Re: [PATCH 1/2] ARM: dts: qcom: ipq4019-ap.dk01.1: use existing labels for nodes

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On 11.08.2023 23:01, Robert Marko wrote:
> All of the nodes under soc already have existing labels so use those
> instead.
> 
> Signed-off-by: Robert Marko <robimarko@xxxxxxxxx>
> ---
dtx_diff returns an empty diff, nice

Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>

Couple further suggestions:

- wdog can probably enabled unconditionally
- same for blsp dma since there's only one host so it must be
  used by something
- same for crypto engine as it's a common piece of hw
- you can drop mux{}, pinmux{}, pinconf{} from pin nodes, just add
  the properties directly under the pin nodes
- this devicetree could use some schema warnings cleanup (make dtbs_check
  plus things like no underscores in node names)

Konrad
>  .../boot/dts/qcom/qcom-ipq4019-ap.dk01.1.dtsi | 140 +++++++++---------
>  1 file changed, 69 insertions(+), 71 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/qcom/qcom-ipq4019-ap.dk01.1.dtsi b/arch/arm/boot/dts/qcom/qcom-ipq4019-ap.dk01.1.dtsi
> index 0505270cf508..0714616c9e45 100644
> --- a/arch/arm/boot/dts/qcom/qcom-ipq4019-ap.dk01.1.dtsi
> +++ b/arch/arm/boot/dts/qcom/qcom-ipq4019-ap.dk01.1.dtsi
> @@ -27,87 +27,85 @@ aliases {
>  	chosen {
>  		stdout-path = "serial0:115200n8";
>  	};
> +};
>  
> -	soc {
> -		rng@22000 {
> -			status = "okay";
> -		};
> +&prng {
> +	status = "okay";
> +};
>  
> -		pinctrl@1000000 {
> -			serial_pins: serial_pinmux {
> -				mux {
> -					pins = "gpio60", "gpio61";
> -					function = "blsp_uart0";
> -					bias-disable;
> -				};
> -			};
> -
> -			spi_0_pins: spi_0_pinmux {
> -				pinmux {
> -					function = "blsp_spi0";
> -					pins = "gpio55", "gpio56", "gpio57";
> -				};
> -				pinmux_cs {
> -					function = "gpio";
> -					pins = "gpio54";
> -				};
> -				pinconf {
> -					pins = "gpio55", "gpio56", "gpio57";
> -					drive-strength = <12>;
> -					bias-disable;
> -				};
> -				pinconf_cs {
> -					pins = "gpio54";
> -					drive-strength = <2>;
> -					bias-disable;
> -					output-high;
> -				};
> -			};
> +&tlmm {
> +	serial_pins: serial_pinmux {
> +		mux {
> +			pins = "gpio60", "gpio61";
> +			function = "blsp_uart0";
> +			bias-disable;
>  		};
> +	};
>  
> -		blsp_dma: dma-controller@7884000 {
> -			status = "okay";
> +	spi_0_pins: spi_0_pinmux {
> +		pinmux {
> +			function = "blsp_spi0";
> +			pins = "gpio55", "gpio56", "gpio57";
>  		};
> -
> -		spi@78b5000 {
> -			pinctrl-0 = <&spi_0_pins>;
> -			pinctrl-names = "default";
> -			status = "okay";
> -			cs-gpios = <&tlmm 54 GPIO_ACTIVE_HIGH>;
> -
> -			mx25l25635e@0 {
> -				#address-cells = <1>;
> -				#size-cells = <1>;
> -				reg = <0>;
> -				compatible = "mx25l25635e";
> -				spi-max-frequency = <24000000>;
> -			};
> +		pinmux_cs {
> +			function = "gpio";
> +			pins = "gpio54";
>  		};
> -
> -		serial@78af000 {
> -			pinctrl-0 = <&serial_pins>;
> -			pinctrl-names = "default";
> -			status = "okay";
> +		pinconf {
> +			pins = "gpio55", "gpio56", "gpio57";
> +			drive-strength = <12>;
> +			bias-disable;
>  		};
> -
> -		cryptobam: dma-controller@8e04000 {
> -			status = "okay";
> +		pinconf_cs {
> +			pins = "gpio54";
> +			drive-strength = <2>;
> +			bias-disable;
> +			output-high;
>  		};
> +	};
> +};
>  
> -		crypto@8e3a000 {
> -			status = "okay";
> -		};
> +&blsp_dma {
> +	status = "okay";
> +};
>  
> -		watchdog@b017000 {
> -			status = "okay";
> -		};
> +&blsp1_spi1 {
> +	pinctrl-0 = <&spi_0_pins>;
> +	pinctrl-names = "default";
> +	status = "okay";
> +	cs-gpios = <&tlmm 54 GPIO_ACTIVE_HIGH>;
> +
> +	mx25l25635e@0 {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		reg = <0>;
> +		compatible = "mx25l25635e";
> +		spi-max-frequency = <24000000>;
> +	};
> +};
>  
> -		wifi@a000000 {
> -			status = "okay";
> -		};
> +&blsp1_uart1 {
> +	pinctrl-0 = <&serial_pins>;
> +	pinctrl-names = "default";
> +	status = "okay";
> +};
>  
> -		wifi@a800000 {
> -			status = "okay";
> -		};
> -	};
> +&cryptobam {
> +	status = "okay";
> +};
> +
> +&crypto {
> +	status = "okay";
> +};
> +
> +&watchdog {
> +	status = "okay";
> +};
> +
> +&wifi0 {
> +	status = "okay";
> +};
> +
> +&wifi1 {
> +	status = "okay";
>  };



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