[PATCH v5 00/10] media: rkisp1: Add support for i.MX8MP

[PATCH v5 00/10] media: rkisp1: Add support for i.MX8MP

[Paul Elder]

This patch series depends on the series "media: rkisp1: Fix shared
interrupt handling" [1]

This series extends the rkisp1 driver to support the ISP found in the
NXP i.MX8MP SoC.

The ISP IP cores in the Rockchip RK3399 (known as the "Rockchip ISP1")
and in the NXP i.MX8MP have the same origin, and have slightly diverged
over time as they are now independently developed (afaik) by Rockchip
and VeriSilicon. The latter is marketed under the name "ISP8000Nano",
and is close enough to the RK3399 ISP that it can easily be supported by
the same driver.

The last two patches add support for UYVY output format, which can be
implemented on the ISP version in the i.MX8MP but not in the one in the
RK3399.

This version of the series specifically has been tested on a Polyhex
Debix model A with an imx219 (Raspberry Pi cam v2).

In v5 the patch "media: rkisp1: Fix RSZ_CTRL bits for i.MX8MP" has been
dropped.

[1] https://lore.kernel.org/all/20231218-rkisp-shirq-fix-v1-0-173007628248@ideasonboard.com/

Laurent Pinchart (2):
  media: rkisp1: Add and use rkisp1_has_feature() macro
  media: rkisp1: Configure gasket on i.MX8MP

Paul Elder (8):
  media: rkisp1: Support setting memory stride for main path
  media: rkisp1: Support devices lacking self path
  media: rkisp1: Support devices lacking dual crop
  dt-bindings: media: rkisp1: Add i.MX8MP ISP to compatible
  media: rkisp1: Add match data for i.MX8MP ISP
  media: rkisp1: Shift DMA buffer addresses on i.MX8MP
  media: rkisp1: Add YC swap capability
  media: rkisp1: Add UYVY as an output format

 .../bindings/media/rockchip-isp1.yaml         |  37 ++++-
 .../platform/rockchip/rkisp1/rkisp1-capture.c | 130 ++++++++++++-----
 .../platform/rockchip/rkisp1/rkisp1-common.h  |  37 ++++-
 .../platform/rockchip/rkisp1/rkisp1-dev.c     |  74 ++++++++--
 .../platform/rockchip/rkisp1/rkisp1-isp.c     | 131 +++++++++++++++++-
 .../platform/rockchip/rkisp1/rkisp1-regs.h    |  27 ++++
 .../platform/rockchip/rkisp1/rkisp1-resizer.c |  12 +-
 include/uapi/linux/rkisp1-config.h            |   2 +
 8 files changed, 392 insertions(+), 58 deletions(-)

-- 
2.39.2

[PATCH v5 01/10] media: rkisp1: Add and use rkisp1_has_feature() macro

[Paul Elder]

From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Simplify feature tests with a macro that shortens lines.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: Adam Ford <aford173@gmail.com>
---
 .../media/platform/rockchip/rkisp1/rkisp1-common.h |  3 +++
 .../media/platform/rockchip/rkisp1/rkisp1-dev.c    | 14 +++++++-------
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
index b757f75edecf..be6cb42776b0 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
@@ -119,6 +119,9 @@ enum rkisp1_feature {
 	RKISP1_FEATURE_MIPI_CSI2 = BIT(0),
 };
 
+#define rkisp1_has_feature(rkisp1, feature) \
+	((rkisp1)->info->features & RKISP1_FEATURE_##feature)
+
 /*
  * struct rkisp1_info - Model-specific ISP Information
  *
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index 73cf08a74011..44b753026ba2 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -207,7 +207,7 @@ static int rkisp1_subdev_notifier_register(struct rkisp1_device *rkisp1)
 		switch (reg) {
 		case 0:
 			/* MIPI CSI-2 port */
-			if (!(rkisp1->info->features & RKISP1_FEATURE_MIPI_CSI2)) {
+			if (!rkisp1_has_feature(rkisp1, MIPI_CSI2)) {
 				dev_err(rkisp1->dev,
 					"internal CSI must be available for port 0\n");
 				ret = -EINVAL;
@@ -361,7 +361,7 @@ static int rkisp1_create_links(struct rkisp1_device *rkisp1)
 	unsigned int i;
 	int ret;
 
-	if (rkisp1->info->features & RKISP1_FEATURE_MIPI_CSI2) {
+	if (rkisp1_has_feature(rkisp1, MIPI_CSI2)) {
 		/* Link the CSI receiver to the ISP. */
 		ret = media_create_pad_link(&rkisp1->csi.sd.entity,
 					    RKISP1_CSI_PAD_SRC,
@@ -413,7 +413,7 @@ static int rkisp1_create_links(struct rkisp1_device *rkisp1)
 
 static void rkisp1_entities_unregister(struct rkisp1_device *rkisp1)
 {
-	if (rkisp1->info->features & RKISP1_FEATURE_MIPI_CSI2)
+	if (rkisp1_has_feature(rkisp1, MIPI_CSI2))
 		rkisp1_csi_unregister(rkisp1);
 	rkisp1_params_unregister(rkisp1);
 	rkisp1_stats_unregister(rkisp1);
@@ -446,7 +446,7 @@ static int rkisp1_entities_register(struct rkisp1_device *rkisp1)
 	if (ret)
 		goto error;
 
-	if (rkisp1->info->features & RKISP1_FEATURE_MIPI_CSI2) {
+	if (rkisp1_has_feature(rkisp1, MIPI_CSI2)) {
 		ret = rkisp1_csi_register(rkisp1);
 		if (ret)
 			goto error;
@@ -629,7 +629,7 @@ static int rkisp1_probe(struct platform_device *pdev)
 		goto err_unreg_v4l2_dev;
 	}
 
-	if (rkisp1->info->features & RKISP1_FEATURE_MIPI_CSI2) {
+	if (rkisp1_has_feature(rkisp1, MIPI_CSI2)) {
 		ret = rkisp1_csi_init(rkisp1);
 		if (ret)
 			goto err_unreg_media_dev;
@@ -650,7 +650,7 @@ static int rkisp1_probe(struct platform_device *pdev)
 err_unreg_entities:
 	rkisp1_entities_unregister(rkisp1);
 err_cleanup_csi:
-	if (rkisp1->info->features & RKISP1_FEATURE_MIPI_CSI2)
+	if (rkisp1_has_feature(rkisp1, MIPI_CSI2))
 		rkisp1_csi_cleanup(rkisp1);
 err_unreg_media_dev:
 	media_device_unregister(&rkisp1->media_dev);
@@ -671,7 +671,7 @@ static void rkisp1_remove(struct platform_device *pdev)
 	v4l2_async_nf_cleanup(&rkisp1->notifier);
 
 	rkisp1_entities_unregister(rkisp1);
-	if (rkisp1->info->features & RKISP1_FEATURE_MIPI_CSI2)
+	if (rkisp1_has_feature(rkisp1, MIPI_CSI2))
 		rkisp1_csi_cleanup(rkisp1);
 	rkisp1_debug_cleanup(rkisp1);
 
-- 
2.39.2

Re: [PATCH v5 01/10] media: rkisp1: Add and use rkisp1_has_feature() macro

[Tomi Valkeinen]

On 06/01/2024 18:02, Paul Elder wrote:
> From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> 
> Simplify feature tests with a macro that shortens lines.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
> Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
> Tested-by: Adam Ford <aford173@gmail.com>
> ---
>   .../media/platform/rockchip/rkisp1/rkisp1-common.h |  3 +++
>   .../media/platform/rockchip/rkisp1/rkisp1-dev.c    | 14 +++++++-------
>   2 files changed, 10 insertions(+), 7 deletions(-)

Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

  Tomi

> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> index b757f75edecf..be6cb42776b0 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> @@ -119,6 +119,9 @@ enum rkisp1_feature {
>   	RKISP1_FEATURE_MIPI_CSI2 = BIT(0),
>   };
>   
> +#define rkisp1_has_feature(rkisp1, feature) \
> +	((rkisp1)->info->features & RKISP1_FEATURE_##feature)
> +
>   /*
>    * struct rkisp1_info - Model-specific ISP Information
>    *
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> index 73cf08a74011..44b753026ba2 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> @@ -207,7 +207,7 @@ static int rkisp1_subdev_notifier_register(struct rkisp1_device *rkisp1)
>   		switch (reg) {
>   		case 0:
>   			/* MIPI CSI-2 port */
> -			if (!(rkisp1->info->features & RKISP1_FEATURE_MIPI_CSI2)) {
> +			if (!rkisp1_has_feature(rkisp1, MIPI_CSI2)) {
>   				dev_err(rkisp1->dev,
>   					"internal CSI must be available for port 0\n");
>   				ret = -EINVAL;
> @@ -361,7 +361,7 @@ static int rkisp1_create_links(struct rkisp1_device *rkisp1)
>   	unsigned int i;
>   	int ret;
>   
> -	if (rkisp1->info->features & RKISP1_FEATURE_MIPI_CSI2) {
> +	if (rkisp1_has_feature(rkisp1, MIPI_CSI2)) {
>   		/* Link the CSI receiver to the ISP. */
>   		ret = media_create_pad_link(&rkisp1->csi.sd.entity,
>   					    RKISP1_CSI_PAD_SRC,
> @@ -413,7 +413,7 @@ static int rkisp1_create_links(struct rkisp1_device *rkisp1)
>   
>   static void rkisp1_entities_unregister(struct rkisp1_device *rkisp1)
>   {
> -	if (rkisp1->info->features & RKISP1_FEATURE_MIPI_CSI2)
> +	if (rkisp1_has_feature(rkisp1, MIPI_CSI2))
>   		rkisp1_csi_unregister(rkisp1);
>   	rkisp1_params_unregister(rkisp1);
>   	rkisp1_stats_unregister(rkisp1);
> @@ -446,7 +446,7 @@ static int rkisp1_entities_register(struct rkisp1_device *rkisp1)
>   	if (ret)
>   		goto error;
>   
> -	if (rkisp1->info->features & RKISP1_FEATURE_MIPI_CSI2) {
> +	if (rkisp1_has_feature(rkisp1, MIPI_CSI2)) {
>   		ret = rkisp1_csi_register(rkisp1);
>   		if (ret)
>   			goto error;
> @@ -629,7 +629,7 @@ static int rkisp1_probe(struct platform_device *pdev)
>   		goto err_unreg_v4l2_dev;
>   	}
>   
> -	if (rkisp1->info->features & RKISP1_FEATURE_MIPI_CSI2) {
> +	if (rkisp1_has_feature(rkisp1, MIPI_CSI2)) {
>   		ret = rkisp1_csi_init(rkisp1);
>   		if (ret)
>   			goto err_unreg_media_dev;
> @@ -650,7 +650,7 @@ static int rkisp1_probe(struct platform_device *pdev)
>   err_unreg_entities:
>   	rkisp1_entities_unregister(rkisp1);
>   err_cleanup_csi:
> -	if (rkisp1->info->features & RKISP1_FEATURE_MIPI_CSI2)
> +	if (rkisp1_has_feature(rkisp1, MIPI_CSI2))
>   		rkisp1_csi_cleanup(rkisp1);
>   err_unreg_media_dev:
>   	media_device_unregister(&rkisp1->media_dev);
> @@ -671,7 +671,7 @@ static void rkisp1_remove(struct platform_device *pdev)
>   	v4l2_async_nf_cleanup(&rkisp1->notifier);
>   
>   	rkisp1_entities_unregister(rkisp1);
> -	if (rkisp1->info->features & RKISP1_FEATURE_MIPI_CSI2)
> +	if (rkisp1_has_feature(rkisp1, MIPI_CSI2))
>   		rkisp1_csi_cleanup(rkisp1);
>   	rkisp1_debug_cleanup(rkisp1);
>   

[PATCH v5 02/10] media: rkisp1: Support setting memory stride for main path

[Paul Elder]

Some versions of the ISP supported by the rkisp1 driver, such as the ISP
in the i.MX8MP, implement configurable memory stride for the main path
the same way as already implemented by the driver for the self path.
Support this feature by adding a main stride feature flag and program
the corresponding registers accordingly.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: Adam Ford <aford173@gmail.com>
---
Changes since v3:

- Implement memory stride support
- Squash patch that adds register bits definitions
- Reword the commit message

Changes since v2:

- Document the RKISP1_FEATURE_MAIN_STRIDE bit
- Use the rkisp1_has_feature() macro
---
 .../platform/rockchip/rkisp1/rkisp1-capture.c | 34 ++++++++++++-------
 .../platform/rockchip/rkisp1/rkisp1-common.h  |  6 ++--
 .../platform/rockchip/rkisp1/rkisp1-regs.h    | 27 +++++++++++++++
 3 files changed, 52 insertions(+), 15 deletions(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
index c381c22135a2..83a968487f24 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
@@ -442,6 +442,14 @@ static void rkisp1_mp_config(struct rkisp1_capture *cap)
 	rkisp1_write(rkisp1, cap->config->mi.cr_size_init,
 		     rkisp1_pixfmt_comp_size(pixm, RKISP1_PLANE_CR));
 
+	if (rkisp1_has_feature(rkisp1, MAIN_STRIDE)) {
+		rkisp1_write(rkisp1, RKISP1_CIF_MI_MP_Y_LLENGTH, cap->stride);
+		rkisp1_write(rkisp1, RKISP1_CIF_MI_MP_Y_PIC_WIDTH, pixm->width);
+		rkisp1_write(rkisp1, RKISP1_CIF_MI_MP_Y_PIC_HEIGHT, pixm->height);
+		rkisp1_write(rkisp1, RKISP1_CIF_MI_MP_Y_PIC_SIZE,
+			     cap->stride * pixm->height);
+	}
+
 	rkisp1_irq_frame_end_enable(cap);
 
 	/* set uv swapping for semiplanar formats */
@@ -479,11 +487,11 @@ static void rkisp1_sp_config(struct rkisp1_capture *cap)
 	rkisp1_write(rkisp1, cap->config->mi.cr_size_init,
 		     rkisp1_pixfmt_comp_size(pixm, RKISP1_PLANE_CR));
 
-	rkisp1_write(rkisp1, RKISP1_CIF_MI_SP_Y_LLENGTH, cap->sp_y_stride);
+	rkisp1_write(rkisp1, RKISP1_CIF_MI_SP_Y_LLENGTH, cap->stride);
 	rkisp1_write(rkisp1, RKISP1_CIF_MI_SP_Y_PIC_WIDTH, pixm->width);
 	rkisp1_write(rkisp1, RKISP1_CIF_MI_SP_Y_PIC_HEIGHT, pixm->height);
 	rkisp1_write(rkisp1, RKISP1_CIF_MI_SP_Y_PIC_SIZE,
-		     cap->sp_y_stride * pixm->height);
+		     cap->stride * pixm->height);
 
 	rkisp1_irq_frame_end_enable(cap);
 
@@ -1095,8 +1103,8 @@ static const struct vb2_ops rkisp1_vb2_ops = {
  */
 
 static const struct v4l2_format_info *
-rkisp1_fill_pixfmt(struct v4l2_pix_format_mplane *pixm,
-		   enum rkisp1_stream_id id)
+rkisp1_fill_pixfmt(const struct rkisp1_capture *cap,
+		   struct v4l2_pix_format_mplane *pixm)
 {
 	struct v4l2_plane_pix_format *plane_y = &pixm->plane_fmt[0];
 	const struct v4l2_format_info *info;
@@ -1109,10 +1117,13 @@ rkisp1_fill_pixfmt(struct v4l2_pix_format_mplane *pixm,
 
 	/*
 	 * The SP supports custom strides, expressed as a number of pixels for
-	 * the Y plane. Clamp the stride to a reasonable value to avoid integer
-	 * overflows when calculating the bytesperline and sizeimage values.
+	 * the Y plane, and so does the MP in ISP versions that have the
+	 * MAIN_STRIDE feature. Clamp the stride to a reasonable value to avoid
+	 * integer overflows when calculating the bytesperline and sizeimage
+	 * values.
 	 */
-	if (id == RKISP1_SELFPATH)
+	if (cap->id == RKISP1_SELFPATH ||
+	    rkisp1_has_feature(cap->rkisp1, MAIN_STRIDE))
 		stride = clamp(DIV_ROUND_UP(plane_y->bytesperline, info->bpp[0]),
 			       pixm->width, 65536U);
 	else
@@ -1187,7 +1198,7 @@ static void rkisp1_try_fmt(const struct rkisp1_capture *cap,
 	pixm->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
 	pixm->quantization = V4L2_QUANTIZATION_DEFAULT;
 
