diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 3 |
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index f9f9fcc833c5..9f03cd063afe 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -7974,6 +7974,8 @@ enum { #define GEN6_PCODE_WRITE_D_COMP 0x11 #define HSW_PCODE_DE_WRITE_FREQ_REQ 0x17 #define DISPLAY_IPS_CONTROL 0x19 + /* See also IPS_CTL */ +#define IPS_PCODE_CONTROL (1 << 30) #define HSW_PCODE_DYNAMIC_DUTY_CYCLE_CONTROL 0x1A #define GEN9_PCODE_SAGV_CONTROL 0x21 #define GEN9_SAGV_DISABLE 0x0 diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index dbe7d8682c97..c4d8bb75686a 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4956,7 +4956,8 @@ void hsw_enable_ips(struct intel_crtc *crtc) assert_plane_enabled(dev_priv, crtc->plane); if (IS_BROADWELL(dev_priv)) { mutex_lock(&dev_priv->rps.hw_lock); - WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, 0xc0000000)); + WARN_ON(sandybridge_pcode_write(dev_priv, DISPLAY_IPS_CONTROL, + IPS_ENABLE | IPS_PCODE_CONTROL)); mutex_unlock(&dev_priv->rps.hw_lock); /* Quoting Art Runyan: "its not safe to expect any particular * value in IPS_CTL bit 31 after enabling IPS through the |