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rtc: rv3029: get rid of rv3029_get_sr 

There is no point in having 2 indirections before calling regmap_read,
especially since rv3029_get_sr also changes the return value without any
good reason. Call regmap_read directly.

Link: https://lore.kernel.org/r/20191214221022.622482-7-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Alexandre Belloni 2019-12-14 23:10:12 +01:00
parent 35c2daaf55
commit bb72dbba83
1 changed files with 10 additions and 19 deletions
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29
drivers/rtc/rtc-rv3029c2.c
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@ -137,23 +137,13 @@ 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_get_sr(struct device *dev, u8 *buf)
{
int ret = rv3029_read_regs(dev, RV3029_STATUS, buf, 1);
if (ret < 0)
return -EIO;
dev_dbg(dev, "status = 0x%.2x (%d)\n", buf[0], buf[0]);
return 0;
}
static int rv3029_eeprom_busywait(struct device *dev)
static int rv3029_eeprom_busywait(struct rv3029_data *rv3029)
{
unsigned int sr;
int i, ret;
u8 sr;
for (i = 100; i > 0; i--) {
ret = rv3029_get_sr(dev, &sr);
ret = regmap_read(rv3029->regmap, RV3029_STATUS, &sr);
if (ret < 0)
break;
if (!(sr & RV3029_STATUS_EEBUSY))
@ -161,7 +151,7 @@ static int rv3029_eeprom_busywait(struct device *dev)
usleep_range(1000, 10000);
}
if (i <= 0) {
dev_err(dev, "EEPROM busy wait timeout.\n");
dev_err(rv3029->dev, "EEPROM busy wait timeout.\n");
return -ETIMEDOUT;
}
@ -181,11 +171,11 @@ static int rv3029_eeprom_exit(struct device *dev)
static int rv3029_eeprom_enter(struct device *dev)
{
struct rv3029_data *rv3029 = dev_get_drvdata(dev);
unsigned int sr;
int ret;
u8 sr;
/* Check whether we are in the allowed voltage range. */
ret = rv3029_get_sr(dev, &sr);
ret = regmap_read(rv3029->regmap, RV3029_STATUS, &sr);
if (ret < 0)
return ret;
if (sr & (RV3029_STATUS_VLOW1 | RV3029_STATUS_VLOW2)) {
@ -198,7 +188,7 @@ static int rv3029_eeprom_enter(struct device *dev)
if (ret < 0)
return ret;
usleep_range(1000, 10000);
ret = rv3029_get_sr(dev, &sr);
ret = regmap_read(rv3029->regmap, RV3029_STATUS, &sr);
if (ret < 0)
return ret;
if (sr & (RV3029_STATUS_VLOW1 | RV3029_STATUS_VLOW2)) {
@ -215,7 +205,7 @@ static int rv3029_eeprom_enter(struct device *dev)
return ret;
/* Wait for any previous eeprom accesses to finish. */
ret = rv3029_eeprom_busywait(dev);
ret = rv3029_eeprom_busywait(rv3029);
if (ret < 0)
rv3029_eeprom_exit(dev);
@ -243,6 +233,7 @@ static int rv3029_eeprom_read(struct device *dev, u8 reg,
static int rv3029_eeprom_write(struct device *dev, u8 reg,
u8 const buf[], size_t len)
{
struct rv3029_data *rv3029 = dev_get_drvdata(dev);
int ret, err;
size_t i;
u8 tmp;
@ -260,7 +251,7 @@ static int rv3029_eeprom_write(struct device *dev, u8 reg,
if (ret < 0)
break;
}
ret = rv3029_eeprom_busywait(dev);
ret = rv3029_eeprom_busywait(rv3029);
if (ret < 0)
break;
}