diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 7 |
2 files changed, 11 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index fc8a4a940..31de7e4 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3959,8 +3959,11 @@ #define _TRANSA_CHICKEN2 0xf0064 #define _TRANSB_CHICKEN2 0xf1064 #define TRANS_CHICKEN2(pipe) _PIPE(pipe, _TRANSA_CHICKEN2, _TRANSB_CHICKEN2) -#define TRANS_CHICKEN2_TIMING_OVERRIDE (1<<31) -#define TRANS_CHICKEN2_FDI_POLARITY_REVERSED (1<<29) +#define TRANS_CHICKEN2_TIMING_OVERRIDE (1<<31) +#define TRANS_CHICKEN2_FDI_POLARITY_REVERSED (1<<29) +#define TRANS_CHICKEN2_FRAME_START_DELAY_MASK (3<<27) +#define TRANS_CHICKEN2_DISABLE_DEEP_COLOR_COUNTER (1<<26) +#define TRANS_CHICKEN2_DISABLE_DEEP_COLOR_MODESWITCH (1<<25) #define SOUTH_CHICKEN1 0xc2000 #define FDIA_PHASE_SYNC_SHIFT_OVR 19 diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 6f67fa1..e34ad96 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3604,9 +3604,14 @@ static void cpt_init_clock_gating(struct drm_device *dev) * downward, on (only) LVDS of some HP laptops with IVY. */ for_each_pipe(pipe) { - val = TRANS_CHICKEN2_TIMING_OVERRIDE; + val = I915_READ(TRANS_CHICKEN2(pipe)); + val |= TRANS_CHICKEN2_TIMING_OVERRIDE; + val &= ~TRANS_CHICKEN2_FDI_POLARITY_REVERSED; if (dev_priv->fdi_rx_polarity_inverted) val |= TRANS_CHICKEN2_FDI_POLARITY_REVERSED; + val &= ~TRANS_CHICKEN2_FRAME_START_DELAY_MASK; + val &= ~TRANS_CHICKEN2_DISABLE_DEEP_COLOR_COUNTER; + val &= ~TRANS_CHICKEN2_DISABLE_DEEP_COLOR_MODESWITCH; I915_WRITE(TRANS_CHICKEN2(pipe), val); } /* WADP0ClockGatingDisable */ |