[v1] support for amlogic rtc

[PATCH 1/3] dt-bindings: rtc: Add Amlogic A311L2 and A113X2 rtc

Posted by Xianwei Zhao via B4 Relay 1 year, 5 months ago

From: Yiting Deng <yiting.deng@amlogic.com>

Add documentation describing the Amlogic A113L2 and A113X2 rtc controller.

Signed-off-by: Yiting Deng <yiting.deng@amlogic.com>
Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
---
 .../bindings/rtc/amlogic,amlogic-rtc.yaml          | 66 ++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/Documentation/devicetree/bindings/rtc/amlogic,amlogic-rtc.yaml b/Documentation/devicetree/bindings/rtc/amlogic,amlogic-rtc.yaml
new file mode 100644
index 000000000000..fa3d7838022e
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/amlogic,amlogic-rtc.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2024 Amlogic, Inc. All rights reserved
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/amlogic,amlogic-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Real Time Clock controller include a4, a5
+
+maintainers:
+  - Yiting Deng <yiting.deng@amlogic.com>
+  - Xianwei Zhao <xianwei.zhao@amlogic.com>
+
+description:
+  The Amlogic new chips used RTC module.
+
+allOf:
+  - $ref: rtc.yaml#
+
+properties:
+  compatible:
+    enum:
+      - amlogic,a4-rtc
+      - amlogic,a5-rtc
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: RTC clock source, available 24M or 32K crystal
+          oscillator source. when using 24M, need to divide 24M into 32K.
+      - description: RTC module accesses the clock of the apb bus.
+
+  clock-names:
+    items:
+      - const: rtc_osc
+      - const: rtc_sys_clk
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - interrupts
+  - reg
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    apb {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        rtc: rtc@8e600 {
+            compatible = "amlogic,a4-rtc";
+            interrupts = <GIC_SPI 131 IRQ_TYPE_EDGE_RISING>;
+            reg = <0x0 0x8e600 0x0 0x38>;
+            clocks = <&xtal_32k>, <&clkc_periphs 1>;
+            clock-names = "rtc_osc", "rtc_sys_clk";
+        };
+    };

-- 
2.37.1

Re: [PATCH 1/3] dt-bindings: rtc: Add Amlogic A311L2 and A113X2 rtc

Posted by Conor Dooley 1 year, 5 months ago

On Fri, Aug 23, 2024 at 05:19:44PM +0800, Xianwei Zhao via B4 Relay wrote:
> From: Yiting Deng <yiting.deng@amlogic.com>
> 
> Add documentation describing the Amlogic A113L2 and A113X2 rtc controller.
> 
> Signed-off-by: Yiting Deng <yiting.deng@amlogic.com>
> Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
> ---
>  .../bindings/rtc/amlogic,amlogic-rtc.yaml          | 66 ++++++++++++++++++++++
>  1 file changed, 66 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/rtc/amlogic,amlogic-rtc.yaml b/Documentation/devicetree/bindings/rtc/amlogic,amlogic-rtc.yaml
> new file mode 100644
> index 000000000000..fa3d7838022e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/amlogic,amlogic-rtc.yaml

Filename matching a compatible please.

> @@ -0,0 +1,66 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright (C) 2024 Amlogic, Inc. All rights reserved
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/rtc/amlogic,amlogic-rtc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Amlogic Real Time Clock controller include a4, a5
> +
> +maintainers:
> +  - Yiting Deng <yiting.deng@amlogic.com>
> +  - Xianwei Zhao <xianwei.zhao@amlogic.com>
> +
> +description:
> +  The Amlogic new chips used RTC module.
> +
> +allOf:
> +  - $ref: rtc.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - amlogic,a4-rtc
> +      - amlogic,a5-rtc

The names you have chosen here do not match the patch description. What
is going on there?

> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: RTC clock source, available 24M or 32K crystal
> +          oscillator source. when using 24M, need to divide 24M into 32K.
> +      - description: RTC module accesses the clock of the apb bus.
> +
> +  clock-names:
> +    items:
> +      - const: rtc_osc
> +      - const: rtc_sys_clk

s/_clk//, they're all clocks.

> +
> +  interrupts:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - interrupts
> +  - reg
> +  - clocks
> +  - clock-names
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    apb {
> +        #address-cells = <2>;
> +        #size-cells = <2>;
> +
> +        rtc: rtc@8e600 {

And the label here can go, you've got no references to it :)

Thanks,
Conor.