-	info = rkisp1_fill_pixfmt(pixm, cap->id);
+	info = rkisp1_fill_pixfmt(cap, pixm);
 
 	if (fmt_cfg)
 		*fmt_cfg = fmt;
@@ -1199,12 +1210,9 @@ static void rkisp1_set_fmt(struct rkisp1_capture *cap,
 			   struct v4l2_pix_format_mplane *pixm)
 {
 	rkisp1_try_fmt(cap, pixm, &cap->pix.cfg, &cap->pix.info);
-	cap->pix.fmt = *pixm;
 
-	/* SP supports custom stride in number of pixels of the Y plane */
-	if (cap->id == RKISP1_SELFPATH)
-		cap->sp_y_stride = pixm->plane_fmt[0].bytesperline /
-				   cap->pix.info->bpp[0];
+	cap->pix.fmt = *pixm;
+	cap->stride = pixm->plane_fmt[0].bytesperline / cap->pix.info->bpp[0];
 }
 
 static int rkisp1_try_fmt_vid_cap_mplane(struct file *file, void *fh,
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
index be6cb42776b0..6a811b7ef1b9 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
@@ -110,6 +110,7 @@ enum rkisp1_isp_pad {
  * enum rkisp1_feature - ISP features
  *
  * @RKISP1_FEATURE_MIPI_CSI2: The ISP has an internal MIPI CSI-2 receiver
+ * @RKISP1_FEATURE_MAIN_STRIDE: The ISP supports configurable stride on the main path
  *
  * The ISP features are stored in a bitmask in &rkisp1_info.features and allow
  * the driver to implement support for features present in some ISP versions
@@ -117,6 +118,7 @@ enum rkisp1_isp_pad {
  */
 enum rkisp1_feature {
 	RKISP1_FEATURE_MIPI_CSI2 = BIT(0),
+	RKISP1_FEATURE_MAIN_STRIDE = BIT(1),
 };
 
 #define rkisp1_has_feature(rkisp1, feature) \
@@ -266,7 +268,7 @@ struct rkisp1_device;
  *		  handler to stop the streaming by waiting on the 'done' wait queue.
  *		  If the irq handler is not called, the stream is stopped by the callback
  *		  after timeout.
- * @sp_y_stride:  the selfpath allows to configure a y stride that is longer than the image width.
+ * @stride:       the line stride for the first plane, in pixel units
  * @buf.lock:	  lock to protect buf.queue
  * @buf.queue:	  queued buffer list
  * @buf.dummy:	  dummy space to store dropped data
@@ -287,7 +289,7 @@ struct rkisp1_capture {
 	bool is_streaming;
 	bool is_stopping;
 	wait_queue_head_t done;
-	unsigned int sp_y_stride;
+	unsigned int stride;
 	struct {
 		/* protects queue, curr and next */
 		spinlock_t lock;
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-regs.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-regs.h
index bea69a0d766a..3b19c8411360 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-regs.h
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-regs.h
@@ -207,6 +207,24 @@
 #define RKISP1_CIF_MI_XTD_FMT_CTRL_SP_CB_CR_SWAP	BIT(1)
 #define RKISP1_CIF_MI_XTD_FMT_CTRL_DMA_CB_CR_SWAP	BIT(2)
 
+/* MI_OUTPUT_ALIGN_FORMAT */
+#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_MP_LSB_ALIGNMENT			BIT(0)
+#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_MP_BYTE_SWAP_BYTES		BIT(1)
+#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_MP_BYTE_SWAP_WORDS		BIT(2)
+#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_MP_BYTE_SWAP_DWORDS		BIT(3)
+#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_SP_BYTE_SWAP_BYTES		BIT(4)
+#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_SP_BYTE_SWAP_WORDS		BIT(5)
+#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_SP_BYTE_SWAP_DWORDS		BIT(6)
+#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_DMA_BYTE_SWAP_BYTES		BIT(7)
+#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_DMA_BYTE_SWAP_WORDS		BIT(8)
+#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_DMA_BYTE_SWAP_DWORDS		BIT(9)
+
+/* MI_MP_OUTPUT_FIFO_SIZE */
+#define RKISP1_CIF_MI_MP_OUTPUT_FIFO_SIZE_OUTPUT_FIFO_DEPTH_FULL	(0 << 0)
+#define RKISP1_CIF_MI_MP_OUTPUT_FIFO_SIZE_OUTPUT_FIFO_DEPTH_HALF	(1 << 0)
+#define RKISP1_CIF_MI_MP_OUTPUT_FIFO_SIZE_OUTPUT_FIFO_DEPTH_QUARTER	(2 << 0)
+#define RKISP1_CIF_MI_MP_OUTPUT_FIFO_SIZE_OUTPUT_FIFO_DEPTH_EIGHT	(3 << 0)
+
 /* VI_CCL */
 #define RKISP1_CIF_CCL_CIF_CLK_DIS			BIT(2)
 /* VI_ISP_CLK_CTRL */
@@ -1000,6 +1018,15 @@
 #define RKISP1_CIF_MI_SP_CB_BASE_AD_INIT2	(RKISP1_CIF_MI_BASE + 0x00000140)
 #define RKISP1_CIF_MI_SP_CR_BASE_AD_INIT2	(RKISP1_CIF_MI_BASE + 0x00000144)
 #define RKISP1_CIF_MI_XTD_FORMAT_CTRL		(RKISP1_CIF_MI_BASE + 0x00000148)
+#define RKISP1_CIF_MI_MP_HANDSHAKE_0		(RKISP1_CIF_MI_BASE + 0x0000014C)
+#define RKISP1_CIF_MI_MP_Y_LLENGTH		(RKISP1_CIF_MI_BASE + 0x00000150)
+#define RKISP1_CIF_MI_MP_Y_SLICE_OFFSET		(RKISP1_CIF_MI_BASE + 0x00000154)
+#define RKISP1_CIF_MI_MP_C_SLICE_OFFSET		(RKISP1_CIF_MI_BASE + 0x00000158)
+#define RKISP1_CIF_MI_OUTPUT_ALIGN_FORMAT	(RKISP1_CIF_MI_BASE + 0x0000015C)
+#define RKISP1_CIF_MI_MP_OUTPUT_FIFO_SIZE	(RKISP1_CIF_MI_BASE + 0x00000160)
+#define RKISP1_CIF_MI_MP_Y_PIC_WIDTH		(RKISP1_CIF_MI_BASE + 0x00000164)
+#define RKISP1_CIF_MI_MP_Y_PIC_HEIGHT		(RKISP1_CIF_MI_BASE + 0x00000168)
+#define RKISP1_CIF_MI_MP_Y_PIC_SIZE		(RKISP1_CIF_MI_BASE + 0x0000016C)
 
 #define RKISP1_CIF_SMIA_BASE			0x00001a00
 #define RKISP1_CIF_SMIA_CTRL			(RKISP1_CIF_SMIA_BASE + 0x00000000)
-- 
2.39.2

Re: [PATCH v5 02/10] media: rkisp1: Support setting memory stride for main path

[Tomi Valkeinen]

On 06/01/2024 18:02, Paul Elder wrote:
> Some versions of the ISP supported by the rkisp1 driver, such as the ISP
> in the i.MX8MP, implement configurable memory stride for the main path
> the same way as already implemented by the driver for the self path.
> Support this feature by adding a main stride feature flag and program
> the corresponding registers accordingly.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
> Tested-by: Adam Ford <aford173@gmail.com>
> ---
> Changes since v3:
> 
> - Implement memory stride support
> - Squash patch that adds register bits definitions
> - Reword the commit message
> 
> Changes since v2:
> 
> - Document the RKISP1_FEATURE_MAIN_STRIDE bit
> - Use the rkisp1_has_feature() macro
> ---
>   .../platform/rockchip/rkisp1/rkisp1-capture.c | 34 ++++++++++++-------
>   .../platform/rockchip/rkisp1/rkisp1-common.h  |  6 ++--
>   .../platform/rockchip/rkisp1/rkisp1-regs.h    | 27 +++++++++++++++
>   3 files changed, 52 insertions(+), 15 deletions(-)

Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

  Tomi

> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
> index c381c22135a2..83a968487f24 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
> @@ -442,6 +442,14 @@ static void rkisp1_mp_config(struct rkisp1_capture *cap)
>   	rkisp1_write(rkisp1, cap->config->mi.cr_size_init,
>   		     rkisp1_pixfmt_comp_size(pixm, RKISP1_PLANE_CR));
>   
> +	if (rkisp1_has_feature(rkisp1, MAIN_STRIDE)) {
> +		rkisp1_write(rkisp1, RKISP1_CIF_MI_MP_Y_LLENGTH, cap->stride);
> +		rkisp1_write(rkisp1, RKISP1_CIF_MI_MP_Y_PIC_WIDTH, pixm->width);
> +		rkisp1_write(rkisp1, RKISP1_CIF_MI_MP_Y_PIC_HEIGHT, pixm->height);
> +		rkisp1_write(rkisp1, RKISP1_CIF_MI_MP_Y_PIC_SIZE,
> +			     cap->stride * pixm->height);
> +	}
> +
>   	rkisp1_irq_frame_end_enable(cap);
>   
>   	/* set uv swapping for semiplanar formats */
> @@ -479,11 +487,11 @@ static void rkisp1_sp_config(struct rkisp1_capture *cap)
>   	rkisp1_write(rkisp1, cap->config->mi.cr_size_init,
>   		     rkisp1_pixfmt_comp_size(pixm, RKISP1_PLANE_CR));
>   
> -	rkisp1_write(rkisp1, RKISP1_CIF_MI_SP_Y_LLENGTH, cap->sp_y_stride);
> +	rkisp1_write(rkisp1, RKISP1_CIF_MI_SP_Y_LLENGTH, cap->stride);
>   	rkisp1_write(rkisp1, RKISP1_CIF_MI_SP_Y_PIC_WIDTH, pixm->width);
>   	rkisp1_write(rkisp1, RKISP1_CIF_MI_SP_Y_PIC_HEIGHT, pixm->height);
>   	rkisp1_write(rkisp1, RKISP1_CIF_MI_SP_Y_PIC_SIZE,
> -		     cap->sp_y_stride * pixm->height);
> +		     cap->stride * pixm->height);
>   
>   	rkisp1_irq_frame_end_enable(cap);
>   
> @@ -1095,8 +1103,8 @@ static const struct vb2_ops rkisp1_vb2_ops = {
>    */
>   
>   static const struct v4l2_format_info *
> -rkisp1_fill_pixfmt(struct v4l2_pix_format_mplane *pixm,
> -		   enum rkisp1_stream_id id)
> +rkisp1_fill_pixfmt(const struct rkisp1_capture *cap,
> +		   struct v4l2_pix_format_mplane *pixm)
>   {
>   	struct v4l2_plane_pix_format *plane_y = &pixm->plane_fmt[0];
>   	const struct v4l2_format_info *info;
> @@ -1109,10 +1117,13 @@ rkisp1_fill_pixfmt(struct v4l2_pix_format_mplane *pixm,
>   
>   	/*
>   	 * The SP supports custom strides, expressed as a number of pixels for
> -	 * the Y plane. Clamp the stride to a reasonable value to avoid integer
> -	 * overflows when calculating the bytesperline and sizeimage values.
> +	 * the Y plane, and so does the MP in ISP versions that have the
> +	 * MAIN_STRIDE feature. Clamp the stride to a reasonable value to avoid
> +	 * integer overflows when calculating the bytesperline and sizeimage
> +	 * values.
>   	 */
> -	if (id == RKISP1_SELFPATH)
> +	if (cap->id == RKISP1_SELFPATH ||
> +	    rkisp1_has_feature(cap->rkisp1, MAIN_STRIDE))
>   		stride = clamp(DIV_ROUND_UP(plane_y->bytesperline, info->bpp[0]),
>   			       pixm->width, 65536U);
>   	else
> @@ -1187,7 +1198,7 @@ static void rkisp1_try_fmt(const struct rkisp1_capture *cap,
>   	pixm->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
>   	pixm->quantization = V4L2_QUANTIZATION_DEFAULT;
>   
> -	info = rkisp1_fill_pixfmt(pixm, cap->id);
> +	info = rkisp1_fill_pixfmt(cap, pixm);
>   
>   	if (fmt_cfg)
>   		*fmt_cfg = fmt;
> @@ -1199,12 +1210,9 @@ static void rkisp1_set_fmt(struct rkisp1_capture *cap,
>   			   struct v4l2_pix_format_mplane *pixm)
>   {
>   	rkisp1_try_fmt(cap, pixm, &cap->pix.cfg, &cap->pix.info);
> -	cap->pix.fmt = *pixm;
>   
> -	/* SP supports custom stride in number of pixels of the Y plane */
> -	if (cap->id == RKISP1_SELFPATH)
> -		cap->sp_y_stride = pixm->plane_fmt[0].bytesperline /
> -				   cap->pix.info->bpp[0];
> +	cap->pix.fmt = *pixm;
> +	cap->stride = pixm->plane_fmt[0].bytesperline / cap->pix.info->bpp[0];
>   }
>   
>   static int rkisp1_try_fmt_vid_cap_mplane(struct file *file, void *fh,
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> index be6cb42776b0..6a811b7ef1b9 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> @@ -110,6 +110,7 @@ enum rkisp1_isp_pad {
>    * enum rkisp1_feature - ISP features
>    *
>    * @RKISP1_FEATURE_MIPI_CSI2: The ISP has an internal MIPI CSI-2 receiver
> + * @RKISP1_FEATURE_MAIN_STRIDE: The ISP supports configurable stride on the main path
>    *
>    * The ISP features are stored in a bitmask in &rkisp1_info.features and allow
>    * the driver to implement support for features present in some ISP versions
> @@ -117,6 +118,7 @@ enum rkisp1_isp_pad {
>    */
>   enum rkisp1_feature {
>   	RKISP1_FEATURE_MIPI_CSI2 = BIT(0),
> +	RKISP1_FEATURE_MAIN_STRIDE = BIT(1),
>   };
>   
>   #define rkisp1_has_feature(rkisp1, feature) \
> @@ -266,7 +268,7 @@ struct rkisp1_device;
>    *		  handler to stop the streaming by waiting on the 'done' wait queue.
>    *		  If the irq handler is not called, the stream is stopped by the callback
>    *		  after timeout.
> - * @sp_y_stride:  the selfpath allows to configure a y stride that is longer than the image width.
> + * @stride:       the line stride for the first plane, in pixel units
>    * @buf.lock:	  lock to protect buf.queue
>    * @buf.queue:	  queued buffer list
>    * @buf.dummy:	  dummy space to store dropped data
> @@ -287,7 +289,7 @@ struct rkisp1_capture {
>   	bool is_streaming;
>   	bool is_stopping;
>   	wait_queue_head_t done;
> -	unsigned int sp_y_stride;
> +	unsigned int stride;
>   	struct {
>   		/* protects queue, curr and next */
>   		spinlock_t lock;
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-regs.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-regs.h
> index bea69a0d766a..3b19c8411360 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-regs.h
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-regs.h
> @@ -207,6 +207,24 @@
>   #define RKISP1_CIF_MI_XTD_FMT_CTRL_SP_CB_CR_SWAP	BIT(1)
>   #define RKISP1_CIF_MI_XTD_FMT_CTRL_DMA_CB_CR_SWAP	BIT(2)
>   
> +/* MI_OUTPUT_ALIGN_FORMAT */
> +#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_MP_LSB_ALIGNMENT			BIT(0)
> +#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_MP_BYTE_SWAP_BYTES		BIT(1)
> +#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_MP_BYTE_SWAP_WORDS		BIT(2)
> +#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_MP_BYTE_SWAP_DWORDS		BIT(3)
> +#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_SP_BYTE_SWAP_BYTES		BIT(4)
> +#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_SP_BYTE_SWAP_WORDS		BIT(5)
> +#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_SP_BYTE_SWAP_DWORDS		BIT(6)
> +#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_DMA_BYTE_SWAP_BYTES		BIT(7)
> +#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_DMA_BYTE_SWAP_WORDS		BIT(8)
> +#define RKISP1_CIF_OUTPUT_ALIGN_FORMAT_DMA_BYTE_SWAP_DWORDS		BIT(9)
> +
> +/* MI_MP_OUTPUT_FIFO_SIZE */
> +#define RKISP1_CIF_MI_MP_OUTPUT_FIFO_SIZE_OUTPUT_FIFO_DEPTH_FULL	(0 << 0)
> +#define RKISP1_CIF_MI_MP_OUTPUT_FIFO_SIZE_OUTPUT_FIFO_DEPTH_HALF	(1 << 0)
> +#define RKISP1_CIF_MI_MP_OUTPUT_FIFO_SIZE_OUTPUT_FIFO_DEPTH_QUARTER	(2 << 0)
> +#define RKISP1_CIF_MI_MP_OUTPUT_FIFO_SIZE_OUTPUT_FIFO_DEPTH_EIGHT	(3 << 0)
> +
>   /* VI_CCL */
>   #define RKISP1_CIF_CCL_CIF_CLK_DIS			BIT(2)
>   /* VI_ISP_CLK_CTRL */
> @@ -1000,6 +1018,15 @@
>   #define RKISP1_CIF_MI_SP_CB_BASE_AD_INIT2	(RKISP1_CIF_MI_BASE + 0x00000140)
>   #define RKISP1_CIF_MI_SP_CR_BASE_AD_INIT2	(RKISP1_CIF_MI_BASE + 0x00000144)
>   #define RKISP1_CIF_MI_XTD_FORMAT_CTRL		(RKISP1_CIF_MI_BASE + 0x00000148)
> +#define RKISP1_CIF_MI_MP_HANDSHAKE_0		(RKISP1_CIF_MI_BASE + 0x0000014C)
> +#define RKISP1_CIF_MI_MP_Y_LLENGTH		(RKISP1_CIF_MI_BASE + 0x00000150)
> +#define RKISP1_CIF_MI_MP_Y_SLICE_OFFSET		(RKISP1_CIF_MI_BASE + 0x00000154)
> +#define RKISP1_CIF_MI_MP_C_SLICE_OFFSET		(RKISP1_CIF_MI_BASE + 0x00000158)
> +#define RKISP1_CIF_MI_OUTPUT_ALIGN_FORMAT	(RKISP1_CIF_MI_BASE + 0x0000015C)
> +#define RKISP1_CIF_MI_MP_OUTPUT_FIFO_SIZE	(RKISP1_CIF_MI_BASE + 0x00000160)
> +#define RKISP1_CIF_MI_MP_Y_PIC_WIDTH		(RKISP1_CIF_MI_BASE + 0x00000164)
> +#define RKISP1_CIF_MI_MP_Y_PIC_HEIGHT		(RKISP1_CIF_MI_BASE + 0x00000168)
> +#define RKISP1_CIF_MI_MP_Y_PIC_SIZE		(RKISP1_CIF_MI_BASE + 0x0000016C)
>   
>   #define RKISP1_CIF_SMIA_BASE			0x00001a00
>   #define RKISP1_CIF_SMIA_CTRL			(RKISP1_CIF_SMIA_BASE + 0x00000000)

