[PATCH v2 4/7] mfd: ssbi: Add regmap read/write helpers
From: Stephen Boyd <hidden>
Date: 2013-12-23 20:46:14
Also in:
linux-arm-msm, lkml
Subsystem:
arm/qualcomm mailing list, multifunction devices (mfd), the rest · Maintainers:
Lee Jones, Linus Torvalds
Add read and write helper functions that the pm8921-core driver can use to read and write ssbi regsiters via a "no-bus" regmap. Cc: Mark Brown <broonie@kernel.org> Signed-off-by: Stephen Boyd <redacted> --- drivers/mfd/ssbi.c | 13 +++++++++++++ include/linux/ssbi.h | 3 +++ 2 files changed, 16 insertions(+)
diff --git a/drivers/mfd/ssbi.c b/drivers/mfd/ssbi.c
index b78942e..c5d270f 100644
--- a/drivers/mfd/ssbi.c
+++ b/drivers/mfd/ssbi.c@@ -269,6 +269,19 @@ int ssbi_write(struct device *dev, u16 addr, const u8 *buf, int len) } EXPORT_SYMBOL_GPL(ssbi_write); +int ssbi_reg_read(void *context, unsigned int reg, unsigned int *val) +{ + *val = 0; + return ssbi_read(context, reg, (u8 *)val, 1); +} +EXPORT_SYMBOL_GPL(ssbi_reg_read); + +int ssbi_reg_write(void *context, unsigned int reg, unsigned int val) +{ + return ssbi_write(context, reg, (u8 *)&val, 1); +} +EXPORT_SYMBOL_GPL(ssbi_reg_write); + static int ssbi_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node;
diff --git a/include/linux/ssbi.h b/include/linux/ssbi.h
index bcbb642..b862f3d 100644
--- a/include/linux/ssbi.h
+++ b/include/linux/ssbi.h@@ -20,4 +20,7 @@ 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); +int ssbi_reg_read(void *context, unsigned int reg, unsigned int *val); +int ssbi_reg_write(void *context, unsigned int reg, unsigned int val); + #endif
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation