diff options
| author |  Imre Deak <imre.deak@intel.com>
| 2019-05-31 11:26:26 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com>
| 2019-06-01 18:15:37 +0300 |
| commit | 912348b64d091a53c6c25c2a5486bae966f8b379 (patch) | |
| tree | cc923b5a3eb5bddbd47a78860e198a8f56fb799d /drivers | |
| parent | drm/i915: Report all objects with allocated pages to the shrinker (diff) | |
| download | linux-912348b64d091a53c6c25c2a5486bae966f8b379.tar.gz linux-912348b64d091a53c6c25c2a5486bae966f8b379.tar.bz2 linux-912348b64d091a53c6c25c2a5486bae966f8b379.zip | |
drm/i915/icl: Ensure port A combo PHY HW state is correct
Make sure the HW state of the port A combo PHY is correct wrt. the
IREFGEN setting. This will force a reprogramming during init or a WARN
during uninit if the setting is incorrect.
On my ICL RVP I haven't seen this check failing and leading to a forced
reinit/WARN, but let's add it still for consistency.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190531082626.30640-1-imre.deak@intel.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_combo_phy.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_combo_phy.c b/drivers/gpu/drm/i915/intel_combo_phy.c index 98213cc58736..841708da5a56 100644 --- a/drivers/gpu/drm/i915/intel_combo_phy.c +++ b/drivers/gpu/drm/i915/intel_combo_phy.c @@ -198,6 +198,10 @@ static bool icl_combo_phy_verify_state(struct drm_i915_private *dev_priv, ret = cnl_verify_procmon_ref_values(dev_priv, port); + if (port == PORT_A) + ret &= check_phy_reg(dev_priv, port, ICL_PORT_COMP_DW8(port), + IREFGEN, IREFGEN); + ret &= check_phy_reg(dev_priv, port, ICL_PORT_CL_DW5(port), CL_POWER_DOWN_ENABLE, CL_POWER_DOWN_ENABLE); |