From 3f31f1729d56cb31c0d45f88e7ea0f6c749c0a92 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Wed, 28 Feb 2024 00:04:18 +0100 Subject: [PATCH] rtc: ds1511: drop dead code The watchdog part of the code is not reachable and should be reimplemented properly as a watchdog driver. Link: https://lore.kernel.org/r/20240227230431.1837717-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni --- drivers/rtc/rtc-ds1511.c | 44 ---------------------------------------- 1 file changed, 44 deletions(-) diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c index a646bcf9cd56..fe8dbad51c88 100644 --- a/drivers/rtc/rtc-ds1511.c +++ b/drivers/rtc/rtc-ds1511.c @@ -122,50 +122,6 @@ rtc_enable_update(void) rtc_write((rtc_read(RTC_CMD) | RTC_TE), RTC_CMD); } -/* - * #define DS1511_WDOG_RESET_SUPPORT - * - * Uncomment this if you want to use these routines in - * some platform code. - */ -#ifdef DS1511_WDOG_RESET_SUPPORT -/* - * just enough code to set the watchdog timer so that it - * will reboot the system - */ -void -ds1511_wdog_set(unsigned long deciseconds) -{ - /* - * the wdog timer can take 99.99 seconds - */ - deciseconds %= 10000; - /* - * set the wdog values in the wdog registers - */ - rtc_write(bin2bcd(deciseconds % 100), DS1511_WD_MSEC); - rtc_write(bin2bcd(deciseconds / 100), DS1511_WD_SEC); - /* - * set wdog enable and wdog 'steering' bit to issue a reset - */ - rtc_write(rtc_read(RTC_CMD) | DS1511_WDE | DS1511_WDS, RTC_CMD); -} - -void -ds1511_wdog_disable(void) -{ - /* - * clear wdog enable and wdog 'steering' bits - */ - rtc_write(rtc_read(RTC_CMD) & ~(DS1511_WDE | DS1511_WDS), RTC_CMD); - /* - * clear the wdog counter - */ - rtc_write(0, DS1511_WD_MSEC); - rtc_write(0, DS1511_WD_SEC); -} -#endif - static int ds1511_rtc_set_time(struct device *dev, struct rtc_time *rtc_tm) { u8 mon, day, dow, hrs, min, sec, yrs, cen;