linux-kernel - Re: [PATCH] arm64: dts: imx8mq: Default parents for PCIE1 clocks

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Message-ID: <20190722064840.GB3738@dragon>
Date:   Mon, 22 Jul 2019 14:48:41 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Abel Vesa <abel.vesa@....com>
Cc:     Rob Herring <robh@...nel.org>, Mark Rutland <mark.rutland@....com>,
        Leonard Crestez <leonard.crestez@....com>,
        Andrey Smirnov <andrew.smirnov@...il.com>,
        Sascha Hauer <kernel@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arm64: dts: imx8mq: Default parents for PCIE1 clocks

On Thu, Jul 04, 2019 at 01:24:24PM +0300, Abel Vesa wrote:
> Set default parents for PCIE1_CTRL and PCIE1_PHY clocks.

Can you add a few words about why this change is necessary?

Shawn

> 
> Signed-off-by: Abel Vesa <abel.vesa@....com>
> ---
>  arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
> index e3df9b8..23bf85f 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
> @@ -235,6 +235,10 @@
>  		 <&clk IMX8MQ_CLK_PCIE1_PHY>,
>  		 <&pcie0_refclk>;
>  	clock-names = "pcie", "pcie_aux", "pcie_phy", "pcie_bus";
> +	assigned-clocks = <&clk IMX8MQ_CLK_PCIE1_CTRL>,
> +			  <&clk IMX8MQ_CLK_PCIE1_PHY>;
> +	assigned-clock-parents = <&clk IMX8MQ_SYS2_PLL_250M>,
> +				 <&clk IMX8MQ_SYS2_PLL_100M>;
>  	status = "okay";
>  };
>  
> -- 
> 2.7.4
>