kernel/linux.git/include/drm/drm_fourcc.h, branch v6.6.131

drm/fourcc: Add drm_format_info.is_color_indexed flag

2022-07-09T13:00:08+00:00

Add a flag to struct drm_format_info to indicate if a format is color-indexed, similar to the existing .is_yuv flag. This way generic code and drivers can just check this flag, instead of checking against a list of fourcc formats. Signed-off-by: Geert Uytterhoeven Reviewed-by: Javier Martinez Canillas Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/90cd390b2b4d481661f966de7b504f1702d80dfd.1657294931.git.geert@linux-m68k.org

drm/fourcc: Add drm_format_info_bpp() helper

2022-07-09T12:59:22+00:00

Add a helper to retrieve the actual number of bits per pixel for a plane, taking into account the number of characters and pixels per block for tiled formats. Signed-off-by: Geert Uytterhoeven Reviewed-by: Javier Martinez Canillas Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/1cae5ebc28513ec1c91c66b00647ce3ca23bfba7.1657294931.git.geert@linux-m68k.org

drm: Define DRM_FORMAT_MAX_PLANES

2021-08-02T14:41:20+00:00

DRM uses a magic number of 4 for the maximum number of planes per color format. Declare this constant via DRM_FORMAT_MAX_PLANES and update the related code. Some code depends on the length of arrays that are now declared with DRM_FORMAT_MAX_PLANES. Convert it from '4' to ARRAY_SIZE. v2: * mention usage of ARRAY_SIZE() in the commit message (Maxime) * also fix error handling in drm_gem_fb_init_with_funcs() (kernel test robot) * include for DRM_FORMAT_MAX_PLANES Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20210730183511.20080-2-tzimmermann@suse.de

drm/fourcc: Remove struct drm_format_buf_name

2021-05-27T06:34:57+00:00

The structure is unused. Remove it. Signed-off-by: Thomas Zimmermann Reviewed-by: Sakari Ailus Link: https://patchwork.freedesktop.org/patch/msgid/20210516121315.30321-5-tzimmermann@suse.de

drm: Remove drm_get_format_name()

2021-05-27T06:34:50+00:00

The %p4cc printk format modifier was recently added to print fourcc codes, replacing drm_get_format_name(). The function is no longer needed, so remove it. Signed-off-by: Sakari Ailus Signed-off-by: Thomas Zimmermann Reviewed-by: Petr Mladek Reviewed-by: Andy Shevchenko Link: https://patchwork.freedesktop.org/patch/msgid/20210516121315.30321-4-tzimmermann@suse.de

drm/fb: Extend format_info member arrays to handle four planes

2020-01-07T11:16:08+00:00

addfb() uAPI has supported four planes for a while now, make format_info compatible with that. Cc: Ville Syrjälä Cc: Matt Roper Cc: Mika Kahola Cc: dri-devel@lists.freedesktop.org Signed-off-by: Dhinakaran Pandiyan Signed-off-by: Imre Deak Reviewed-by: Mika Kahola Link: https://patchwork.freedesktop.org/patch/msgid/20191231233756.18753-7-imre.deak@intel.com

drm/fourcc: Fix the parameters name in the documentation

2019-05-21T14:58:05+00:00

We introduced new functions in the commit bf39607c1614 ("drm/fourcc: Pass the format_info pointer to drm_format_plane_width/height") based on previous ones but with a slightly different prototype. However, the documentation wasn't changed to reflect that change. Fixes: bf39607c1614 ("drm/fourcc: Pass the format_info pointer to drm_format_plane_width/height") Reported-by: kbuild test robot Reviewed-by: Daniel Vetter Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20190521110906.15268-1-maxime.ripard@bootlin.com

drm: Remove users of drm_format_info_plane_cpp

2019-05-20T11:35:56+00:00

drm_format_info_plane_cpp() basically just returns the cpp array content found in the drm_format_info structure. Since it's pretty trivial, let's remove the function and have the users use the array directly Suggested-by: Ville Syrjälä Reviewed-by: Paul Kocialkowski Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/c0a78c87cd0410a1819edad2794ad06543c85bb5.1558002671.git-series.maxime.ripard@bootlin.com

drm/fourcc: Pass the format_info pointer to drm_format_plane_width/height

2019-05-20T11:35:24+00:00

So far, the drm_format_plane_height/width functions were operating on the format's fourcc and was doing a lookup to retrieve the drm_format_info structure and return the cpp. However, this is inefficient since in most cases, we will have the drm_format_info pointer already available so we shouldn't have to perform a new lookup. Some drm_fourcc functions also already operate on the drm_format_info pointer for that reason, so the API is quite inconsistent there. Let's follow the latter pattern and remove the extra lookup while being a bit more consistent. In order to be extra consistent, also rename that function to drm_format_info_plane_cpp and to a static function in the header to match the current policy. The parameters order have also be changed to match the other functions prototype. Reviewed-by: Emil Velikov Reviewed-by: Paul Kocialkowski Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/514af1d489d80b8b1767e3716b663ce5103da6eb.1558002671.git-series.maxime.ripard@bootlin.com

drm/fourcc: Pass the format_info pointer to drm_format_plane_cpp

2019-05-20T11:33:46+00:00

So far, the drm_format_plane_cpp function was operating on the format's fourcc and was doing a lookup to retrieve the drm_format_info structure and return the cpp. However, this is inefficient since in most cases, we will have the drm_format_info pointer already available so we shouldn't have to perform a new lookup. Some drm_fourcc functions also already operate on the drm_format_info pointer for that reason, so the API is quite inconsistent there. Let's follow the latter pattern and remove the extra lookup while being a bit more consistent. In order to be extra consistent, also rename that function to drm_format_info_plane_cpp and to a static function in the header to match the current policy. Reviewed-by: Emil Velikov Reviewed-by: Paul Kocialkowski Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/32aa13e53dbc98a90207fd290aa8e79f785fb11e.1558002671.git-series.maxime.ripard@bootlin.com