linux-kernel - Re: [PATCH v2 08/19] arm64: dts: imx8mm-evk: Add 32.768 kHz clock to PMIC

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Date:   Mon, 31 Aug 2020 05:30:02 +0000
From:   "Vaittinen, Matti" <Matti.Vaittinen@...rohmeurope.com>
To:     "miquel.raynal@...tlin.com" <miquel.raynal@...tlin.com>,
        "linux-imx@....com" <linux-imx@....com>,
        "vigneshr@...com" <vigneshr@...com>,
        "Anson.Huang@....com" <Anson.Huang@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "richard@....at" <richard@....at>,
        "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzk@...nel.org" <krzk@...nel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "lee.jones@...aro.org" <lee.jones@...aro.org>,
        "festevam@...il.com" <festevam@...il.com>,
        "han.xu@....com" <han.xu@....com>
Subject: Re: [PATCH v2 08/19] arm64: dts: imx8mm-evk: Add 32.768 kHz clock to
 PMIC


On Fri, 2020-08-28 at 18:47 +0200, Krzysztof Kozlowski wrote:
> The ROHM BD71847 PMIC has a 32.768 kHz clock.  Adding necessary
> parent
> allows to probe the bd718x7 clock driver fixing boot errors:
> 
>     bd718xx-clk bd71847-clk.1.auto: No parent clk found
>     bd718xx-clk: probe of bd71847-clk.1.auto failed with error -22
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>

FWIW:
Acked-By: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>

> ---
>  arch/arm64/boot/dts/freescale/imx8mm-evk.dts | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
> b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
> index 3cb8b6bcb657..0115f07bbc9d 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
> @@ -149,6 +149,10 @@
>  		interrupts = <3 GPIO_ACTIVE_LOW>;
>  		rohm,reset-snvs-powered;
>  
> +		#clock-cells = <0>;
> +		clocks = <&osc_32k 0>;
> +		clock-output-names = "clk-32k-out";
> +
>  		regulators {
>  			buck1_reg: BUCK1 {
>  				regulator-name = "buck1";