linux-kernel - Re: [PATCH v2 5/5] arm64: dts: imx943: Add LVDS/DISPLAY CSR nodes

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Message-ID: <aGaTszJ72cmfT5Jt@lizhi-Precision-Tower-5810>
Date: Thu, 3 Jul 2025 10:29:34 -0400
From: Frank Li <Frank.li@....com>
To: Peng Fan <peng.fan@....com>
Cc: Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, Abel Vesa <abelvesa@...nel.org>,
	linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, Abel Vesa <abel.vesa@...aro.org>
Subject: Re: [PATCH v2 5/5] arm64: dts: imx943: Add LVDS/DISPLAY CSR nodes

On Thu, Jul 03, 2025 at 11:40:24AM +0800, Peng Fan wrote:
> Add nodes for LVDS/DISPLAY CSR.
>
> Add clock-ldb-pll-div7 node which is used for clock source of DISPLAY CSR.
>
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---

Reviewed-by: Frank Li <Frank.Li@....com>
>  arch/arm64/boot/dts/freescale/imx943.dtsi | 34 +++++++++++++++++++++++++++++++
>  1 file changed, 34 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx943.dtsi b/arch/arm64/boot/dts/freescale/imx943.dtsi
> index 45b8da758e87771c0775eb799ce2da3aac37c060..657c81b6016f21270a1b13d636af72c14ab4f8ef 100644
> --- a/arch/arm64/boot/dts/freescale/imx943.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx943.dtsi
> @@ -3,6 +3,8 @@
>   * Copyright 2025 NXP
>   */
>
> +#include <dt-bindings/clock/nxp,imx94-clock.h>
> +
>  #include "imx94.dtsi"
>
>  / {
> @@ -145,4 +147,36 @@ l3_cache: l3-cache {
>  			cache-unified;
>  		};
>  	};
> +
> +	clock-ldb-pll-div7 {
> +		compatible = "fixed-factor-clock";
> +		#clock-cells = <0>;
> +		clocks = <&scmi_clk IMX94_CLK_LDBPLL>;
> +		clock-div = <7>;
> +		clock-mult = <1>;
> +		clock-output-names = "ldb_pll_div7";
> +	};
> +
> +	soc {
> +		dispmix_csr: syscon@...10000 {
> +			compatible = "nxp,imx94-display-csr", "syscon";
> +			reg = <0x0 0x4b010000 0x0 0x10000>;
> +			clocks = <&scmi_clk IMX94_CLK_DISPAPB>;
> +			#clock-cells = <1>;
> +			power-domains = <&scmi_devpd IMX94_PD_DISPLAY>;
> +			assigned-clocks = <&scmi_clk IMX94_CLK_DISPAXI>,
> +					  <&scmi_clk IMX94_CLK_DISPAPB>;
> +			assigned-clock-parents = <&scmi_clk IMX94_CLK_SYSPLL1_PFD1>,
> +						 <&scmi_clk IMX94_CLK_SYSPLL1_PFD1_DIV2>;
> +			assigned-clock-rates = <400000000>,  <133333333>;
> +		};
> +
> +		lvds_csr: syscon@...c0000 {
> +			compatible = "nxp,imx94-lvds-csr", "syscon";
> +			reg = <0x0 0x4b0c0000 0x0 0x10000>;
> +			clocks = <&scmi_clk IMX94_CLK_DISPAPB>;
> +			#clock-cells = <1>;
> +			power-domains = <&scmi_devpd IMX94_PD_DISPLAY>;
> +		};
> +	};
>  };
>
> --
> 2.37.1
>