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drm/i915/dp: fix EHL/JSL max source rates calculation

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Only higher voltage sku can support HBR3 so a condition
check added in max source rate calculation for ehl/jsl.

Bspec: 32247, 20598

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210901160402.24816-4-animesh.manna@intel.com
This commit is contained in:
Animesh Manna
2021-09-01 21:34:00 +05:30
committed by Imre Deak
parent 533140cb51
commit 8ee8167771
1 changed files with 5 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/i915/display/intel_dp.c
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@@ -315,7 +315,11 @@ static int icl_max_source_rate(struct intel_dp *intel_dp)
static int ehl_max_source_rate(struct intel_dp *intel_dp)
{
if (intel_dp_is_edp(intel_dp))
struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
enum phy phy = intel_port_to_phy(dev_priv, dig_port->base.port);
if (intel_dp_is_edp(intel_dp) || is_low_voltage_sku(dev_priv, phy))
return 540000;
return 810000;