A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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rtc: rtc-sh: Correct sh_rtc_set_time() for some SH-3 parts.

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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 <[email protected]>
Signed-off by: Mark Jonas <[email protected]>
Signed-off-by: Paul Mundt <[email protected]>
This commit is contained in:
Markus Brunner 2007-07-26 17:31:28 +09:00 • committed by Paul Mundt
commit 699bc6614f
1 changed files with 1 additions and 0 deletions
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1
drivers/rtc/rtc-sh.c
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@ -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);