[PATCH v2 1/4] pinctrl: st: Add Interrupt support.
Linus Walleij
linus.walleij at linaro.org
Thu Jan 23 02:22:53 EST 2014
On Thu, Jan 16, 2014 at 4:36 PM, <srinivas.kandagatla at st.com> wrote:
> From: Srinivas Kandagatla <srinivas.kandagatla at st.com>
>
> This patch add interrupt support to the pincontroller driver.
>
> ST Pincontroller GPIO bank can have one of the two possible types of
> interrupt-wirings.
>
> First type is via irqmux, single interrupt is used by multiple gpio
> banks. This reduces number of overall interrupts numbers required. All
> these banks belong to a single pincontroller.
> _________
> | |----> [gpio-bank (n) ]
> | |----> [gpio-bank (n + 1)]
> [irqN]-- | irq-mux |----> [gpio-bank (n + 2)]
> | |----> [gpio-bank (... )]
> |_________|----> [gpio-bank (n + 7)]
>
> Second type has a dedicated interrupt per gpio bank.
>
> [irqN]----> [gpio-bank (n)]
>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla at st.com>
I've applied this patch so that it won't just sit idle.
Besides you've done a real good job on it Srinivas.
It'll be for v3.15 though and I'm still waiting to see if
the device tree people say something about it.
Yours,
Linus Walleij
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