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SubjectRe: [PATCH v3] gpio: twl4030: Cache the direction and output states in private data
On Thu, Dec 20, 2012 at 10:44 AM, Peter Ujfalusi <> wrote:

> Use more coherent locking in the driver. Use bitfield to store the GPIO
> direction and if the pin is configured as output store the status also in a
> bitfiled.
> In this way we can just look at these bitfields when we need information
> about the pin status and only reach out to the chip when it is needed.
> Signed-off-by: Peter Ujfalusi <>
> Acked-by: Linus Walleij <>
> ---
> Hi Grant,
> Changes sicne v2:
> - Fixed the mutex_unlock found by Michael.
> - Removed the debug prints addedd by v2 patch (remains from debugging)
> - Removed one blank line between includes and the first comment section.

Sorry Peter this must have been missed somehow.

This does not apply to the current v3.8-rc3, could you respin
this on top of Torvalds' tree?

Linus Walleij

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