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SubjectRe: [PATCH] pca953x: pca953x driver fixes for x86 mrst
On Fri, 22 Oct 2010 13:47:47 +0100
Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:

> From: Alek Du <alek.du@intel.com>
>
> Our Moorestown platform has two max7315 chips which is covered by
> pca953x i2c gpio driver.
>
> A while ago this driver got updated with nested irq thread support, and it
> broke the compatibity with "request_irq". For example, the gpio_keys.c
> driver can not work with this driver now. This patch fixes the issue by
> switching to generic_handle_irq.
>
> Also fix the irq_base issue: irq_base == 0 is valid, and a "-1" value
> should mean invalid. IRQ 0 is not a valid IRQ, irq_base of 0 is valid.

This sounds like a regression fix. Should it be backported into
-stable?



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