[PATCH 4/7] drm/i915/psr: Skip aux handeshake if the vbt tells us to

Daniel Vetter
2016-05-18T16:47:29Z

Not sure we can trust VBT on this one, but let's try.

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Sonika Jindal <sonika.jindal@intel.com>
Cc: Durgadoss R <durgadoss.r@intel.com>
Cc: "Pandiyan, Dhinakaran" <dhinakaran.pandiyan@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
drivers/gpu/drm/i915/intel_psr.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
index 0295d8dd483f..a088be65a267 100644
--- a/drivers/gpu/drm/i915/intel_psr.c
+++ b/drivers/gpu/drm/i915/intel_psr.c
@@ -315,6 +315,9 @@ static void hsw_psr_enable_source(struct intel_dp *intel_dp)
else
val |= EDP_PSR_TP1_TP2_SEL;

+ if (!dev_priv->vbt.psr.require_aux_wakeup)
+ val |= EDP_PSR_SKIP_AUX_EXIT;
+
I915_WRITE(EDP_PSR_CTL, val);

if (!dev_priv->psr.psr2_support)
--
2.8.1