diff options
| author | Jani Nikula <jani.nikula@intel.com> | 2018-06-08 15:33:28 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2018-06-11 10:21:12 +0300 |
| commit | 85b17e6e4d3f288cc757ff5407b2ca6604673d74 (patch) | |
| tree | 38d0d0144f73e941e2931176fb626b95b923070b /drivers/gpu/drm/i915/i915_drv.c | |
| parent | b8bf31d82d22ee06e7bb4802c2ce93ccb4b8ee5b (diff) | |
drm/i915: clean up virtual PCH special case handling
Use intel_pch_type() also for mapping the no PCH case (PCH id 0) to
PCH_NONE to simplify code.
Also make sure that intel_pch_type() knows all the PCH ids returned by
intel_virt_detect_pch(). Loudly fail if this isn't the case; this
shouldn't happen anyway.
Cc: Colin Xu <Colin.Xu@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Colin Xu <Colin.Xu@intel.com>
Reviewed-by: Colin Xu <Colin.Xu@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180608123330.31003-4-jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 8f22ae8925fc..9aba419e5d8b 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -284,13 +284,12 @@ static void intel_detect_pch(struct drm_i915_private *dev_priv) } else if (intel_is_virt_pch(id, pch->subsystem_vendor, pch->subsystem_device)) { id = intel_virt_detect_pch(dev_priv); - if (id) { - pch_type = intel_pch_type(dev_priv, id); - if (WARN_ON(pch_type == PCH_NONE)) - pch_type = PCH_NOP; - } else { - pch_type = PCH_NONE; - } + pch_type = intel_pch_type(dev_priv, id); + + /* Sanity check virtual PCH id */ + if (WARN_ON(id && pch_type == PCH_NONE)) + id = 0; + dev_priv->pch_type = pch_type; dev_priv->pch_id = id; break; |