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drm/i915: Rewrite icl_min_plane_width()

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Replace the ginormous switch statement in icl_plane_min_width() with
simple arithmetic.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251009211313.30234-2-ville.syrjala@linux.intel.com
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
This commit is contained in:
Ville Syrjälä 2025-10-10 00:13:05 +03:00
parent 4b274b0b61
commit 0e64ee70ed
1 changed files with 10 additions and 33 deletions
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43
drivers/gpu/drm/i915/display/skl_universal_plane.c
View File

@ -394,40 +394,17 @@ static int icl_plane_min_width(const struct drm_framebuffer *fb,
int color_plane,
unsigned int rotation)
{
int min_width;
min_width = 16 / fb->format->cpp[color_plane];
/* Wa_14011264657, Wa_14011050563: gen11+ */
switch (fb->format->format) {
case DRM_FORMAT_C8:
return 18;
case DRM_FORMAT_RGB565:
return 10;
case DRM_FORMAT_XRGB8888:
case DRM_FORMAT_XBGR8888:
case DRM_FORMAT_ARGB8888:
case DRM_FORMAT_ABGR8888:
case DRM_FORMAT_XRGB2101010:
case DRM_FORMAT_XBGR2101010:
case DRM_FORMAT_ARGB2101010:
case DRM_FORMAT_ABGR2101010:
case DRM_FORMAT_XVYU2101010:
case DRM_FORMAT_Y212:
case DRM_FORMAT_Y216:
return 6;
case DRM_FORMAT_NV12:
return 20;
case DRM_FORMAT_P010:
case DRM_FORMAT_P012:
case DRM_FORMAT_P016:
return 12;
case DRM_FORMAT_XRGB16161616F:
case DRM_FORMAT_XBGR16161616F:
case DRM_FORMAT_ARGB16161616F:
case DRM_FORMAT_ABGR16161616F:
case DRM_FORMAT_XVYU12_16161616:
case DRM_FORMAT_XVYU16161616:
return 4;
default:
return 1;
}
if (intel_format_info_is_yuv_semiplanar(fb->format, fb->modifier))
min_width += 4;
else
min_width += 2;
return min_width;
}
static int xe3_plane_max_width(const struct drm_framebuffer *fb,