1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h
index c6454cca0447..9e7f259346e1 100644
--- a/include/linux/amba/bus.h
+++ b/include/linux/amba/bus.h
@@ -18,6 +18,7 @@
 #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
@@ -28,6 +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];
@@ -71,6 +73,12 @@ 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_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)