On 23/12/2015 at 19:37:19 +0200, Andy Shevchenko wrote :

The Microsoft Surface 3 tablet shares interrupt line between RTC and one of SPI
controllers. However, the rtc_cmos driver doesn't allow shared interrupts and
user sees the following warning

genirq: Flags mismatch irq 8. 00000080 (8086228E:02) vs. 00000000 (rtc0)
...
[<ffffffffa004eb01>] pxa2xx_spi_probe+0x151/0x600 [spi_pxa2xx_platform]

Allow RTC driver to use shared interrupts.

Seems we are on the safe side to do just this simple change since
cmos_interrupt() handler checks for the actual hardware status anyway.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/rtc/rtc-cmos.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks.

-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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