[PATCH 6/8] drm/i915/display: Extract glk_read_csc()

[Bhanuprakash Modem]

For glk, add hw read out to create hw blob of ctm coeff values.

Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem at intel.com>
---
 drivers/gpu/drm/i915/display/intel_color.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 5e581fb61a8c..3c2a74d4e4bf 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -963,6 +963,14 @@ static void glk_load_luts(const struct intel_crtc_state *crtc_state)
 	}
 }
 
+static void glk_read_csc(struct intel_crtc_state *crtc_state)
+{
+	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+
+	if (crtc_state->csc_enable && !crtc_state->csc_mode)
+		crtc_state->hw.ctm = ilk_read_csc_matrix(crtc);
+}
+
 /* ilk+ "12.4" interpolated format (high 10 bits) */
 static u32 ilk_lut_12p4_udw(const struct drm_color_lut *color)
 {
@@ -2274,6 +2282,7 @@ void intel_color_init(struct intel_crtc *crtc)
 		} else if (IS_CANNONLAKE(dev_priv) || IS_GEMINILAKE(dev_priv)) {
 			dev_priv->display.load_luts = glk_load_luts;
 			dev_priv->display.read_luts = glk_read_luts;
+			dev_priv->display.read_csc = glk_read_csc;
 		} else if (INTEL_GEN(dev_priv) >= 8) {
 			dev_priv->display.load_luts = bdw_load_luts;
 			dev_priv->display.read_csc = ilk_read_csc;
-- 
2.20.1