linux-kernel - Re: [PATCH v2 1/1] arm64: dts: exynos990: Add clock management unit nodes

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Message-ID: <9e69c21a-3d97-41e4-addd-d1ebd80f47ff@kernel.org>
Date: Sun, 22 Dec 2024 12:51:58 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Igor Belwon <igor.belwon@...tallysanemainliners.org>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/1] arm64: dts: exynos990: Add clock management unit
 nodes

On 15/12/2024 18:08, Igor Belwon wrote:
> Add CMU nodes for:
> - cmu_top: provides clocks for other blocks
> - cmu_hsi0: provides clocks for usb31
> 
> Signed-off-by: Igor Belwon <igor.belwon@...tallysanemainliners.org>
> ---
>  arch/arm64/boot/dts/exynos/exynos990.dtsi | 28 +++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/exynos/exynos990.dtsi b/arch/arm64/boot/dts/exynos/exynos990.dtsi
> index 2619f821bc7c..d6a8c04e6602 100644
> --- a/arch/arm64/boot/dts/exynos/exynos990.dtsi
> +++ b/arch/arm64/boot/dts/exynos/exynos990.dtsi
> @@ -5,6 +5,7 @@
>   * Copyright (c) 2024, Igor Belwon <igor.belwon@...tallysanemainliners.org>
>   */
>  
> +#include <dt-bindings/clock/samsung,exynos990.h>
>  #include <dt-bindings/interrupt-controller/arm-gic.h>
>  
>  / {
> @@ -199,6 +200,24 @@ pinctrl_peric1: pinctrl@...30000 {
>  			interrupts = <GIC_SPI 417 IRQ_TYPE_LEVEL_HIGH>;
>  		};
>  
> +		cmu_hsi0: clock-controller@...00000 {
> +			compatible = "samsung,exynos990-cmu-hsi0";

Does it depend on anything? Cover letter is quiet here, but it should
explain any dependencies.

> +			reg = <0x10a00000 0x8000>;
> +			#clock-cells = <1>;
> +
> +			clocks = <&oscclk>,
> +				 <&cmu_top CLK_DOUT_CMU_HSI0_BUS>,
> +				 <&cmu_top CLK_DOUT_CMU_HSI0_USB31DRD>,
> +				 <&cmu_top CLK_DOUT_CMU_HSI0_USBDP_DEBUG>,
> +				 <&cmu_top CLK_DOUT_CMU_HSI0_DPGTC>;
> +			clock-names = "oscclk",
> +				      "bus",
> +				      "usb31drd",
> +				      "usbdp_debug",
> +				      "dpgtc";
> +

Not much improved. Still stray blank line.

> +		};
Best regards,
Krzysztof