Commit e0b5d48e authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

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



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: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191028113036.27553-4-ville.syrjala@linux.intel.com


Acked-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
parent 0e12b4e3

drivers/gpu/drm/i915/display/intel_overlay.c

+6 −2
Original line number Diff line number Diff line
@@ -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 ?

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