Hi Jacopo,
Thank you for this patch.
On Mon, 26 Feb 2024 at 13:26, Jacopo Mondi
<jacopo.mo...@ideasonboard.com> wrote:
>
> Add FourCC definitions for the 48-bit RGB/BGR formats to the
> DRM/KMS uapi.
>
> The format will be used by the Raspberry Pi PiSP Back End,
> supported by a V4L2 driver in kernel space and by libcamera in
> userspace, which uses the DRM FourCC identifiers.
>
> Signed-off-by: Jacopo Mondi <jacopo.mo...@ideasonboard.com>
All the fields look reasonable to me, so:
Reviewed-by: Naushir Patuck <na...@raspberrypi.com>
> ---
> drivers/gpu/drm/drm_fourcc.c | 8 ++++++++
> include/uapi/drm/drm_fourcc.h | 4 ++++
> 2 files changed, 12 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
> index 193cf8ed7912..908f20b96fd5 100644
> --- a/drivers/gpu/drm/drm_fourcc.c
> +++ b/drivers/gpu/drm/drm_fourcc.c
> @@ -210,6 +210,14 @@ const struct drm_format_info *__drm_format_info(u32
> format)
> { .format = DRM_FORMAT_ABGR2101010, .depth = 30,
> .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true
> },
> { .format = DRM_FORMAT_RGBA1010102, .depth = 30,
> .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true
> },
> { .format = DRM_FORMAT_BGRA1010102, .depth = 30,
> .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true
> },
> + { .format = DRM_FORMAT_RGB161616, .depth = 0,
> + .num_planes = 1, .char_per_block = { 6, 0, 0 },
> + .block_w = { 1, 0, 0 }, .block_h = { 1, 0, 0 },
> + .hsub = 1, .vsub = 1, .has_alpha = false },
> + { .format = DRM_FORMAT_BGR161616, .depth = 0,
> + .num_planes = 1, .char_per_block = { 6, 0, 0 },
> + .block_w = { 1, 0, 0 }, .block_h = { 1, 0, 0 },
> + .hsub = 1, .vsub = 1, .has_alpha = false },
> { .format = DRM_FORMAT_ARGB8888, .depth = 32,
> .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true
> },
> { .format = DRM_FORMAT_ABGR8888, .depth = 32,
> .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true
> },
> { .format = DRM_FORMAT_RGBA8888, .depth = 32,
> .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true
> },
> diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
> index 84d502e42961..00db00083175 100644
> --- a/include/uapi/drm/drm_fourcc.h
> +++ b/include/uapi/drm/drm_fourcc.h
> @@ -210,6 +210,10 @@ extern "C" {
> #define DRM_FORMAT_RGBA1010102 fourcc_code('R', 'A', '3', '0') /* [31:0]
> R:G:B:A 10:10:10:2 little endian */
> #define DRM_FORMAT_BGRA1010102 fourcc_code('B', 'A', '3', '0') /* [31:0]
> B:G:R:A 10:10:10:2 little endian */
>
> +/* 48 bpp RGB */
> +#define DRM_FORMAT_RGB161616 fourcc_code('R', 'G', '4', '8') /* [47:0] R:G:B
> 16:16:16 little endian */
> +#define DRM_FORMAT_BGR161616 fourcc_code('B', 'G', '4', '8') /* [47:0] B:G:R
> 16:16:16 little endian */
> +
> /* 64 bpp RGB */
> #define DRM_FORMAT_XRGB16161616 fourcc_code('X', 'R', '4', '8') /*
> [63:0] x:R:G:B 16:16:16:16 little endian */
> #define DRM_FORMAT_XBGR16161616 fourcc_code('X', 'B', '4', '8') /*
> [63:0] x:B:G:R 16:16:16:16 little endian */
> --
> 2.43.0
>
