[PATCH v3] drm/fourcc: Add AXBXGXRX106106106106 format

[Matteo Franchin]

v3 includes the Signed-off-by and Acked-by lines in the commit. No
other changes.

At this point, I'd need some help from a maintainer/committer to merge
this, I understand.

Daniel Vetter, are you happy to do this or does this work differently?

Many thanks,
Matteo

On Mon, Oct 12, 2020 at 05:40:43PM +0100, Matteo Franchin wrote:
> Add ABGR format with 10-bit components packed in 64-bit per pixel.
> This format can be used to handle
> VK_FORMAT_R10X6G10X6B10X6A10X6_UNORM_4PACK16 on little-endian
> architectures.
> 
> Signed-off-by: Matteo Franchin <matteo.franchin at arm.com>
> Reviewed-by: Brian Starkey <brian.starkey at arm.com>
> Acked-by: Daniel Vetter <daniel.vetter at ffwll.ch>
> ---
>  drivers/gpu/drm/drm_fourcc.c  | 1 +
>  include/uapi/drm/drm_fourcc.h | 6 ++++++
>  2 files changed, 7 insertions(+)
> 
> diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
> index 722c7ebe4e88..03262472059c 100644
> --- a/drivers/gpu/drm/drm_fourcc.c
> +++ b/drivers/gpu/drm/drm_fourcc.c
> @@ -202,6 +202,7 @@ const struct drm_format_info *__drm_format_info(u32 format)
>  		{ .format = DRM_FORMAT_XBGR16161616F,	.depth = 0,  .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1 },
>  		{ .format = DRM_FORMAT_ARGB16161616F,	.depth = 0,  .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>  		{ .format = DRM_FORMAT_ABGR16161616F,	.depth = 0,  .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
> +		{ .format = DRM_FORMAT_AXBXGXRX106106106106, .depth = 0, .num_planes = 1, .cpp = { 8, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>  		{ .format = DRM_FORMAT_RGB888_A8,	.depth = 32, .num_planes = 2, .cpp = { 3, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>  		{ .format = DRM_FORMAT_BGR888_A8,	.depth = 32, .num_planes = 2, .cpp = { 3, 1, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true },
>  		{ .format = DRM_FORMAT_XRGB8888_A8,	.depth = 32, .num_planes = 2, .cpp = { 4, 1, 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 6f0628eb13a6..d720f1e8ae5e 100644
> --- a/include/uapi/drm/drm_fourcc.h
> +++ b/include/uapi/drm/drm_fourcc.h
> @@ -179,6 +179,12 @@ extern "C" {
>  #define DRM_FORMAT_ARGB16161616F fourcc_code('A', 'R', '4', 'H') /* [63:0] A:R:G:B 16:16:16:16 little endian */
>  #define DRM_FORMAT_ABGR16161616F fourcc_code('A', 'B', '4', 'H') /* [63:0] A:B:G:R 16:16:16:16 little endian */
>  
> +/*
> + * RGBA format with 10-bit components packed in 64-bit per pixel, with 6 bits
> + * of unused padding per component:
> + */
> +#define DRM_FORMAT_AXBXGXRX106106106106 fourcc_code('A', 'B', '1', '0') /* [63:0] A:x:B:x:G:x:R:x 10:6:10:6:10:6:10:6 little endian */
> +
>  /* packed YCbCr */
>  #define DRM_FORMAT_YUYV		fourcc_code('Y', 'U', 'Y', 'V') /* [31:0] Cr0:Y1:Cb0:Y0 8:8:8:8 little endian */
>  #define DRM_FORMAT_YVYU		fourcc_code('Y', 'V', 'Y', 'U') /* [31:0] Cb0:Y1:Cr0:Y0 8:8:8:8 little endian */
> -- 
> 2.17.1