[Intel-gfx] [PATCH] drm/i915/dg2: DG2 intermediate DP source rates are different from CNL+

[Jani Nikula]

DG2 has 243000 but not 648000.

Bspec: 54034
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 75d4ebc66941..e21de08fea32 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -247,6 +247,9 @@ static void
 intel_dp_set_source_rates(struct intel_dp *intel_dp)
 {
 	/* The values must be in increasing order */
+	static const int dg2_rates[] = {
+		162000, 216000, 243000, 270000, 324000, 432000, 540000, 810000,
+	};
 	static const int icl_rates[] = {
 		162000, 216000, 270000, 324000, 432000, 540000, 648000, 810000
 	};
@@ -272,7 +275,10 @@ intel_dp_set_source_rates(struct intel_dp *intel_dp)
 	drm_WARN_ON(&dev_priv->drm,
 		    intel_dp->source_rates || intel_dp->num_source_rates);
 
-	if (DISPLAY_VER(dev_priv) >= 11) {
+	if (IS_DG2(dev_priv)) {
+		source_rates = dg2_rates;
+		size = ARRAY_SIZE(dg2_rates);
+	} else if (DISPLAY_VER(dev_priv) >= 11) {
 		source_rates = icl_rates;
 		size = ARRAY_SIZE(icl_rates);
 		if (IS_JSL_EHL(dev_priv))
-- 
2.20.1