Armadaxp GPIO interrupts
Andrew Lunn
andrew at lunn.ch
Fri Aug 7 15:10:52 PDT 2015
On Sat, Aug 08, 2015 at 02:24:04AM +0530, raghu MG wrote:
> Hi Andrew,
> I added these entries into armada-xp-gp.dtb
> gpio_rtm {
> compatible = "gpio-rtm";
> #address-cells = <1>;
> #size-cells = <0>;
> pinctrl-0 = <&keys_pin>;
> pinctrl-names = "default";
>
> rtm at 57 {
> label = "RTM JACKINOUT";
> gpios = <&gpio1 26 GPIO_ACTIVE_LOW>; /* GPIO 57 */
> };
> };
>
> So I understand the leaf nodes are specific purpose of
> GPIOs(input:keyboard,mouse,touchpad etc).
> 1)For the board I am working needs different implementation for GPIO
> 57 unlike input devices drivers driving GPIOs.
> 2)To implement the functionality I need to write driver specific to my
> board which will implement event specific to requirements.
> I hope I am going right here, can you name a simple driver(kernel
> source) where it would make my driver development easy.
Given the name "RTM JACKINOUT", how about
sound/soc/soc-jack.c
Andrew
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