linux-kernel - Re: [PATCH v4 1/1] arm64: dts: imx93-11x11-evk: add rtc PCF2131 support

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Message-ID: <20240417045720.hk3y6m6roiqtuvfz@pengutronix.de>
Date: Wed, 17 Apr 2024 06:57:20 +0200
From: Marco Felsch <m.felsch@...gutronix.de>
To: Joy Zou <joy.zou@....com>
Cc: frank.li@....com, ping.bai@....com, robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
	shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
	festevam@...il.com, linux-imx@....com, devicetree@...r.kernel.org,
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/1] arm64: dts: imx93-11x11-evk: add rtc PCF2131
 support

Hi Joy,

On 24-04-17, Joy Zou wrote:
> Support rtc PCF2131 on imx93-11x11-evk.
> 
> Signed-off-by: Joy Zou <joy.zou@....com>
> ---
> Changes in v4:
> 1. remove the sleep from the pinctrl-names.
> 
> Changes in v3:
> 1.adjust the indentation.
> 
> Changes in v2:
> 1. remove unnecessary status property.
> ---
>  .../boot/dts/freescale/imx93-11x11-evk.dts    | 24 +++++++++++++++++++
>  1 file changed, 24 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
> index 07e85a30a25f..bc3c9271d747 100644
> --- a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
> @@ -281,6 +281,23 @@ ldo5: LDO5 {
>  	};
>  };
>  
> +&lpi2c3 {
> +	#address-cells = <1>;
> +	#size-cells = <0>;

while reading your patch I also noticed that you had to specify these
cells here. It is very common to specify it within the base dtsi file
imx93.dtsi. Can you please provde an extra patch which adds this to the
base dtsi followed by this patch, which of course do need to specify it
again.

Thanks you,
  Marco

> +	clock-frequency = <400000>;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_lpi2c3>;
> +	pinctrl-1 = <&pinctrl_lpi2c3>;
> +	status = "okay";
> +
> +	pcf2131: rtc@53 {
> +		compatible = "nxp,pcf2131";
> +		reg = <0x53>;
> +		interrupt-parent = <&pcal6524>;
> +		interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
> +	};
> +};
> +
>  &iomuxc {
>  	pinctrl_eqos: eqosgrp {
>  		fsl,pins = <
> @@ -343,6 +360,13 @@ MX93_PAD_I2C2_SDA__LPI2C2_SDA			0x40000b9e
>  		>;
>  	};
>  
> +	pinctrl_lpi2c3: lpi2c3grp {
> +		fsl,pins = <
> +			MX93_PAD_GPIO_IO28__LPI2C3_SDA			0x40000b9e
> +			MX93_PAD_GPIO_IO29__LPI2C3_SCL			0x40000b9e
> +		>;
> +	};
> +
>  	pinctrl_pcal6524: pcal6524grp {
>  		fsl,pins = <
>  			MX93_PAD_CCM_CLKO2__GPIO3_IO27			0x31e
> -- 
> 2.37.1
> 
>