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authorKrzysztof Kozlowski <k.kozlowski@samsung.com>2013-11-26 14:50:27 +0100
committerLee Jones <lee.jones@linaro.org>2014-01-21 08:13:35 +0000
commitf6d6daaf9b5260f1769ed040caca53e1c087ca8b (patch)
treeefe07e5525a1192e611584f75b9dfaced6d79df0 /drivers/mfd/arizona-spi.c
parent192afe5e16054f43113803d6751f567ef2e467ae (diff)
mfd: sec: Add PM ops and make it a wake up source
Add PM suspend/resume ops to the sec MFD core driver and make it a wake up source. This allows proper waking from suspend to RAM and also fixes broken interrupts after resuming: [ 42.705703] sec_pmic 7-0066: Failed to read IRQ status: -5 Interrupts stop working after first resume initiated by them (e.g. by RTC Alarm interrupt) because interrupt registers were not cleared properly. When device is woken up from suspend by RTC Alarm, an interrupt occurs before resuming I2C bus controller. The interrupt is handled by regmap_irq_thread which tries to read RTC registers. This read fails (I2C is still suspended) and RTC Alarm interrupt is disabled. Disable the S5M8767 interrupts during suspend (disable_irq()) and enable them during resume so the device will be still woken up but the interrupt won't happen before resuming I2C bus. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/arizona-spi.c')
0 files changed, 0 insertions, 0 deletions