1 files changed, 25 insertions, 6 deletions

diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h
index b0c174012436..fcbbe71a3cc1 100644
--- a/include/linux/amba/bus.h
+++ b/include/linux/amba/bus.h
@@ -18,8 +18,10 @@
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/resource.h>
+#include <linux/regulator/consumer.h>
 
 #define AMBA_NR_IRQS    2
+#define AMBA_CID        0xb105f00d
 
 struct clk;
 
@@ -27,6 +29,7 @@ struct amba_device {
         struct device           dev;
         struct resource         res;
         struct clk              *pclk;
+        struct regulator        *vcore;
         u64                     dma_mask;
         unsigned int            periphid;
         unsigned int            irq[AMBA_NR_IRQS];
@@ -40,12 +43,12 @@ struct amba_id {
 
 struct amba_driver {
         struct device_driver    drv;
-        int                     (*probe)(struct amba_device *, struct amba_id *);
+        int                     (*probe)(struct amba_device *, const struct amba_id *);
         int                     (*remove)(struct amba_device *);
         void                    (*shutdown)(struct amba_device *);
         int                     (*suspend)(struct amba_device *, pm_message_t);
         int                     (*resume)(struct amba_device *);
-        struct amba_id          *id_table;
+        const struct amba_id    *id_table;
 };
 
 enum amba_vendor {
@@ -53,6 +56,10 @@ enum amba_vendor {
         AMBA_VENDOR_ST = 0x80,
 };
 
+extern struct bus_type amba_bustype;
+
+#define to_amba_device(d)       container_of(d, struct amba_device, dev)
+
 #define amba_get_drvdata(d)     dev_get_drvdata(&d->dev)
 #define amba_set_drvdata(d,p)   dev_set_drvdata(&d->dev, p)
 
@@ -70,9 +77,21 @@ void amba_release_regions(struct amba_device *);
 #define amba_pclk_disable(d)    \
         do { if (!IS_ERR((d)->pclk)) clk_disable((d)->pclk); } while (0)
 
-#define amba_config(d)  (((d)->periphid >> 24) & 0xff)
-#define amba_rev(d)     (((d)->periphid >> 20) & 0x0f)
-#define amba_manf(d)    (((d)->periphid >> 12) & 0xff)
-#define amba_part(d)    ((d)->periphid & 0xfff)
+#define amba_vcore_enable(d)    \
+        (IS_ERR((d)->vcore) ? 0 : regulator_enable((d)->vcore))
+
+#define amba_vcore_disable(d)   \
+        do { if (!IS_ERR((d)->vcore)) regulator_disable((d)->vcore); } while (0)
+
+/* Some drivers don't use the struct amba_device */
+#define AMBA_CONFIG_BITS(a) (((a) >> 24) & 0xff)
+#define AMBA_REV_BITS(a) (((a) >> 20) & 0x0f)
+#define AMBA_MANF_BITS(a) (((a) >> 12) & 0xff)
+#define AMBA_PART_BITS(a) ((a) & 0xfff)
+
+#define amba_config(d)  AMBA_CONFIG_BITS((d)->periphid)
+#define amba_rev(d)     AMBA_REV_BITS((d)->periphid)
+#define amba_manf(d)    AMBA_MANF_BITS((d)->periphid)
+#define amba_part(d)    AMBA_PART_BITS((d)->periphid)
 
 #endif