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author | Patrik Jakobsson <patrik.r.jakobsson@gmail.com> | 2013-09-16 16:02:40 (GMT) |
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committer | Patrik Jakobsson <patrik.r.jakobsson@gmail.com> | 2013-11-08 15:22:07 (GMT) |
commit | 2657929d4e7c0a4db5456cc2c9a230a68b07813d (patch) | |
tree | bf99015bc496aac0dc1a53b335b12d484ea7cd22 | |
parent | cf8efd3afeff02fed2e2937ab3006618919bf65a (diff) | |
download | linux-fsl-qoriq-2657929d4e7c0a4db5456cc2c9a230a68b07813d.tar.xz |
drm/gma500: Add support for aux pci vdc device
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
-rw-r--r-- | drivers/gpu/drm/gma500/psb_drv.c | 32 | ||||
-rw-r--r-- | drivers/gpu/drm/gma500/psb_drv.h | 21 |
2 files changed, 51 insertions, 2 deletions
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c index 679f953..1199180 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); diff --git a/drivers/gpu/drm/gma500/psb_drv.h b/drivers/gpu/drm/gma500/psb_drv.h index fd93756..dc7a8de 100644 --- a/drivers/gpu/drm/gma500/psb_drv.h +++ b/drivers/gpu/drm/gma500/psb_drv.h @@ -75,6 +75,7 @@ enum { * PCI resource identifiers */ #define PSB_MMIO_RESOURCE 0 +#define PSB_AUX_RESOURCE 0 #define PSB_GATT_RESOURCE 2 #define PSB_GTT_RESOURCE 3 /* @@ -455,6 +456,7 @@ struct psb_ops; struct drm_psb_private { struct drm_device *dev; + struct pci_dev *aux_pdev; /* Currently only used by mrst */ const struct psb_ops *ops; const struct psb_offset *regmap; @@ -486,6 +488,7 @@ struct drm_psb_private { uint8_t __iomem *sgx_reg; uint8_t __iomem *vdc_reg; + uint8_t __iomem *aux_reg; /* Auxillary vdc pipe regs */ uint32_t gatt_free_offset; /* @@ -532,6 +535,7 @@ struct drm_psb_private { /* gmbus */ struct intel_gmbus *gmbus; + uint8_t __iomem *gmbus_reg; /* Used by SDVO */ int crt_ddc_pin; @@ -928,16 +932,31 @@ static inline uint32_t REGISTER_READ(struct drm_device *dev, uint32_t reg) return ioread32(dev_priv->vdc_reg + reg); } +static inline uint32_t REGISTER_READ_AUX(struct drm_device *dev, uint32_t reg) +{ + struct drm_psb_private *dev_priv = dev->dev_private; + return ioread32(dev_priv->aux_reg + reg); +} + #define REG_READ(reg) REGISTER_READ(dev, (reg)) +#define REG_READ_AUX(reg) REGISTER_READ_AUX(dev, (reg)) static inline void REGISTER_WRITE(struct drm_device *dev, uint32_t reg, - uint32_t val) + uint32_t val) { struct drm_psb_private *dev_priv = dev->dev_private; iowrite32((val), dev_priv->vdc_reg + (reg)); } +static inline void REGISTER_WRITE_AUX(struct drm_device *dev, uint32_t reg, + uint32_t val) +{ + struct drm_psb_private *dev_priv = dev->dev_private; + iowrite32((val), dev_priv->aux_reg + (reg)); +} + #define REG_WRITE(reg, val) REGISTER_WRITE(dev, (reg), (val)) +#define REG_WRITE_AUX(reg, val) REGISTER_WRITE_AUX(dev, (reg), (val)) static inline void REGISTER_WRITE16(struct drm_device *dev, uint32_t reg, uint32_t val) |