From mboxrd@z Thu Jan 1 00:00:00 1970 From: robh@kernel.org (Rob Herring) Date: Wed, 25 May 2016 12:09:12 -0500 Subject: [PATCH 1/3] Documentation: dtb: xgene: Add hwmon dts binding documentation In-Reply-To: References: <1463415447-29903-1-git-send-email-hotran@apm.com> <1463415447-29903-2-git-send-email-hotran@apm.com> <20160523203044.GA17450@rob-hp-laptop> Message-ID: <20160525170912.GA24382@rob-hp-laptop> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, May 23, 2016 at 06:01:14PM -0700, Hoan Tran wrote: > Hi Rob, > > Thanks for your review ! > > On Mon, May 23, 2016 at 1:30 PM, Rob Herring wrote: > > > > On Mon, May 16, 2016 at 09:17:25AM -0700, Hoan Tran wrote: > > > This patch adds the APM X-Gene hwmon device tree node documentation. > > > > > > Signed-off-by: Hoan Tran > > > --- > > > .../devicetree/bindings/hwmon/apm-xgene-hwmon.txt | 14 ++++++++++++++ > > > 1 file changed, 14 insertions(+) > > > create mode 100644 Documentation/devicetree/bindings/hwmon/apm-xgene-hwmon.txt > > > > > > diff --git a/Documentation/devicetree/bindings/hwmon/apm-xgene-hwmon.txt b/Documentation/devicetree/bindings/hwmon/apm-xgene-hwmon.txt > > > new file mode 100644 > > > index 0000000..49a482e > > > --- /dev/null > > > +++ b/Documentation/devicetree/bindings/hwmon/apm-xgene-hwmon.txt > > > @@ -0,0 +1,14 @@ > > > +APM X-Gene hwmon driver > > > + > > > +Hwmon driver accesses sensors over the "SLIMpro" mailbox. > > > > DT bindings describe h/w, not driver data. > How about this description: "APM X-Gene SOC sensors are accessed over > the "SLIMpro" mailbox" ? > > I'm not sure this belongs in > > DT and perhaps the devices for the mailbox should be created by the > > mailbox driver. > I don't think the current mailbox supports it. Then add it. The mailbox binding is really only needed when other h/w blocks use a mailbox. As this is purely a firmware interface then the mailbox driver can create any devices it needs. The devices don't have to be in DT to be created. Rob