On Tue, Feb 04, 2014 at 09:57:42PM +0800, Liu Ying wrote:
> The D25 LED controlled by gpio on the i.MX51 babbage
> board is a diagnostic LED according to the board design.
> This patch adds the relevant device tree nodes to the
> i.MX51 babbage device tree file to support this LED.
>
> Signed-off-by: Liu Ying <[email protected]>
> ---
> arch/arm/boot/dts/imx51-babbage.dts | 17 +++++++++++++++++
> 1 file changed, 17 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx51-babbage.dts
> b/arch/arm/boot/dts/imx51-babbage.dts
> index be1407c..8d6a74b 100644
> --- a/arch/arm/boot/dts/imx51-babbage.dts
> +++ b/arch/arm/boot/dts/imx51-babbage.dts
> @@ -81,6 +81,17 @@
> };
> };
>
> + leds {
> + compatible = "gpio-leds";
> + pinctrl-names = "default";
> + pinctrl-0 = <&led_pin_gpio2_6>;
> +
> + led-diagnostic {
> + label = "diagnostic";
> + gpios = <&gpio2 6 0>;
Just out of curiosity, how will you use/trigger the led?
> + };
> + };
> +
> sound {
> compatible = "fsl,imx51-babbage-sgtl5000",
> "fsl,imx-audio-sgtl5000";
> @@ -280,6 +291,12 @@
> MX51_PAD_CSPI1_RDY__GPIO4_26 0x80000000
> >;
> };
> +
> + led_pin_gpio2_6: led_gpio2_6 {
This might be copied from some existing file, but I would hope the name
can be more generic, something like the following
pinctrl_gpio_leds: gpioledsgrp {
, so that when we have more gpio controlled leds to add, we can just add
more pins into the same group without concerning the name.
Shawn
> + fsl,pins = <
> + MX51_PAD_EIM_D22__GPIO2_6 0x80000000
> + >;
> + };
> };
> };
>
> --
> 1.7.9.5
>
>
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