lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Sun, 24 Feb 2019 02:53:44 +0000
From:   Anson Huang <anson.huang@....com>
To:     Eduardo Valentin <edubezval@...il.com>
CC:     "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>,
        "daniel.lezcano@...aro.org" <daniel.lezcano@...aro.org>,
        Aisheng Dong <aisheng.dong@....com>,
        "ulf.hansson@...aro.org" <ulf.hansson@...aro.org>,
        "sboyd@...nel.org" <sboyd@...nel.org>,
        Daniel Baluta <daniel.baluta@....com>,
        Andy Gross <andy.gross@...aro.org>,
        "horms+renesas@...ge.net.au" <horms+renesas@...ge.net.au>,
        "heiko@...ech.de" <heiko@...ech.de>,
        "arnd@...db.de" <arnd@...db.de>,
        "maxime.ripard@...tlin.com" <maxime.ripard@...tlin.com>,
        "bjorn.andersson@...aro.org" <bjorn.andersson@...aro.org>,
        "jagan@...rulasolutions.com" <jagan@...rulasolutions.com>,
        "enric.balletbo@...labora.com" <enric.balletbo@...labora.com>,
        "marc.w.gonzalez@...e.fr" <marc.w.gonzalez@...e.fr>,
        "olof@...om.net" <olof@...om.net>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH V8 1/4] dt-bindings: fsl: scu: add thermal binding

Hi, Eduardo

Best Regards!
Anson Huang

> -----Original Message-----
> From: Eduardo Valentin [mailto:edubezval@...il.com]
> Sent: 2019年2月24日 5:38
> To: Anson Huang <anson.huang@....com>
> Cc: 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;
> daniel.lezcano@...aro.org; Aisheng Dong <aisheng.dong@....com>;
> ulf.hansson@...aro.org; sboyd@...nel.org; Daniel Baluta
> <daniel.baluta@....com>; Andy Gross <andy.gross@...aro.org>;
> horms+renesas@...ge.net.au; heiko@...ech.de; arnd@...db.de;
> maxime.ripard@...tlin.com; bjorn.andersson@...aro.org;
> jagan@...rulasolutions.com; 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; dl-linux-imx <linux-imx@....com>
> Subject: Re: [PATCH V8 1/4] dt-bindings: fsl: scu: add thermal binding
> 
> On Thu, Feb 21, 2019 at 06:38:30AM +0000, Anson Huang wrote:
> > 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>
> > ---
> > Changes since V7:
> >         - remove unused property "tsens-num";
> >         - improve the compatible description;
> >         - update examples according to latest dts file.
> > ---
> >  .../devicetree/bindings/arm/freescale/fsl,scu.txt     | 19
> +++++++++++++++++++
> >  1 file changed, 19 insertions(+)
> >
> > diff --git
> > a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
> > b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
> > index 72d481c..d89147e 100644
> > --- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
> > +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
> > @@ -122,6 +122,19 @@ 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:			Should be :
> > +				  "fsl,imx8qxp-sc-thermal"
> > +				followed by "fsl,imx-sc-thermal";
> > +
> > +- #thermal-sensor-cells:	See
> Documentation/devicetree/bindings/thermal/thermal.txt
> > +				for a description.
> > +
> > +- imx,sensor-resource-id: 	Property array to specify each thermal zone's
> sensor resource ID.
> 
> If this is an array...
> 
> > +
> >  Example (imx8qxp):
> >  -------------
> >  lsio_mu1: mailbox@...c0000 {
> > @@ -168,6 +181,12 @@ firmware {
> >  		rtc: rtc {
> >  			compatible = "fsl,imx8qxp-sc-rtc";
> >  		};
> > +
> > +		tsens: thermal-sensor {
> > +			compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-
> thermal";
> > +			#thermal-sensor-cells = <0>;
> > +			imx,sensor-resource-id = <IMX_SC_R_SYSTEM>;
> 
> then this example should have an array, to be better express how this is
> supposed to work. Can you please resend this with an array instead?

On i.MX8QXP, there is ONLY 1 thermal zone available currently, but the thermal driver
is supposed to support multi thermal zones as well for i.MX8QM, in V9 patch set I just
sent, I use the " imx,sensor-resource-id " element count to determine how many thermal
sensors will be supported, so that we can also get rid of searching the thermal-zones' child
node, I improved the description as below, is it OK? 

 41 +- imx,sensor-resource-id:      A single integer for single thermal zone's resource ID or
 42 +                               an array of integers to specify each thermal zone's sensor
 43 +                               resource ID.


Thanks,
Anson.

> 
> > +		};
> >  	};
> >  };
> >
> > --
> > 2.7.4
> >

Powered by blists - more mailing lists