This change facilitates the conversion of m41t62 RTC driver to device
model (DM).
Signed-off-by: Lukasz Majewski <lu...@denx.de>
---
Changes in v2:
- New patch
Changes in v1: None
drivers/rtc/m41t62.c | 32 ++++++++++++++++++++------------
1 file changed, 20 insertions(+), 12 deletions(-)
diff --git a/drivers/rtc/m41t62.c b/drivers/rtc/m41t62.c
index cc230e2b78..94f2e0f332 100644
--- a/drivers/rtc/m41t62.c
+++ b/drivers/rtc/m41t62.c
@@ -49,12 +49,8 @@
#define M41T80_ALHOUR_HT (1 << 6) /* HT: Halt Update Bit */
-int rtc_get(struct rtc_time *tm)
+static void m41t62_update_rtc_time(struct rtc_time *tm, u8 *buf)
{
- u8 buf[M41T62_DATETIME_REG_SIZE];
-
- i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, buf, M41T62_DATETIME_REG_SIZE);
-
debug("%s: raw read data - sec=%02x, min=%02x, hr=%02x, "
"mday=%02x, mon=%02x, year=%02x, wday=%02x, y2k=%02x\n",
__FUNCTION__,
@@ -77,20 +73,14 @@ int rtc_get(struct rtc_time *tm)
__FUNCTION__,
tm->tm_sec, tm->tm_min, tm->tm_hour,
tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday);
-
- return 0;
}
-int rtc_set(struct rtc_time *tm)
+static void m41t62_set_rtc_buf(const struct rtc_time *tm, u8 *buf)
{
- u8 buf[M41T62_DATETIME_REG_SIZE];
-
debug("Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_wday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
- i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, buf, M41T62_DATETIME_REG_SIZE);
-
/* Merge time-data and register flags into buf[0..7] */
buf[M41T62_REG_SSEC] = 0;
buf[M41T62_REG_SEC] =
@@ -107,6 +97,24 @@ int rtc_set(struct rtc_time *tm)
bin2bcd(tm->tm_mon) | (buf[M41T62_REG_MON] & ~0x1f);
/* assume 20YY not 19YY */
buf[M41T62_REG_YEAR] = bin2bcd(tm->tm_year % 100);
+}
+
+int rtc_get(struct rtc_time *tm)
+{
+ u8 buf[M41T62_DATETIME_REG_SIZE];
+
+ i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, buf, M41T62_DATETIME_REG_SIZE);
+ m41t62_update_rtc_time(tm, buf);
+
+ return 0;
+}
+
+int rtc_set(struct rtc_time *tm)
+{
+ u8 buf[M41T62_DATETIME_REG_SIZE];
+
+ i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, buf, M41T62_DATETIME_REG_SIZE);
+ m41t62_set_rtc_buf(tm, buf);
if (i2c_write(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, buf,
M41T62_DATETIME_REG_SIZE)) {
