From: "Linus Walleij" <[email protected]> Subject: drivers/rtc/rtc-pl031.c: enable clock on all ST variants
The ST variants of the PL031 all require bit 26 in the control register to be set before they work properly. Discovered this when testing on the Nomadik board where it would suprisingly just stand still. Signed-off-by: Linus Walleij <[email protected]> Cc: Mian Yousaf Kaukab <[email protected]> Cc: Alessandro Rubini <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> --- drivers/rtc/rtc-pl031.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff -puN drivers/rtc/rtc-pl031.c~drivers-rtc-rtc-pl031c-enable-clock-on-all-st-variants drivers/rtc/rtc-pl031.c --- a/drivers/rtc/rtc-pl031.c~drivers-rtc-rtc-pl031c-enable-clock-on-all-st-variants +++ a/drivers/rtc/rtc-pl031.c @@ -339,8 +339,7 @@ static int pl031_probe(struct amba_devic dev_dbg(&adev->dev, "revision = 0x%01x\n", ldata->hw_revision); /* Enable the clockwatch on ST Variants */ - if ((ldata->hw_designer == AMBA_VENDOR_ST) && - (ldata->hw_revision > 1)) + if (ldata->hw_designer == AMBA_VENDOR_ST) writel(readl(ldata->base + RTC_CR) | RTC_CR_CWEN, ldata->base + RTC_CR); _ -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
