linux-kernel - Re: [RESEND 3/3] mfd: twl6040: Clear the interrupt ID register before requesting IRQ

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Message-ID: <20140428104313.GL21279@lee--X1>
Date:	Mon, 28 Apr 2014 11:43:13 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Peter Ujfalusi <peter.ujfalusi@...com>
Cc:	linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
	sameo@...ux.intel.com, nm@...com
Subject: Re: [RESEND 3/3] mfd: twl6040: Clear the interrupt ID register
 before requesting IRQ

> If for some reason the boot loader enabled the audpwron GPIO we will have
> pending IRQs to be handled. This seams to break twl6040 for some reason
> leading to non working i2c communication (i2c timeouts). Clearing the INTID
> register after we requested the audpwron GPIO (and set it to low) will
> ensure that the chip will operate normally in this case as well.
> 
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
> ---
>  drivers/mfd/twl6040.c | 3 +++
>  1 file changed, 3 insertions(+)

Applied, thanks.

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