diff options
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-v3020.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/rtc/rtc-v3020.c b/drivers/rtc/rtc-v3020.c index 3b58d3d5d38a..a6b572978dc0 100644 --- a/drivers/rtc/rtc-v3020.c +++ b/drivers/rtc/rtc-v3020.c @@ -26,6 +26,7 @@ #include <linux/types.h> #include <linux/bcd.h> #include <linux/rtc-v3020.h> +#include <linux/delay.h> #include <asm/io.h> @@ -47,6 +48,7 @@ static void v3020_set_reg(struct v3020 *chip, unsigned char address, for (i = 0; i < 4; i++) { writel((tmp & 1) << chip->leftshift, chip->ioaddress); tmp >>= 1; + udelay(1); } /* Commands dont have data */ @@ -54,6 +56,7 @@ static void v3020_set_reg(struct v3020 *chip, unsigned char address, for (i = 0; i < 8; i++) { writel((data & 1) << chip->leftshift, chip->ioaddress); data >>= 1; + udelay(1); } } } @@ -66,12 +69,14 @@ static unsigned char v3020_get_reg(struct v3020 *chip, unsigned char address) for (i = 0; i < 4; i++) { writel((address & 1) << chip->leftshift, chip->ioaddress); address >>= 1; + udelay(1); } for (i = 0; i < 8; i++) { data >>= 1; if (readl(chip->ioaddress) & (1 << chip->leftshift)) data |= 0x80; + udelay(1); } return data; @@ -95,7 +100,7 @@ static int v3020_read_time(struct device *dev, struct rtc_time *dt) tmp = v3020_get_reg(chip, V3020_MONTH_DAY); dt->tm_mday = BCD2BIN(tmp); tmp = v3020_get_reg(chip, V3020_MONTH); - dt->tm_mon = BCD2BIN(tmp); + dt->tm_mon = BCD2BIN(tmp) - 1; tmp = v3020_get_reg(chip, V3020_WEEK_DAY); dt->tm_wday = BCD2BIN(tmp); tmp = v3020_get_reg(chip, V3020_YEAR); @@ -135,7 +140,7 @@ static int v3020_set_time(struct device *dev, struct rtc_time *dt) v3020_set_reg(chip, V3020_MINUTES, BIN2BCD(dt->tm_min)); v3020_set_reg(chip, V3020_HOURS, BIN2BCD(dt->tm_hour)); v3020_set_reg(chip, V3020_MONTH_DAY, BIN2BCD(dt->tm_mday)); - v3020_set_reg(chip, V3020_MONTH, BIN2BCD(dt->tm_mon)); + v3020_set_reg(chip, V3020_MONTH, BIN2BCD(dt->tm_mon + 1)); v3020_set_reg(chip, V3020_WEEK_DAY, BIN2BCD(dt->tm_wday)); v3020_set_reg(chip, V3020_YEAR, BIN2BCD(dt->tm_year % 100)); |