[Intel-gfx] [PATCH 13/19] drm/i915: untested DP support for Ivy Bridge

Jesse Barnes jbarnes at virtuousgeek.org
Fri Apr 29 00:12:59 CEST 2011


Treat it like Sandy Bridge in a few places.

Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
---
 drivers/gpu/drm/i915/intel_dp.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 0daefca..1d0eccd 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -312,7 +312,7 @@ intel_dp_aux_ch(struct intel_dp *intel_dp,
 	else
 		aux_clock_divider = intel_hrawclk(dev) / 2;
 
-	if (IS_GEN6(dev))
+	if (IS_GEN6(dev) || IS_GEN7(dev))
 		precharge = 3;
 	else
 		precharge = 5;
@@ -1302,7 +1302,7 @@ intel_dp_start_link_train(struct intel_dp *intel_dp)
 	for (;;) {
 		/* Use intel_dp->train_set[0] to set the voltage and pre emphasis values */
 		uint32_t    signal_levels;
-		if (IS_GEN6(dev) && is_edp(intel_dp)) {
+		if ((IS_GEN6(dev) || IS_GEN7(dev)) && is_edp(intel_dp)) {
 			signal_levels = intel_gen6_edp_signal_levels(intel_dp->train_set[0]);
 			DP = (DP & ~EDP_LINK_TRAIN_VOL_EMP_MASK_SNB) | signal_levels;
 		} else {
@@ -1376,7 +1376,7 @@ intel_dp_complete_link_train(struct intel_dp *intel_dp)
 			break;
 		}
 
-		if (IS_GEN6(dev) && is_edp(intel_dp)) {
+		if ((IS_GEN6(dev) || IS_GEN7(dev)) && is_edp(intel_dp)) {
 			signal_levels = intel_gen6_edp_signal_levels(intel_dp->train_set[0]);
 			DP = (DP & ~EDP_LINK_TRAIN_VOL_EMP_MASK_SNB) | signal_levels;
 		} else {
-- 
1.7.4.1




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