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drm/i915/display: Remove check for low voltage sku for max dp source rate 

The low voltage sku check can be ignored as OEMs need to consider that
when designing the board and then put any limits in VBT.

Same is now changed in Bspec pages.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5272

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@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/20220315080247.1161844-2-ankit.k.nautiyal@intel.com
This commit is contained in:
Ankit Nautiyal 2022-03-15 13:32:46 +05:30 committed by Imre Deak
parent 54903c7a6b
commit 73867c8709
1 changed files with 3 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
drivers/gpu/drm/i915/display/intel_dp.c
View File

@ -388,23 +388,13 @@ static int dg2_max_source_rate(struct intel_dp *intel_dp)
return intel_dp_is_edp(intel_dp) ? 810000 : 1350000;
}
static bool is_low_voltage_sku(struct drm_i915_private *i915, enum phy phy)
{
u32 voltage;
voltage = intel_de_read(i915, ICL_PORT_COMP_DW3(phy)) & VOLTAGE_INFO_MASK;
return voltage == VOLTAGE_INFO_0_85V;
}
static int icl_max_source_rate(struct intel_dp *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_phy_is_combo(dev_priv, phy) &&
(is_low_voltage_sku(dev_priv, phy) || !intel_dp_is_edp(intel_dp)))
if (intel_phy_is_combo(dev_priv, phy) && !intel_dp_is_edp(intel_dp))
return 540000;
return 810000;
@ -412,23 +402,7 @@ static int icl_max_source_rate(struct intel_dp *intel_dp)
static int ehl_max_source_rate(struct intel_dp *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;
}
static int dg1_max_source_rate(struct intel_dp *intel_dp)
{
struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
if (intel_phy_is_combo(i915, phy) && is_low_voltage_sku(i915, phy))
if (intel_dp_is_edp(intel_dp))
return 540000;
return 810000;
@ -471,7 +445,7 @@ intel_dp_set_source_rates(struct intel_dp *intel_dp)
max_rate = dg2_max_source_rate(intel_dp);
else if (IS_ALDERLAKE_P(dev_priv) || IS_ALDERLAKE_S(dev_priv) ||
IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv))
max_rate = dg1_max_source_rate(intel_dp);
max_rate = 810000;
else if (IS_JSL_EHL(dev_priv))
max_rate = ehl_max_source_rate(intel_dp);
else