|
Reviewed-by: Sivakumar Thulasimani <sivakumar.thulasimani@xxxxxxxxx> On 3/17/2015 3:10 PM, Imre Deak wrote:
From: Vandana Kannan <vandana.kannan@xxxxxxxxx> Broxton supports 3 voltage swing levels on all DP ports. Max level of pre-emphasis will be taken care with the existing code. v2: Patch rebased v3: (imre) - keep existing behavior for other platforms - clarify commit message Signed-off-by: Vandana Kannan <vandana.kannan@xxxxxxxxx> (v2) Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx> --- drivers/gpu/drm/i915/intel_dp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 1cb6eb0..019c224 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -2832,7 +2832,9 @@ intel_dp_voltage_max(struct intel_dp *intel_dp) struct drm_i915_private *dev_priv = dev->dev_private; enum port port = dp_to_dig_port(intel_dp)->port; - if (INTEL_INFO(dev)->gen >= 9) { + if (IS_BROXTON(dev)) + return DP_TRAIN_VOLTAGE_SWING_LEVEL_3; + else if (INTEL_INFO(dev)->gen >= 9) { if (dev_priv->vbt.edp_low_vswing && port == PORT_A) return DP_TRAIN_VOLTAGE_SWING_LEVEL_3; return DP_TRAIN_VOLTAGE_SWING_LEVEL_2; |
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