diff options
| author | Patrik Jakobsson <patrik.r.jakobsson@gmail.com> | 2013-09-16 18:02:40 +0200 |
|---|---|---|
| committer | Patrik Jakobsson <patrik.r.jakobsson@gmail.com> | 2013-11-08 16:22:07 +0100 |
| commit | 2657929d4e7c0a4db5456cc2c9a230a68b07813d (patch) | |
| tree | bf99015bc496aac0dc1a53b335b12d484ea7cd22 /drivers/gpu/drm/gma500/psb_drv.c | |
| parent | cf8efd3afeff02fed2e2937ab3006618919bf65a (diff) | |
| download | linux-2657929d4e7c0a4db5456cc2c9a230a68b07813d.tar.bz2 | |
drm/gma500: Add support for aux pci vdc device
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/gma500/psb_drv.c')
| -rw-r--r-- | drivers/gpu/drm/gma500/psb_drv.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c index 679f95313c29..1199180667c9 100644 --- a/drivers/gpu/drm/gma500/psb_drv.c +++ b/drivers/gpu/drm/gma500/psb_drv.c @@ -251,6 +251,12 @@ static int psb_driver_unload(struct drm_device *dev) iounmap(dev_priv->sgx_reg); dev_priv->sgx_reg = NULL; } + if (dev_priv->aux_reg) { + iounmap(dev_priv->aux_reg); + dev_priv->aux_reg = NULL; + } + if (dev_priv->aux_pdev) + pci_dev_put(dev_priv->aux_pdev); /* Destroy VBT data */ psb_intel_destroy_bios(dev); @@ -266,7 +272,7 @@ static int psb_driver_unload(struct drm_device *dev) static int psb_driver_load(struct drm_device *dev, unsigned long chipset) { struct drm_psb_private *dev_priv; - unsigned long resource_start; + unsigned long resource_start, resource_len; unsigned long irqflags; int ret = -ENOMEM; struct drm_connector *connector; @@ -296,6 +302,30 @@ static int psb_driver_load(struct drm_device *dev, unsigned long chipset) if (!dev_priv->sgx_reg) goto out_err; + if (IS_MRST(dev)) { + dev_priv->aux_pdev = pci_get_bus_and_slot(0, PCI_DEVFN(3, 0)); + + if (dev_priv->aux_pdev) { + resource_start = pci_resource_start(dev_priv->aux_pdev, + PSB_AUX_RESOURCE); + resource_len = pci_resource_len(dev_priv->aux_pdev, + PSB_AUX_RESOURCE); + dev_priv->aux_reg = ioremap_nocache(resource_start, + resource_len); + if (!dev_priv->aux_reg) + goto out_err; + + DRM_DEBUG_KMS("Found aux vdc"); + } else { + /* Couldn't find the aux vdc so map to primary vdc */ + dev_priv->aux_reg = dev_priv->vdc_reg; + DRM_DEBUG_KMS("Couldn't find aux pci device"); + } + dev_priv->gmbus_reg = dev_priv->aux_reg; + } else { + dev_priv->gmbus_reg = dev_priv->vdc_reg; + } + psb_intel_opregion_setup(dev); ret = dev_priv->ops->chip_setup(dev); |