diff options
| author | Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> | 2017-06-02 13:06:40 -0700 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2017-06-02 13:57:06 -0700 |
| commit | ec7e0bb35f8d339b51b440b5fc525618784f11f4 (patch) | |
| tree | 6890c5f0ad08f6ed7d6348550030472aed9dd71f /drivers/gpu/drm/i915/i915_drv.c | |
| parent | 7b22b8c402c8ee26dd4dc1474887a2a91961e766 (diff) | |
| download | linux-ec7e0bb35f8d339b51b440b5fc525618784f11f4.tar.gz | |
drm/i915/cnp: Add PCI ID for Cannonpoint LP PCH
The first two bytes of PCI ID for CNP_LP PCH are the same as that of
SPT_LP. We should really be looking at the first 9 bits instead of the
first 8 to identify platforms, although this seems to have not caused any
problems on earlier platforms. Introduce a 9 bit extended mask for SPT and
CNP while not touching the code for any of the other platforms.
v2: (Rodrigo) Make platform agnostic and fix commit message.
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1496434004-29812-2-git-send-email-rodrigo.vivi@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 9e4c13ed795d..90b646c51759 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -170,6 +170,9 @@ static void intel_detect_pch(struct drm_i915_private *dev_priv) while ((pch = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, pch))) { if (pch->vendor == PCI_VENDOR_ID_INTEL) { unsigned short id = pch->device & INTEL_PCH_DEVICE_ID_MASK; + unsigned short id_ext = pch->device & + INTEL_PCH_DEVICE_ID_MASK_EXT; + dev_priv->pch_id = id; if (id == INTEL_PCH_IBX_DEVICE_ID_TYPE) { @@ -206,7 +209,7 @@ static void intel_detect_pch(struct drm_i915_private *dev_priv) DRM_DEBUG_KMS("Found SunrisePoint PCH\n"); WARN_ON(!IS_SKYLAKE(dev_priv) && !IS_KABYLAKE(dev_priv)); - } else if (id == INTEL_PCH_SPT_LP_DEVICE_ID_TYPE) { + } else if (id_ext == INTEL_PCH_SPT_LP_DEVICE_ID_TYPE) { dev_priv->pch_type = PCH_SPT; DRM_DEBUG_KMS("Found SunrisePoint LP PCH\n"); WARN_ON(!IS_SKYLAKE(dev_priv) && @@ -219,6 +222,9 @@ static void intel_detect_pch(struct drm_i915_private *dev_priv) } else if (id == INTEL_PCH_CNP_DEVICE_ID_TYPE) { dev_priv->pch_type = PCH_CNP; DRM_DEBUG_KMS("Found CannonPoint PCH\n"); + } else if (id_ext == INTEL_PCH_CNP_LP_DEVICE_ID_TYPE) { + dev_priv->pch_type = PCH_CNP; + DRM_DEBUG_KMS("Found CannonPoint LP PCH\n"); } else if ((id == INTEL_PCH_P2X_DEVICE_ID_TYPE) || (id == INTEL_PCH_P3X_DEVICE_ID_TYPE) || ((id == INTEL_PCH_QEMU_DEVICE_ID_TYPE) && |