[PATCH v4 9/9] mfd: syscon: add Atmel GPBR DT bindings documention

Lee Jones lee.jones at linaro.org
Wed Sep 17 14:32:16 PDT 2014


On Wed, 17 Sep 2014, Boris BREZILLON wrote:
> On Wed, 17 Sep 2014 09:34:05 -0700
> Lee Jones <lee.jones at linaro.org> wrote:
> 
> > On Thu, 11 Sep 2014, Boris BREZILLON wrote:
> > 
> > > The GPBR block provides a set of battery-backed registers that can be used
> > > to save data which need to be kept when the system is powered down and
> > > VDD-core is maintained by an external battery.
> > > 
> > > A typical usage is the RTT block (when used as an RTC) which needs one of
> > > those registers to save the current time.
> > > 
> > > Signed-off-by: Boris BREZILLON <boris.brezillon at free-electrons.com>
> > > ---
> > >  Documentation/devicetree/bindings/mfd/atmel,gpbr.txt | 15 +++++++++++++++
> > >  1 file changed, 15 insertions(+)
> > >  create mode 100644 Documentation/devicetree/bindings/mfd/atmel,gpbr.txt
> > > 
> > > diff --git a/Documentation/devicetree/bindings/mfd/atmel,gpbr.txt b/Documentation/devicetree/bindings/mfd/atmel,gpbr.txt
> > > new file mode 100644
> > > index 0000000..a285695
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/mfd/atmel,gpbr.txt
> > > @@ -0,0 +1,15 @@
> > > +* Device tree bindings for Atmel GPBR (General Purpose Backup Registers)
> > > +
> > > +The GPBR are a set of battery-backed registers.
> > > +
> > > +Required properties:
> > > +- compatible:		"atmel,at91sam9260-gpbr", "syscon"
> > > +- reg:			contains offset/length value of the GPBR memory
> > > +			region.
> > > +
> > > +Example:
> > > +
> > > +gpbr: gpbr at fffffd50 {
> > 
> > Is something referencing this node via phandle?  If not, please remove
> > the label.
> 
> Yes, the rtt device is referencing it in its atmel,rtt-rtc-time-reg
> property (see patch 8 of this series).

How can I?  You only sent me patch 9.

Patch looks good, I'm going to apply it.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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