stream, 1);
 	if (ret && ret != -ENOIOCTLCMD)
-		goto error_stream;
+		goto error_media_pipeline;
 
 	return 0;
 
-error_stream:
-	sun6i_csi_capture_disable(csi_dev);
-	sun6i_csi_capture_irq_disable(csi_dev);
-
-	pm_runtime_put(dev);
-
 error_media_pipeline:
 	media_pipeline_stop(&video_dev->entity);
 
@@ -863,18 +634,12 @@ static int sun6i_csi_capture_start_streaming(struct vb2_queue *queue,
 static void sun6i_csi_capture_stop_streaming(struct vb2_queue *queue)
 {
 	struct sun6i_csi_device *csi_dev = vb2_get_drv_priv(queue);
-	struct sun6i_csi_capture *capture = &csi_dev->capture;
+	struct video_device *video_dev = &csi_dev->capture.video_dev;
 	struct v4l2_subdev *subdev = &csi_dev->bridge.subdev;
-	struct device *dev = csi_dev->dev;
 
 	v4l2_subdev_call(subdev, video, s_stream, 0);
 
-	sun6i_csi_capture_disable(csi_dev);
-	sun6i_csi_capture_irq_disable(csi_dev);
-
-	pm_runtime_put(dev);
-
-	media_pipeline_stop(&capture->video_dev.entity);
+	media_pipeline_stop(&video_dev->entity);
 
 	sun6i_csi_capture_state_cleanup(csi_dev, true);
 }
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h
index 2605b16f091c..a61db3bc72e5 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h
@@ -63,6 +63,9 @@ void sun6i_csi_capture_format(struct sun6i_csi_device *csi_dev,
 const
 struct sun6i_csi_capture_format *sun6i_csi_capture_format_find(u32 pixelformat);
 
+void sun6i_csi_capture_configure(struct sun6i_csi_device *csi_dev);
+void sun6i_csi_capture_state_update(struct sun6i_csi_device *csi_dev);
+
 void sun6i_csi_capture_sync(struct sun6i_csi_device *csi_dev);
 void sun6i_csi_capture_frame_done(struct sun6i_csi_device *csi_dev);
 
-- 
2.35.2


  parent reply	other threads:[~2022-04-15 15:32 UTC|newest]

