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Message-ID: <05ade4a9-6ae2-6e3a-5223-270b24e6ea24@starfivetech.com>
Date: Mon, 28 Nov 2022 09:15:51 +0800
From: Jianlong Huang <jianlong.huang@...rfivetech.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Hal Feng <hal.feng@...rfivetech.com>,
<linux-riscv@...ts.infradead.org>, <devicetree@...r.kernel.org>,
<linux-gpio@...r.kernel.org>
CC: Conor Dooley <conor@...nel.org>,
Palmer Dabbelt <palmer@...belt.com>,
"Rob Herring" <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Linus Walleij <linus.walleij@...aro.org>,
Emil Renner Berthing <emil.renner.berthing@...onical.com>,
<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 3/5] dt-bindings: pinctrl: Add StarFive JH7110 aon
pinctrl
On Mon, 21 Nov 2022 09:44:00 +0100, Krzysztof Kozlowski wrote:
> On 18/11/2022 02:11, Hal Feng wrote:
>> From: Jianlong Huang <jianlong.huang@...rfivetech.com>
>>
>> Add pinctrl bindings for StarFive JH7110 SoC aon pinctrl controller.
>>
>> Signed-off-by: Jianlong Huang <jianlong.huang@...rfivetech.com>
>> Signed-off-by: Hal Feng <hal.feng@...rfivetech.com>
>> ---
>> .../pinctrl/starfive,jh7110-aon-pinctrl.yaml | 134 ++++++++++++++++++
>> 1 file changed, 134 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/pinctrl/starfive,jh7110-aon-pinctrl.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/pinctrl/starfive,jh7110-aon-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/starfive,jh7110-aon-pinctrl.yaml
>> new file mode 100644
>> index 000000000000..1dd000e1f614
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/pinctrl/starfive,jh7110-aon-pinctrl.yaml
>> @@ -0,0 +1,134 @@
>> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/pinctrl/starfive,jh7110-aon-pinctrl.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: StarFive JH7110 Aon Pin Controller
>> +
>> +description: |
>> + Bindings for the JH7110 RISC-V SoC from StarFive Technology Ltd.
>> +
>> + Out of the SoC's many pins only the ones named PAD_GPIO0 to PAD_GPIO4
>> + can be multiplexed and have configurable bias, drive strength,
>> + schmitt trigger etc.
>> + Some peripherals have their I/O go through the 4 "GPIOs". This also
>> + includes PWM.
>> +
>> +maintainers:
>> + - Jianlong Huang <jianlong.huang@...rfivetech.com>
>> +
>> +properties:
>> + compatible:
>> + const: starfive,jh7110-aon-pinctrl
>> +
>> + reg:
>> + maxItems: 1
>> +
>> + reg-names:
>> + items:
>> + - const: control
>> +
>> + clocks:
>> + maxItems: 1
>> +
>> + resets:
>> + maxItems: 1
>> +
>> + gpio-controller: true
>> +
>> + "#gpio-cells":
>> + const: 2
>> +
>> + interrupts:
>> + maxItems: 1
>> + description: The GPIO parent interrupt.
>
> Same comments apply plus one more.
Will fix, drop this description.
>
>> +
>> + interrupt-controller: true
>> +
>> + "#interrupt-cells":
>> + const: 2
>> +
>> +required:
>> + - compatible
>> + - reg
>> + - reg-names
>> + - gpio-controller
>> + - "#gpio-cells"
>> + - interrupts
>> + - interrupt-controller
>> + - "#interrupt-cells"
>
> "required:" goes after patternProperties.
Will fix.
>
>> +
>> +patternProperties:
>> + '-[0-9]+$':
>
> Same comment.
Will fix.
Keep consistent quotes, use '
>
>> + type: object
>> + patternProperties:
>> + '-pins$':
>> + type: object
>> + description: |
>> + A pinctrl node should contain at least one subnode representing the
>> + pinctrl groups available on the machine. Each subnode will list the
>> + pins it needs, and how they should be configured, with regard to
>> + muxer configuration, system signal configuration, pin groups for
>> + vin/vout module, pin voltage, mux functions for output, mux functions
>> + for output enable, mux functions for input.
>> +
>> + properties:
>> + pinmux:
>> + description: |
>> + The list of GPIOs and their mux settings that properties in the
>> + node apply to. This should be set using the GPIOMUX macro.
>> + $ref: "/schemas/pinctrl/pinmux-node.yaml#/properties/pinmux"
>> +
>> + bias-disable: true
>> +
>> + bias-pull-up:
>> + type: boolean
>> +
>> + bias-pull-down:
>> + type: boolean
>> +
>> + drive-strength:
>> + enum: [ 2, 4, 8, 12 ]
>> +
>> + input-enable: true
>> +
>> + input-disable: true
>> +
>> + input-schmitt-enable: true
>> +
>> + input-schmitt-disable: true
>> +
>> + slew-rate:
>> + maximum: 1
>> +
>> + additionalProperties: false
>> +
>> + additionalProperties: false
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> + - |
>> + #include <dt-bindings/clock/starfive-jh7110.h>
>> + #include <dt-bindings/reset/starfive-jh7110.h>
>> + #include <dt-bindings/pinctrl/pinctrl-starfive-jh7110.h>
>> +
>> + soc {
>> + #address-cells = <2>;
>> + #size-cells = <2>;
>
> Same comment.
Will fix.
Use 4 spaces for example indentation.
>
>> +
>> + gpioa: gpio@...20000 {
>> + compatible = "starfive,jh7110-aon-pinctrl";
>> + reg = <0x0 0x17020000 0x0 0x10000>;
>> + reg-names = "control";
>> + resets = <&aoncrg_rst JH7110_AONRST_AON_IOMUX>;
>> + interrupts = <85>;
>> + interrupt-controller;
>> + #interrupt-cells = <2>;
>> + #gpio-cells = <2>;
>> + gpio-controller;
>> + };
>> + };
>> +
>> +...
>
Best regards,
Jianlong Huang
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