rtc: ds1347: simplify getting .driver_data

Get 'driver_data' from 'struct device' directly. Going via spi_device is an
unnecessary step.

Link: https://lore.kernel.org/r/20191007134724.15505-4-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/rtc/rtc-ds1347.c b/drivers/rtc/rtc-ds1347.c
index 013c5df..06abf0b 100644 (file)
--- a/drivers/rtc/rtc-ds1347.c
+++ b/drivers/rtc/rtc-ds1347.c
@@ -43,13 +43,10 @@ static const struct regmap_access_table ds1347_access_table = {
 
 static int ds1347_read_time(struct device *dev, struct rtc_time *dt)
 {
-       struct spi_device *spi = to_spi_device(dev);
-       struct regmap *map;
+       struct regmap *map = dev_get_drvdata(dev);
        int err;
        unsigned char buf[8];
 
-       map = spi_get_drvdata(spi);
-
        err = regmap_bulk_read(map, DS1347_CLOCK_BURST, buf, 8);
        if (err)
                return err;
@@ -67,12 +64,9 @@ static int ds1347_read_time(struct device *dev, struct rtc_time *dt)
 
 static int ds1347_set_time(struct device *dev, struct rtc_time *dt)
 {
-       struct spi_device *spi = to_spi_device(dev);
-       struct regmap *map;
+       struct regmap *map = dev_get_drvdata(dev);
        unsigned char buf[8];
 
-       map = spi_get_drvdata(spi);
-
        buf[0] = bin2bcd(dt->tm_sec);
        buf[1] = bin2bcd(dt->tm_min);
        buf[2] = (bin2bcd(dt->tm_hour) & 0x3F);