From mboxrd@z Thu Jan  1 00:00:00 1970
From: hdegoede@redhat.com (Hans de Goede)
Date: Fri, 18 Sep 2015 11:32:37 -0400
Subject: [linux-sunxi] [PATCH 3/4] ARM: dts: sun8i: Enable PWM controller
 on A23/A33 Q8 format tablets
In-Reply-To: <1442561739-6824-4-git-send-email-wens@csie.org>
References: <1442561739-6824-1-git-send-email-wens@csie.org>
 <1442561739-6824-4-git-send-email-wens@csie.org>
Message-ID: <55FC2E95.7040006@redhat.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Hi,

On 09/18/2015 03:35 AM, Chen-Yu Tsai wrote:
> A23/A33 based Q8 format tablets use channel 0 of the PWM controller for
> backlight dimming.
>
> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
> ---
>   arch/arm/boot/dts/sun8i-q8-common.dtsi | 6 ++++++
>   1 file changed, 6 insertions(+)
>
> diff --git a/arch/arm/boot/dts/sun8i-q8-common.dtsi b/arch/arm/boot/dts/sun8i-q8-common.dtsi
> index 6f8a8bb4e9bb..4c2d0b459d6f 100644
> --- a/arch/arm/boot/dts/sun8i-q8-common.dtsi
> +++ b/arch/arm/boot/dts/sun8i-q8-common.dtsi
> @@ -70,6 +70,12 @@
>   	};
>   };
>
> +&pwm {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pwm0_pins>;
> +	status = "okay";
> +};
> +
>   &r_uart {
>   	pinctrl-names = "default";
>   	pinctrl-0 = <&r_uart_pins_a>;
>

I've a feeling this should be in sunxi-q8-common.dtsi not sun8i-q8-common.dtsi, which requires adding a pwm
node to sun5i.dtsi I'll look into this.

Regards,

Hans