[PATCH v5 03/10] media: rkisp1: Support devices lacking self path

[Paul Elder]

Some versions of the ISP supported by the rkisp1 driver, such as the ISP
in the i.MX8MP, lack the self path. Support those ISP versions by adding
a self path feature flag, and massage the rest of the driver to support
the lack of a self path.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: Adam Ford <aford173@gmail.com>
---
Changes since v3:

- Document the feature bit
- Reorder commit

Changes since v2:

- Simplify rkisp1_path_count()
- Use the rkisp1_has_feature() macro
---
 .../platform/rockchip/rkisp1/rkisp1-capture.c     |  9 ++++++---
 .../platform/rockchip/rkisp1/rkisp1-common.h      | 15 +++++++++++++++
 .../media/platform/rockchip/rkisp1/rkisp1-dev.c   |  9 ++++++---
 .../platform/rockchip/rkisp1/rkisp1-resizer.c     |  6 ++++--
 4 files changed, 31 insertions(+), 8 deletions(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
index 83a968487f24..ca95f62822fa 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
@@ -730,6 +730,7 @@ irqreturn_t rkisp1_capture_isr(int irq, void *ctx)
 {
 	struct device *dev = ctx;
 	struct rkisp1_device *rkisp1 = dev_get_drvdata(dev);
+	unsigned int dev_count = rkisp1_path_count(rkisp1);
 	unsigned int i;
 	u32 status;
 
@@ -742,7 +743,7 @@ irqreturn_t rkisp1_capture_isr(int irq, void *ctx)
 
 	rkisp1_write(rkisp1, RKISP1_CIF_MI_ICR, status);
 
-	for (i = 0; i < ARRAY_SIZE(rkisp1->capture_devs); ++i) {
+	for (i = 0; i < dev_count; ++i) {
 		struct rkisp1_capture *cap = &rkisp1->capture_devs[i];
 
 		if (!(status & RKISP1_CIF_MI_FRAME(cap)))
@@ -899,6 +900,7 @@ static void rkisp1_cap_stream_enable(struct rkisp1_capture *cap)
 {
 	struct rkisp1_device *rkisp1 = cap->rkisp1;
 	struct rkisp1_capture *other = &rkisp1->capture_devs[cap->id ^ 1];
+	bool has_self_path = rkisp1_has_feature(rkisp1, SELF_PATH);
 
 	cap->ops->set_data_path(cap);
 	cap->ops->config(cap);
@@ -916,7 +918,7 @@ static void rkisp1_cap_stream_enable(struct rkisp1_capture *cap)
 	 * This's also required because the second FE maybe corrupt
 	 * especially when run at 120fps.
 	 */
-	if (!other->is_streaming) {
+	if (!has_self_path || !other->is_streaming) {
 		/* force cfg update */
 		rkisp1_write(rkisp1, RKISP1_CIF_MI_INIT,
 			     RKISP1_CIF_MI_INIT_SOFT_UPD);
@@ -1509,10 +1511,11 @@ rkisp1_capture_init(struct rkisp1_device *rkisp1, enum rkisp1_stream_id id)
 
 int rkisp1_capture_devs_register(struct rkisp1_device *rkisp1)
 {
+	unsigned int dev_count = rkisp1_path_count(rkisp1);
 	unsigned int i;
 	int ret;
 
-	for (i = 0; i < ARRAY_SIZE(rkisp1->capture_devs); i++) {
+	for (i = 0; i < dev_count; i++) {
 		struct rkisp1_capture *cap = &rkisp1->capture_devs[i];
 
 		rkisp1_capture_init(rkisp1, i);
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
index 6a811b7ef1b9..f7c251f79aa9 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
@@ -111,6 +111,7 @@ enum rkisp1_isp_pad {
  *
  * @RKISP1_FEATURE_MIPI_CSI2: The ISP has an internal MIPI CSI-2 receiver
  * @RKISP1_FEATURE_MAIN_STRIDE: The ISP supports configurable stride on the main path
+ * @RKISP1_FEATURE_SELF_PATH: The ISP has a self path
  *
  * The ISP features are stored in a bitmask in &rkisp1_info.features and allow
  * the driver to implement support for features present in some ISP versions
@@ -119,6 +120,7 @@ enum rkisp1_isp_pad {
 enum rkisp1_feature {
 	RKISP1_FEATURE_MIPI_CSI2 = BIT(0),
 	RKISP1_FEATURE_MAIN_STRIDE = BIT(1),
+	RKISP1_FEATURE_SELF_PATH = BIT(2),
 };
 
 #define rkisp1_has_feature(rkisp1, feature) \
@@ -531,6 +533,19 @@ int rkisp1_cap_enum_mbus_codes(struct rkisp1_capture *cap,
  */
 const struct rkisp1_mbus_info *rkisp1_mbus_info_get_by_index(unsigned int index);
 
+/*
+ * rkisp1_path_count - Return the number of paths supported by the device
+ *
+ * Some devices only have a main path, while other device have both a main path
+ * and a self path. This function returns the number of paths that this device
+ * has, based on the feature flags. It should be used insted of checking
+ * ARRAY_SIZE of capture_devs/resizer_devs.
+ */
+static inline unsigned int rkisp1_path_count(struct rkisp1_device *rkisp1)
+{
+	return rkisp1_has_feature(rkisp1, SELF_PATH) ? 2 : 1;
+}
+
 /*
  * rkisp1_sd_adjust_crop_rect - adjust a rectangle to fit into another rectangle.
  *
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index 44b753026ba2..106040c4181c 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -358,6 +358,7 @@ static const struct dev_pm_ops rkisp1_pm_ops = {
 
 static int rkisp1_create_links(struct rkisp1_device *rkisp1)
 {
+	unsigned int dev_count = rkisp1_path_count(rkisp1);
 	unsigned int i;
 	int ret;
 
@@ -373,7 +374,7 @@ static int rkisp1_create_links(struct rkisp1_device *rkisp1)
 	}
 
 	/* create ISP->RSZ->CAP links */
-	for (i = 0; i < 2; i++) {
+	for (i = 0; i < dev_count; i++) {
 		struct media_entity *resizer =
 			&rkisp1->resizer_devs[i].sd.entity;
 		struct media_entity *capture =
@@ -505,7 +506,8 @@ static const struct rkisp1_info px30_isp_info = {
 	.isrs = px30_isp_isrs,
 	.isr_size = ARRAY_SIZE(px30_isp_isrs),
 	.isp_ver = RKISP1_V12,
-	.features = RKISP1_FEATURE_MIPI_CSI2,
+	.features = RKISP1_FEATURE_MIPI_CSI2
+		  | RKISP1_FEATURE_SELF_PATH,
 };
 
 static const char * const rk3399_isp_clks[] = {
@@ -524,7 +526,8 @@ static const struct rkisp1_info rk3399_isp_info = {
 	.isrs = rk3399_isp_isrs,
 	.isr_size = ARRAY_SIZE(rk3399_isp_isrs),
 	.isp_ver = RKISP1_V10,
-	.features = RKISP1_FEATURE_MIPI_CSI2,
+	.features = RKISP1_FEATURE_MIPI_CSI2
+		  | RKISP1_FEATURE_SELF_PATH,
 };
 
 static const struct of_device_id rkisp1_of_match[] = {
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c
index a8e377701302..dd77a31e6014 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c
@@ -631,6 +631,7 @@ static int rkisp1_rsz_s_stream(struct v4l2_subdev *sd, int enable)
 	struct rkisp1_device *rkisp1 = rsz->rkisp1;
 	struct rkisp1_capture *other = &rkisp1->capture_devs[rsz->id ^ 1];
 	enum rkisp1_shadow_regs_when when = RKISP1_SHADOW_REGS_SYNC;
+	bool has_self_path = rkisp1_has_feature(rkisp1, SELF_PATH);
 	struct v4l2_subdev_state *sd_state;
 
 	if (!enable) {
@@ -639,7 +640,7 @@ static int rkisp1_rsz_s_stream(struct v4l2_subdev *sd, int enable)
 		return 0;
 	}
 
-	if (other->is_streaming)
+	if (has_self_path && other->is_streaming)
 		when = RKISP1_SHADOW_REGS_ASYNC;
 
 	sd_state = v4l2_subdev_lock_and_get_active_state(sd);
@@ -731,10 +732,11 @@ static int rkisp1_rsz_register(struct rkisp1_resizer *rsz)
 
 int rkisp1_resizer_devs_register(struct rkisp1_device *rkisp1)
 {
+	unsigned int dev_count = rkisp1_path_count(rkisp1);
 	unsigned int i;
 	int ret;
 
-	for (i = 0; i < ARRAY_SIZE(rkisp1->resizer_devs); i++) {
+	for (i = 0; i < dev_count; i++) {
 		struct rkisp1_resizer *rsz = &rkisp1->resizer_devs[i];
 
 		rsz->rkisp1 = rkisp1;
-- 
2.39.2

Re: [PATCH v5 03/10] media: rkisp1: Support devices lacking self path

[Tomi Valkeinen]

On 06/01/2024 18:02, Paul Elder wrote:
> Some versions of the ISP supported by the rkisp1 driver, such as the ISP
> in the i.MX8MP, lack the self path. Support those ISP versions by adding
> a self path feature flag, and massage the rest of the driver to support
> the lack of a self path.
> 
> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
> Tested-by: Adam Ford <aford173@gmail.com>
> ---
> Changes since v3:
> 
> - Document the feature bit
> - Reorder commit
> 
> Changes since v2:
> 
> - Simplify rkisp1_path_count()
> - Use the rkisp1_has_feature() macro
> ---
>   .../platform/rockchip/rkisp1/rkisp1-capture.c     |  9 ++++++---
>   .../platform/rockchip/rkisp1/rkisp1-common.h      | 15 +++++++++++++++
>   .../media/platform/rockchip/rkisp1/rkisp1-dev.c   |  9 ++++++---
>   .../platform/rockchip/rkisp1/rkisp1-resizer.c     |  6 ++++--
>   4 files changed, 31 insertions(+), 8 deletions(-)

Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

  Tomi

> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
> index 83a968487f24..ca95f62822fa 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
> @@ -730,6 +730,7 @@ irqreturn_t rkisp1_capture_isr(int irq, void *ctx)
>   {
>   	struct device *dev = ctx;
>   	struct rkisp1_device *rkisp1 = dev_get_drvdata(dev);
> +	unsigned int dev_count = rkisp1_path_count(rkisp1);
>   	unsigned int i;
>   	u32 status;
>   
> @@ -742,7 +743,7 @@ irqreturn_t rkisp1_capture_isr(int irq, void *ctx)
>   
>   	rkisp1_write(rkisp1, RKISP1_CIF_MI_ICR, status);
>   
> -	for (i = 0; i < ARRAY_SIZE(rkisp1->capture_devs); ++i) {
> +	for (i = 0; i < dev_count; ++i) {
>   		struct rkisp1_capture *cap = &rkisp1->capture_devs[i];
>   
>   		if (!(status & RKISP1_CIF_MI_FRAME(cap)))
> @@ -899,6 +900,7 @@ static void rkisp1_cap_stream_enable(struct rkisp1_capture *cap)
>   {
>   	struct rkisp1_device *rkisp1 = cap->rkisp1;
>   	struct rkisp1_capture *other = &rkisp1->capture_devs[cap->id ^ 1];
> +	bool has_self_path = rkisp1_has_feature(rkisp1, SELF_PATH);
>   
>   	cap->ops->set_data_path(cap);
>   	cap->ops->config(cap);
> @@ -916,7 +918,7 @@ static void rkisp1_cap_stream_enable(struct rkisp1_capture *cap)
>   	 * This's also required because the second FE maybe corrupt
>   	 * especially when run at 120fps.
>   	 */
> -	if (!other->is_streaming) {
> +	if (!has_self_path || !other->is_streaming) {
>   		/* force cfg update */
>   		rkisp1_write(rkisp1, RKISP1_CIF_MI_INIT,
>   			     RKISP1_CIF_MI_INIT_SOFT_UPD);
> @@ -1509,10 +1511,11 @@ rkisp1_capture_init(struct rkisp1_device *rkisp1, enum rkisp1_stream_id id)
>   
>   int rkisp1_capture_devs_register(struct rkisp1_device *rkisp1)
>   {
> +	unsigned int dev_count = rkisp1_path_count(rkisp1);
>   	unsigned int i;
>   	int ret;
>   
> -	for (i = 0; i < ARRAY_SIZE(rkisp1->capture_devs); i++) {
> +	for (i = 0; i < dev_count; i++) {
>   		struct rkisp1_capture *cap = &rkisp1->capture_devs[i];
>   
>   		rkisp1_capture_init(rkisp1, i);
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> index 6a811b7ef1b9..f7c251f79aa9 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> @@ -111,6 +111,7 @@ enum rkisp1_isp_pad {
>    *
>    * @RKISP1_FEATURE_MIPI_CSI2: The ISP has an internal MIPI CSI-2 receiver
>    * @RKISP1_FEATURE_MAIN_STRIDE: The ISP supports configurable stride on the main path
> + * @RKISP1_FEATURE_SELF_PATH: The ISP has a self path
>    *
>    * The ISP features are stored in a bitmask in &rkisp1_info.features and allow
>    * the driver to implement support for features present in some ISP versions
> @@ -119,6 +120,7 @@ enum rkisp1_isp_pad {
>   enum rkisp1_feature {
>   	RKISP1_FEATURE_MIPI_CSI2 = BIT(0),
>   	RKISP1_FEATURE_MAIN_STRIDE = BIT(1),
> +	RKISP1_FEATURE_SELF_PATH = BIT(2),
>   };
>   
>   #define rkisp1_has_feature(rkisp1, feature) \
> @@ -531,6 +533,19 @@ int rkisp1_cap_enum_mbus_codes(struct rkisp1_capture *cap,
>    */
>   const struct rkisp1_mbus_info *rkisp1_mbus_info_get_by_index(unsigned int index);
>   
> +/*
> + * rkisp1_path_count - Return the number of paths supported by the device
> + *
> + * Some devices only have a main path, while other device have both a main path
> + * and a self path. This function returns the number of paths that this device
> + * has, based on the feature flags. It should be used insted of checking
> + * ARRAY_SIZE of capture_devs/resizer_devs.
> + */
> +static inline unsigned int rkisp1_path_count(struct rkisp1_device *rkisp1)
> +{
> +	return rkisp1_has_feature(rkisp1, SELF_PATH) ? 2 : 1;
> +}
> +
>   /*
>    * rkisp1_sd_adjust_crop_rect - adjust a rectangle to fit into another rectangle.
>    *
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> index 44b753026ba2..106040c4181c 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> @@ -358,6 +358,7 @@ static const struct dev_pm_ops rkisp1_pm_ops = {
>   
>   static int rkisp1_create_links(struct rkisp1_device *rkisp1)
>   {
> +	unsigned int dev_count = rkisp1_path_count(rkisp1);
>   	unsigned int i;
>   	int ret;
>   
> @@ -373,7 +374,7 @@ static int rkisp1_create_links(struct rkisp1_device *rkisp1)
>   	}
>   
>   	/* create ISP->RSZ->CAP links */
> -	for (i = 0; i < 2; i++) {
> +	for (i = 0; i < dev_count; i++) {
>   		struct media_entity *resizer =
>   			&rkisp1->resizer_devs[i].sd.entity;
>   		struct media_entity *capture =
> @@ -505,7 +506,8 @@ static const struct rkisp1_info px30_isp_info = {
>   	.isrs = px30_isp_isrs,
>   	.isr_size = ARRAY_SIZE(px30_isp_isrs),
>   	.isp_ver = RKISP1_V12,
> -	.features = RKISP1_FEATURE_MIPI_CSI2,
> +	.features = RKISP1_FEATURE_MIPI_CSI2
> +		  | RKISP1_FEATURE_SELF_PATH,
>   };
>   
>   static const char * const rk3399_isp_clks[] = {
> @@ -524,7 +526,8 @@ static const struct rkisp1_info rk3399_isp_info = {
>   	.isrs = rk3399_isp_isrs,
>   	.isr_size = ARRAY_SIZE(rk3399_isp_isrs),
>   	.isp_ver = RKISP1_V10,
> -	.features = RKISP1_FEATURE_MIPI_CSI2,
> +	.features = RKISP1_FEATURE_MIPI_CSI2
> +		  | RKISP1_FEATURE_SELF_PATH,
>   };
>   
>   static const struct of_device_id rkisp1_of_match[] = {
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c
> index a8e377701302..dd77a31e6014 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c
> @@ -631,6 +631,7 @@ static int rkisp1_rsz_s_stream(struct v4l2_subdev *sd, int enable)
>   	struct rkisp1_device *rkisp1 = rsz->rkisp1;
>   	struct rkisp1_capture *other = &rkisp1->capture_devs[rsz->id ^ 1];
>   	enum rkisp1_shadow_regs_when when = RKISP1_SHADOW_REGS_SYNC;
> +	bool has_self_path = rkisp1_has_feature(rkisp1, SELF_PATH);
>   	struct v4l2_subdev_state *sd_state;
>   
>   	if (!enable) {
> @@ -639,7 +640,7 @@ static int rkisp1_rsz_s_stream(struct v4l2_subdev *sd, int enable)
>   		return 0;
>   	}
>   
> -	if (other->is_streaming)
> +	if (has_self_path && other->is_streaming)
>   		when = RKISP1_SHADOW_REGS_ASYNC;
>   
>   	sd_state = v4l2_subdev_lock_and_get_active_state(sd);
> @@ -731,10 +732,11 @@ static int rkisp1_rsz_register(struct rkisp1_resizer *rsz)
>   
>   int rkisp1_resizer_devs_register(struct rkisp1_device *rkisp1)
>   {
> +	unsigned int dev_count = rkisp1_path_count(rkisp1);
>   	unsigned int i;
>   	int ret;
>   
> -	for (i = 0; i < ARRAY_SIZE(rkisp1->resizer_devs); i++) {
> +	for (i = 0; i < dev_count; i++) {
>   		struct rkisp1_resizer *rsz = &rkisp1->resizer_devs[i];
>   
>   		rsz->rkisp1 = rkisp1;

