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Commit 559c04f6 authored by Stephen Boyd's avatar Stephen Boyd Committed by Lee Jones
Browse files

mfd: ssbi: Add regmap read/write helpers 



Add read and write helper functions that the pm8921-core driver
can use to read and write ssbi registers via a "no-bus" regmap.

Signed-off-by: default avatarStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent dc1a95cc

include/linux/ssbi.h

+20 −0
Original line number Diff line number Diff line
@@ -20,4 +20,24 @@ 
int ssbi_write(struct device *dev, u16 addr, const u8 *buf, int len);

int ssbi_read(struct device *dev, u16 addr, u8 *buf, int len);



static inline int

ssbi_reg_read(void *context, unsigned int reg, unsigned int *val)

{

	int ret;

	u8 v;



	ret = ssbi_read(context, reg, &v, 1);

	if (!ret)

		*val = v;



	return ret;

}



static inline int

ssbi_reg_write(void *context, unsigned int reg, unsigned int val)

{

	u8 v = val;

	return ssbi_write(context, reg, &v, 1);

}



#endif