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drm/i915: Configure overlay cc_out precision based on crtc gamma config

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Put the overlay color conversion unit into 10bit mode if the
pipe isn't using the 8bit legacy gamma. Not 100% sure this is
what the intention of the bit was but makes at least some sense to
me.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191028113036.27553-4-ville.syrjala@linux.intel.com
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Ville Syrjälä 2019-10-28 13:30:34 +02:00
parent 0e12b4e31f
commit e0b5d48e55
1 changed files with 6 additions and 2 deletions
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8
drivers/gpu/drm/i915/display/intel_overlay.c
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@ -785,9 +785,13 @@ static int intel_overlay_do_put_image(struct intel_overlay *overlay,
i915_gem_object_flush_frontbuffer(new_bo, ORIGIN_DIRTYFB);
if (!overlay->active) {
u32 oconfig;
const struct intel_crtc_state *crtc_state =
overlay->crtc->config;
u32 oconfig = 0;
oconfig = OCONF_CC_OUT_8BIT;
if (crtc_state->gamma_enable &&
crtc_state->gamma_mode == GAMMA_MODE_MODE_8BIT)
oconfig |= OCONF_CC_OUT_8BIT;
if (IS_GEN(dev_priv, 4))
oconfig |= OCONF_CSC_MODE_BT709;
oconfig |= pipe == 0 ?