linux-kernel - RE: [PATCH V6 1/4] dt-bindings: fsl: scu: add thermal binding

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Message-ID: <DB3PR0402MB39165EFE027405873E8AB4ECF5660@DB3PR0402MB3916.eurprd04.prod.outlook.com>
Date:   Wed, 13 Feb 2019 05:35:51 +0000
From:   Anson Huang <anson.huang@....com>
To:     "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        "catalin.marinas@....com" <catalin.marinas@....com>,
        "will.deacon@....com" <will.deacon@....com>,
        "rui.zhang@...el.com" <rui.zhang@...el.com>,
        "edubezval@...il.com" <edubezval@...il.com>,
        "daniel.lezcano@...aro.org" <daniel.lezcano@...aro.org>,
        Aisheng Dong <aisheng.dong@....com>,
        "ulf.hansson@...aro.org" <ulf.hansson@...aro.org>,
        Daniel Baluta <daniel.baluta@....com>,
        "horms+renesas@...ge.net.au" <horms+renesas@...ge.net.au>,
        Andy Gross <andy.gross@...aro.org>,
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CC:     dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH V6 1/4] dt-bindings: fsl: scu: add thermal binding

Gental ping...

Best Regards!
Anson Huang

> -----Original Message-----
> From: Anson Huang
> Sent: 2019年2月7日 17:53
> To: robh+dt@...nel.org; mark.rutland@....com; shawnguo@...nel.org;
> s.hauer@...gutronix.de; kernel@...gutronix.de; festevam@...il.com;
> catalin.marinas@....com; will.deacon@....com; rui.zhang@...el.com;
> edubezval@...il.com; daniel.lezcano@...aro.org; Aisheng Dong
> <aisheng.dong@....com>; ulf.hansson@...aro.org; Daniel Baluta
> <daniel.baluta@....com>; horms+renesas@...ge.net.au; Andy Gross
> <andy.gross@...aro.org>; heiko@...ech.de; arnd@...db.de;
> maxime.ripard@...tlin.com; jagan@...rulasolutions.com;
> bjorn.andersson@...aro.org; enric.balletbo@...labora.com;
> marc.w.gonzalez@...e.fr; olof@...om.net; devicetree@...r.kernel.org;
> linux-kernel@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; linux-
> pm@...r.kernel.org
> Cc: dl-linux-imx <linux-imx@....com>
> Subject: [PATCH V6 1/4] dt-bindings: fsl: scu: add thermal binding
> 
> NXP i.MX8QXP is an ARMv8 SoC with a Cortex-M4 core inside as system
> controller, the system controller is in charge of system power, clock and
> thermal sensors etc. management, Linux kernel has to communicate with
> system controller via MU (message unit) IPC to get temperature from thermal
> sensors, this patch adds binding doc for i.MX system controller thermal
> driver.
> 
> Signed-off-by: Anson Huang <Anson.Huang@....com>
> Reviewed-by: Rob Herring <robh@...nel.org>
> ---
> ChangeLog since V5:
> 	- add "imx,sensor-resource-id" in each thermal zone to pass resource
> ID for thermal driver.
> ---
>  .../devicetree/bindings/arm/freescale/fsl,scu.txt    | 20
> ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
> b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
> index 72d481c..4b79751 100644
> --- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
> +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
> @@ -122,6 +122,20 @@ RTC bindings based on SCU Message Protocol
> Required properties:
>  - compatible: should be "fsl,imx8qxp-sc-rtc";
> 
> +Thermal bindings based on SCU Message Protocol
> +------------------------------------------------------------
> +
> +Required properties:
> +- compatible : Must be "fsl,imx8qxp-sc-thermal";
> +- tsens-num : Total number of thermal sensors supported;
> +- #thermal-sensor-cells : Should be 1. See
> +
> Documentation/devicetree/bindings/thermal/thermal.txt
> +			  for a description.
> +- imx,sensor-resource-id : This property should be defined in each thermal
> zone
> +			   of thermal-zones node, it passes each thermal
> zone's
> +			   resource id for thermal driver to get temperature
> via
> +			   SCU IPC.
> +
>  Example (imx8qxp):
>  -------------
>  lsio_mu1: mailbox@...c0000 {
> @@ -168,6 +182,12 @@ firmware {
>  		rtc: rtc {
>  			compatible = "fsl,imx8qxp-sc-rtc";
>  		};
> +
> +		tsens: thermal-sensor {
> +			compatible = "fsl,imx8qxp-sc-thermal";
> +			tsens-num = <1>;
> +			#thermal-sensor-cells = <1>;
> +		};
>  	};
>  };
> 
> --
> 2.7.4