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

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Message-ID: <SA1PR02MB8560D9A6A6C90DC1A90A2364C7679@SA1PR02MB8560.namprd02.prod.outlook.com>
Date:   Tue, 30 Nov 2021 06:37:45 +0000
From:   Radhey Shyam Pandey <radheys@...inx.com>
To:     Srinivas Neeli <sneeli@...inx.com>,
        "a.zummo@...ertech.it" <a.zummo@...ertech.it>,
        "alexandre.belloni@...tlin.com" <alexandre.belloni@...tlin.com>,
        Michal Simek <michals@...inx.com>,
        Srinivas Goud <sgoud@...inx.com>,
        Shubhrajyoti Datta <shubhraj@...inx.com>
CC:     "linux-rtc@...r.kernel.org" <linux-rtc@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        git <git@...inx.com>, Srinivas Neeli <sneeli@...inx.com>
Subject: RE: [PATCH V3 1/2] dt-bindings: rtc: zynqmp: Add clock information

> -----Original Message-----
> From: Srinivas Neeli <srinivas.neeli@...inx.com>
> Sent: Tuesday, November 30, 2021 11:26 AM
> To: a.zummo@...ertech.it; alexandre.belloni@...tlin.com; Michal Simek
> <michals@...inx.com>; Srinivas Goud <sgoud@...inx.com>; Shubhrajyoti Datta
> <shubhraj@...inx.com>; Radhey Shyam Pandey <radheys@...inx.com>
> Cc: linux-rtc@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; linux-
> kernel@...r.kernel.org; git <git@...inx.com>; Srinivas Neeli
> <sneeli@...inx.com>
> 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@...inx.com>

Please add Rob and DT mailing list.

./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
> -
>  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