From mboxrd@z Thu Jan 1 00:00:00 1970 From: sboyd@codeaurora.org (Stephen Boyd) Date: Mon, 23 Dec 2013 12:46:00 -0800 Subject: [PATCH v2 4/7] mfd: ssbi: Add regmap read/write helpers In-Reply-To: <1387831563-13535-1-git-send-email-sboyd@codeaurora.org> References: <1387831563-13535-1-git-send-email-sboyd@codeaurora.org> Message-ID: <1387831563-13535-5-git-send-email-sboyd@codeaurora.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 Signed-off-by: Stephen Boyd --- 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