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X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Jan 2026 13:54:40.1861 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f98756f9-c36c-40e7-4948-08de58f49f6b X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.21.194];Helo=[flwvzet200.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: BN2PEPF000044AA.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY5PR10MB6070 Content-Type: text/plain; charset="utf-8" j721e-csi2rx driver has a limitation of frame width being a multiple word size. However, there is no such limitation imposed by the hardware [1]. Remove this limitation from the driver. Link: https://www.ti.com/lit/pdf/spruj16 Reviewed-by: Yemike Abhilash Chandra Reviewed-by: Tomi Valkeinen Signed-off-by: Rishikesh Donadkar --- .../platform/ti/j721e-csi2rx/j721e-csi2rx.c | 24 ++++--------------- 1 file changed, 4 insertions(+), 20 deletions(-) diff --git a/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c b/driver= s/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c index b75aa363d1bf2..710d05a053539 100644 --- a/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c +++ b/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c @@ -43,7 +43,6 @@ #define SHIM_PSI_CFG0_DST_TAG GENMASK(31, 16) =20 #define TI_CSI2RX_MAX_PIX_PER_CLK 4 -#define PSIL_WORD_SIZE_BYTES 16 /* * There are no hard limits on the width or height. The DMA engine can han= dle * all sizes. The max width and height are arbitrary numbers for this driv= er. @@ -250,19 +249,12 @@ static void ti_csi2rx_fill_fmt(const struct ti_csi2rx= _fmt *csi_fmt, struct v4l2_format *v4l2_fmt) { struct v4l2_pix_format *pix =3D &v4l2_fmt->fmt.pix; - unsigned int pixels_in_word; - - pixels_in_word =3D PSIL_WORD_SIZE_BYTES * 8 / csi_fmt->bpp; =20 /* Clamp width and height to sensible maximums (16K x 16K) */ pix->width =3D clamp_t(unsigned int, pix->width, - pixels_in_word, - MAX_WIDTH_BYTES * 8 / csi_fmt->bpp); + 1, MAX_WIDTH_BYTES * 8 / csi_fmt->bpp); pix->height =3D clamp_t(unsigned int, pix->height, 1, MAX_HEIGHT_LINES); =20 - /* Width should be a multiple of transfer word-size */ - pix->width =3D rounddown(pix->width, pixels_in_word); - v4l2_fmt->type =3D V4L2_BUF_TYPE_VIDEO_CAPTURE; pix->pixelformat =3D csi_fmt->fourcc; pix->bytesperline =3D pix->width * (csi_fmt->bpp / 8); @@ -360,23 +352,15 @@ static int ti_csi2rx_enum_framesizes(struct file *fil= e, void *fh, struct v4l2_frmsizeenum *fsize) { const struct ti_csi2rx_fmt *fmt; - unsigned int pixels_in_word; =20 fmt =3D find_format_by_fourcc(fsize->pixel_format); if (!fmt || fsize->index !=3D 0) return -EINVAL; =20 - /* - * Number of pixels in one PSI-L word. The transfer happens in multiples - * of PSI-L word sizes. - */ - pixels_in_word =3D PSIL_WORD_SIZE_BYTES * 8 / fmt->bpp; - fsize->type =3D V4L2_FRMSIZE_TYPE_STEPWISE; - fsize->stepwise.min_width =3D pixels_in_word; - fsize->stepwise.max_width =3D rounddown(MAX_WIDTH_BYTES * 8 / fmt->bpp, - pixels_in_word); - fsize->stepwise.step_width =3D pixels_in_word; + fsize->stepwise.min_width =3D 1; + fsize->stepwise.max_width =3D MAX_WIDTH_BYTES * 8 / fmt->bpp; + fsize->stepwise.step_width =3D 1; fsize->stepwise.min_height =3D 1; fsize->stepwise.max_height =3D MAX_HEIGHT_LINES; fsize->stepwise.step_height =3D 1; --=20 2.34.1