Re: [PATCH 2/2] mfd: sec-core: Fix IRQ handling after resume if this is not a wakeup source

From: Lee Jones
Date: Mon Apr 28 2014 - 08:11:37 EST


On Tue, 22 Apr 2014, Krzysztof Kozlowski wrote:

> During suspend the IRQ should be disabled even if this is not a wakeup
> source. This is a proper way of fixing the IRQ handling issue during
> resume (IRQ handler fails because I2C bus did not resume yet).
>
> When device is suspended and sec-core interrupt is signaled the irq chip
> will try to handle it regardless of wakeup source. Device could be woken
> up by different IRQ but still the IRQ handler will try to read the
> registers over I2C bus and fail because I2C bus won't be ready yet.
>
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
> ---
> drivers/mfd/sec-core.c | 28 +++++++++++++---------------
> 1 file changed, 13 insertions(+), 15 deletions(-)

It's pretty worrying that these two patches are so alike and they
actually change different files. Is there any way we can unify more of
the code?

Patch applied, thanks.

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org â Open source software for ARM SoCs
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