Re: [PATCH 06/13] drm/i915/cnp: Panel Power sequence changes for CNP PCH.

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Reviewed-by: Clinton Taylor <clinton.a.taylor@xxxxxxxxx>

-Clint

On 05/30/2017 03:42 PM, Rodrigo Vivi wrote:
As for BXT, PP_DIVISOR was removed from CNP PCH and power
cycle delay has been moved to PP_CONTROL.

Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
---
  drivers/gpu/drm/i915/intel_dp.c | 10 +++++-----
  1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 58dca87..1a27c72 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -798,7 +798,7 @@ static void intel_pps_get_registers(struct drm_i915_private *dev_priv,
  	regs->pp_stat = PP_STATUS(pps_idx);
  	regs->pp_on = PP_ON_DELAYS(pps_idx);
  	regs->pp_off = PP_OFF_DELAYS(pps_idx);
-	if (!IS_GEN9_LP(dev_priv))
+	if (!IS_GEN9_LP(dev_priv) && !HAS_PCH_CNP(dev_priv))
  		regs->pp_div = PP_DIVISOR(pps_idx);
  }
@@ -5099,7 +5099,7 @@ static void intel_dp_init_panel_power_timestamps(struct intel_dp *intel_dp) pp_on = I915_READ(regs.pp_on);
  	pp_off = I915_READ(regs.pp_off);
-	if (!IS_GEN9_LP(dev_priv)) {
+	if (!IS_GEN9_LP(dev_priv) && !HAS_PCH_CNP(dev_priv)) {
  		I915_WRITE(regs.pp_ctrl, pp_ctl);
  		pp_div = I915_READ(regs.pp_div);
  	}
@@ -5117,7 +5117,7 @@ static void intel_dp_init_panel_power_timestamps(struct intel_dp *intel_dp)
  	seq->t10 = (pp_off & PANEL_POWER_DOWN_DELAY_MASK) >>
  		   PANEL_POWER_DOWN_DELAY_SHIFT;
- if (IS_GEN9_LP(dev_priv)) {
+	if (IS_GEN9_LP(dev_priv) || HAS_PCH_CNP(dev_priv)) {
  		u16 tmp = (pp_ctl & BXT_POWER_CYCLE_DELAY_MASK) >>
  			BXT_POWER_CYCLE_DELAY_SHIFT;
  		if (tmp > 0)
@@ -5274,7 +5274,7 @@ static void intel_dp_init_panel_power_timestamps(struct intel_dp *intel_dp)
  		 (seq->t10 << PANEL_POWER_DOWN_DELAY_SHIFT);
  	/* Compute the divisor for the pp clock, simply match the Bspec
  	 * formula. */
-	if (IS_GEN9_LP(dev_priv)) {
+	if (IS_GEN9_LP(dev_priv) || HAS_PCH_CNP(dev_priv)) {
  		pp_div = I915_READ(regs.pp_ctrl);
  		pp_div &= ~BXT_POWER_CYCLE_DELAY_MASK;
  		pp_div |= (DIV_ROUND_UP((seq->t11_t12 + 1), 1000)
@@ -5308,7 +5308,7 @@ static void intel_dp_init_panel_power_timestamps(struct intel_dp *intel_dp)
  	DRM_DEBUG_KMS("panel power sequencer register settings: PP_ON %#x, PP_OFF %#x, PP_DIV %#x\n",
  		      I915_READ(regs.pp_on),
  		      I915_READ(regs.pp_off),
-		      IS_GEN9_LP(dev_priv) ?
+		      (IS_GEN9_LP(dev_priv) || HAS_PCH_CNP(dev_priv)) ?
  		      (I915_READ(regs.pp_ctrl) & BXT_POWER_CYCLE_DELAY_MASK) :
  		      I915_READ(regs.pp_div));
  }

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