linux-kernel - Re: [PATCH v9] ARM: dts: omap4-panda: Update the LED support for the panda DTS

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Message-ID: <51A8C18E.7020800@epfl.ch>
Date:	Fri, 31 May 2013 17:28:14 +0200
From:	Florian Vaussard <florian.vaussard@...l.ch>
To:	Dan Murphy <dmurphy@...com>
CC:	b-cousson@...com, tony@...mide.com, linux@....linux.org.uk,
	linux-omap@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v9] ARM: dts: omap4-panda: Update the LED support for
 the panda DTS

Hello Dan,

On 05/31/2013 05:19 PM, Dan Murphy wrote:
> The GPIO for LED D1 on the omap4-panda a1-a3 rev and the omap4-panda-es
> are different.
>
> A1-A3 = gpio_wk7
> ES = gpio_110
>
> There is no change to LED D2
>
> Abstract away the pinmux and the LED definitions for the two boards into
> the respective DTS files.
>
> Signed-off-by: Dan Murphy <dmurphy@...com>
> ---
> v9 - Removed comments for mux config - https://patchwork.kernel.org/patch/2644391/
> v8 - Rebase to latest and use pinctrl macros - https://patchwork.kernel.org/patch/2629351/
> v7 - Update headline to add spaces - https://patchwork.kernel.org/patch/2583661/
> v6 - Review comments updated - https://patchwork.kernel.org/patch/2582771/
> v5 - Provide pincrtl phandle to the gpio-led driver - https://patchwork.kernel.org/patch/2573981/
>   arch/arm/boot/dts/omap4-panda-common.dtsi |   16 +++++++++++++++-
>   arch/arm/boot/dts/omap4-panda-es.dts      |   28 ++++++++++++++++++++++++++++
>   2 files changed, 43 insertions(+), 1 deletions(-)
>
> diff --git a/arch/arm/boot/dts/omap4-panda-common.dtsi b/arch/arm/boot/dts/omap4-panda-common.dtsi
> index d5d144a..800fa4e 100644
> --- a/arch/arm/boot/dts/omap4-panda-common.dtsi
> +++ b/arch/arm/boot/dts/omap4-panda-common.dtsi
> @@ -16,8 +16,13 @@
>   		reg = <0x80000000 0x40000000>; /* 1 GB */
>   	};
>
> -	leds {
> +	leds: leds {
>   		compatible = "gpio-leds";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <
> +			&led_wkgpio_pins
> +		>;
> +
>   		heartbeat {
>   			label = "pandaboard::status1";
>   			gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>;
> @@ -157,6 +162,15 @@
>   	};
>   };
>
> +&omap4_pmx_wkup {
> +	led_wkgpio_pins: pinmux_leds_wkpins {
> +		pinctrl-single,pins = <
> +			0x1a (PIN_OUTPUT | MUX_MODE3)	/* gpio_wk7 */
> +			0x1c (PIN_OUTPUT | MUX_MODE3)	/* gpio_wk8 */
> +		>;
> +	};
> +};
> +
>   &i2c1 {
>   	pinctrl-names = "default";
>   	pinctrl-0 = <&i2c1_pins>;
> diff --git a/arch/arm/boot/dts/omap4-panda-es.dts b/arch/arm/boot/dts/omap4-panda-es.dts
> index 5cfdf19..0a7812f 100644
> --- a/arch/arm/boot/dts/omap4-panda-es.dts
> +++ b/arch/arm/boot/dts/omap4-panda-es.dts
> @@ -34,3 +34,31 @@
>   		0x5e (PIN_INPUT | MUX_MODE0)		/* hdmi_sda.hdmi_sda */
>   		>;
>   };
> +
> +&omap4_pmx_core {
> +	led_gpio_pins: gpio_led_pmx {
> +		pinctrl-single,pins = <
> +			0xb6 (PIN_OUTPUT | MUX_MODE3)	/* gpio_110 */
> +		>;
> +	};
> +};
> +
> +&led_wkgpio_pins {
> +	pinctrl-single,pins = <
> +		0x1c (PIN_OUTPUT | MUX_MODE3)	/* gpio_wk8 */
> +	>;
> +};
> +
> +&leds {
> +	pinctrl-0 = <
> +		&led_gpio_pins
> +		&led_wkgpio_pins
> +	>;
> +
> +	heartbeat {
> +		gpios = <&gpio4 14 0>;

And here you could use the GPIO defines:

		gpios = <&gpio4 14 GPIO_ACTIVE_HIGH>;

> +	};
> +	mmc {
> +		gpios = <&gpio1 8 0>;

Same here.

> +	};
> +};
>

Regards,

Florian
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