[PATCH v5 04/10] media: rkisp1: Support devices lacking dual crop

[Paul Elder]

Some versions of the ISP supported by the rkisp1 driver, such as the ISP
in the i.MX8MP, lack the dual crop registers and don't support cropping
at the resizer input. They instead rely on cropping in the Image
Stabilization module, at the output of the ISP, to modify the resizer
input size and implement digital zoom.

Support those ISP versions by addind a dual crop feature flag, and
mapping the resizer input crop rectangle to either the resizer dual crop
module or the image stabilization module.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: Adam Ford <aford173@gmail.com>
---
 drivers/media/platform/rockchip/rkisp1/rkisp1-common.h  | 2 ++
 drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c     | 6 ++++--
 drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c | 6 ++++--
 3 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
index f7c251f79aa9..219d4a2547aa 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
@@ -112,6 +112,7 @@ enum rkisp1_isp_pad {
  * @RKISP1_FEATURE_MIPI_CSI2: The ISP has an internal MIPI CSI-2 receiver
  * @RKISP1_FEATURE_MAIN_STRIDE: The ISP supports configurable stride on the main path
  * @RKISP1_FEATURE_SELF_PATH: The ISP has a self path
+ * @RKISP1_FEATURE_DUAL_CROP: The ISP has the dual crop block at the resizer input
  *
  * The ISP features are stored in a bitmask in &rkisp1_info.features and allow
  * the driver to implement support for features present in some ISP versions
@@ -121,6 +122,7 @@ enum rkisp1_feature {
 	RKISP1_FEATURE_MIPI_CSI2 = BIT(0),
 	RKISP1_FEATURE_MAIN_STRIDE = BIT(1),
 	RKISP1_FEATURE_SELF_PATH = BIT(2),
+	RKISP1_FEATURE_DUAL_CROP = BIT(3),
 };
 
 #define rkisp1_has_feature(rkisp1, feature) \
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index 106040c4181c..e79fbd4d7e44 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -507,7 +507,8 @@ static const struct rkisp1_info px30_isp_info = {
 	.isr_size = ARRAY_SIZE(px30_isp_isrs),
 	.isp_ver = RKISP1_V12,
 	.features = RKISP1_FEATURE_MIPI_CSI2
-		  | RKISP1_FEATURE_SELF_PATH,
+		  | RKISP1_FEATURE_SELF_PATH
+		  | RKISP1_FEATURE_DUAL_CROP,
 };
 
 static const char * const rk3399_isp_clks[] = {
@@ -527,7 +528,8 @@ static const struct rkisp1_info rk3399_isp_info = {
 	.isr_size = ARRAY_SIZE(rk3399_isp_isrs),
 	.isp_ver = RKISP1_V10,
 	.features = RKISP1_FEATURE_MIPI_CSI2
-		  | RKISP1_FEATURE_SELF_PATH,
+		  | RKISP1_FEATURE_SELF_PATH
+		  | RKISP1_FEATURE_DUAL_CROP,
 };
 
 static const struct of_device_id rkisp1_of_match[] = {
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c
index dd77a31e6014..de2eb2c97cc4 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c
@@ -635,7 +635,8 @@ static int rkisp1_rsz_s_stream(struct v4l2_subdev *sd, int enable)
 	struct v4l2_subdev_state *sd_state;
 
 	if (!enable) {
-		rkisp1_dcrop_disable(rsz, RKISP1_SHADOW_REGS_ASYNC);
+		if (rkisp1_has_feature(rkisp1, DUAL_CROP))
+			rkisp1_dcrop_disable(rsz, RKISP1_SHADOW_REGS_ASYNC);
 		rkisp1_rsz_disable(rsz, RKISP1_SHADOW_REGS_ASYNC);
 		return 0;
 	}
@@ -646,7 +647,8 @@ static int rkisp1_rsz_s_stream(struct v4l2_subdev *sd, int enable)
 	sd_state = v4l2_subdev_lock_and_get_active_state(sd);
 
 	rkisp1_rsz_config(rsz, sd_state, when);
-	rkisp1_dcrop_config(rsz, sd_state);
+	if (rkisp1_has_feature(rkisp1, DUAL_CROP))
+		rkisp1_dcrop_config(rsz, sd_state);
 
 	v4l2_subdev_unlock_state(sd_state);
 
-- 
2.39.2

Re: [PATCH v5 04/10] media: rkisp1: Support devices lacking dual crop

[Tomi Valkeinen]

On 06/01/2024 18:02, Paul Elder wrote:
> Some versions of the ISP supported by the rkisp1 driver, such as the ISP
> in the i.MX8MP, lack the dual crop registers and don't support cropping
> at the resizer input. They instead rely on cropping in the Image
> Stabilization module, at the output of the ISP, to modify the resizer
> input size and implement digital zoom.
> 
> Support those ISP versions by addind a dual crop feature flag, and
> mapping the resizer input crop rectangle to either the resizer dual crop
> module or the image stabilization module.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
> Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
> Tested-by: Adam Ford <aford173@gmail.com>
> ---
>   drivers/media/platform/rockchip/rkisp1/rkisp1-common.h  | 2 ++
>   drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c     | 6 ++++--
>   drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c | 6 ++++--
>   3 files changed, 10 insertions(+), 4 deletions(-)

Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

  Tomi

> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> index f7c251f79aa9..219d4a2547aa 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> @@ -112,6 +112,7 @@ enum rkisp1_isp_pad {
>    * @RKISP1_FEATURE_MIPI_CSI2: The ISP has an internal MIPI CSI-2 receiver
>    * @RKISP1_FEATURE_MAIN_STRIDE: The ISP supports configurable stride on the main path
>    * @RKISP1_FEATURE_SELF_PATH: The ISP has a self path
> + * @RKISP1_FEATURE_DUAL_CROP: The ISP has the dual crop block at the resizer input
>    *
>    * The ISP features are stored in a bitmask in &rkisp1_info.features and allow
>    * the driver to implement support for features present in some ISP versions
> @@ -121,6 +122,7 @@ enum rkisp1_feature {
>   	RKISP1_FEATURE_MIPI_CSI2 = BIT(0),
>   	RKISP1_FEATURE_MAIN_STRIDE = BIT(1),
>   	RKISP1_FEATURE_SELF_PATH = BIT(2),
> +	RKISP1_FEATURE_DUAL_CROP = BIT(3),
>   };
>   
>   #define rkisp1_has_feature(rkisp1, feature) \
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> index 106040c4181c..e79fbd4d7e44 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> @@ -507,7 +507,8 @@ static const struct rkisp1_info px30_isp_info = {
>   	.isr_size = ARRAY_SIZE(px30_isp_isrs),
>   	.isp_ver = RKISP1_V12,
>   	.features = RKISP1_FEATURE_MIPI_CSI2
> -		  | RKISP1_FEATURE_SELF_PATH,
> +		  | RKISP1_FEATURE_SELF_PATH
> +		  | RKISP1_FEATURE_DUAL_CROP,
>   };
>   
>   static const char * const rk3399_isp_clks[] = {
> @@ -527,7 +528,8 @@ static const struct rkisp1_info rk3399_isp_info = {
>   	.isr_size = ARRAY_SIZE(rk3399_isp_isrs),
>   	.isp_ver = RKISP1_V10,
>   	.features = RKISP1_FEATURE_MIPI_CSI2
> -		  | RKISP1_FEATURE_SELF_PATH,
> +		  | RKISP1_FEATURE_SELF_PATH
> +		  | RKISP1_FEATURE_DUAL_CROP,
>   };
>   
>   static const struct of_device_id rkisp1_of_match[] = {
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c
> index dd77a31e6014..de2eb2c97cc4 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-resizer.c
> @@ -635,7 +635,8 @@ static int rkisp1_rsz_s_stream(struct v4l2_subdev *sd, int enable)
>   	struct v4l2_subdev_state *sd_state;
>   
>   	if (!enable) {
> -		rkisp1_dcrop_disable(rsz, RKISP1_SHADOW_REGS_ASYNC);
> +		if (rkisp1_has_feature(rkisp1, DUAL_CROP))
> +			rkisp1_dcrop_disable(rsz, RKISP1_SHADOW_REGS_ASYNC);
>   		rkisp1_rsz_disable(rsz, RKISP1_SHADOW_REGS_ASYNC);
>   		return 0;
>   	}
> @@ -646,7 +647,8 @@ static int rkisp1_rsz_s_stream(struct v4l2_subdev *sd, int enable)
>   	sd_state = v4l2_subdev_lock_and_get_active_state(sd);
>   
>   	rkisp1_rsz_config(rsz, sd_state, when);
> -	rkisp1_dcrop_config(rsz, sd_state);
> +	if (rkisp1_has_feature(rkisp1, DUAL_CROP))
> +		rkisp1_dcrop_config(rsz, sd_state);
>   
>   	v4l2_subdev_unlock_state(sd_state);
>   

[PATCH v5 05/10] dt-bindings: media: rkisp1: Add i.MX8MP ISP to compatible

[Paul Elder]

The i.MX8MP ISP is compatbile with the rkisp1 driver. Add it to the list
of compatible strings. While at it, expand on the description of the
clocks to make it clear which clock in the i.MX8MP ISP they map to,
based on the names from the datasheet.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: Adam Ford <aford173@gmail.com>
---
Changes since v1:

- Add fsl,blk-ctrl property
- Make iommus, phys and phy-names conditional on compatible
---
 .../bindings/media/rockchip-isp1.yaml         | 37 ++++++++++++++++---
 1 file changed, 31 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/media/rockchip-isp1.yaml b/Documentation/devicetree/bindings/media/rockchip-isp1.yaml
index afcaa427d48b..6be00aca4181 100644
--- a/Documentation/devicetree/bindings/media/rockchip-isp1.yaml
+++ b/Documentation/devicetree/bindings/media/rockchip-isp1.yaml
@@ -16,6 +16,7 @@ description: |
 properties:
   compatible:
     enum:
+      - fsl,imx8mp-isp
       - rockchip,px30-cif-isp
       - rockchip,rk3399-cif-isp
 
@@ -36,9 +37,9 @@ properties:
     minItems: 3
     items:
       # isp0 and isp1
-      - description: ISP clock
-      - description: ISP AXI clock
-      - description: ISP AHB clock
+      - description: ISP clock (for imx8mp, clk)
+      - description: ISP AXI clock (for imx8mp, m_hclk)
+      - description: ISP AHB clock (for imx8mp, hclk)
       # only for isp1
       - description: ISP Pixel clock
 
@@ -52,6 +53,13 @@ properties:
       # only for isp1
       - const: pclk
 
+  fsl,blk-ctrl:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    maxItems: 1
+    description:
+      A phandle to the media block control for the ISP, followed by a cell
+      containing the index of the gasket.
+
   iommus:
     maxItems: 1
 
@@ -113,9 +121,6 @@ required:
   - interrupts
   - clocks
   - clock-names
-  - iommus
-  - phys
-  - phy-names
   - power-domains
   - ports
 
@@ -143,6 +148,26 @@ allOf:
       required:
         - interrupt-names
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: fsl,imx8mp-isp
+    then:
+      properties:
+        iommus: false
+        phys: false
+        phy-names: false
+      required:
+        - fsl,blk-ctrl
+    else:
+      properties:
+        fsl,blk-ctrl: false
+      required:
+        - iommus
+        - phys
+        - phy-names
+
 additionalProperties: false
 
 examples:
-- 
2.39.2

[PATCH v5 06/10] media: rkisp1: Add match data for i.MX8MP ISP

[Paul Elder]

Add match data to the rkisp1 driver to match the i.MX8MP ISP.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: Adam Ford <aford173@gmail.com>
---
 .../platform/rockchip/rkisp1/rkisp1-dev.c     | 23 +++++++++++++++++++
 include/uapi/linux/rkisp1-config.h            |  2 ++
 2 files changed, 25 insertions(+)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index e79fbd4d7e44..29a8249852d4 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -532,6 +532,25 @@ static const struct rkisp1_info rk3399_isp_info = {
 		  | RKISP1_FEATURE_DUAL_CROP,
 };
 
+static const char * const imx8mp_isp_clks[] = {
+	"isp",
+	"hclk",
+	"aclk",
+};
+
+static const struct rkisp1_isr_data imx8mp_isp_isrs[] = {
+	{ NULL, rkisp1_isr, BIT(RKISP1_IRQ_ISP) | BIT(RKISP1_IRQ_MI) },
+};
+
+static const struct rkisp1_info imx8mp_isp_info = {
+	.clks = imx8mp_isp_clks,
+	.clk_size = ARRAY_SIZE(imx8mp_isp_clks),
+	.isrs = imx8mp_isp_isrs,
+	.isr_size = ARRAY_SIZE(imx8mp_isp_isrs),
+	.isp_ver = IMX8MP_V10,
+	.features = RKISP1_FEATURE_MAIN_STRIDE,
+};
+
 static const struct of_device_id rkisp1_of_match[] = {
 	{
 		.compatible = "rockchip,px30-cif-isp",
@@ -541,6 +560,10 @@ static const struct of_device_id rkisp1_of_match[] = {
 		.compatible = "rockchip,rk3399-cif-isp",
 		.data = &rk3399_isp_info,
 	},
+	{
+		.compatible = "fsl,imx8mp-isp",
+		.data = &imx8mp_isp_info,
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, rkisp1_of_match);
diff --git a/include/uapi/linux/rkisp1-config.h b/include/uapi/linux/rkisp1-config.h
index 730673ecc63d..f602442c2018 100644
--- a/include/uapi/linux/rkisp1-config.h
+++ b/include/uapi/linux/rkisp1-config.h
@@ -179,12 +179,14 @@
  * @RKISP1_V11: declared in the original vendor code, but not used
  * @RKISP1_V12: used at least in rk3326 and px30
  * @RKISP1_V13: used at least in rk1808
+ * @IMX8MP_V10: used in at least imx8mp
  */
 enum rkisp1_cif_isp_version {
 	RKISP1_V10 = 10,
 	RKISP1_V11,
 	RKISP1_V12,
 	RKISP1_V13,
+	IMX8MP_V10,
 };
 
 enum rkisp1_cif_isp_histogram_mode {
-- 
2.39.2

Re: [PATCH v5 06/10] media: rkisp1: Add match data for i.MX8MP ISP

[Tomi Valkeinen]

