staging: ion: rockchip: remove unused feature

Remove codes related to:
- DRM
- secure
- psci

They are only required by part of platforms.

Change-Id: Ie03d2637971cdd9fad87b3a5b473566ebc94ac80
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>

drivers/staging/android/ion/rockchip/rockchip_ion.c

@@ -32,7 +32,6 @@
 #endif
 
 #include <linux/compat.h>
-#include <linux/rockchip/psci.h>
 
 struct ion_device *rockchip_ion_dev;
 EXPORT_SYMBOL(rockchip_ion_dev);
@@ -51,9 +50,7 @@ extern struct ion_handle *ion_handle_get_by_id(struct ion_client *client,
 extern int ion_handle_put(struct ion_handle *handle);
 
 #define ION_CMA_HEAP_NAME		"cma"
-#define ION_IOMMU_HEAP_NAME		"iommu"
 #define ION_VMALLOC_HEAP_NAME		"vmalloc"
-#define ION_DRM_HEAP_NAME		"drm"
 #define ION_CARVEOUT_HEAP_NAME		"carveout"
 
 #define MAX_ION_HEAP		10
@@ -75,11 +72,6 @@ static struct ion_heap_desc ion_heap_meta[] = {
 		.type	= ION_HEAP_TYPE_DMA,
 		.name	= ION_CMA_HEAP_NAME,
 	},
-	{
-		.id 	= ION_DRM_HEAP_ID,
-		.type	= ION_HEAP_TYPE_DRM,
-		.name	= ION_DRM_HEAP_NAME,
-	},
 	{
 		.id 	= ION_CARVEOUT_HEAP_ID,
 		.type	= ION_HEAP_TYPE_CARVEOUT,
@@ -118,22 +110,6 @@ struct ion_client *rockchip_ion_client_create(const char *name)
 }
 EXPORT_SYMBOL(rockchip_ion_client_create);
 
-static int rockchip_ion_set_secured(struct ion_client *client,
-				    unsigned long arg)
-{
-	bool val = 0;
-	int ret = 0;
-
-	if (copy_from_user(&val, (void __user *)arg, sizeof(bool)))
-		return -EFAULT;
-
-	ret = psci_set_memory_secure(val);
-	if (ret)
-		pr_err("%s fail to set memory secured (%d)\n", __func__, ret);
-
-	return ret;
-}
-
 #ifdef CONFIG_COMPAT
 struct compat_ion_phys_data {
 	compat_int_t handle;
@@ -244,8 +220,6 @@ static long rockchip_custom_ioctl (struct ion_client *client, unsigned int cmd,
 		switch (cmd) {
 		case ION_IOC_GET_PHYS:
 			return rockchip_ion_get_phys(client, arg);
-		case ION_IOC_SET_SECURED:
-			return rockchip_ion_set_secured(client, arg);
 		default:
 			return -ENOTTY;
 		}

include/linux/rockchip_ion.h

@@ -31,7 +31,6 @@ enum ion_heap_ids {
        ION_VMALLOC_HEAP_ID = 0,
        ION_CARVEOUT_HEAP_ID = 2,
        ION_CMA_HEAP_ID = 4,
-       ION_DRM_HEAP_ID = 5,
 };
 
 #define ION_HEAP(bit) (1 << (bit))
@@ -49,8 +48,4 @@ struct ion_phys_data {
  */
 #define ION_IOC_GET_PHYS	_IOWR(ION_IOC_ROCKCHIP_MAGIC, 0, \
 						struct ion_phys_data)
-/**
- * Set memory region secured.
- */
-#define ION_IOC_SET_SECURED	_IOWR(ION_IOC_ROCKCHIP_MAGIC, 1, bool)
 #endif