Re: [PATCH V3 1/2] dt-bindings: rtc: zynqmp: Add clock information

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Hello Srinivas,

On 30/11/2021 06:37:45+0000, Radhey Shyam Pandey wrote:
> > -----Original Message-----
> > From: Srinivas Neeli <srinivas.neeli@xxxxxxxxxx>
> > Sent: Tuesday, November 30, 2021 11:26 AM
> > To: a.zummo@xxxxxxxxxxxx; alexandre.belloni@xxxxxxxxxxx; Michal Simek
> > <michals@xxxxxxxxxx>; Srinivas Goud <sgoud@xxxxxxxxxx>; Shubhrajyoti Datta
> > <shubhraj@xxxxxxxxxx>; Radhey Shyam Pandey <radheys@xxxxxxxxxx>
> > Cc: linux-rtc@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-
> > kernel@xxxxxxxxxxxxxxx; git <git@xxxxxxxxxx>; Srinivas Neeli
> > <sneeli@xxxxxxxxxx>
> > Subject: [PATCH V3 1/2] dt-bindings: rtc: zynqmp: Add clock information
> > 
> > Added clock information and deprecated calibration support.
> 
> Better to also add some background for this change.
> > 
> > Signed-off-by: Srinivas Neeli <srinivas.neeli@xxxxxxxxxx>
> 
> Please add Rob and DT mailing list.
> 

I'm indeed waiting on Rob's review...

> ./scripts/get_maintainer.pl <.patch>
> > ---
> > Changes in V3:
> > -New patch
> > ---
> >  .../bindings/rtc/xlnx,zynqmp-rtc.yaml         | 20 +++++++++----------
> >  1 file changed, 10 insertions(+), 10 deletions(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/rtc/xlnx,zynqmp-rtc.yaml
> > b/Documentation/devicetree/bindings/rtc/xlnx,zynqmp-rtc.yaml
> > index bdb72d3ddf2a..7e87bc1ef9df 100644
> > --- a/Documentation/devicetree/bindings/rtc/xlnx,zynqmp-rtc.yaml
> > +++ b/Documentation/devicetree/bindings/rtc/xlnx,zynqmp-rtc.yaml
> > @@ -26,20 +26,19 @@ properties:
> >    interrupts:
> >      minItems: 2
> > 
> > +  clocks:
> > +    items:
> > +      - description: rtc_clk is the operating frequency of crystal.
> > +
> > +  clock-names:
> > +    items:
> > +      - const: "rtc_clk"
> > +
> >    interrupt-names:
> >      items:
> >        - const: alarm
> >        - const: sec
> > 
> > -  calibration:
> 
> What about existing users for this property?
> > -    description: |
> > -      calibration value for 1 sec period which will
> > -      be programmed directly to calibration register.
> > -    $ref: /schemas/types.yaml#/definitions/uint32
> > -    minimum: 0x1
> > -    maximum: 0x1FFFFF
> > -    default: 0x198233
> > -

I think this needs to stay to mark it as deprecated.

> >  required:
> >    - compatible
> >    - reg
> > @@ -60,6 +59,7 @@ examples:
> >          interrupt-parent = <&gic>;
> >          interrupts = <0 26 4>, <0 27 4>;
> >          interrupt-names = "alarm", "sec";
> > -        calibration = <0x198233>;
> > +        clock-names = "rtc_clk";
> > +        clocks = <&rtc_clk>;
> >        };
> >      };
> > --
> > 2.17.1
> 

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com



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