[Intel-gfx] [PATCH 2/4] drm/i915: Remove PSR HW tracking.

[Rodrigo Vivi]

Now that we are tracking psr states on Software side we don't need HW help anymore.
So we can clean up the code a bit and avoid unecessary sets.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index a796831..9414e67 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1778,10 +1778,7 @@ static void intel_edp_psr_enable_sink(struct intel_dp *intel_dp)
 {
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
 	struct drm_device *dev = dig_port->base.base.dev;
-	struct drm_i915_private *dev_priv = dev->dev_private;
 	uint32_t aux_clock_divider;
-	int precharge = 0x3;
-	int msg_size = 5;       /* Header(4) + Message(1) */
 	bool only_standby = false;
 
 	aux_clock_divider = intel_dp->get_aux_clock_divider(intel_dp, 0);
@@ -1796,15 +1793,6 @@ static void intel_edp_psr_enable_sink(struct intel_dp *intel_dp)
 	else
 		drm_dp_dpcd_writeb(&intel_dp->aux, DP_PSR_EN_CFG,
 				   DP_PSR_ENABLE | DP_PSR_MAIN_LINK_ACTIVE);
-
-	/* Setup AUX registers */
-	I915_WRITE(EDP_PSR_AUX_DATA1(dev), EDP_PSR_DPCD_COMMAND);
-	I915_WRITE(EDP_PSR_AUX_DATA2(dev), EDP_PSR_DPCD_NORMAL_OPERATION);
-	I915_WRITE(EDP_PSR_AUX_CTL(dev),
-		   DP_AUX_CH_CTL_TIME_OUT_400us |
-		   (msg_size << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT) |
-		   (precharge << DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT) |
-		   (aux_clock_divider << DP_AUX_CH_CTL_BIT_CLOCK_2X_SHIFT));
 }
 
 static void intel_edp_psr_enable_source(struct intel_dp *intel_dp)
-- 
1.9.3