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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

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
Follow Linaro: Facebook | Twitter | Blog
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/