linux-kernel - Re: [PATCH] arm64: dts: imx8: Fix lvds0 device tree

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Message-ID: <eb3ec7f1-388c-4613-b995-69b8ad6ef2c0@kernel.org>
Date: Mon, 16 Sep 2024 22:23:13 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Diogo Silva <diogompaissilva@...il.com>, robh@...nel.org,
 krzk+dt@...nel.org, conor+dt@...nel.org, shawnguo@...nel.org,
 s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
 aisheng.dong@....com, Frank.Li@....com
Cc: devicetree@...r.kernel.org, imx@...ts.linux.dev,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: imx8: Fix lvds0 device tree

On 16/09/2024 22:02, Diogo Silva wrote:
> From: Diogo Silva <diogompaissilva@...il.com>
> 
> Some clock output names on lvds0 device tree were duplicated from mipi1,
> which caused an -EEXIST when registering these clocks during probe.
> Also fixed the device naming to be consistent with lvds1.
> 
> Fixes: 0fba24b3b956 ("arm64: dts: imx8: add basic lvds0 and lvds1 subsystem")
> subsystem")

Broken tags. They do not line-brake, BTW.

> Signed-off-by: Diogo Silva <diogompaissilva@...il.com>
> ---
>  .../boot/dts/freescale/imx8-ss-lvds0.dtsi     | 22 +++++++++----------
>  arch/arm64/boot/dts/freescale/imx8qm-mek.dts  |  4 ++--
>  .../boot/dts/freescale/imx8qm-ss-lvds.dtsi    | 20 ++++++++---------
>  3 files changed, 23 insertions(+), 23 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-lvds0.dtsi b/arch/arm64/boot/dts/freescale/imx8-ss-lvds0.dtsi
> index d00036204a8c..a4d94467039f 100644
> --- a/arch/arm64/boot/dts/freescale/imx8-ss-lvds0.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8-ss-lvds0.dtsi
> @@ -10,34 +10,34 @@ lvds0_subsys: bus@...40000 {
>  	#size-cells = <1>;
>  	ranges = <0x56240000 0x0 0x56240000 0x10000>;
>  
> -	qm_lvds0_lis_lpcg: qxp_mipi1_lis_lpcg: clock-controller@...43000 {
> +	lvds0_lis_lpcg: clock-controller@...43000 {
>  		compatible = "fsl,imx8qxp-lpcg";
>  		reg = <0x56243000 0x4>;
>  		#clock-cells = <1>;
> -		clock-output-names = "mipi1_lis_lpcg_ipg_clk";
> +		clock-output-names = "lvds0_lis_lpcg_ipg_clk";
>  		power-domains = <&pd IMX_SC_R_MIPI_1>;
>  	};
>  
> -	qm_lvds0_pwm_lpcg: qxp_mipi1_pwm_lpcg: clock-controller@...4300c {
> +	lvds0_pwm_lpcg: clock-controller@...4300c {
>  		compatible = "fsl,imx8qxp-lpcg";
>  		reg = <0x5624300c 0x4>;
>  		#clock-cells = <1>;
> -		clock-output-names = "mipi1_pwm_lpcg_clk",
> -				     "mipi1_pwm_lpcg_ipg_clk",
> -				     "mipi1_pwm_lpcg_32k_clk";
> +		clock-output-names = "lvds0_pwm_lpcg_clk",
> +				     "lvds0_pwm_lpcg_ipg_clk",
> +				     "lvds0_pwm_lpcg_32k_clk";
>  		power-domains = <&pd IMX_SC_R_MIPI_1_PWM_0>;
>  	};
>  
> -	qm_lvds0_i2c0_lpcg: qxp_mipi1_i2c0_lpcg: clock-controller@...43010 {
> +	lvds0_i2c0_lpcg: clock-controller@...43010 {
>  		compatible = "fsl,imx8qxp-lpcg";
>  		reg = <0x56243010 0x4>;
>  		#clock-cells = <1>;
> -		clock-output-names = "mipi1_i2c0_lpcg_clk",
> -				     "mipi1_i2c0_lpcg_ipg_clk";
> +		clock-output-names = "lvds0_i2c0_lpcg_clk",
> +				     "lvds0_i2c0_lpcg_ipg_clk";
>  		power-domains = <&pd IMX_SC_R_MIPI_1_I2C_0>;
>  	};
>  
> -	qm_pwm_lvds0: qxp_pwm_mipi_lvds1: pwm@...44000 {
> +	pwm_lvds0: pwm@...44000 {
>  		compatible = "fsl,imx8qxp-pwm", "fsl,imx27-pwm";
>  		reg = <0x56244000 0x1000>;
>  		clock-names = "ipg", "per";
> @@ -48,7 +48,7 @@ qm_pwm_lvds0: qxp_pwm_mipi_lvds1: pwm@...44000 {
>  		status = "disabled";
>  	};
>  
> -	qm_i2c0_lvds0: qxp_i2c0_mipi_lvds1: i2c@...46000 {
> +	i2c0_lvds0: i2c@...46000 {
>  		compatible = "fsl,imx8qxp-lpi2c", "fsl,imx7ulp-lpi2c";
>  		reg = <0x56246000 0x1000>;
>  		#address-cells = <1>;
> diff --git a/arch/arm64/boot/dts/freescale/imx8qm-mek.dts b/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
> index 62203eed6a6c..f7b9b319a58a 100644
> --- a/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
> @@ -96,7 +96,7 @@ vdevbuffer: memory@...00000 {
>  
>  	lvds_backlight0: backlight-lvds0 {
>  		compatible = "pwm-backlight";
> -		pwms = <&qm_pwm_lvds0 0 100000 0>;
> +		pwms = <&pwm_lvds0 0 100000 0>;
>  		brightness-levels = <0 100>;
>  		num-interpolated-steps = <100>;
>  		default-brightness-level = <80>;
> @@ -541,7 +541,7 @@ &fec2 {
>  	status = "okay";
>  };
>  
> -&qm_pwm_lvds0 {
> +&pwm_lvds0 {

Why this cannot stay qm_pwm_lvds0? Are you sure nodes now have correct
order?



Best regards,
Krzysztof