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] [day] [month] [year] [list]
Date:   Wed, 27 Feb 2019 08:47:00 +0000
From:   Anson Huang <anson.huang@....com>
To:     Aisheng Dong <aisheng.dong@....com>,
        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>,
        "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



Best Regards!
Anson Huang

> -----Original Message-----
> From: Aisheng Dong
> Sent: 2019年2月26日 20:01
> To: Anson Huang <anson.huang@....com>; Eduardo Valentin
> <edubezval@...il.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; 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>
> 
> You need drop the former Reviewed-by once there's significant changes.
> 
> > > > +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?
> >
> 
> Device tree is used to describe HW.
> #thermal-sensor-cells is less to be an optional parameter to me.
> If HW supports, then it should be 1 and update the example accordingly.

OK, I changed it to "1" in V10 patch series.

Thanks,
Anson.

> 
> Regards
> Dong Aisheng
> 
> >  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.

Powered by blists - more mailing lists