> +            compatible = "amlogic,a4-rtc";
> +            interrupts = <GIC_SPI 131 IRQ_TYPE_EDGE_RISING>;
> +            reg = <0x0 0x8e600 0x0 0x38>;
> +            clocks = <&xtal_32k>, <&clkc_periphs 1>;
> +            clock-names = "rtc_osc", "rtc_sys_clk";
> +        };
> +    };
> 
> -- 
> 2.37.1
> 
>

Re: [PATCH 1/3] dt-bindings: rtc: Add Amlogic A311L2 and A113X2 rtc

Posted by Xianwei Zhao 1 year, 5 months ago

Hi Conor,
    Thanks for your reply.

On 2024/8/23 23:51, Conor Dooley wrote:
> Subject:
> Re: [PATCH 1/3] dt-bindings: rtc: Add Amlogic A311L2 and A113X2 rtc
> From:
> Conor Dooley <conor@kernel.org>
> Date:
> 2024/8/23 23:51
> 
> To:
> xianwei.zhao@amlogic.com
> CC:
> Yiting Deng <yiting.deng@amlogic.com>, Alexandre Belloni 
> <alexandre.belloni@bootlin.com>, Rob Herring <robh@kernel.org>, 
> Krzysztof Kozlowski <krzk+dt@kernel.org>, Conor Dooley 
> <conor+dt@kernel.org>, linux-amlogic@lists.infradead.org, 
> linux-rtc@vger.kernel.org, devicetree@vger.kernel.org, 
> linux-kernel@vger.kernel.org
> 
> 
> On Fri, Aug 23, 2024 at 05:19:44PM +0800, Xianwei Zhao via B4 Relay wrote:
>> From: Yiting Deng<yiting.deng@amlogic.com>
>>
>> Add documentation describing the Amlogic A113L2 and A113X2 rtc controller.
>>
>> Signed-off-by: Yiting Deng<yiting.deng@amlogic.com>
>> Signed-off-by: Xianwei Zhao<xianwei.zhao@amlogic.com>
>> ---
>>   .../bindings/rtc/amlogic,amlogic-rtc.yaml          | 66 ++++++++++++++++++++++
>>   1 file changed, 66 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/rtc/amlogic,amlogic-rtc.yaml b/Documentation/devicetree/bindings/rtc/amlogic,amlogic-rtc.yaml
>> new file mode 100644
>> index 000000000000..fa3d7838022e
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/rtc/amlogic,amlogic-rtc.yaml
> Filename matching a compatible please.
> 

Will do, modify the name to "amlogic,a4-rtc.yaml".

>> @@ -0,0 +1,66 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +# Copyright (C) 2024 Amlogic, Inc. All rights reserved
>> +%YAML 1.2
>> +---
>> +$id:http://devicetree.org/schemas/rtc/amlogic,amlogic-rtc.yaml#
>> +$schema:http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Amlogic Real Time Clock controller include a4, a5
>> +
>> +maintainers:
>> +  - Yiting Deng<yiting.deng@amlogic.com>
>> +  - Xianwei Zhao<xianwei.zhao@amlogic.com>
>> +
>> +description:
>> +  The Amlogic new chips used RTC module.
>> +
>> +allOf:
>> +  - $ref: rtc.yaml#
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +      - amlogic,a4-rtc
>> +      - amlogic,a5-rtc
> The names you have chosen here do not match the patch description. What
> is going on there?
> 

Will modify description to "Add Amlogic A4(A311L2) and A5(A113X2) rtc".

>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  clocks:
>> +    items:
>> +      - description: RTC clock source, available 24M or 32K crystal
>> +          oscillator source. when using 24M, need to divide 24M into 32K.
>> +      - description: RTC module accesses the clock of the apb bus.
>> +
>> +  clock-names:
>> +    items:
>> +      - const: rtc_osc
>> +      - const: rtc_sys_clk
> s/_clk//, they're all clocks.
> 

Will do.

>> +
>> +  interrupts:
>> +    maxItems: 1
>> +
>> +required:
>> +  - compatible
>> +  - interrupts
>> +  - reg
>> +  - clocks
>> +  - clock-names
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
>> +    apb {
>> +        #address-cells = <2>;
>> +        #size-cells = <2>;
>> +
>> +        rtc: rtc@8e600 {
> And the label here can go, you've got no references to it 🙂
> 

Will delte rtc  label.

> Thanks,
> Conor.
> 
>> +            compatible = "amlogic,a4-rtc";
>> +            interrupts = <GIC_SPI 131 IRQ_TYPE_EDGE_RISING>;
>> +            reg = <0x0 0x8e600 0x0 0x38>;
>> +            clocks = <&xtal_32k>, <&clkc_periphs 1>;
>> +            clock-names = "rtc_osc", "rtc_sys_clk";
>> +        };
>> +    };
>>
>> -- 
>> 2.37.1