Thread overview: 84+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-15 15:27 [PATCH v4 00/45] Allwinner A31/A83T MIPI CSI-2 and A31 ISP / CSI Rework Paul Kocialkowski
2022-04-15 15:27 ` [PATCH v4 01/45] media: sun6i-csi: Define and use driver name and (reworked) description Paul Kocialkowski
2022-04-15 15:27 ` [PATCH v4 02/45] media: sun6i-csi: Refactor main driver data structures Paul Kocialkowski
2022-04-15 15:27 ` [PATCH v4 03/45] media: sun6i-csi: Tidy up platform code Paul Kocialkowski
2022-04-15 15:27 ` [PATCH v4 04/45] media: sun6i-csi: Always set exclusive module clock rate Paul Kocialkowski
2022-04-15 15:27 ` [PATCH v4 05/45] media: sun6i-csi: Define and use variant to get " Paul Kocialkowski
2022-04-15 15:27 ` [PATCH v4 06/45] media: sun6i-csi: Use runtime pm for clocks and reset Paul Kocialkowski
2022-04-27 18:31   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 07/45] media: sun6i-csi: Tidy up Kconfig Paul Kocialkowski
2022-04-27 18:32   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 08/45] media: sun6i-csi: Tidy up v4l2 code Paul Kocialkowski
2022-04-15 15:27 ` [PATCH v4 09/45] media: sun6i-csi: Tidy up video code Paul Kocialkowski
2022-04-15 15:27 ` [PATCH v4 10/45] media: sun6i-csi: Pass and store csi device directly in " Paul Kocialkowski
2022-04-15 15:27 ` [PATCH v4 11/45] media: sun6i-csi: Register the media device after creation Paul Kocialkowski
2022-04-27 18:40   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 12/45] media: sun6i-csi: Add media ops with link notify callback Paul Kocialkowski
2022-04-27 18:42   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 13/45] media: sun6i-csi: Introduce and use video helper functions Paul Kocialkowski
2022-04-27 18:50   ` Jernej Škrabec
2022-04-28  8:04     ` Paul Kocialkowski
2022-04-28  8:11       ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 14/45] media: sun6i-csi: Move csi buffer definition to main header file Paul Kocialkowski
2022-04-15 15:27 ` [PATCH v4 15/45] media: media-entity: Add helper to get a single enabled link Paul Kocialkowski
2022-04-15 15:27 ` [PATCH v4 16/45] media: sun6i-csi: Add bridge v4l2 subdev with port management Paul Kocialkowski
2022-04-15 15:27 ` [PATCH v4 17/45] media: sun6i-csi: Rename sun6i_video to sun6i_csi_capture Paul Kocialkowski
2022-04-15 15:27 ` [PATCH v4 18/45] media: sun6i-csi: Add capture state using vsync for page flip Paul Kocialkowski
2022-04-15 15:27 ` [PATCH v4 19/45] media: sun6i-csi: Rework register definitions, invert misleading fields Paul Kocialkowski
2022-04-27 18:56   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 20/45] media: sun6i-csi: Add dimensions and format helpers to capture Paul Kocialkowski
2022-04-27 18:57   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 21/45] media: sun6i-csi: Implement address configuration without indirection Paul Kocialkowski
2022-04-27 19:16   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 22/45] media: sun6i-csi: Split stream sequences and irq code in capture Paul Kocialkowski
2022-04-27 19:19   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 23/45] media: sun6i-csi: Move power management to runtime pm " Paul Kocialkowski
2022-04-27 19:21   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 24/45] media: sun6i-csi: Move register configuration to capture Paul Kocialkowski
2022-04-27 19:25   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 25/45] media: sun6i-csi: Rework capture format management with helper Paul Kocialkowski
2022-04-27 19:28   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 26/45] media: sun6i-csi: Remove custom format helper and rework configure Paul Kocialkowski
2022-04-27 19:30   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 27/45] media: sun6i-csi: Add bridge dimensions and format helpers Paul Kocialkowski
2022-04-27 19:31   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 28/45] media: sun6i-csi: Get mbus code from bridge instead of storing it Paul Kocialkowski
2022-04-27 19:32   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 29/45] media: sun6i-csi: Tidy capture configure code Paul Kocialkowski
2022-04-27 19:35   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 30/45] media: sun6i-csi: Introduce bridge format structure, list and helper Paul Kocialkowski
2022-04-27 19:36   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 31/45] media: sun6i-csi: Introduce capture " Paul Kocialkowski
2022-04-27 19:38   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 32/45] media: sun6i-csi: Configure registers from format tables Paul Kocialkowski
2022-04-27 19:40   ` Jernej Škrabec
2022-04-15 15:27 ` [PATCH v4 33/45] media: sun6i-csi: Introduce format match structure, list and helper Paul Kocialkowski
2022-04-27 19:43   ` Jernej Škrabec
2022-04-15 15:28 ` [PATCH v4 34/45] media: sun6i-csi: Implement capture link validation with logic Paul Kocialkowski
2022-04-27 19:45   ` Jernej Škrabec
2022-04-15 15:28 ` [PATCH v4 35/45] media: sun6i-csi: Get bridge subdev directly in capture stream ops Paul Kocialkowski
2022-04-27 19:47   ` Jernej Škrabec
2022-04-15 15:28 ` Paul Kocialkowski [this message]
2022-04-15 15:28 ` [PATCH v4 37/45] media: sun6i-csi: Rename the capture video device to sun6i-csi-capture Paul Kocialkowski
2022-04-27 19:50   ` Jernej Škrabec
2022-04-15 15:28 ` [PATCH v4 38/45] media: sun6i-csi: Cleanup headers and includes, update copyright lines Paul Kocialkowski
2022-04-27 19:52   ` Jernej Škrabec
2022-04-15 15:28 ` [PATCH v4 39/45] media: sun6i-csi: Add support for MIPI CSI-2 to the bridge code Paul Kocialkowski
2022-04-27 19:54   ` Jernej Škrabec
2022-04-15 15:28 ` [PATCH v4 40/45] media: sun6i-csi: Only configure capture when streaming Paul Kocialkowski
2022-04-27 19:56   ` Jernej Škrabec
2022-04-15 15:28 ` [PATCH v4 41/45] media: sun6i-csi: Add extra checks to the interrupt routine Paul Kocialkowski
2022-04-27 19:57   ` Jernej Škrabec
2022-04-15 15:28 ` [PATCH v4 42/45] media: sun6i-csi: Request a shared interrupt Paul Kocialkowski
2022-04-27 19:02   ` Jernej Škrabec
2022-04-15 15:28 ` [PATCH v4 43/45] media: sun6i-csi: Detect the availability of the ISP Paul Kocialkowski
2022-04-27 20:07   ` Jernej Škrabec
2022-04-28  7:55     ` Paul Kocialkowski
2022-04-28  8:09       ` Jernej Škrabec
2022-04-28 11:39         ` Paul Kocialkowski
2022-04-28  8:11       ` Maxime Ripard
2022-04-28 11:43         ` Paul Kocialkowski
2022-04-29 14:24           ` Maxime Ripard
2022-04-15 15:28 ` [PATCH v4 44/45] media: sun6i-csi: Add support for hooking to the isp devices Paul Kocialkowski
2022-04-15 15:28 ` [PATCH v4 45/45] MAINTAINERS: Add myself as sun6i-csi maintainer and rename/move entry Paul Kocialkowski
2022-04-27 20:01   ` Jernej Škrabec

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