[Intel-gfx] [PATCH] drm/i915: support two CSC module on gen11 and later

[Lee Shawn C]

There are two CSC on pipeline on gen11 and later platform.
User space application is allowed to enable CTM and RGB
to YCbCr coversion at the same time now.

Cc: Ville Syrjala <ville.syrjala at linux.intel.com>
Cc: Imre Deak <imre.deak at intel.com>
Cc: Jani Nikula <jani.nikula at linux.intel.com>
Cc: Cooper Chiou <cooper.chiou at intel.com>
Cc: Shankar Uma <uma.shankar at intel.com>

Signed-off-by: Lee Shawn C <shawn.c.lee at intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 1a0f00f37ca9..721d5ce1ed2b 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -8303,7 +8303,8 @@ static int intel_crtc_compute_config(struct intel_crtc *crtc,
 		return -EINVAL;
 	}
 
-	if ((pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 ||
+	if ((INTEL_GEN(dev_priv) < 11) &&
+	    (pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 ||
 	     pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR444) &&
 	     pipe_config->hw.ctm) {
 		/*
-- 
2.17.1