Please ignore these two patches. They contain errors and are superseded by a new patch series I just
sent.
Ander
On Mon, 2015-10-05 at 17:44 +0300, Ander Conselvan de Oliveira wrote:
> 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;
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