linux-kernel - Re: [PATCH v2 6/7] ARM: dts: sti: move usb picophy nodes out of soc in stih410.dtsi

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Date:   Tue, 15 Feb 2022 17:51:10 +0100
From:   Patrice CHOTARD <patrice.chotard@...s.st.com>
To:     Alain Volmat <avolmat@...com>, Rob Herring <robh+dt@...nel.org>
CC:     Arnd Bergmann <arnd@...db.de>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 6/7] ARM: dts: sti: move usb picophy nodes out of soc
 in stih410.dtsi

Hi ALain

On 2/11/22 19:16, Alain Volmat wrote:
> Move the usb2_picophy1 and usb2_picophy2 nodes out of the soc section.
> Since they are controlled via syscfg, there is no reg property needed,
> which is required when having the node within the soc section.
> 
> Modification is done within stih410.dtsi and within related board
> dts files (stih410-b2120.dts, stih410-b2260.dts).
> 
> Signed-off-by: Alain Volmat <avolmat@...com>
> ---
> v2: squash together 3 commits from v1 to avoid compilation issues
> 
>  arch/arm/boot/dts/stih410-b2120.dts | 16 +++++------
>  arch/arm/boot/dts/stih410-b2260.dts | 16 +++++------
>  arch/arm/boot/dts/stih410.dtsi      | 42 ++++++++++++++---------------
>  3 files changed, 36 insertions(+), 38 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/stih410-b2120.dts b/arch/arm/boot/dts/stih410-b2120.dts
> index 9d3b118f5f0f..538ff98ca1b1 100644
> --- a/arch/arm/boot/dts/stih410-b2120.dts
> +++ b/arch/arm/boot/dts/stih410-b2120.dts
> @@ -24,6 +24,14 @@ aliases {
>  		ethernet0 = &ethernet0;
>  	};
>  
> +	usb2_picophy1: phy2 {
> +		status = "okay";
> +	};
> +
> +	usb2_picophy2: phy3 {
> +		status = "okay";
> +	};
> +
>  	soc {
>  
>  		mmc0: sdhci@...0000 {
> @@ -33,14 +41,6 @@ mmc0: sdhci@...0000 {
>  			sd-uhs-ddr50;
>  		};
>  
> -		usb2_picophy1: phy2@0 {
> -			status = "okay";
> -		};
> -
> -		usb2_picophy2: phy3@0 {
> -			status = "okay";
> -		};
> -
>  		ohci0: usb@...3c00 {
>  			status = "okay";
>  		};
> diff --git a/arch/arm/boot/dts/stih410-b2260.dts b/arch/arm/boot/dts/stih410-b2260.dts
> index c2d3b6de55d0..26d93f26f6d0 100644
> --- a/arch/arm/boot/dts/stih410-b2260.dts
> +++ b/arch/arm/boot/dts/stih410-b2260.dts
> @@ -82,6 +82,14 @@ phy_port1: port@...a000 {
>  		};
>  	};
>  
> +	usb2_picophy1: phy2 {
> +		status = "okay";
> +	};
> +
> +	usb2_picophy2: phy3 {
> +		status = "okay";
> +	};
> +
>  	soc {
>  		/* Low speed expansion connector */
>  		uart0: serial@...0000 {
> @@ -152,14 +160,6 @@ pwm1: pwm@...0000 {
>  			status = "okay";
>  		};
>  
> -		usb2_picophy1: phy2@0 {
> -			status = "okay";
> -		};
> -
> -		usb2_picophy2: phy3@0 {
> -			status = "okay";
> -		};
> -
>  		ohci0: usb@...3c00 {
>  			status = "okay";
>  		};
> diff --git a/arch/arm/boot/dts/stih410.dtsi b/arch/arm/boot/dts/stih410.dtsi
> index fe83d9a522bf..ce2f62cf129b 100644
> --- a/arch/arm/boot/dts/stih410.dtsi
> +++ b/arch/arm/boot/dts/stih410.dtsi
> @@ -12,31 +12,29 @@ aliases {
>  		bdisp0 = &bdisp0;
>  	};
>  
> -	soc {
> -		usb2_picophy1: phy2@0 {
> -			compatible = "st,stih407-usb2-phy";
> -			reg = <0 0>;
> -			#phy-cells = <0>;
> -			st,syscfg = <&syscfg_core 0xf8 0xf4>;
> -			resets = <&softreset STIH407_PICOPHY_SOFTRESET>,
> -				 <&picophyreset STIH407_PICOPHY0_RESET>;
> -			reset-names = "global", "port";
> +	usb2_picophy1: phy2 {
> +		compatible = "st,stih407-usb2-phy";
> +		#phy-cells = <0>;
> +		st,syscfg = <&syscfg_core 0xf8 0xf4>;
> +		resets = <&softreset STIH407_PICOPHY_SOFTRESET>,
> +			 <&picophyreset STIH407_PICOPHY0_RESET>;
> +		reset-names = "global", "port";
> +
> +		status = "disabled";
> +	};
>  
> -			status = "disabled";
> -		};
> +	usb2_picophy2: phy3 {
> +		compatible = "st,stih407-usb2-phy";
> +		#phy-cells = <0>;
> +		st,syscfg = <&syscfg_core 0xfc 0xf4>;
> +		resets = <&softreset STIH407_PICOPHY_SOFTRESET>,
> +			 <&picophyreset STIH407_PICOPHY1_RESET>;
> +		reset-names = "global", "port";
>  
> -		usb2_picophy2: phy3@0 {
> -			compatible = "st,stih407-usb2-phy";
> -			reg = <0 0>;
> -			#phy-cells = <0>;
> -			st,syscfg = <&syscfg_core 0xfc 0xf4>;
> -			resets = <&softreset STIH407_PICOPHY_SOFTRESET>,
> -				 <&picophyreset STIH407_PICOPHY1_RESET>;
> -			reset-names = "global", "port";
> -
> -			status = "disabled";
> -		};
> +		status = "disabled";
> +	};
>  
> +	soc {
>  		ohci0: usb@...3c00 {
>  			compatible = "st,st-ohci-300x";
>  			reg = <0x9a03c00 0x100>;
Reviewed-by: Patrice Chotard <patrice.chotard@...s.st.com>
Thanks
Patrice