Commit 699bc661 authored Jul 26, 2007 by Markus Brunner Committed by Paul Mundt Jul 26, 2007

rtc: rtc-sh: Correct sh_rtc_set_time() for some SH-3 parts.



Some SH-3 parts (SH7720 and SH7705 at least) need to have the
start bit explicitly cleared, as the reset is not enough. This
is safe across all parts, so simply clear the start bit in
the sh_rtc_set_time() path.

Signed-off-by: Markus Brunner <super.firetwister@gmail.com>
Signed-off by: Mark Jonas <toertel@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

parent d89ddd1c

drivers/rtc/rtc-sh.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -365,6 +365,7 @@ static int sh_rtc_set_time(struct device dev, struct rtc_time tm)
		/* Reset pre-scaler & stop RTC */
		tmp = readb(rtc->regbase + RCR2);
		tmp \|= RCR2_RESET;
		tmp &= ~RCR2_START;
		writeb(tmp, rtc->regbase + RCR2);

		writeb(BIN2BCD(tm->tm_sec), rtc->regbase + RSECCNT);

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