Re: [PATCH 3/3] arm64: dts: ti: k3-j721e-main: Remove "syscon" nodes added for pcieX_ctrl

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On Mon, Nov 16, 2020 at 11:01:41PM +0530, Kishon Vijay Abraham I wrote:
> Remove "syscon" nodes added for pcieX_ctrl and have the PCIe node
> point to the parent with an offset argument.

This should say breaks compatibility, but that fine because ????. It 
only landed in 5.9 and a new platform I suppose. 

> 
> Link: http://lore.kernel.org/r/CAL_JsqKiUcO76bo1GoepWM1TusJWoty_BRy2hFSgtEVMqtrvvQ@xxxxxxxxxxxxxx

Should have a Fixes tag IMO.

> Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
> ---
>  arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 48 ++++-------------------
>  1 file changed, 8 insertions(+), 40 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> index 620e69e42974..23a0024dda79 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> @@ -28,38 +28,6 @@
>  		#size-cells = <1>;
>  		ranges = <0x0 0x0 0x00100000 0x1c000>;
>  
> -		pcie0_ctrl: syscon@4070 {
> -			compatible = "ti,j721e-system-controller", "syscon", "simple-mfd";
> -			reg = <0x00004070 0x4>;
> -			#address-cells = <1>;
> -			#size-cells = <1>;
> -			ranges = <0x4070 0x4070 0x4>;
> -		};
> -
> -		pcie1_ctrl: syscon@4074 {
> -			compatible = "ti,j721e-system-controller", "syscon", "simple-mfd";
> -			reg = <0x00004074 0x4>;
> -			#address-cells = <1>;
> -			#size-cells = <1>;
> -			ranges = <0x4074 0x4074 0x4>;
> -		};
> -
> -		pcie2_ctrl: syscon@4078 {
> -			compatible = "ti,j721e-system-controller", "syscon", "simple-mfd";
> -			reg = <0x00004078 0x4>;
> -			#address-cells = <1>;
> -			#size-cells = <1>;
> -			ranges = <0x4078 0x4078 0x4>;
> -		};
> -
> -		pcie3_ctrl: syscon@407c {
> -			compatible = "ti,j721e-system-controller", "syscon", "simple-mfd";
> -			reg = <0x0000407c 0x4>;
> -			#address-cells = <1>;
> -			#size-cells = <1>;
> -			ranges = <0x407c 0x407c 0x4>;
> -		};
> -
>  		serdes_ln_ctrl: mux@4080 {
>  			compatible = "mmio-mux";
>  			reg = <0x00004080 0x50>;
> @@ -619,7 +587,7 @@
>  		interrupt-names = "link_state";
>  		interrupts = <GIC_SPI 318 IRQ_TYPE_EDGE_RISING>;
>  		device_type = "pci";
> -		ti,syscon-pcie-ctrl = <&pcie0_ctrl>;
> +		ti,syscon-pcie-ctrl = <&scm_conf 0x4070>;
>  		max-link-speed = <3>;
>  		num-lanes = <2>;
>  		power-domains = <&k3_pds 239 TI_SCI_PD_EXCLUSIVE>;
> @@ -646,7 +614,7 @@
>  		reg-names = "intd_cfg", "user_cfg", "reg", "mem";
>  		interrupt-names = "link_state";
>  		interrupts = <GIC_SPI 318 IRQ_TYPE_EDGE_RISING>;
> -		ti,syscon-pcie-ctrl = <&pcie0_ctrl>;
> +		ti,syscon-pcie-ctrl = <&scm_conf 0x4070>;
>  		max-link-speed = <3>;
>  		num-lanes = <2>;
>  		power-domains = <&k3_pds 239 TI_SCI_PD_EXCLUSIVE>;
> @@ -668,7 +636,7 @@
>  		interrupt-names = "link_state";
>  		interrupts = <GIC_SPI 330 IRQ_TYPE_EDGE_RISING>;
>  		device_type = "pci";
> -		ti,syscon-pcie-ctrl = <&pcie1_ctrl>;
> +		ti,syscon-pcie-ctrl = <&scm_conf 0x4074>;
>  		max-link-speed = <3>;
>  		num-lanes = <2>;
>  		power-domains = <&k3_pds 240 TI_SCI_PD_EXCLUSIVE>;
> @@ -695,7 +663,7 @@
>  		reg-names = "intd_cfg", "user_cfg", "reg", "mem";
>  		interrupt-names = "link_state";
>  		interrupts = <GIC_SPI 330 IRQ_TYPE_EDGE_RISING>;
> -		ti,syscon-pcie-ctrl = <&pcie1_ctrl>;
> +		ti,syscon-pcie-ctrl = <&scm_conf 0x4074>;
>  		max-link-speed = <3>;
>  		num-lanes = <2>;
>  		power-domains = <&k3_pds 240 TI_SCI_PD_EXCLUSIVE>;
> @@ -717,7 +685,7 @@
>  		interrupt-names = "link_state";
>  		interrupts = <GIC_SPI 342 IRQ_TYPE_EDGE_RISING>;
>  		device_type = "pci";
> -		ti,syscon-pcie-ctrl = <&pcie2_ctrl>;
> +		ti,syscon-pcie-ctrl = <&scm_conf 0x4078>;
>  		max-link-speed = <3>;
>  		num-lanes = <2>;
>  		power-domains = <&k3_pds 241 TI_SCI_PD_EXCLUSIVE>;
> @@ -744,7 +712,7 @@
>  		reg-names = "intd_cfg", "user_cfg", "reg", "mem";
>  		interrupt-names = "link_state";
>  		interrupts = <GIC_SPI 342 IRQ_TYPE_EDGE_RISING>;
> -		ti,syscon-pcie-ctrl = <&pcie2_ctrl>;
> +		ti,syscon-pcie-ctrl = <&scm_conf 0x4078>;
>  		max-link-speed = <3>;
>  		num-lanes = <2>;
>  		power-domains = <&k3_pds 241 TI_SCI_PD_EXCLUSIVE>;
> @@ -766,7 +734,7 @@
>  		interrupt-names = "link_state";
>  		interrupts = <GIC_SPI 354 IRQ_TYPE_EDGE_RISING>;
>  		device_type = "pci";
> -		ti,syscon-pcie-ctrl = <&pcie3_ctrl>;
> +		ti,syscon-pcie-ctrl = <&scm_conf 0x407c>;
>  		max-link-speed = <3>;
>  		num-lanes = <2>;
>  		power-domains = <&k3_pds 242 TI_SCI_PD_EXCLUSIVE>;
> @@ -793,7 +761,7 @@
>  		reg-names = "intd_cfg", "user_cfg", "reg", "mem";
>  		interrupt-names = "link_state";
>  		interrupts = <GIC_SPI 354 IRQ_TYPE_EDGE_RISING>;
> -		ti,syscon-pcie-ctrl = <&pcie3_ctrl>;
> +		ti,syscon-pcie-ctrl = <&scm_conf 0x407c>;
>  		max-link-speed = <3>;
>  		num-lanes = <2>;
>  		power-domains = <&k3_pds 242 TI_SCI_PD_EXCLUSIVE>;
> -- 
> 2.17.1
> 



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