drm: Add support for platform devices to register as DRM devices
Allow platform devices without PCI resources to be DRM devices.
[airlied: fixup warnings with dev pointers]
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 8f7f5cb..6235169 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -9,6 +9,7 @@
/*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * Copyright (c) 2009-2010, Code Aurora Forum.
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
@@ -48,6 +49,7 @@
#include <linux/proc_fs.h>
#include <linux/init.h>
#include <linux/file.h>
+#include <linux/platform_device.h>
#include <linux/pci.h>
#include <linux/jiffies.h>
#include <linux/smp_lock.h> /* For (un)lock_kernel */
@@ -144,6 +146,7 @@
#define DRIVER_IRQ_VBL2 0x800
#define DRIVER_GEM 0x1000
#define DRIVER_MODESET 0x2000
+#define DRIVER_USE_PLATFORM_DEVICE 0x4000
/***********************************************************************/
/** \name Begin the DRM... */
@@ -823,6 +826,7 @@
int num_ioctls;
struct file_operations fops;
struct pci_driver pci_driver;
+ struct platform_device *platform_device;
/* List of devices hanging off this driver */
struct list_head device_list;
};
@@ -1015,12 +1019,16 @@
struct drm_agp_head *agp; /**< AGP data */
+ struct device *dev; /**< Device structure */
struct pci_dev *pdev; /**< PCI device structure */
int pci_vendor; /**< PCI vendor id */
int pci_device; /**< PCI device id */
#ifdef __alpha__
struct pci_controller *hose;
#endif
+
+ struct platform_device *platformdev; /**< Platform device struture */
+
struct drm_sg_mem *sg; /**< Scatter gather memory */
int num_crtcs; /**< Number of CRTCs on this device */
void *dev_private; /**< device private data */
@@ -1060,17 +1068,21 @@
};
-static inline int drm_dev_to_irq(struct drm_device *dev)
-{
- return dev->pdev->irq;
-}
-
static __inline__ int drm_core_check_feature(struct drm_device *dev,
int feature)
{
return ((dev->driver->driver_features & feature) ? 1 : 0);
}
+
+static inline int drm_dev_to_irq(struct drm_device *dev)
+{
+ if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
+ return platform_get_irq(dev->platformdev, 0);
+ else
+ return dev->pdev->irq;
+}
+
#ifdef __alpha__
#define drm_get_pci_domain(dev) dev->hose->index
#else
@@ -1347,8 +1359,11 @@
struct drm_master *drm_master_create(struct drm_minor *minor);
extern struct drm_master *drm_master_get(struct drm_master *master);
extern void drm_master_put(struct drm_master **master);
-extern int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
- struct drm_driver *driver);
+extern int drm_get_pci_dev(struct pci_dev *pdev,
+ const struct pci_device_id *ent,
+ struct drm_driver *driver);
+extern int drm_get_platform_dev(struct platform_device *pdev,
+ struct drm_driver *driver);
extern void drm_put_dev(struct drm_device *dev);
extern int drm_put_minor(struct drm_minor **minor);
extern unsigned int drm_debug;
@@ -1525,6 +1540,9 @@
static __inline__ int drm_device_is_agp(struct drm_device *dev)
{
+ if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
+ return 0;
+
if (dev->driver->device_is_agp != NULL) {
int err = (*dev->driver->device_is_agp) (dev);
@@ -1538,7 +1556,10 @@
static __inline__ int drm_device_is_pcie(struct drm_device *dev)
{
- return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
+ if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
+ return 0;
+ else
+ return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
}
static __inline__ void drm_core_dropmap(struct drm_local_map *map)
@@ -1546,6 +1567,21 @@
}
#include "drm_mem_util.h"
+
+static inline void *drm_get_device(struct drm_device *dev)
+{
+ if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE))
+ return dev->platformdev;
+ else
+ return dev->pdev;
+}
+
+extern int drm_platform_init(struct drm_driver *driver);
+extern int drm_pci_init(struct drm_driver *driver);
+extern int drm_fill_in_dev(struct drm_device *dev,
+ const struct pci_device_id *ent,
+ struct drm_driver *driver);
+int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type);
/*@}*/
#endif /* __KERNEL__ */