linux-kernel - Re: [PATCH 05/12] dt-bindings: rtc: renesas,rzg3s-rtc: Document the Renesas RZ/G3S RTC

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Date: Fri, 14 Jun 2024 11:16:43 +0300
From: claudiu beznea <claudiu.beznea@...on.dev>
To: Biju Das <biju.das.jz@...renesas.com>,
 "geert+renesas@...der.be" <geert+renesas@...der.be>,
 "mturquette@...libre.com" <mturquette@...libre.com>,
 "sboyd@...nel.org" <sboyd@...nel.org>, "robh@...nel.org" <robh@...nel.org>,
 "krzk+dt@...nel.org" <krzk+dt@...nel.org>,
 "conor+dt@...nel.org" <conor+dt@...nel.org>, "lee@...nel.org"
 <lee@...nel.org>,
 "alexandre.belloni@...tlin.com" <alexandre.belloni@...tlin.com>,
 "magnus.damm@...il.com" <magnus.damm@...il.com>
Cc: "linux-renesas-soc@...r.kernel.org" <linux-renesas-soc@...r.kernel.org>,
 "linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>,
 "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
 "linux-rtc@...r.kernel.org" <linux-rtc@...r.kernel.org>,
 "linux-arm-kernel@...ts.infradead.org"
 <linux-arm-kernel@...ts.infradead.org>,
 Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
Subject: Re: [PATCH 05/12] dt-bindings: rtc: renesas,rzg3s-rtc: Document the
 Renesas RZ/G3S RTC

Hi, Biju,

On 14.06.2024 10:53, Biju Das wrote:
> Hi Claudiu,
> 
> Thanks for the patch.
> 
>> -----Original Message-----
>> From: linux-arm-kernel <linux-arm-kernel-bounces@...ts.infradead.org> On Behalf Of Claudiu
>> Sent: Friday, June 14, 2024 8:19 AM
>> Subject: [PATCH 05/12] dt-bindings: rtc: renesas,rzg3s-rtc: Document the Renesas RZ/G3S RTC
>>
>> From: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
>>
>> Document the RTC IP (RTCA-3) available on the Renesas RZ/G3S SoC.
>>
>> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
>> ---
>>  .../bindings/rtc/renesas,rzg3s-rtc.yaml       | 60 +++++++++++++++++++
>>  1 file changed, 60 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/rtc/renesas,rzg3s-rtc.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/rtc/renesas,rzg3s-rtc.yaml
>> b/Documentation/devicetree/bindings/rtc/renesas,rzg3s-rtc.yaml
>> new file mode 100644
>> index 000000000000..0e17f8a36155
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/rtc/renesas,rzg3s-rtc.yaml
>> @@ -0,0 +1,60 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/rtc/renesas,rzg3s-rtc.yaml#
> 
> Please make it generic renesas,rtca3-rtc.yaml. Future SoCs may use this IP.
> So use IP name instead.

>From what I know the file name should correspond with the compatible that
file was introduced with, and this one shouldn't be generic but SoC specific.

Thank you,
Claudiu Beznea

> 
> Cheers,
> Biju
> 
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Real Time Clock for Renesas RZ/G3S SoC
>> +
>> +maintainers:
>> +  - Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
>> +
>> +properties:
>> +  compatible:
>> +    const: renesas,rzg3s-rtc
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  interrupts:
>> +    maxItems: 3
>> +
>> +  interrupt-names:
>> +    items:
>> +      - const: alarm
>> +      - const: period
>> +      - const: carry
>> +
>> +  clocks:
>> +    maxItems: 1
>> +    description: RTC counter clock
>> +
>> +  clock-names:
>> +    maxItems: 1
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - interrupts
>> +  - interrupt-names
>> +  - clocks
>> +  - clock-names
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
>> +    #include <dt-bindings/interrupt-controller/irq.h>
>> +
>> +    rtc: rtc@...4ec00 {
>> +        compatible = "renesas,rzg3s-rtc";
>> +        reg = <0x1004ec00 0x400>;
>> +        interrupts = <GIC_SPI 315 IRQ_TYPE_LEVEL_HIGH>,
>> +                     <GIC_SPI 316 IRQ_TYPE_LEVEL_HIGH>,
>> +                     <GIC_SPI 317 IRQ_TYPE_LEVEL_HIGH>;
>> +        interrupt-names = "alarm", "period", "carry";
>> +        clocks = <&vbattclk>;
>> +        clock-names = "counter";
>> +        status = "disabled";
>> +    };
>> --
>> 2.39.2
>>
>