Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson at gmail.com>
---
drivers/gpu/drm/gma500/psb_drv.c | 32 +++++++++++++++++++++++++++++++-
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)
--
1.8.3.2
