EHL do not support 648 and 652.8 MHz.
v2:
- Limiting maximum CD clock by max_cdclk_freq instead of remove it
from icl_calc_cdclk()(Ville and Jani)
BSpec: 20598
Cc: Clint Taylor <Clinton.A.Taylor@xxxxxxxxx>
Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Signed-off-by: José Roberto de Souza <jose.souza@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_cdclk.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index 8eef177b2bbd..daab4e9a6359 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -2606,7 +2606,12 @@ static int intel_compute_max_dotclk(struct drm_i915_private *dev_priv)
*/
void intel_update_max_cdclk(struct drm_i915_private *dev_priv)
{
- if (INTEL_GEN(dev_priv) >= 11) {
+ if (IS_ELKHARTLAKE(dev_priv)) {
+ if (dev_priv->cdclk.hw.ref == 24000)
+ dev_priv->max_cdclk_freq = 552000;
+ else
+ dev_priv->max_cdclk_freq = 556800;
+ } else if (INTEL_GEN(dev_priv) >= 11) {
if (dev_priv->cdclk.hw.ref == 24000)
dev_priv->max_cdclk_freq = 648000;
else
--
2.22.0
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