On 06/01/2024 18:02, Paul Elder wrote:
> Add match data to the rkisp1 driver to match the i.MX8MP ISP.
> 
> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
> Reviewed-by: Rob Herring <robh@kernel.org>
> Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
> Tested-by: Adam Ford <aford173@gmail.com>
> ---
>   .../platform/rockchip/rkisp1/rkisp1-dev.c     | 23 +++++++++++++++++++
>   include/uapi/linux/rkisp1-config.h            |  2 ++
>   2 files changed, 25 insertions(+)

Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

  Tomi

> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> index e79fbd4d7e44..29a8249852d4 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> @@ -532,6 +532,25 @@ static const struct rkisp1_info rk3399_isp_info = {
>   		  | RKISP1_FEATURE_DUAL_CROP,
>   };
>   
> +static const char * const imx8mp_isp_clks[] = {
> +	"isp",
> +	"hclk",
> +	"aclk",
> +};
> +
> +static const struct rkisp1_isr_data imx8mp_isp_isrs[] = {
> +	{ NULL, rkisp1_isr, BIT(RKISP1_IRQ_ISP) | BIT(RKISP1_IRQ_MI) },
> +};
> +
> +static const struct rkisp1_info imx8mp_isp_info = {
> +	.clks = imx8mp_isp_clks,
> +	.clk_size = ARRAY_SIZE(imx8mp_isp_clks),
> +	.isrs = imx8mp_isp_isrs,
> +	.isr_size = ARRAY_SIZE(imx8mp_isp_isrs),
> +	.isp_ver = IMX8MP_V10,
> +	.features = RKISP1_FEATURE_MAIN_STRIDE,
> +};
> +
>   static const struct of_device_id rkisp1_of_match[] = {
>   	{
>   		.compatible = "rockchip,px30-cif-isp",
> @@ -541,6 +560,10 @@ static const struct of_device_id rkisp1_of_match[] = {
>   		.compatible = "rockchip,rk3399-cif-isp",
>   		.data = &rk3399_isp_info,
>   	},
> +	{
> +		.compatible = "fsl,imx8mp-isp",
> +		.data = &imx8mp_isp_info,
> +	},
>   	{},
>   };
>   MODULE_DEVICE_TABLE(of, rkisp1_of_match);
> diff --git a/include/uapi/linux/rkisp1-config.h b/include/uapi/linux/rkisp1-config.h
> index 730673ecc63d..f602442c2018 100644
> --- a/include/uapi/linux/rkisp1-config.h
> +++ b/include/uapi/linux/rkisp1-config.h
> @@ -179,12 +179,14 @@
>    * @RKISP1_V11: declared in the original vendor code, but not used
>    * @RKISP1_V12: used at least in rk3326 and px30
>    * @RKISP1_V13: used at least in rk1808
> + * @IMX8MP_V10: used in at least imx8mp
>    */
>   enum rkisp1_cif_isp_version {
>   	RKISP1_V10 = 10,
>   	RKISP1_V11,
>   	RKISP1_V12,
>   	RKISP1_V13,
> +	IMX8MP_V10,
>   };
>   
>   enum rkisp1_cif_isp_histogram_mode {

[PATCH v5 07/10] media: rkisp1: Configure gasket on i.MX8MP

[Paul Elder]

From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

The i.MX8MP has a gasket between the CSI-2 receiver and the ISP.
Configure and enable it when starting the ISP, and disable it when
stopping.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: Adam Ford <aford173@gmail.com>
---
 .../platform/rockchip/rkisp1/rkisp1-common.h  |   5 +
 .../platform/rockchip/rkisp1/rkisp1-dev.c     |  16 +++
 .../platform/rockchip/rkisp1/rkisp1-isp.c     | 131 +++++++++++++++++-
 3 files changed, 149 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
index 219d4a2547aa..69940014d597 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
@@ -24,6 +24,7 @@
 #include "rkisp1-regs.h"
 
 struct dentry;
+struct regmap;
 
 /*
  * flags on the 'direction' field in struct rkisp1_mbus_info' that indicate
@@ -444,6 +445,8 @@ struct rkisp1_debug {
  * @dev:	   a pointer to the struct device
  * @clk_size:	   number of clocks
  * @clks:	   array of clocks
+ * @gasket:	   the gasket - i.MX8MP only
+ * @gasket_id:	   the gasket ID (0 or 1) - i.MX8MP only
  * @v4l2_dev:	   v4l2_device variable
  * @media_dev:	   media_device variable
  * @notifier:	   a notifier to register on the v4l2-async API to be notified on the sensor
@@ -466,6 +469,8 @@ struct rkisp1_device {
 	struct device *dev;
 	unsigned int clk_size;
 	struct clk_bulk_data clks[RKISP1_MAX_BUS_CLK];
+	struct regmap *gasket;
+	unsigned int gasket_id;
 	struct v4l2_device v4l2_dev;
 	struct media_device media_dev;
 	struct v4l2_async_notifier notifier;
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index 29a8249852d4..01f811b9f9a5 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -10,6 +10,7 @@
 
 #include <linux/clk.h>
 #include <linux/interrupt.h>
+#include <linux/mfd/syscon.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_graph.h>
@@ -624,6 +625,21 @@ static int rkisp1_probe(struct platform_device *pdev)
 		return ret;
 	rkisp1->clk_size = info->clk_size;
 
+	if (info->isp_ver == IMX8MP_V10) {
+		unsigned int id;
+
+		rkisp1->gasket = syscon_regmap_lookup_by_phandle_args(dev->of_node,
+								      "fsl,blk-ctrl",
+								      1, &id);
+		if (IS_ERR(rkisp1->gasket)) {
+			ret = PTR_ERR(rkisp1->gasket);
+			dev_err(dev, "failed to get gasket: %d\n", ret);
+			return ret;
+		}
+
+		rkisp1->gasket_id = id;
+	}
+
 	pm_runtime_enable(&pdev->dev);
 
 	ret = pm_runtime_resume_and_get(&pdev->dev);
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
index 78a1f7a1499b..bfd6dc3559cc 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
@@ -10,6 +10,7 @@
 
 #include <linux/iopoll.h>
 #include <linux/pm_runtime.h>
+#include <linux/regmap.h>
 #include <linux/videodev2.h>
 #include <linux/vmalloc.h>
 
@@ -53,6 +54,115 @@
  * +---------------------------------------------------------+
  */
 
+/* -----------------------------------------------------------------------------
+ * Media block control (i.MX8MP only)
+ */
+
+#define ISP_DEWARP_CONTROL				0x0138
+
+#define ISP_DEWARP_CONTROL_MIPI_CSI2_HS_POLARITY	BIT(22)
+#define ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_RISING	(0 << 20)
+#define ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_NEGATIVE	(1 << 20)
+#define ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_POSITIVE	(2 << 20)
+#define ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_FALLING	(3 << 20)
+#define ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_MASK	GENMASK(21, 20)
+#define ISP_DEWARP_CONTROL_MIPI_ISP2_LEFT_JUST_MODE	BIT(19)
+#define ISP_DEWARP_CONTROL_MIPI_ISP2_DATA_TYPE(dt)	((dt) << 13)
+#define ISP_DEWARP_CONTROL_MIPI_ISP2_DATA_TYPE_MASK	GENMASK(18, 13)
+
+#define ISP_DEWARP_CONTROL_MIPI_CSI1_HS_POLARITY	BIT(12)
+#define ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_RISING	(0 << 10)
+#define ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_NEGATIVE	(1 << 10)
+#define ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_POSITIVE	(2 << 10)
+#define ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_FALLING	(3 << 10)
+#define ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_MASK	GENMASK(11, 10)
+#define ISP_DEWARP_CONTROL_MIPI_ISP1_LEFT_JUST_MODE	BIT(9)
+#define ISP_DEWARP_CONTROL_MIPI_ISP1_DATA_TYPE(dt)	((dt) << 3)
+#define ISP_DEWARP_CONTROL_MIPI_ISP1_DATA_TYPE_MASK	GENMASK(8, 3)
+
+#define ISP_DEWARP_CONTROL_GPR_ISP_1_DISABLE		BIT(1)
+#define ISP_DEWARP_CONTROL_GPR_ISP_0_DISABLE		BIT(0)
+
+static int rkisp1_gasket_enable(struct rkisp1_device *rkisp1,
+				struct media_pad *source)
+{
+	struct v4l2_subdev *source_sd;
+	struct v4l2_mbus_frame_desc fd;
+	unsigned int dt;
+	u32 mask;
+	u32 val;
+	int ret;
+
+	/*
+	 * Configure and enable the gasket with the CSI-2 data type. Set the
+	 * vsync polarity as active high, as that is what the ISP is configured
+	 * to expect in ISP_ACQ_PROP. Enable left justification, as the i.MX8MP
+	 * ISP has a 16-bit wide input and expects data to be left-aligned.
+	 */
+
+	source_sd = media_entity_to_v4l2_subdev(source->entity);
+	ret = v4l2_subdev_call(source_sd, pad, get_frame_desc,
+			       source->index, &fd);
+	if (ret) {
+		dev_err(rkisp1->dev,
+			"failed to get frame descriptor from '%s':%u: %d\n",
+			source_sd->name, 0, ret);
+		return ret;
+	}
+
+	if (fd.num_entries != 1) {
+		dev_err(rkisp1->dev, "invalid frame descriptor for '%s':%u\n",
+			source_sd->name, 0);
+		return -EINVAL;
+	}
+
+	dt = fd.entry[0].bus.csi2.dt;
+
+	if (rkisp1->gasket_id == 0) {
+		mask = ISP_DEWARP_CONTROL_MIPI_CSI1_HS_POLARITY
+		     | ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_MASK
+		     | ISP_DEWARP_CONTROL_MIPI_ISP1_LEFT_JUST_MODE
+		     | ISP_DEWARP_CONTROL_MIPI_ISP1_DATA_TYPE_MASK
+		     | ISP_DEWARP_CONTROL_GPR_ISP_0_DISABLE;
+		val = ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_POSITIVE
+		    | ISP_DEWARP_CONTROL_MIPI_ISP1_LEFT_JUST_MODE
+		    | ISP_DEWARP_CONTROL_MIPI_ISP1_DATA_TYPE(dt);
+	} else {
+		mask = ISP_DEWARP_CONTROL_MIPI_CSI2_HS_POLARITY
+		     | ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_MASK
+		     | ISP_DEWARP_CONTROL_MIPI_ISP2_LEFT_JUST_MODE
+		     | ISP_DEWARP_CONTROL_MIPI_ISP2_DATA_TYPE_MASK
+		     | ISP_DEWARP_CONTROL_GPR_ISP_1_DISABLE;
+		val = ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_POSITIVE
+		    | ISP_DEWARP_CONTROL_MIPI_ISP2_LEFT_JUST_MODE
+		    | ISP_DEWARP_CONTROL_MIPI_ISP2_DATA_TYPE(dt);
+	}
+
+	regmap_update_bits(rkisp1->gasket, ISP_DEWARP_CONTROL, mask, val);
+
+	return 0;
+}
+
+static void rkisp1_gasket_disable(struct rkisp1_device *rkisp1)
+{
+	u32 mask;
+	u32 val;
+
+	if (rkisp1->gasket_id == 1) {
+		mask = ISP_DEWARP_CONTROL_MIPI_ISP2_LEFT_JUST_MODE
+		     | ISP_DEWARP_CONTROL_MIPI_ISP2_DATA_TYPE_MASK
+		     | ISP_DEWARP_CONTROL_GPR_ISP_1_DISABLE;
+		val = ISP_DEWARP_CONTROL_GPR_ISP_1_DISABLE;
+	} else {
+		mask = ISP_DEWARP_CONTROL_MIPI_ISP1_LEFT_JUST_MODE
+		     | ISP_DEWARP_CONTROL_MIPI_ISP1_DATA_TYPE_MASK
+		     | ISP_DEWARP_CONTROL_GPR_ISP_0_DISABLE;
+		val = ISP_DEWARP_CONTROL_GPR_ISP_0_DISABLE;
+	}
+
+	regmap_update_bits(rkisp1->gasket, ISP_DEWARP_CONTROL, mask, val);
+}
+
 /* ----------------------------------------------------------------------------
  * Camera Interface registers configurations
  */
@@ -291,6 +401,9 @@ static void rkisp1_isp_stop(struct rkisp1_isp *isp)
 		     RKISP1_CIF_VI_IRCL_MIPI_SW_RST |
 		     RKISP1_CIF_VI_IRCL_ISP_SW_RST);
 	rkisp1_write(rkisp1, RKISP1_CIF_VI_IRCL, 0x0);
+
+	if (rkisp1->info->isp_ver == IMX8MP_V10)
+		rkisp1_gasket_disable(rkisp1);
 }
 
 static void rkisp1_config_clk(struct rkisp1_isp *isp)
@@ -315,16 +428,24 @@ static void rkisp1_config_clk(struct rkisp1_isp *isp)
 	}
 }
 
-static void rkisp1_isp_start(struct rkisp1_isp *isp,
-			     struct v4l2_subdev_state *sd_state)
+static int rkisp1_isp_start(struct rkisp1_isp *isp,
+			    struct v4l2_subdev_state *sd_state,
+			    struct media_pad *source)
 {
 	struct rkisp1_device *rkisp1 = isp->rkisp1;
 	const struct v4l2_mbus_framefmt *src_fmt;
 	const struct rkisp1_mbus_info *src_info;
 	u32 val;
+	int ret;
 
 	rkisp1_config_clk(isp);
 
+	if (rkisp1->info->isp_ver == IMX8MP_V10) {
+		ret = rkisp1_gasket_enable(rkisp1, source);
+		if (ret)
+			return ret;
+	}
+
 	/* Activate ISP */
 	val = rkisp1_read(rkisp1, RKISP1_CIF_ISP_CTRL);
 	val |= RKISP1_CIF_ISP_CTRL_ISP_CFG_UPD |
@@ -338,6 +459,8 @@ static void rkisp1_isp_start(struct rkisp1_isp *isp,
 
 	if (src_info->pixel_enc != V4L2_PIXEL_ENC_BAYER)
 		rkisp1_params_post_configure(&rkisp1->params);
+
+	return 0;
 }
 
 /* ----------------------------------------------------------------------------
@@ -848,7 +971,9 @@ static int rkisp1_isp_s_stream(struct v4l2_subdev *sd, int enable)
 	if (ret)
 		goto out_unlock;
 
-	rkisp1_isp_start(isp, sd_state);
+	ret = rkisp1_isp_start(isp, sd_state, source_pad);
+	if (ret)
+		goto out_unlock;
 
 	ret = v4l2_subdev_call(rkisp1->source, video, s_stream, true);
 	if (ret) {
-- 
2.39.2

Re: [PATCH v5 07/10] media: rkisp1: Configure gasket on i.MX8MP

[Tomi Valkeinen]

On 06/01/2024 18:02, Paul Elder wrote:
> From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> 
> The i.MX8MP has a gasket between the CSI-2 receiver and the ISP.
> Configure and enable it when starting the ISP, and disable it when
> stopping.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
> Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
> Tested-by: Adam Ford <aford173@gmail.com>
> ---
>   .../platform/rockchip/rkisp1/rkisp1-common.h  |   5 +
>   .../platform/rockchip/rkisp1/rkisp1-dev.c     |  16 +++
>   .../platform/rockchip/rkisp1/rkisp1-isp.c     | 131 +++++++++++++++++-
>   3 files changed, 149 insertions(+), 3 deletions(-)

Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

  Tomi

> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> index 219d4a2547aa..69940014d597 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> @@ -24,6 +24,7 @@
>   #include "rkisp1-regs.h"
>   
>   struct dentry;
> +struct regmap;
>   
>   /*
>    * flags on the 'direction' field in struct rkisp1_mbus_info' that indicate
> @@ -444,6 +445,8 @@ struct rkisp1_debug {
>    * @dev:	   a pointer to the struct device
>    * @clk_size:	   number of clocks
>    * @clks:	   array of clocks
> + * @gasket:	   the gasket - i.MX8MP only
> + * @gasket_id:	   the gasket ID (0 or 1) - i.MX8MP only
>    * @v4l2_dev:	   v4l2_device variable
>    * @media_dev:	   media_device variable
>    * @notifier:	   a notifier to register on the v4l2-async API to be notified on the sensor
> @@ -466,6 +469,8 @@ struct rkisp1_device {
>   	struct device *dev;
>   	unsigned int clk_size;
>   	struct clk_bulk_data clks[RKISP1_MAX_BUS_CLK];
> +	struct regmap *gasket;
> +	unsigned int gasket_id;
>   	struct v4l2_device v4l2_dev;
>   	struct media_device media_dev;
>   	struct v4l2_async_notifier notifier;
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> index 29a8249852d4..01f811b9f9a5 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> @@ -10,6 +10,7 @@
>   
>   #include <linux/clk.h>
>   #include <linux/interrupt.h>
> +#include <linux/mfd/syscon.h>
>   #include <linux/module.h>
>   #include <linux/of.h>
>   #include <linux/of_graph.h>
> @@ -624,6 +625,21 @@ static int rkisp1_probe(struct platform_device *pdev)
>   		return ret;
>   	rkisp1->clk_size = info->clk_size;
>   
> +	if (info->isp_ver == IMX8MP_V10) {
> +		unsigned int id;
> +
> +		rkisp1->gasket = syscon_regmap_lookup_by_phandle_args(dev->of_node,
> +								      "fsl,blk-ctrl",
> +								      1, &id);
> +		if (IS_ERR(rkisp1->gasket)) {
> +			ret = PTR_ERR(rkisp1->gasket);
> +			dev_err(dev, "failed to get gasket: %d\n", ret);
> +			return ret;
> +		}
> +
> +		rkisp1->gasket_id = id;
> +	}
> +
>   	pm_runtime_enable(&pdev->dev);
>   
>   	ret = pm_runtime_resume_and_get(&pdev->dev);
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
> index 78a1f7a1499b..bfd6dc3559cc 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
> @@ -10,6 +10,7 @@
>   
>   #include <linux/iopoll.h>
>   #include <linux/pm_runtime.h>
> +#include <linux/regmap.h>
>   #include <linux/videodev2.h>
>   #include <linux/vmalloc.h>
>   
> @@ -53,6 +54,115 @@
>    * +---------------------------------------------------------+
>    */
>   
> +/* -----------------------------------------------------------------------------
> + * Media block control (i.MX8MP only)
> + */
> +
> +#define ISP_DEWARP_CONTROL				0x0138
> +
> +#define ISP_DEWARP_CONTROL_MIPI_CSI2_HS_POLARITY	BIT(22)
> +#define ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_RISING	(0 << 20)
> +#define ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_NEGATIVE	(1 << 20)
> +#define ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_POSITIVE	(2 << 20)
> +#define ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_FALLING	(3 << 20)
> +#define ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_MASK	GENMASK(21, 20)
> +#define ISP_DEWARP_CONTROL_MIPI_ISP2_LEFT_JUST_MODE	BIT(19)
> +#define ISP_DEWARP_CONTROL_MIPI_ISP2_DATA_TYPE(dt)	((dt) << 13)
> +#define ISP_DEWARP_CONTROL_MIPI_ISP2_DATA_TYPE_MASK	GENMASK(18, 13)
> +
> +#define ISP_DEWARP_CONTROL_MIPI_CSI1_HS_POLARITY	BIT(12)
> +#define ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_RISING	(0 << 10)
> +#define ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_NEGATIVE	(1 << 10)
> +#define ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_POSITIVE	(2 << 10)
> +#define ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_FALLING	(3 << 10)
> +#define ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_MASK	GENMASK(11, 10)
> +#define ISP_DEWARP_CONTROL_MIPI_ISP1_LEFT_JUST_MODE	BIT(9)
> +#define ISP_DEWARP_CONTROL_MIPI_ISP1_DATA_TYPE(dt)	((dt) << 3)
> +#define ISP_DEWARP_CONTROL_MIPI_ISP1_DATA_TYPE_MASK	GENMASK(8, 3)
> +
> +#define ISP_DEWARP_CONTROL_GPR_ISP_1_DISABLE		BIT(1)
> +#define ISP_DEWARP_CONTROL_GPR_ISP_0_DISABLE		BIT(0)
> +
> +static int rkisp1_gasket_enable(struct rkisp1_device *rkisp1,
> +				struct media_pad *source)
> +{
> +	struct v4l2_subdev *source_sd;
> +	struct v4l2_mbus_frame_desc fd;
> +	unsigned int dt;
> +	u32 mask;
> +	u32 val;
> +	int ret;
> +
> +	/*
> +	 * Configure and enable the gasket with the CSI-2 data type. Set the
> +	 * vsync polarity as active high, as that is what the ISP is configured
> +	 * to expect in ISP_ACQ_PROP. Enable left justification, as the i.MX8MP
> +	 * ISP has a 16-bit wide input and expects data to be left-aligned.
> +	 */
> +
> +	source_sd = media_entity_to_v4l2_subdev(source->entity);
> +	ret = v4l2_subdev_call(source_sd, pad, get_frame_desc,
> +			       source->index, &fd);
> +	if (ret) {
> +		dev_err(rkisp1->dev,
> +			"failed to get frame descriptor from '%s':%u: %d\n",
> +			source_sd->name, 0, ret);
> +		return ret;
> +	}
> +
> +	if (fd.num_entries != 1) {
> +		dev_err(rkisp1->dev, "invalid frame descriptor for '%s':%u\n",
> +			source_sd->name, 0);
> +		return -EINVAL;
> +	}
> +
> +	dt = fd.entry[0].bus.csi2.dt;
> +
> +	if (rkisp1->gasket_id == 0) {
> +		mask = ISP_DEWARP_CONTROL_MIPI_CSI1_HS_POLARITY
> +		     | ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_MASK
> +		     | ISP_DEWARP_CONTROL_MIPI_ISP1_LEFT_JUST_MODE
> +		     | ISP_DEWARP_CONTROL_MIPI_ISP1_DATA_TYPE_MASK
> +		     | ISP_DEWARP_CONTROL_GPR_ISP_0_DISABLE;
> +		val = ISP_DEWARP_CONTROL_MIPI_CSI1_VS_SEL_POSITIVE
> +		    | ISP_DEWARP_CONTROL_MIPI_ISP1_LEFT_JUST_MODE
> +		    | ISP_DEWARP_CONTROL_MIPI_ISP1_DATA_TYPE(dt);
> +	} else {
> +		mask = ISP_DEWARP_CONTROL_MIPI_CSI2_HS_POLARITY
> +		     | ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_MASK
> +		     | ISP_DEWARP_CONTROL_MIPI_ISP2_LEFT_JUST_MODE
> +		     | ISP_DEWARP_CONTROL_MIPI_ISP2_DATA_TYPE_MASK
> +		     | ISP_DEWARP_CONTROL_GPR_ISP_1_DISABLE;
> +		val = ISP_DEWARP_CONTROL_MIPI_CSI2_VS_SEL_POSITIVE
> +		    | ISP_DEWARP_CONTROL_MIPI_ISP2_LEFT_JUST_MODE
> +		    | ISP_DEWARP_CONTROL_MIPI_ISP2_DATA_TYPE(dt);
> +	}
> +
> +	regmap_update_bits(rkisp1->gasket, ISP_DEWARP_CONTROL, mask, val);
> +
> +	return 0;
> +}
> +
> +static void rkisp1_gasket_disable(struct rkisp1_device *rkisp1)
> +{
> +	u32 mask;
> +	u32 val;
> +
> +	if (rkisp1->gasket_id == 1) {
> +		mask = ISP_DEWARP_CONTROL_MIPI_ISP2_LEFT_JUST_MODE
> +		     | ISP_DEWARP_CONTROL_MIPI_ISP2_DATA_TYPE_MASK
> +		     | ISP_DEWARP_CONTROL_GPR_ISP_1_DISABLE;
> +		val = ISP_DEWARP_CONTROL_GPR_ISP_1_DISABLE;
> +	} else {
> +		mask = ISP_DEWARP_CONTROL_MIPI_ISP1_LEFT_JUST_MODE
> +		     | ISP_DEWARP_CONTROL_MIPI_ISP1_DATA_TYPE_MASK
> +		     | ISP_DEWARP_CONTROL_GPR_ISP_0_DISABLE;
> +		val = ISP_DEWARP_CONTROL_GPR_ISP_0_DISABLE;
> +	}
> +
> +	regmap_update_bits(rkisp1->gasket, ISP_DEWARP_CONTROL, mask, val);
> +}
> +
>   /* ----------------------------------------------------------------------------
>    * Camera Interface registers configurations
>    */
> @@ -291,6 +401,9 @@ static void rkisp1_isp_stop(struct rkisp1_isp *isp)
>   		     RKISP1_CIF_VI_IRCL_MIPI_SW_RST |
>   		     RKISP1_CIF_VI_IRCL_ISP_SW_RST);
>   	rkisp1_write(rkisp1, RKISP1_CIF_VI_IRCL, 0x0);
> +
> +	if (rkisp1->info->isp_ver == IMX8MP_V10)
> +		rkisp1_gasket_disable(rkisp1);
>   }
>   
>   static void rkisp1_config_clk(struct rkisp1_isp *isp)
> @@ -315,16 +428,24 @@ static void rkisp1_config_clk(struct rkisp1_isp *isp)
>   	}
>   }
>   
> -static void rkisp1_isp_start(struct rkisp1_isp *isp,
> -			     struct v4l2_subdev_state *sd_state)
> +static int rkisp1_isp_start(struct rkisp1_isp *isp,
> +			    struct v4l2_subdev_state *sd_state,
> +			    struct media_pad *source)
>   {
>   	struct rkisp1_device *rkisp1 = isp->rkisp1;
>   	const struct v4l2_mbus_framefmt *src_fmt;
>   	const struct rkisp1_mbus_info *src_info;
>   	u32 val;
> +	int ret;
>   
>   	rkisp1_config_clk(isp);
>   
> +	if (rkisp1->info->isp_ver == IMX8MP_V10) {
> +		ret = rkisp1_gasket_enable(rkisp1, source);
> +		if (ret)
> +			return ret;
> +	}
> +
>   	/* Activate ISP */
>   	val = rkisp1_read(rkisp1, RKISP1_CIF_ISP_CTRL);
>   	val |= RKISP1_CIF_ISP_CTRL_ISP_CFG_UPD |
> @@ -338,6 +459,8 @@ static void rkisp1_isp_start(struct rkisp1_isp *isp,
>   
>   	if (src_info->pixel_enc != V4L2_PIXEL_ENC_BAYER)
>   		rkisp1_params_post_configure(&rkisp1->params);
> +
> +	return 0;
>   }
>   
>   /* ----------------------------------------------------------------------------
> @@ -848,7 +971,9 @@ static int rkisp1_isp_s_stream(struct v4l2_subdev *sd, int enable)
>   	if (ret)
>   		goto out_unlock;
>   
> -	rkisp1_isp_start(isp, sd_state);
> +	ret = rkisp1_isp_start(isp, sd_state, source_pad);
> +	if (ret)
> +		goto out_unlock;
>   
>   	ret = v4l2_subdev_call(rkisp1->source, video, s_stream, true);
>   	if (ret) {

[PATCH v5 08/10] media: rkisp1: Shift DMA buffer addresses on i.MX8MP

[Paul Elder]

On the ISP that is integrated in the i.MX8MP, DMA addresses have been
extended to 34 bits, with the 32 MSBs stored in the DMA address
registers and the 2 LSBs set to 0. Shift the buffer addresses right by 2
on that platform.

While at it, fix an issue where if the system allocated CMA memory
happens to be located higher than 32-bits, the driver will fail to
allocate CMA memory and falls back to kmalloc(), which will fail for
larger allocations (over MAX_ORDER, which often mean 4MB).

Fix this by setting the dma mask to 34 bits when allowed, and fixing the
use dma_addr_t when storing dma addresses instead of u32.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: Adam Ford <aford173@gmail.com>
---
Changes since v4:

- Squash in fix from Tomi:
  - https://gitlab.com/ideasonboard/nxp/linux/-/commit/d6477fe673b1c0d05d12ae21d8db9a03b07e7fea

Changes since v2:

- Document the RKISP1_FEATURE_DMA_34BIT bit
- Use the rkisp1_has_feature() macro
---
 .../platform/rockchip/rkisp1/rkisp1-capture.c | 20 ++++++++++---------
 .../platform/rockchip/rkisp1/rkisp1-common.h  |  4 +++-
 .../platform/rockchip/rkisp1/rkisp1-dev.c     | 11 +++++++++-
 3 files changed, 24 insertions(+), 11 deletions(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
index ca95f62822fa..1ee7639c42b7 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
@@ -648,11 +648,13 @@ static void rkisp1_dummy_buf_destroy(struct rkisp1_capture *cap)
 
 static void rkisp1_set_next_buf(struct rkisp1_capture *cap)
 {
+	u8 shift = rkisp1_has_feature(cap->rkisp1, DMA_34BIT) ? 2 : 0;
+
 	cap->buf.curr = cap->buf.next;
 	cap->buf.next = NULL;
 
 	if (!list_empty(&cap->buf.queue)) {
-		u32 *buff_addr;
+		dma_addr_t *buff_addr;
 
 		cap->buf.next = list_first_entry(&cap->buf.queue, struct rkisp1_buffer, queue);
 		list_del(&cap->buf.next->queue);
@@ -660,7 +662,7 @@ static void rkisp1_set_next_buf(struct rkisp1_capture *cap)
 		buff_addr = cap->buf.next->buff_addr;
 
 		rkisp1_write(cap->rkisp1, cap->config->mi.y_base_ad_init,
-			     buff_addr[RKISP1_PLANE_Y]);
+			     buff_addr[RKISP1_PLANE_Y] >> shift);
 		/*
 		 * In order to support grey format we capture
 		 * YUV422 planar format from the camera and
@@ -669,17 +671,17 @@ static void rkisp1_set_next_buf(struct rkisp1_capture *cap)
 		if (cap->pix.cfg->fourcc == V4L2_PIX_FMT_GREY) {
 			rkisp1_write(cap->rkisp1,
 				     cap->config->mi.cb_base_ad_init,
-				     cap->buf.dummy.dma_addr);
+				     cap->buf.dummy.dma_addr >> shift);
 			rkisp1_write(cap->rkisp1,
 				     cap->config->mi.cr_base_ad_init,
-				     cap->buf.dummy.dma_addr);
+				     cap->buf.dummy.dma_addr >> shift);
 		} else {
 			rkisp1_write(cap->rkisp1,
 				     cap->config->mi.cb_base_ad_init,
-				     buff_addr[RKISP1_PLANE_CB]);
+				     buff_addr[RKISP1_PLANE_CB] >> shift);
 			rkisp1_write(cap->rkisp1,
 				     cap->config->mi.cr_base_ad_init,
-				     buff_addr[RKISP1_PLANE_CR]);
+				     buff_addr[RKISP1_PLANE_CR] >> shift);
 		}
 	} else {
 		/*
@@ -687,11 +689,11 @@ static void rkisp1_set_next_buf(struct rkisp1_capture *cap)
 		 * throw data if there is no available buffer.
 		 */
 		rkisp1_write(cap->rkisp1, cap->config->mi.y_base_ad_init,
-			     cap->buf.dummy.dma_addr);
+			     cap->buf.dummy.dma_addr >> shift);
 		rkisp1_write(cap->rkisp1, cap->config->mi.cb_base_ad_init,
-			     cap->buf.dummy.dma_addr);
+			     cap->buf.dummy.dma_addr >> shift);
 		rkisp1_write(cap->rkisp1, cap->config->mi.cr_base_ad_init,
-			     cap->buf.dummy.dma_addr);
+			     cap->buf.dummy.dma_addr >> shift);
 	}
 
 	/* Set plane offsets */
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
index 69940014d597..26573f6ae575 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
@@ -114,6 +114,7 @@ enum rkisp1_isp_pad {
  * @RKISP1_FEATURE_MAIN_STRIDE: The ISP supports configurable stride on the main path
  * @RKISP1_FEATURE_SELF_PATH: The ISP has a self path
  * @RKISP1_FEATURE_DUAL_CROP: The ISP has the dual crop block at the resizer input
+ * @RKISP1_FEATURE_DMA_34BIT: The ISP uses 34-bit DMA addresses
  *
  * The ISP features are stored in a bitmask in &rkisp1_info.features and allow
  * the driver to implement support for features present in some ISP versions
@@ -124,6 +125,7 @@ enum rkisp1_feature {
 	RKISP1_FEATURE_MAIN_STRIDE = BIT(1),
 	RKISP1_FEATURE_SELF_PATH = BIT(2),
 	RKISP1_FEATURE_DUAL_CROP = BIT(3),
+	RKISP1_FEATURE_DMA_34BIT = BIT(4),
 };
 
