Simplify intel_dp_pre_emphasis_max() by grouping the conditions for VLV,
HSW, BDW and gen 9 together, since they all use the same values.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_dp.c | 29 ++---------------------------
1 file changed, 2 insertions(+), 27 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 3fa8a55..c7f93c5 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -3085,7 +3085,7 @@ intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, uint8_t voltage_swing)
struct drm_device *dev = intel_dp_to_dev(intel_dp);
enum port port = dp_to_dig_port(intel_dp)->port;
- if (INTEL_INFO(dev)->gen >= 9) {
+ if (INTEL_INFO(dev)->gen >= 7 || !IS_IVYBRIDGE(dev)) {
switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) {
case DP_TRAIN_VOLTAGE_SWING_LEVEL_0:
return DP_TRAIN_PRE_EMPH_LEVEL_3;
@@ -3094,35 +3094,10 @@ intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, uint8_t voltage_swing)
case DP_TRAIN_VOLTAGE_SWING_LEVEL_2:
return DP_TRAIN_PRE_EMPH_LEVEL_1;
case DP_TRAIN_VOLTAGE_SWING_LEVEL_3:
- return DP_TRAIN_PRE_EMPH_LEVEL_0;
default:
return DP_TRAIN_PRE_EMPH_LEVEL_0;
}
- } else if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
- switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) {
- case DP_TRAIN_VOLTAGE_SWING_LEVEL_0:
- return DP_TRAIN_PRE_EMPH_LEVEL_3;
- case DP_TRAIN_VOLTAGE_SWING_LEVEL_1:
- return DP_TRAIN_PRE_EMPH_LEVEL_2;
- case DP_TRAIN_VOLTAGE_SWING_LEVEL_2:
- return DP_TRAIN_PRE_EMPH_LEVEL_1;
- case DP_TRAIN_VOLTAGE_SWING_LEVEL_3:
- default:
- return DP_TRAIN_PRE_EMPH_LEVEL_0;
- }
- } else if (IS_VALLEYVIEW(dev)) {
- switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) {
- case DP_TRAIN_VOLTAGE_SWING_LEVEL_0:
- return DP_TRAIN_PRE_EMPH_LEVEL_3;
- case DP_TRAIN_VOLTAGE_SWING_LEVEL_1:
- return DP_TRAIN_PRE_EMPH_LEVEL_2;
- case DP_TRAIN_VOLTAGE_SWING_LEVEL_2:
- return DP_TRAIN_PRE_EMPH_LEVEL_1;
- case DP_TRAIN_VOLTAGE_SWING_LEVEL_3:
- default:
- return DP_TRAIN_PRE_EMPH_LEVEL_0;
- }
- } else if (IS_GEN7(dev) && port == PORT_A) {
+ } else if (IS_IVYBRIDGE(dev) && port == PORT_A) {
switch (voltage_swing & DP_TRAIN_VOLTAGE_SWING_MASK) {
case DP_TRAIN_VOLTAGE_SWING_LEVEL_0:
return DP_TRAIN_PRE_EMPH_LEVEL_2;
--
2.4.3
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