diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 76c8a0bd17f9..ead37c449019 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -97,6 +97,9 @@ static const int bxt_rates[] = { 162000, 216000, 243000, 270000, 324000, 432000, 540000 }; static const int skl_rates[] = { 162000, 216000, 270000, 324000, 432000, 540000 }; +static const int cnl_rates[] = { 162000, 216000, 270000, + 324000, 432000, 540000, + 648000, 810000 }; static const int default_rates[] = { 162000, 270000, 540000 }; /** @@ -229,8 +232,10 @@ intel_dp_set_source_rates(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 port port = dig_port->port; const int *source_rates; int size; + u32 voltage; /* This should only be done once */ WARN_ON(intel_dp->source_rates || intel_dp->num_source_rates); @@ -238,6 +243,13 @@ intel_dp_set_source_rates(struct intel_dp *intel_dp) if (IS_GEN9_LP(dev_priv)) { source_rates = bxt_rates; size = ARRAY_SIZE(bxt_rates); + } else if (IS_CANNONLAKE(dev_priv)) { + source_rates = cnl_rates; + size = ARRAY_SIZE(cnl_rates); + voltage = I915_READ(CNL_PORT_COMP_DW3) & VOLTAGE_INFO_MASK; + if (port == PORT_A || port == PORT_D || + voltage == VOLTAGE_INFO_0_85V) + size -= 2; } else if (IS_GEN9_BC(dev_priv)) { source_rates = skl_rates; size = ARRAY_SIZE(skl_rates); |