 #define rkisp1_has_feature(rkisp1, feature) \
@@ -239,7 +241,7 @@ struct rkisp1_vdev_node {
 struct rkisp1_buffer {
 	struct vb2_v4l2_buffer vb;
 	struct list_head queue;
-	u32 buff_addr[VIDEO_MAX_PLANES];
+	dma_addr_t buff_addr[VIDEO_MAX_PLANES];
 };
 
 /*
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index 01f811b9f9a5..fd99355d5fe0 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -549,7 +549,8 @@ static const struct rkisp1_info imx8mp_isp_info = {
 	.isrs = imx8mp_isp_isrs,
 	.isr_size = ARRAY_SIZE(imx8mp_isp_isrs),
 	.isp_ver = IMX8MP_V10,
-	.features = RKISP1_FEATURE_MAIN_STRIDE,
+	.features = RKISP1_FEATURE_MAIN_STRIDE
+		  | RKISP1_FEATURE_DMA_34BIT,
 };
 
 static const struct of_device_id rkisp1_of_match[] = {
@@ -575,6 +576,7 @@ static int rkisp1_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct rkisp1_device *rkisp1;
 	struct v4l2_device *v4l2_dev;
+	unsigned long long dma_mask;
 	unsigned int i;
 	int ret, irq;
 	u32 cif_id;
@@ -589,6 +591,13 @@ static int rkisp1_probe(struct platform_device *pdev)
 	dev_set_drvdata(dev, rkisp1);
 	rkisp1->dev = dev;
 
+	dma_mask = rkisp1_has_feature(rkisp1, DMA_34BIT) ? DMA_BIT_MASK(34) :
+							   DMA_BIT_MASK(32);
+
+	ret = dma_set_mask_and_coherent(dev, dma_mask);
+	if (ret)
+		return ret;
+
 	mutex_init(&rkisp1->stream_lock);
 
 	rkisp1->base_addr = devm_platform_ioremap_resource(pdev, 0);
-- 
2.39.2

Re: [PATCH v5 08/10] media: rkisp1: Shift DMA buffer addresses on i.MX8MP

[Tomi Valkeinen]

On 06/01/2024 18:02, Paul Elder wrote:
> On the ISP that is integrated in the i.MX8MP, DMA addresses have been
> extended to 34 bits, with the 32 MSBs stored in the DMA address
> registers and the 2 LSBs set to 0. Shift the buffer addresses right by 2
> on that platform.
> 
> While at it, fix an issue where if the system allocated CMA memory
> happens to be located higher than 32-bits, the driver will fail to
> allocate CMA memory and falls back to kmalloc(), which will fail for
> larger allocations (over MAX_ORDER, which often mean 4MB).
> 
> Fix this by setting the dma mask to 34 bits when allowed, and fixing the
> use dma_addr_t when storing dma addresses instead of u32.

I think the desc could be rewritten a bit for clarity. "While at it" 
sounds like doing some secondary changes too, but it's all required. And 
it's not really "fixing", as this is adding a new feature.

To support i.MX8MP's 34-bit addresses, we need to:

- shift the addresses when writing to registers
- set the dma mask
- use dma_addr_t instead of u32 when storing the addresses

Can you rewrite the desc to describe the above?

For the change itself:

Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

  Tomi

> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
> Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
> Tested-by: Adam Ford <aford173@gmail.com>
> ---
> Changes since v4:
> 
> - Squash in fix from Tomi:
>    - https://gitlab.com/ideasonboard/nxp/linux/-/commit/d6477fe673b1c0d05d12ae21d8db9a03b07e7fea
> 
> Changes since v2:
> 
> - Document the RKISP1_FEATURE_DMA_34BIT bit
> - Use the rkisp1_has_feature() macro
> ---
>   .../platform/rockchip/rkisp1/rkisp1-capture.c | 20 ++++++++++---------
>   .../platform/rockchip/rkisp1/rkisp1-common.h  |  4 +++-
>   .../platform/rockchip/rkisp1/rkisp1-dev.c     | 11 +++++++++-
>   3 files changed, 24 insertions(+), 11 deletions(-)

Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

  Tomi

> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
> index ca95f62822fa..1ee7639c42b7 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
> @@ -648,11 +648,13 @@ static void rkisp1_dummy_buf_destroy(struct rkisp1_capture *cap)
>   
>   static void rkisp1_set_next_buf(struct rkisp1_capture *cap)
>   {
> +	u8 shift = rkisp1_has_feature(cap->rkisp1, DMA_34BIT) ? 2 : 0;
> +
>   	cap->buf.curr = cap->buf.next;
>   	cap->buf.next = NULL;
>   
>   	if (!list_empty(&cap->buf.queue)) {
> -		u32 *buff_addr;
> +		dma_addr_t *buff_addr;
>   
>   		cap->buf.next = list_first_entry(&cap->buf.queue, struct rkisp1_buffer, queue);
>   		list_del(&cap->buf.next->queue);
> @@ -660,7 +662,7 @@ static void rkisp1_set_next_buf(struct rkisp1_capture *cap)
>   		buff_addr = cap->buf.next->buff_addr;
>   
>   		rkisp1_write(cap->rkisp1, cap->config->mi.y_base_ad_init,
> -			     buff_addr[RKISP1_PLANE_Y]);
> +			     buff_addr[RKISP1_PLANE_Y] >> shift);
>   		/*
>   		 * In order to support grey format we capture
>   		 * YUV422 planar format from the camera and
> @@ -669,17 +671,17 @@ static void rkisp1_set_next_buf(struct rkisp1_capture *cap)
>   		if (cap->pix.cfg->fourcc == V4L2_PIX_FMT_GREY) {
>   			rkisp1_write(cap->rkisp1,
>   				     cap->config->mi.cb_base_ad_init,
> -				     cap->buf.dummy.dma_addr);
> +				     cap->buf.dummy.dma_addr >> shift);
>   			rkisp1_write(cap->rkisp1,
>   				     cap->config->mi.cr_base_ad_init,
> -				     cap->buf.dummy.dma_addr);
> +				     cap->buf.dummy.dma_addr >> shift);
>   		} else {
>   			rkisp1_write(cap->rkisp1,
>   				     cap->config->mi.cb_base_ad_init,
> -				     buff_addr[RKISP1_PLANE_CB]);
> +				     buff_addr[RKISP1_PLANE_CB] >> shift);
>   			rkisp1_write(cap->rkisp1,
>   				     cap->config->mi.cr_base_ad_init,
> -				     buff_addr[RKISP1_PLANE_CR]);
> +				     buff_addr[RKISP1_PLANE_CR] >> shift);
>   		}
>   	} else {
>   		/*
> @@ -687,11 +689,11 @@ static void rkisp1_set_next_buf(struct rkisp1_capture *cap)
>   		 * throw data if there is no available buffer.
>   		 */
>   		rkisp1_write(cap->rkisp1, cap->config->mi.y_base_ad_init,
> -			     cap->buf.dummy.dma_addr);
> +			     cap->buf.dummy.dma_addr >> shift);
>   		rkisp1_write(cap->rkisp1, cap->config->mi.cb_base_ad_init,
> -			     cap->buf.dummy.dma_addr);
> +			     cap->buf.dummy.dma_addr >> shift);
>   		rkisp1_write(cap->rkisp1, cap->config->mi.cr_base_ad_init,
> -			     cap->buf.dummy.dma_addr);
> +			     cap->buf.dummy.dma_addr >> shift);
>   	}
>   
>   	/* Set plane offsets */
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> index 69940014d597..26573f6ae575 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> @@ -114,6 +114,7 @@ enum rkisp1_isp_pad {
>    * @RKISP1_FEATURE_MAIN_STRIDE: The ISP supports configurable stride on the main path
>    * @RKISP1_FEATURE_SELF_PATH: The ISP has a self path
>    * @RKISP1_FEATURE_DUAL_CROP: The ISP has the dual crop block at the resizer input
> + * @RKISP1_FEATURE_DMA_34BIT: The ISP uses 34-bit DMA addresses
>    *
>    * The ISP features are stored in a bitmask in &rkisp1_info.features and allow
>    * the driver to implement support for features present in some ISP versions
> @@ -124,6 +125,7 @@ enum rkisp1_feature {
>   	RKISP1_FEATURE_MAIN_STRIDE = BIT(1),
>   	RKISP1_FEATURE_SELF_PATH = BIT(2),
>   	RKISP1_FEATURE_DUAL_CROP = BIT(3),
> +	RKISP1_FEATURE_DMA_34BIT = BIT(4),
>   };
>   
>   #define rkisp1_has_feature(rkisp1, feature) \
> @@ -239,7 +241,7 @@ struct rkisp1_vdev_node {
>   struct rkisp1_buffer {
>   	struct vb2_v4l2_buffer vb;
>   	struct list_head queue;
> -	u32 buff_addr[VIDEO_MAX_PLANES];
> +	dma_addr_t buff_addr[VIDEO_MAX_PLANES];
>   };
>   
>   /*
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> index 01f811b9f9a5..fd99355d5fe0 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
> @@ -549,7 +549,8 @@ static const struct rkisp1_info imx8mp_isp_info = {
>   	.isrs = imx8mp_isp_isrs,
>   	.isr_size = ARRAY_SIZE(imx8mp_isp_isrs),
>   	.isp_ver = IMX8MP_V10,
> -	.features = RKISP1_FEATURE_MAIN_STRIDE,
> +	.features = RKISP1_FEATURE_MAIN_STRIDE
> +		  | RKISP1_FEATURE_DMA_34BIT,
>   };
>   
>   static const struct of_device_id rkisp1_of_match[] = {
> @@ -575,6 +576,7 @@ static int rkisp1_probe(struct platform_device *pdev)
>   	struct device *dev = &pdev->dev;
>   	struct rkisp1_device *rkisp1;
>   	struct v4l2_device *v4l2_dev;
> +	unsigned long long dma_mask;
>   	unsigned int i;
>   	int ret, irq;
>   	u32 cif_id;
> @@ -589,6 +591,13 @@ static int rkisp1_probe(struct platform_device *pdev)
>   	dev_set_drvdata(dev, rkisp1);
>   	rkisp1->dev = dev;
>   
> +	dma_mask = rkisp1_has_feature(rkisp1, DMA_34BIT) ? DMA_BIT_MASK(34) :
> +							   DMA_BIT_MASK(32);
> +
> +	ret = dma_set_mask_and_coherent(dev, dma_mask);
> +	if (ret)
> +		return ret;
> +
>   	mutex_init(&rkisp1->stream_lock);
>   
>   	rkisp1->base_addr = devm_platform_ioremap_resource(pdev, 0);

Re: [PATCH v5 08/10] media: rkisp1: Shift DMA buffer addresses on i.MX8MP

[Tomi Valkeinen]

On 08/01/2024 13:37, Tomi Valkeinen wrote:
> On 06/01/2024 18:02, Paul Elder wrote:
>> On the ISP that is integrated in the i.MX8MP, DMA addresses have been
>> extended to 34 bits, with the 32 MSBs stored in the DMA address
>> registers and the 2 LSBs set to 0. Shift the buffer addresses right by 2
>> on that platform.
>>
>> While at it, fix an issue where if the system allocated CMA memory
>> happens to be located higher than 32-bits, the driver will fail to
>> allocate CMA memory and falls back to kmalloc(), which will fail for
>> larger allocations (over MAX_ORDER, which often mean 4MB).
>>
>> Fix this by setting the dma mask to 34 bits when allowed, and fixing the
>> use dma_addr_t when storing dma addresses instead of u32.
> 
> I think the desc could be rewritten a bit for clarity. "While at it" 
> sounds like doing some secondary changes too, but it's all required. And 
> it's not really "fixing", as this is adding a new feature.
> 
> To support i.MX8MP's 34-bit addresses, we need to:
> 
> - shift the addresses when writing to registers
> - set the dma mask
> - use dma_addr_t instead of u32 when storing the addresses
> 
> Can you rewrite the desc to describe the above?

Oh, and the patch title is not quite right anymore. I think this is more 
about supporting i.MX8MP's 34-bit DMA.

  Tomi

> For the change itself:
> 
> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
> 
>   Tomi
> 
>> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
>> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
>> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
>> Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
>> Tested-by: Adam Ford <aford173@gmail.com>
>> ---
>> Changes since v4:
>>
>> - Squash in fix from Tomi:
>>    - 
>> https://gitlab.com/ideasonboard/nxp/linux/-/commit/d6477fe673b1c0d05d12ae21d8db9a03b07e7fea
>>
>> Changes since v2:
>>
>> - Document the RKISP1_FEATURE_DMA_34BIT bit
>> - Use the rkisp1_has_feature() macro
>> ---
>>   .../platform/rockchip/rkisp1/rkisp1-capture.c | 20 ++++++++++---------
>>   .../platform/rockchip/rkisp1/rkisp1-common.h  |  4 +++-
>>   .../platform/rockchip/rkisp1/rkisp1-dev.c     | 11 +++++++++-
>>   3 files changed, 24 insertions(+), 11 deletions(-)
> 
> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
> 
>   Tomi
> 
>> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c 
>> b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
>> index ca95f62822fa..1ee7639c42b7 100644
>> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
>> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
>> @@ -648,11 +648,13 @@ static void rkisp1_dummy_buf_destroy(struct 
>> rkisp1_capture *cap)
>>   static void rkisp1_set_next_buf(struct rkisp1_capture *cap)
>>   {
>> +    u8 shift = rkisp1_has_feature(cap->rkisp1, DMA_34BIT) ? 2 : 0;
>> +
>>       cap->buf.curr = cap->buf.next;
>>       cap->buf.next = NULL;
>>       if (!list_empty(&cap->buf.queue)) {
>> -        u32 *buff_addr;
>> +        dma_addr_t *buff_addr;
>>           cap->buf.next = list_first_entry(&cap->buf.queue, struct 
>> rkisp1_buffer, queue);
>>           list_del(&cap->buf.next->queue);
>> @@ -660,7 +662,7 @@ static void rkisp1_set_next_buf(struct 
>> rkisp1_capture *cap)
>>           buff_addr = cap->buf.next->buff_addr;
>>           rkisp1_write(cap->rkisp1, cap->config->mi.y_base_ad_init,
>> -                 buff_addr[RKISP1_PLANE_Y]);
>> +                 buff_addr[RKISP1_PLANE_Y] >> shift);
>>           /*
>>            * In order to support grey format we capture
>>            * YUV422 planar format from the camera and
>> @@ -669,17 +671,17 @@ static void rkisp1_set_next_buf(struct 
>> rkisp1_capture *cap)
>>           if (cap->pix.cfg->fourcc == V4L2_PIX_FMT_GREY) {
>>               rkisp1_write(cap->rkisp1,
>>                        cap->config->mi.cb_base_ad_init,
>> -                     cap->buf.dummy.dma_addr);
>> +                     cap->buf.dummy.dma_addr >> shift);
>>               rkisp1_write(cap->rkisp1,
>>                        cap->config->mi.cr_base_ad_init,
>> -                     cap->buf.dummy.dma_addr);
>> +                     cap->buf.dummy.dma_addr >> shift);
>>           } else {
>>               rkisp1_write(cap->rkisp1,
>>                        cap->config->mi.cb_base_ad_init,
>> -                     buff_addr[RKISP1_PLANE_CB]);
>> +                     buff_addr[RKISP1_PLANE_CB] >> shift);
>>               rkisp1_write(cap->rkisp1,
>>                        cap->config->mi.cr_base_ad_init,
>> -                     buff_addr[RKISP1_PLANE_CR]);
>> +                     buff_addr[RKISP1_PLANE_CR] >> shift);
>>           }
>>       } else {
>>           /*
>> @@ -687,11 +689,11 @@ static void rkisp1_set_next_buf(struct 
>> rkisp1_capture *cap)
>>            * throw data if there is no available buffer.
>>            */
>>           rkisp1_write(cap->rkisp1, cap->config->mi.y_base_ad_init,
>> -                 cap->buf.dummy.dma_addr);
>> +                 cap->buf.dummy.dma_addr >> shift);
>>           rkisp1_write(cap->rkisp1, cap->config->mi.cb_base_ad_init,
>> -                 cap->buf.dummy.dma_addr);
>> +                 cap->buf.dummy.dma_addr >> shift);
>>           rkisp1_write(cap->rkisp1, cap->config->mi.cr_base_ad_init,
>> -                 cap->buf.dummy.dma_addr);
>> +                 cap->buf.dummy.dma_addr >> shift);
>>       }
>>       /* Set plane offsets */
>> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h 
>> b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
>> index 69940014d597..26573f6ae575 100644
>> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
>> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
>> @@ -114,6 +114,7 @@ enum rkisp1_isp_pad {
>>    * @RKISP1_FEATURE_MAIN_STRIDE: The ISP supports configurable stride 
>> on the main path
>>    * @RKISP1_FEATURE_SELF_PATH: The ISP has a self path
>>    * @RKISP1_FEATURE_DUAL_CROP: The ISP has the dual crop block at the 
>> resizer input
>> + * @RKISP1_FEATURE_DMA_34BIT: The ISP uses 34-bit DMA addresses
>>    *
>>    * The ISP features are stored in a bitmask in &rkisp1_info.features 
>> and allow
>>    * the driver to implement support for features present in some ISP 
>> versions
>> @@ -124,6 +125,7 @@ enum rkisp1_feature {
>>       RKISP1_FEATURE_MAIN_STRIDE = BIT(1),
>>       RKISP1_FEATURE_SELF_PATH = BIT(2),
>>       RKISP1_FEATURE_DUAL_CROP = BIT(3),
>> +    RKISP1_FEATURE_DMA_34BIT = BIT(4),
>>   };
>>   #define rkisp1_has_feature(rkisp1, feature) \
>> @@ -239,7 +241,7 @@ struct rkisp1_vdev_node {
>>   struct rkisp1_buffer {
>>       struct vb2_v4l2_buffer vb;
>>       struct list_head queue;
>> -    u32 buff_addr[VIDEO_MAX_PLANES];
>> +    dma_addr_t buff_addr[VIDEO_MAX_PLANES];
>>   };
>>   /*
>> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c 
>> b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
>> index 01f811b9f9a5..fd99355d5fe0 100644
>> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
>> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
>> @@ -549,7 +549,8 @@ static const struct rkisp1_info imx8mp_isp_info = {
>>       .isrs = imx8mp_isp_isrs,
>>       .isr_size = ARRAY_SIZE(imx8mp_isp_isrs),
>>       .isp_ver = IMX8MP_V10,
>> -    .features = RKISP1_FEATURE_MAIN_STRIDE,
>> +    .features = RKISP1_FEATURE_MAIN_STRIDE
>> +          | RKISP1_FEATURE_DMA_34BIT,
>>   };
>>   static const struct of_device_id rkisp1_of_match[] = {
>> @@ -575,6 +576,7 @@ static int rkisp1_probe(struct platform_device *pdev)
>>       struct device *dev = &pdev->dev;
>>       struct rkisp1_device *rkisp1;
>>       struct v4l2_device *v4l2_dev;
>> +    unsigned long long dma_mask;
>>       unsigned int i;
>>       int ret, irq;
>>       u32 cif_id;
>> @@ -589,6 +591,13 @@ static int rkisp1_probe(struct platform_device 
>> *pdev)
>>       dev_set_drvdata(dev, rkisp1);
>>       rkisp1->dev = dev;
>> +    dma_mask = rkisp1_has_feature(rkisp1, DMA_34BIT) ? 
>> DMA_BIT_MASK(34) :
>> +                               DMA_BIT_MASK(32);
>> +
>> +    ret = dma_set_mask_and_coherent(dev, dma_mask);
>> +    if (ret)
>> +        return ret;
>> +
>>       mutex_init(&rkisp1->stream_lock);
>>       rkisp1->base_addr = devm_platform_ioremap_resource(pdev, 0);
> 

