From 609e97fe31a4d1acf7bc0411277e43a4de13db44 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Sat, 14 Dec 2019 23:10:09 +0100 Subject: rtc: rv3029: remove open coded regmap_update_bits rv3029_update_bits open codes regmap_update_bits and forgets to properly lock the register range while doing so. Use regmap_update_bits instead. Link: https://lore.kernel.org/r/20191214221022.622482-4-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni --- drivers/rtc/rtc-rv3029c2.c | 26 ++++++-------------------- 1 file changed, 6 insertions(+), 20 deletions(-) (limited to 'drivers/rtc') diff --git a/drivers/rtc/rtc-rv3029c2.c b/drivers/rtc/rtc-rv3029c2.c index 09433d4a86e3..9a0397f3dee9 100644 --- a/drivers/rtc/rtc-rv3029c2.c +++ b/drivers/rtc/rtc-rv3029c2.c @@ -137,23 +137,6 @@ static int rv3029_write_regs(struct device *dev, u8 reg, u8 const buf[], return regmap_bulk_write(rv3029->regmap, reg, buf, len); } -static int rv3029_update_bits(struct device *dev, u8 reg, u8 mask, u8 set) -{ - u8 buf; - int ret; - - ret = rv3029_read_regs(dev, reg, &buf, 1); - if (ret < 0) - return ret; - buf &= ~mask; - buf |= set & mask; - ret = rv3029_write_regs(dev, reg, &buf, 1); - if (ret < 0) - return ret; - - return 0; -} - static int rv3029_get_sr(struct device *dev, u8 *buf) { int ret = rv3029_read_regs(dev, RV3029_STATUS, buf, 1); @@ -200,14 +183,17 @@ static int rv3029_eeprom_busywait(struct device *dev) static int rv3029_eeprom_exit(struct device *dev) { + struct rv3029_data *rv3029 = dev_get_drvdata(dev); + /* Re-enable eeprom refresh */ - return rv3029_update_bits(dev, RV3029_ONOFF_CTRL, + return regmap_update_bits(rv3029->regmap, RV3029_ONOFF_CTRL, RV3029_ONOFF_CTRL_EERE, RV3029_ONOFF_CTRL_EERE); } static int rv3029_eeprom_enter(struct device *dev) { + struct rv3029_data *rv3029 = dev_get_drvdata(dev); int ret; u8 sr; @@ -236,8 +222,8 @@ static int rv3029_eeprom_enter(struct device *dev) } /* Disable eeprom refresh. */ - ret = rv3029_update_bits(dev, RV3029_ONOFF_CTRL, RV3029_ONOFF_CTRL_EERE, - 0); + ret = regmap_update_bits(rv3029->regmap, RV3029_ONOFF_CTRL, + RV3029_ONOFF_CTRL_EERE, 0); if (ret < 0) return ret; -- cgit v1.2.3-59-g8ed1b