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| author | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2017-06-02 13:06:44 -0700 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2017-06-02 13:59:41 -0700 |
| commit | 938361e7a50619b76a1415c86438eaee41397220 (patch) | |
| tree | 261b1cefe9ab1cd37c7088de49ae49271a2c9ab4 /drivers/gpu/drm/i915/intel_dp.c | |
| parent | 3d02352cd9e8b43805bf68e50e395fda2e218791 (diff) | |
| download | op-kernel-dev-938361e7a50619b76a1415c86438eaee41397220.zip op-kernel-dev-938361e7a50619b76a1415c86438eaee41397220.tar.gz | |
drm/i915/cnp: Panel Power sequence changes for CNP PCH.
Panel Power sequences for CNP is similar to Broxton,
but with only one sequencer.
Main difference from SPT is that PP_DIVISOR was removed
and power cycle delay has been moved to PP_CONTROL.
v2: Add missed pp_div write, that is now part of PP_CONTROL[8:4]
as on Broxton. (Found by DK)
v3: Improve commit message. (By DK)
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Clinton Taylor <clinton.a.taylor@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1496434004-29812-6-git-send-email-rodrigo.vivi@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 49a1db3..d2fd8b6 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); } @@ -5124,7 +5124,7 @@ intel_pps_readout_hw_state(struct drm_i915_private *dev_priv, 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); } @@ -5142,7 +5142,7 @@ intel_pps_readout_hw_state(struct drm_i915_private *dev_priv, 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) @@ -5299,7 +5299,7 @@ intel_dp_init_panel_power_sequencer_registers(struct drm_device *dev, (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) @@ -5325,7 +5325,7 @@ intel_dp_init_panel_power_sequencer_registers(struct drm_device *dev, I915_WRITE(regs.pp_on, pp_on); I915_WRITE(regs.pp_off, 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_div); else I915_WRITE(regs.pp_div, pp_div); @@ -5333,7 +5333,7 @@ intel_dp_init_panel_power_sequencer_registers(struct drm_device *dev, 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)); } |