[PATCH v5 09/10] media: rkisp1: Add YC swap capability

[Paul Elder]

The ISP version in the i.MX8MP has an MI_OUTPUT_ALIGN_FORMAT register
that the rk3399 does not have. This register allows swapping bytes,
which can be used to implement UYVY from YUYV.

Add a feature flag to signify the presence of this feature, and add it
to the i.MX8MP match data. Also add it as a flag to the format info in
the list of supported formats by the capture v4l2 devices, and update
enum_fmt and s_fmt to take it into account.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: Adam Ford <aford173@gmail.com>
---
 .../platform/rockchip/rkisp1/rkisp1-capture.c | 26 ++++++++++++++-----
 .../platform/rockchip/rkisp1/rkisp1-common.h  |  2 ++
 .../platform/rockchip/rkisp1/rkisp1-dev.c     |  3 ++-
 3 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
index 1ee7639c42b7..bf63f78dc48c 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
@@ -47,13 +47,15 @@ enum rkisp1_plane {
  * @fourcc: pixel format
  * @fmt_type: helper filed for pixel format
  * @uv_swap: if cb cr swapped, for yuv
+ * @yc_swap: if y and cb/cr swapped, for yuv
  * @write_format: defines how YCbCr self picture data is written to memory
  * @output_format: defines sp output format
  * @mbus: the mbus code on the src resizer pad that matches the pixel format
  */
 struct rkisp1_capture_fmt_cfg {
 	u32 fourcc;
-	u8 uv_swap;
+	u32 uv_swap : 1;
+	u32 yc_swap : 1;
 	u32 write_format;
 	u32 output_format;
 	u32 mbus;
@@ -1162,10 +1164,14 @@ rkisp1_fill_pixfmt(const struct rkisp1_capture *cap,
 static const struct rkisp1_capture_fmt_cfg *
 rkisp1_find_fmt_cfg(const struct rkisp1_capture *cap, const u32 pixelfmt)
 {
+	bool yc_swap_support = rkisp1_has_feature(cap->rkisp1, MI_OUTPUT_ALIGN);
 	unsigned int i;
 
 	for (i = 0; i < cap->config->fmt_size; i++) {
-		if (cap->config->fmts[i].fourcc == pixelfmt)
+		const struct rkisp1_capture_fmt_cfg *fmt = &cap->config->fmts[i];
+
+		if (fmt->fourcc == pixelfmt &&
+		    (!fmt->yc_swap || yc_swap_support))
 			return &cap->config->fmts[i];
 	}
 	return NULL;
@@ -1234,23 +1240,29 @@ static int rkisp1_enum_fmt_vid_cap_mplane(struct file *file, void *priv,
 {
 	struct rkisp1_capture *cap = video_drvdata(file);
 	const struct rkisp1_capture_fmt_cfg *fmt = NULL;
+	bool yc_swap_support = rkisp1_has_feature(cap->rkisp1, MI_OUTPUT_ALIGN);
 	unsigned int i, n = 0;
 
-	if (!f->mbus_code) {
-		if (f->index >= cap->config->fmt_size)
-			return -EINVAL;
+	if (f->index >= cap->config->fmt_size)
+		return -EINVAL;
 
+	if (!f->mbus_code && yc_swap_support) {
 		fmt = &cap->config->fmts[f->index];
 		f->pixelformat = fmt->fourcc;
 		return 0;
 	}
 
 	for (i = 0; i < cap->config->fmt_size; i++) {
-		if (cap->config->fmts[i].mbus != f->mbus_code)
+		fmt = &cap->config->fmts[i];
+
+		if (f->mbus_code && fmt->mbus != f->mbus_code)
+			continue;
+
+		if (!yc_swap_support && fmt->yc_swap)
 			continue;
 
 		if (n++ == f->index) {
-			f->pixelformat = cap->config->fmts[i].fourcc;
+			f->pixelformat = fmt->fourcc;
 			return 0;
 		}
 	}
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
index 26573f6ae575..8e2a63ab2cdd 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
@@ -115,6 +115,7 @@ enum rkisp1_isp_pad {
  * @RKISP1_FEATURE_SELF_PATH: The ISP has a self path
  * @RKISP1_FEATURE_DUAL_CROP: The ISP has the dual crop block at the resizer input
  * @RKISP1_FEATURE_DMA_34BIT: The ISP uses 34-bit DMA addresses
+ * @RKISP1_FEATURE_MI_OUTPUT_ALIGN: The ISP has the MI_OUTPUT_ALIGN_FORMAT register
  *
  * The ISP features are stored in a bitmask in &rkisp1_info.features and allow
  * the driver to implement support for features present in some ISP versions
@@ -126,6 +127,7 @@ enum rkisp1_feature {
 	RKISP1_FEATURE_SELF_PATH = BIT(2),
 	RKISP1_FEATURE_DUAL_CROP = BIT(3),
 	RKISP1_FEATURE_DMA_34BIT = BIT(4),
+	RKISP1_FEATURE_MI_OUTPUT_ALIGN = BIT(5),
 };
 
 #define rkisp1_has_feature(rkisp1, feature) \
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index fd99355d5fe0..b98909b9473a 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -550,7 +550,8 @@ static const struct rkisp1_info imx8mp_isp_info = {
 	.isr_size = ARRAY_SIZE(imx8mp_isp_isrs),
 	.isp_ver = IMX8MP_V10,
 	.features = RKISP1_FEATURE_MAIN_STRIDE
-		  | RKISP1_FEATURE_DMA_34BIT,
+		  | RKISP1_FEATURE_DMA_34BIT
+		  | RKISP1_FEATURE_MI_OUTPUT_ALIGN,
 };
 
 static const struct of_device_id rkisp1_of_match[] = {
-- 
2.39.2

[PATCH v5 10/10] media: rkisp1: Add UYVY as an output format

[Paul Elder]

Add support for UYVY as an output format. The uv_swap bit in the
MI_XTD_FORMAT_CTRL register that is used for the NV formats does not
work for packed YUV formats. Thus, UYVY support is implemented via
byte-swapping. This method clearly does not work for implementing
support for YVYU and VYUY.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: Adam Ford <aford173@gmail.com>
---
 .../platform/rockchip/rkisp1/rkisp1-capture.c | 41 +++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
index bf63f78dc48c..813d4274f118 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c
@@ -97,6 +97,12 @@ static const struct rkisp1_capture_fmt_cfg rkisp1_mp_fmts[] = {
 		.uv_swap = 0,
 		.write_format = RKISP1_MI_CTRL_MP_WRITE_YUVINT,
 		.mbus = MEDIA_BUS_FMT_YUYV8_2X8,
+	}, {
+		.fourcc = V4L2_PIX_FMT_UYVY,
+		.uv_swap = 0,
+		.yc_swap = 1,
+		.write_format = RKISP1_MI_CTRL_MP_WRITE_YUVINT,
+		.mbus = MEDIA_BUS_FMT_YUYV8_2X8,
 	}, {
 		.fourcc = V4L2_PIX_FMT_YUV422P,
 		.uv_swap = 0,
@@ -231,6 +237,13 @@ static const struct rkisp1_capture_fmt_cfg rkisp1_sp_fmts[] = {
 		.write_format = RKISP1_MI_CTRL_SP_WRITE_INT,
 		.output_format = RKISP1_MI_CTRL_SP_OUTPUT_YUV422,
 		.mbus = MEDIA_BUS_FMT_YUYV8_2X8,
+	}, {
+		.fourcc = V4L2_PIX_FMT_UYVY,
+		.uv_swap = 0,
+		.yc_swap = 1,
+		.write_format = RKISP1_MI_CTRL_SP_WRITE_INT,
+		.output_format = RKISP1_MI_CTRL_SP_OUTPUT_YUV422,
+		.mbus = MEDIA_BUS_FMT_YUYV8_2X8,
 	}, {
 		.fourcc = V4L2_PIX_FMT_YUV422P,
 		.uv_swap = 0,
@@ -464,6 +477,20 @@ static void rkisp1_mp_config(struct rkisp1_capture *cap)
 		rkisp1_write(rkisp1, RKISP1_CIF_MI_XTD_FORMAT_CTRL, reg);
 	}
 
+	/*
+	 * U/V swapping with the MI_XTD_FORMAT_CTRL register only works for
+	 * NV12/NV21 and NV16/NV61, so instead use byte swap to support UYVY.
+	 * YVYU and VYUY cannot be supported with this method.
+	 */
+	if (rkisp1->info->features & RKISP1_FEATURE_MI_OUTPUT_ALIGN) {
+		reg = rkisp1_read(rkisp1, RKISP1_CIF_MI_OUTPUT_ALIGN_FORMAT);
+		if (cap->pix.cfg->yc_swap)
+			reg |= RKISP1_CIF_OUTPUT_ALIGN_FORMAT_MP_BYTE_SWAP_BYTES;
+		else
+			reg &= ~RKISP1_CIF_OUTPUT_ALIGN_FORMAT_MP_BYTE_SWAP_BYTES;
+		rkisp1_write(rkisp1, RKISP1_CIF_MI_OUTPUT_ALIGN_FORMAT, reg);
+	}
+
 	rkisp1_mi_config_ctrl(cap);
 
 	reg = rkisp1_read(rkisp1, RKISP1_CIF_MI_CTRL);
@@ -507,6 +534,20 @@ static void rkisp1_sp_config(struct rkisp1_capture *cap)
 		rkisp1_write(rkisp1, RKISP1_CIF_MI_XTD_FORMAT_CTRL, reg);
 	}
 
+	/*
+	 * U/V swapping with the MI_XTD_FORMAT_CTRL register only works for
+	 * NV12/NV21 and NV16/NV61, so instead use byte swap to support UYVY.
+	 * YVYU and VYUY cannot be supported with this method.
+	 */
+	if (rkisp1->info->features & RKISP1_FEATURE_MI_OUTPUT_ALIGN) {
+		reg = rkisp1_read(rkisp1, RKISP1_CIF_MI_OUTPUT_ALIGN_FORMAT);
+		if (cap->pix.cfg->yc_swap)
+			reg |= RKISP1_CIF_OUTPUT_ALIGN_FORMAT_SP_BYTE_SWAP_BYTES;
+		else
+			reg &= ~RKISP1_CIF_OUTPUT_ALIGN_FORMAT_SP_BYTE_SWAP_BYTES;
+		rkisp1_write(rkisp1, RKISP1_CIF_MI_OUTPUT_ALIGN_FORMAT, reg);
+	}
+
 	rkisp1_mi_config_ctrl(cap);
 
 	mi_ctrl = rkisp1_read(rkisp1, RKISP1_CIF_MI_CTRL);
-- 
2.39.2

Re: [PATCH v5 00/10] media: rkisp1: Add support for i.MX8MP

[Tomi Valkeinen]

Hi Paul,

On 06/01/2024 18:02, Paul Elder wrote:
> This patch series depends on the series "media: rkisp1: Fix shared
> interrupt handling" [1]
> 
> This series extends the rkisp1 driver to support the ISP found in the
> NXP i.MX8MP SoC.
> 
> The ISP IP cores in the Rockchip RK3399 (known as the "Rockchip ISP1")
> and in the NXP i.MX8MP have the same origin, and have slightly diverged
> over time as they are now independently developed (afaik) by Rockchip
> and VeriSilicon. The latter is marketed under the name "ISP8000Nano",
> and is close enough to the RK3399 ISP that it can easily be supported by
> the same driver.
> 
> The last two patches add support for UYVY output format, which can be
> implemented on the ISP version in the i.MX8MP but not in the one in the
> RK3399.
> 
> This version of the series specifically has been tested on a Polyhex
> Debix model A with an imx219 (Raspberry Pi cam v2).
> 
> In v5 the patch "media: rkisp1: Fix RSZ_CTRL bits for i.MX8MP" has been
> dropped.
> 
> [1] https://lore.kernel.org/all/20231218-rkisp-shirq-fix-v1-0-173007628248@ideasonboard.com/

I have tested this with Debix SOM A board, and works fine for me, so:

Tested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>

However, I do see v4l2-compliance complaints. I can't say if those 
already exist before this series, or did this series cause some of them.

  Tomi

> Laurent Pinchart (2):
>    media: rkisp1: Add and use rkisp1_has_feature() macro
>    media: rkisp1: Configure gasket on i.MX8MP
> 
> Paul Elder (8):
>    media: rkisp1: Support setting memory stride for main path
>    media: rkisp1: Support devices lacking self path
>    media: rkisp1: Support devices lacking dual crop
>    dt-bindings: media: rkisp1: Add i.MX8MP ISP to compatible
>    media: rkisp1: Add match data for i.MX8MP ISP
>    media: rkisp1: Shift DMA buffer addresses on i.MX8MP
>    media: rkisp1: Add YC swap capability
>    media: rkisp1: Add UYVY as an output format
> 
>   .../bindings/media/rockchip-isp1.yaml         |  37 ++++-
>   .../platform/rockchip/rkisp1/rkisp1-capture.c | 130 ++++++++++++-----
>   .../platform/rockchip/rkisp1/rkisp1-common.h  |  37 ++++-
>   .../platform/rockchip/rkisp1/rkisp1-dev.c     |  74 ++++++++--
>   .../platform/rockchip/rkisp1/rkisp1-isp.c     | 131 +++++++++++++++++-
>   .../platform/rockchip/rkisp1/rkisp1-regs.h    |  27 ++++
>   .../platform/rockchip/rkisp1/rkisp1-resizer.c |  12 +-
>   include/uapi/linux/rkisp1-config.h            |   2 +
>   8 files changed, 392 insertions(+), 58 deletions(-)
>