Commit 63bef547 authored by Mark Brown's avatar Mark Brown Committed by Russell King

[ARM] 5224/2: PXA SSP: Introduce register accessors

Introduce accessors for the SSP registers so that drivers don't need to
open code offsets from the MMIO base.
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: default avatarEric Miao <eric.miao@marvell.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent e7d48fa2
...@@ -20,6 +20,7 @@ ...@@ -20,6 +20,7 @@
#define __ASM_ARCH_SSP_H #define __ASM_ARCH_SSP_H
#include <linux/list.h> #include <linux/list.h>
#include <linux/io.h>
enum pxa_ssp_type { enum pxa_ssp_type {
SSP_UNDEFINED = 0, SSP_UNDEFINED = 0,
...@@ -78,6 +79,29 @@ int ssp_init(struct ssp_dev *dev, u32 port, u32 init_flags); ...@@ -78,6 +79,29 @@ int ssp_init(struct ssp_dev *dev, u32 port, u32 init_flags);
int ssp_config(struct ssp_dev *dev, u32 mode, u32 flags, u32 psp_flags, u32 speed); int ssp_config(struct ssp_dev *dev, u32 mode, u32 flags, u32 psp_flags, u32 speed);
void ssp_exit(struct ssp_dev *dev); void ssp_exit(struct ssp_dev *dev);
/**
* ssp_write_reg - Write to a SSP register
*
* @dev: SSP device to access
* @reg: Register to write to
* @val: Value to be written.
*/
static inline void ssp_write_reg(struct ssp_device *dev, u32 reg, u32 val)
{
__raw_writel(val, dev->mmio_base + reg);
}
/**
* ssp_read_reg - Read from a SSP register
*
* @dev: SSP device to access
* @reg: Register to read from
*/
static inline u32 ssp_read_reg(struct ssp_device *dev, u32 reg)
{
return __raw_readl(dev->mmio_base + reg);
}
struct ssp_device *ssp_request(int port, const char *label); struct ssp_device *ssp_request(int port, const char *label);
void ssp_free(struct ssp_device *); void ssp_free(struct ssp_device *);
#endif /* __ASM_ARCH_SSP_H */ #endif /* __ASM_ARCH_SSP_H */
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