diff options
| author | Jani Nikula <jani.nikula@intel.com> | 2018-06-08 15:33:30 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2018-06-11 10:21:30 +0300 |
| commit | 07ba0a82536e4955682b3b9077957ae1421d94bf (patch) | |
| tree | b376bb94f060250bcaba64c48d6ad8e99a921178 /drivers/gpu/drm/i915 | |
| parent | 13d0464b3240429234c34b39b819fe6f088fc3c8 (diff) | |
| download | linux-07ba0a82536e4955682b3b9077957ae1421d94bf.tar.xz | |
drm/i915: fix PCH_NOP setting for non-PCH platforms
Setting PCH type to PCH_NOP before checking whether we actually have a
PCH ends up returning true for HAS_PCH_SPLIT() on all non-PCH split
platforms. Fix this by using PCH_NOP only for platforms that actually
have a PCH.
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180608123330.31003-6-jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 9aba419e5d8b..d258388605d6 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -248,14 +248,6 @@ static void intel_detect_pch(struct drm_i915_private *dev_priv) { struct pci_dev *pch = NULL; - /* In all current cases, num_pipes is equivalent to the PCH_NOP setting - * (which really amounts to a PCH but no South Display). - */ - if (INTEL_INFO(dev_priv)->num_pipes == 0) { - dev_priv->pch_type = PCH_NOP; - return; - } - /* * The reason to probe ISA bridge instead of Dev31:Fun0 is to * make graphics device passthrough work easy for VMM, that only @@ -295,6 +287,17 @@ static void intel_detect_pch(struct drm_i915_private *dev_priv) break; } } + + /* + * Use PCH_NOP (PCH but no South Display) for PCH platforms without + * display. + */ + if (pch && INTEL_INFO(dev_priv)->num_pipes == 0) { + DRM_DEBUG_KMS("Display disabled, reverting to NOP PCH\n"); + dev_priv->pch_type = PCH_NOP; + dev_priv->pch_id = 0; + } + if (!pch) DRM_DEBUG_KMS("No PCH found.\n"); |