From 559c04f6f116075a1ebead411666c7ab47dcc7fe Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Wed, 26 Feb 2014 10:59:22 -0800 Subject: [PATCH] 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: Stephen Boyd Signed-off-by: Lee Jones --- include/linux/ssbi.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/include/linux/ssbi.h b/include/linux/ssbi.h index bcbb642a7641..087b08a4d333 100644 --- a/include/linux/ssbi.h +++ b/include/linux/ssbi.h @@ -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 -- 2.20.1