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drm/i915: Disable sprite gamma on ivb-bdw

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We don't currently have any use for the sprite gamma on ivb-bdw.
Let's disable it. We already do that on skl+.

On pre-ivb there is no way to disable the sprite gamma, and it
only affects YCbCr pixel formats, whereas on ivb+ it also
affects RGB formats.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190703200824.5971-3-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2019-07-03 23:08:20 +03:00
parent 26443a4bc4
commit 423ee8e99a
2 changed files with 3 additions and 1 deletions
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2
drivers/gpu/drm/i915/display/intel_sprite.c
View File

@ -1013,6 +1013,8 @@ static u32 ivb_sprite_ctl(const struct intel_crtc_state *crtc_state,
return 0;
}
sprctl |= SPRITE_INT_GAMMA_DISABLE;
if (plane_state->base.color_encoding == DRM_COLOR_YCBCR_BT709)
sprctl |= SPRITE_YUV_TO_RGB_CSC_FORMAT_BT709;

2
drivers/gpu/drm/i915/i915_reg.h
View File

@ -6465,7 +6465,7 @@ enum {
#define SPRITE_YUV_ORDER_VYUY (3 << 16)
#define SPRITE_ROTATE_180 (1 << 15)
#define SPRITE_TRICKLE_FEED_DISABLE (1 << 14)
#define SPRITE_INT_GAMMA_ENABLE (1 << 13)
#define SPRITE_INT_GAMMA_DISABLE (1 << 13)
#define SPRITE_TILED (1 << 10)
#define SPRITE_DEST_KEY (1 << 2)
#define _SPRA_LINOFF 0x70284