diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_pps.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_pps.c | 34 |
1 files changed, 25 insertions, 9 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_pps.c b/drivers/gpu/drm/i915/display/intel_pps.c index 77b0a4f27abc9..d18c1c58dfcfe 100644 --- a/drivers/gpu/drm/i915/display/intel_pps.c +++ b/drivers/gpu/drm/i915/display/intel_pps.c @@ -327,6 +327,18 @@ static int intel_num_pps(struct drm_i915_private *i915) return 1; } +static bool intel_pps_is_valid(struct intel_dp *intel_dp) +{ + struct drm_i915_private *i915 = dp_to_i915(intel_dp); + + if (intel_dp->pps.pps_idx == 1 && + INTEL_PCH_TYPE(i915) >= PCH_ICP && + INTEL_PCH_TYPE(i915) < PCH_MTP) + return intel_de_read(i915, SOUTH_CHICKEN1) & ICP_SECOND_PPS_IO_SELECT; + + return true; +} + static int bxt_initial_pps_idx(struct drm_i915_private *i915, pps_check check) { @@ -340,7 +352,7 @@ bxt_initial_pps_idx(struct drm_i915_private *i915, pps_check check) return -1; } -static void +static bool pps_initial_setup(struct intel_dp *intel_dp) { struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base; @@ -351,7 +363,7 @@ pps_initial_setup(struct intel_dp *intel_dp) if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915)) { vlv_initial_power_sequencer_setup(intel_dp); - return; + return true; } /* first ask the VBT */ @@ -377,13 +389,14 @@ pps_initial_setup(struct intel_dp *intel_dp) "[ENCODER:%d:%s] no initial power sequencer, assuming %d\n", encoder->base.base.id, encoder->base.name, intel_dp->pps.pps_idx); - return; + } else { + drm_dbg_kms(&i915->drm, + "[ENCODER:%d:%s] initial power sequencer: %d\n", + encoder->base.base.id, encoder->base.name, + intel_dp->pps.pps_idx); } - drm_dbg_kms(&i915->drm, - "[ENCODER:%d:%s] initial power sequencer: %d\n", - encoder->base.base.id, encoder->base.name, - intel_dp->pps.pps_idx); + return intel_pps_is_valid(intel_dp); } void intel_pps_reset_all(struct drm_i915_private *dev_priv) @@ -1504,9 +1517,10 @@ void intel_pps_encoder_reset(struct intel_dp *intel_dp) } } -void intel_pps_init(struct intel_dp *intel_dp) +bool intel_pps_init(struct intel_dp *intel_dp) { intel_wakeref_t wakeref; + bool ret; intel_dp->pps.initializing = true; INIT_DELAYED_WORK(&intel_dp->pps.panel_vdd_work, edp_panel_vdd_work); @@ -1514,12 +1528,14 @@ void intel_pps_init(struct intel_dp *intel_dp) pps_init_timestamps(intel_dp); with_intel_pps_lock(intel_dp, wakeref) { - pps_initial_setup(intel_dp); + ret = pps_initial_setup(intel_dp); pps_init_delays(intel_dp); pps_init_registers(intel_dp, false); pps_vdd_init(intel_dp); } + + return ret; } static void pps_init_late(struct intel_dp *intel_dp) |