linux-kernel - Re: [PATCH v17 10/19] ARM: dts: imx6dl-yapp4: Add reg property to the lp5562 channel node

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Date:   Mon, 2 Dec 2019 17:06:45 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Dan Murphy <dmurphy@...com>
Cc:     jacek.anaszewski@...il.com, pavel@....cz,
        linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>
Subject: Re: [PATCH v17 10/19] ARM: dts: imx6dl-yapp4: Add reg property to
 the lp5562 channel node

On Thu, Nov 14, 2019 at 07:30:14AM -0600, Dan Murphy wrote:
> Add the reg property to each channel node.  This update is
> to accomodate the multicolor framework.  In addition to the
> accomodation this allows the LEDs to be placed on any channel
> and allow designs to skip channels as opposed to requiring
> sequential order.
> 
> Signed-off-by: Dan Murphy <dmurphy@...com>
> CC: Shawn Guo <shawnguo@...nel.org>
> CC: Sascha Hauer <s.hauer@...gutronix.de>
> CC: Pengutronix Kernel Team <kernel@...gutronix.de>
> CC: Fabio Estevam <festevam@...il.com>
> CC: NXP Linux Team <linux-imx@....com>
> ---
>  arch/arm/boot/dts/imx6dl-yapp4-common.dtsi | 14 ++++++++++----
>  1 file changed, 10 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
> index e8d800fec637..efc466ed1fea 100644
> --- a/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
> +++ b/arch/arm/boot/dts/imx6dl-yapp4-common.dtsi
> @@ -257,29 +257,35 @@
>  		reg = <0x30>;
>  		clock-mode = /bits/ 8 <1>;
>  		status = "disabled";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
>  
> -		chan0 {
> +		chan@0 {

Again, why do not we rename it to led@0 as you update the bindings in
the last patch in the series?

Shawn

>  			chan-name = "R";
>  			led-cur = /bits/ 8 <0x20>;
>  			max-cur = /bits/ 8 <0x60>;
> +			reg = <0>;
>  		};
>  
> -		chan1 {
> +		chan@1 {
>  			chan-name = "G";
>  			led-cur = /bits/ 8 <0x20>;
>  			max-cur = /bits/ 8 <0x60>;
> +			reg = <1>;
>  		};
>  
> -		chan2 {
> +		chan@2 {
>  			chan-name = "B";
>  			led-cur = /bits/ 8 <0x20>;
>  			max-cur = /bits/ 8 <0x60>;
> +			reg = <2>;
>  		};
>  
> -		chan3 {
> +		chan@3 {
>  			chan-name = "W";
>  			led-cur = /bits/ 8 <0x0>;
>  			max-cur = /bits/ 8 <0x0>;
> +			reg = <3>;
>  		};
>  	};
>  
> -- 
> 2.22.0.214.g8dca754b1e
>