linux-kernel - RE: [PATCH V2 05/18] ARM64: dts: imx8: add the missing lpi2c ipg clock

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Date:   Fri, 21 May 2021 06:28:26 +0000
From:   Aisheng Dong <aisheng.dong@....com>
To:     Clark Wang <xiaoning.wang@....com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>
CC:     "kernel@...gutronix.de" <kernel@...gutronix.de>,
        dl-linux-imx <linux-imx@....com>,
        "linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH V2 05/18] ARM64: dts: imx8: add the missing lpi2c ipg
 clock

> From: Clark Wang <xiaoning.wang@....com>
> Sent: Tuesday, April 6, 2021 7:33 PM
> 
> The lpi2c driver has add the missing ipg clock.
> So add the ipg clock here for all lpi2c nodes.
> 
> Signed-off-by: Clark Wang <xiaoning.wang@....com>
> ---
> V2 changes:
>  - New patch added in V2
> ---
>  .../arm64/boot/dts/freescale/imx8-ss-dma.dtsi | 24 ++++++++++++-------
>  1 file changed, 16 insertions(+), 8 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
> b/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
> index 960a802b8b6e..b5ed12a06538 100644
> --- a/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
> @@ -111,8 +111,10 @@ uart3_lpcg: clock-controller@...90000 {
>  	i2c0: i2c@...00000 {
>  		reg = <0x5a800000 0x4000>;
>  		interrupts = <GIC_SPI 220 IRQ_TYPE_LEVEL_HIGH>;
> -		clocks = <&i2c0_lpcg IMX_LPCG_CLK_0>;
> -		clock-names = "per";
> +		interrupt-parent = <&gic>;

Added by mistake?

> +		clocks = <&i2c0_lpcg IMX_LPCG_CLK_0>,
> +			 <&i2c0_lpcg IMX_LPCG_CLK_4>;
> +		clock-names = "per", "ipg";
>  		assigned-clocks = <&clk IMX_SC_R_I2C_0 IMX_SC_PM_CLK_PER>;
>  		assigned-clock-rates = <24000000>;
>  		power-domains = <&pd IMX_SC_R_I2C_0>; @@ -122,8 +124,10 @@
> i2c0: i2c@...00000 {
>  	i2c1: i2c@...10000 {
>  		reg = <0x5a810000 0x4000>;
>  		interrupts = <GIC_SPI 221 IRQ_TYPE_LEVEL_HIGH>;
> -		clocks = <&i2c1_lpcg IMX_LPCG_CLK_0>;
> -		clock-names = "per";
> +		interrupt-parent = <&gic>;

Ditto

> +		clocks = <&i2c1_lpcg IMX_LPCG_CLK_0>,
> +			 <&i2c1_lpcg IMX_LPCG_CLK_4>;
> +		clock-names = "per", "ipg";
>  		assigned-clocks = <&clk IMX_SC_R_I2C_1 IMX_SC_PM_CLK_PER>;
>  		assigned-clock-rates = <24000000>;
>  		power-domains = <&pd IMX_SC_R_I2C_1>; @@ -133,8 +137,10 @@
> i2c1: i2c@...10000 {
>  	i2c2: i2c@...20000 {
>  		reg = <0x5a820000 0x4000>;
>  		interrupts = <GIC_SPI 222 IRQ_TYPE_LEVEL_HIGH>;
> -		clocks = <&i2c2_lpcg IMX_LPCG_CLK_0>;
> -		clock-names = "per";
> +		interrupt-parent = <&gic>;
> +		clocks = <&i2c2_lpcg IMX_LPCG_CLK_0>,
> +			 <&i2c2_lpcg IMX_LPCG_CLK_4>;
> +		clock-names = "per", "ipg";
>  		assigned-clocks = <&clk IMX_SC_R_I2C_2 IMX_SC_PM_CLK_PER>;
>  		assigned-clock-rates = <24000000>;
>  		power-domains = <&pd IMX_SC_R_I2C_2>; @@ -144,8 +150,10 @@
> i2c2: i2c@...20000 {
>  	i2c3: i2c@...30000 {
>  		reg = <0x5a830000 0x4000>;
>  		interrupts = <GIC_SPI 223 IRQ_TYPE_LEVEL_HIGH>;
> -		clocks = <&i2c3_lpcg IMX_LPCG_CLK_0>;
> -		clock-names = "per";
> +		interrupt-parent = <&gic>;
> +		clocks = <&i2c3_lpcg IMX_LPCG_CLK_0>,
> +			 <&i2c3_lpcg IMX_LPCG_CLK_4>;
> +		clock-names = "per", "ipg";
>  		assigned-clocks = <&clk IMX_SC_R_I2C_3 IMX_SC_PM_CLK_PER>;
>  		assigned-clock-rates = <24000000>;
>  		power-domains = <&pd IMX_SC_R_I2C_3>;
> --
> 2.25.1