6.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Laurent Pinchart laurent.pinchart+renesas@ideasonboard.com
[ Upstream commit b6e57605eff6224df4debf188eb7a02dedb7686f ]
The RWPF source pad media bus code can only be different from the sink pad code when enabling color space conversion, which can only convert between RGB and YUV. If the sink pad code is HSV, no conversion is possible. Fix the pad set format handler to reflect this hardware limitation.
Signed-off-by: Laurent Pinchart laurent.pinchart+renesas@ideasonboard.com Reviewed-by: Tomi Valkeinen tomi.valkeinen+renesas@ideasonboard.com Link: https://lore.kernel.org/r/20250429232904.26413-5-laurent.pinchart+renesas@id... Signed-off-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Signed-off-by: Hans Verkuil hverkuil@xs4all.nl Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/platform/renesas/vsp1/vsp1_rwpf.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/renesas/vsp1/vsp1_rwpf.c b/drivers/media/platform/renesas/vsp1/vsp1_rwpf.c index 9d38203e73d00..1b4bac7b7cfa1 100644 --- a/drivers/media/platform/renesas/vsp1/vsp1_rwpf.c +++ b/drivers/media/platform/renesas/vsp1/vsp1_rwpf.c @@ -76,11 +76,20 @@ static int vsp1_rwpf_set_format(struct v4l2_subdev *subdev, format = v4l2_subdev_state_get_format(state, fmt->pad);
if (fmt->pad == RWPF_PAD_SOURCE) { + const struct v4l2_mbus_framefmt *sink_format = + v4l2_subdev_state_get_format(state, RWPF_PAD_SINK); + /* * The RWPF performs format conversion but can't scale, only the - * format code can be changed on the source pad. + * format code can be changed on the source pad when converting + * between RGB and YUV. */ - format->code = fmt->format.code; + if (sink_format->code != MEDIA_BUS_FMT_AHSV8888_1X32 && + fmt->format.code != MEDIA_BUS_FMT_AHSV8888_1X32) + format->code = fmt->format.code; + else + format->code = sink_format->code; + fmt->format = *format; goto done; }