Now the VBT.seq->t11_t12 value adds 100ms to both Gen9_LP
as well as non Gen9_LP cases so no need to special case
and do -1 during HW readout and +1 during pp_div write
for Gen9_LP/CNP case.
Reviewed-by: Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Manasi Navare <manasi.d.navare@xxxxxxxxx>
Suggested-by: Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Clint Taylor <clinton.a.taylor@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_dp.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index be9e17a..67bc8a7a 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -5178,12 +5178,8 @@ intel_pps_readout_hw_state(struct drm_i915_private *dev_priv,
PANEL_POWER_DOWN_DELAY_SHIFT;
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)
- seq->t11_t12 = (tmp - 1) * 1000;
- else
- seq->t11_t12 = 0;
+ seq->t11_t12 = ((pp_ctl & BXT_POWER_CYCLE_DELAY_MASK) >>
+ BXT_POWER_CYCLE_DELAY_SHIFT) * 1000;
} else {
seq->t11_t12 = ((pp_div & PANEL_POWER_CYCLE_DELAY_MASK) >>
PANEL_POWER_CYCLE_DELAY_SHIFT) * 1000;
@@ -5342,7 +5338,7 @@ intel_dp_init_panel_power_sequencer_registers(struct drm_device *dev,
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)
+ pp_div |= (DIV_ROUND_UP(seq->t11_t12, 1000)
<< BXT_POWER_CYCLE_DELAY_SHIFT);
} else {
pp_div = ((100 * div)/2 - 1) << PP_REFERENCE_DIVIDER_SHIFT;
--
2.1.4
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