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@@ -14,6 +14,7 @@
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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+#include <linux/bcd.h>
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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@@ -52,9 +53,6 @@ static inline u8 _rtc8564_ctrl2(struct i2c_client *client)
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#define CTRL1(c) _rtc8564_ctrl1(c)
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#define CTRL2(c) _rtc8564_ctrl2(c)
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-#define BCD_TO_BIN(val) (((val)&15) + ((val)>>4)*10)
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-#define BIN_TO_BCD(val) ((((val)/10)<<4) + (val)%10)
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-
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static int debug;;
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module_param(debug, int, S_IRUGO | S_IWUSR);
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@@ -224,16 +222,16 @@ static int rtc8564_get_datetime(struct i2c_client *client, struct rtc_tm *dt)
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return ret;
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/* century stored in minute alarm reg */
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- dt->year = BCD_TO_BIN(buf[RTC8564_REG_YEAR]);
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- dt->year += 100 * BCD_TO_BIN(buf[RTC8564_REG_AL_MIN] & 0x3f);
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- dt->mday = BCD_TO_BIN(buf[RTC8564_REG_DAY] & 0x3f);
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- dt->wday = BCD_TO_BIN(buf[RTC8564_REG_WDAY] & 7);
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- dt->mon = BCD_TO_BIN(buf[RTC8564_REG_MON_CENT] & 0x1f);
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+ dt->year = BCD2BIN(buf[RTC8564_REG_YEAR]);
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+ dt->year += 100 * BCD2BIN(buf[RTC8564_REG_AL_MIN] & 0x3f);
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+ dt->mday = BCD2BIN(buf[RTC8564_REG_DAY] & 0x3f);
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+ dt->wday = BCD2BIN(buf[RTC8564_REG_WDAY] & 7);
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+ dt->mon = BCD2BIN(buf[RTC8564_REG_MON_CENT] & 0x1f);
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- dt->secs = BCD_TO_BIN(buf[RTC8564_REG_SEC] & 0x7f);
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+ dt->secs = BCD2BIN(buf[RTC8564_REG_SEC] & 0x7f);
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dt->vl = (buf[RTC8564_REG_SEC] & 0x80) == 0x80;
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- dt->mins = BCD_TO_BIN(buf[RTC8564_REG_MIN] & 0x7f);
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- dt->hours = BCD_TO_BIN(buf[RTC8564_REG_HR] & 0x3f);
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+ dt->mins = BCD2BIN(buf[RTC8564_REG_MIN] & 0x7f);
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+ dt->hours = BCD2BIN(buf[RTC8564_REG_HR] & 0x3f);
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_DBGRTCTM(2, *dt);
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@@ -255,18 +253,18 @@ rtc8564_set_datetime(struct i2c_client *client, struct rtc_tm *dt, int datetoo)
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buf[RTC8564_REG_CTRL1] = CTRL1(client) | RTC8564_CTRL1_STOP;
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buf[RTC8564_REG_CTRL2] = CTRL2(client);
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- buf[RTC8564_REG_SEC] = BIN_TO_BCD(dt->secs);
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- buf[RTC8564_REG_MIN] = BIN_TO_BCD(dt->mins);
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- buf[RTC8564_REG_HR] = BIN_TO_BCD(dt->hours);
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+ buf[RTC8564_REG_SEC] = BIN2BCD(dt->secs);
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+ buf[RTC8564_REG_MIN] = BIN2BCD(dt->mins);
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+ buf[RTC8564_REG_HR] = BIN2BCD(dt->hours);
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if (datetoo) {
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len += 5;
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- buf[RTC8564_REG_DAY] = BIN_TO_BCD(dt->mday);
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- buf[RTC8564_REG_WDAY] = BIN_TO_BCD(dt->wday);
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- buf[RTC8564_REG_MON_CENT] = BIN_TO_BCD(dt->mon) & 0x1f;
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+ buf[RTC8564_REG_DAY] = BIN2BCD(dt->mday);
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+ buf[RTC8564_REG_WDAY] = BIN2BCD(dt->wday);
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+ buf[RTC8564_REG_MON_CENT] = BIN2BCD(dt->mon) & 0x1f;
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/* century stored in minute alarm reg */
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- buf[RTC8564_REG_YEAR] = BIN_TO_BCD(dt->year % 100);
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- buf[RTC8564_REG_AL_MIN] = BIN_TO_BCD(dt->year / 100);
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+ buf[RTC8564_REG_YEAR] = BIN2BCD(dt->year % 100);
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+ buf[RTC8564_REG_AL_MIN] = BIN2BCD(dt->year / 100);
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}
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ret = rtc8564_write(client, 0, buf, len);
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