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Commit 451a7b78 authored by Philipp Zabel's avatar Philipp Zabel Committed by Mauro Carvalho Chehab
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media: imx: lift CSI and PRP ENC/VF width alignment restriction 



The CSI, PRP ENC, and PRP VF subdevices shouldn't have to care about
IDMAC line start address alignment. With compose rectangle support in
the capture driver, they don't have to anymore.
If the direct CSI -> IC path is enabled, the CSI output width must
still be aligned to 8 pixels (IC burst length).

Signed-off-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: default avatarSteve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent 20997568

drivers/staging/media/imx/imx-ic-prpencvf.c

+1 −1
Original line number Diff line number Diff line
@@ -48,7 +48,7 @@ 


#define MAX_W_SRC  1024

#define MAX_H_SRC  1024

#define W_ALIGN_SRC   4 /* multiple of 16 pixels */

#define W_ALIGN_SRC   1 /* multiple of 2 pixels */

#define H_ALIGN_SRC   1 /* multiple of 2 lines */



#define S_ALIGN       1 /* multiple of 2 */

drivers/staging/media/imx/imx-media-csi.c

+9 −2
Original line number Diff line number Diff line
@@ -41,7 +41,7 @@ 
#define MIN_H       144

#define MAX_W      4096

#define MAX_H      4096

#define W_ALIGN    4 /* multiple of 16 pixels */

#define W_ALIGN    1 /* multiple of 2 pixels */

#define H_ALIGN    1 /* multiple of 2 lines */

#define S_ALIGN    1 /* multiple of 2 */
@@ -1029,6 +1029,8 @@ static int csi_link_setup(struct media_entity *entity, 
		v4l2_ctrl_handler_free(&priv->ctrl_hdlr);

		v4l2_ctrl_handler_init(&priv->ctrl_hdlr, 0);

		priv->sink = NULL;

		/* do not apply IC burst alignment in csi_try_crop */

		priv->active_output_pad = CSI_SRC_PAD_IDMAC;

		goto out;

	}
@@ -1172,7 +1174,10 @@ static void csi_try_crop(struct csi_priv *priv, 
		crop->left = infmt->width - crop->width;

	/* adjust crop left/width to h/w alignment restrictions */

	crop->left &= ~0x3;

	crop->width &= ~0x7;

	if (priv->active_output_pad == CSI_SRC_PAD_DIRECT)

		crop->width &= ~0x7; /* multiple of 8 pixels (IC burst) */

	else

		crop->width &= ~0x1; /* multiple of 2 pixels */



	in_height = infmt->height;

	if (infmt->field == V4L2_FIELD_ALTERNATE)
@@ -1937,6 +1942,8 @@ static int imx_csi_probe(struct platform_device *pdev) 
	priv->csi_id = pdata->csi;

	priv->smfc_id = (priv->csi_id == 0) ? 0 : 2;



	priv->active_output_pad = CSI_SRC_PAD_IDMAC;



	timer_setup(&priv->eof_timeout_timer, csi_idmac_eof_timeout, 0);

	spin_lock_init(&priv->irqlock);

drivers/staging/media/imx/imx-media-utils.c

+12 −3
Original line number Diff line number Diff line
@@ -580,6 +580,7 @@ int imx_media_mbus_fmt_to_pix_fmt(struct v4l2_pix_format *pix, 
				  struct v4l2_mbus_framefmt *mbus,

				  const struct imx_media_pixfmt *cc)

{

	u32 width;

	u32 stride;



	if (!cc) {
@@ -602,9 +603,16 @@ int imx_media_mbus_fmt_to_pix_fmt(struct v4l2_pix_format *pix, 
		cc = imx_media_find_mbus_format(code, CS_SEL_YUV, false);

	}



	stride = cc->planar ? mbus->width : (mbus->width * cc->bpp) >> 3;

	/* Round up width for minimum burst size */

	width = round_up(mbus->width, 8);



	pix->width = mbus->width;

	/* Round up stride for IDMAC line start address alignment */

	if (cc->planar)

		stride = round_up(width, 16);

	else

		stride = round_up((width * cc->bpp) >> 3, 8);



	pix->width = width;

	pix->height = mbus->height;

	pix->pixelformat = cc->fourcc;

	pix->colorspace = mbus->colorspace;
@@ -613,7 +621,8 @@ int imx_media_mbus_fmt_to_pix_fmt(struct v4l2_pix_format *pix, 
	pix->quantization = mbus->quantization;

	pix->field = mbus->field;

	pix->bytesperline = stride;

	pix->sizeimage = (pix->width * pix->height * cc->bpp) >> 3;

	pix->sizeimage = cc->planar ? ((stride * pix->height * cc->bpp) >> 3) :

			 stride * pix->height;



	return 0;

}