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SubjectRe: [PATCH 3/3] arm64: dts: nuvoton: Add initial support for MA35D1
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On 2022/4/6 下午 03:14, Krzysztof Kozlowski wrote:
> On 06/04/2022 04:58, Jacky Huang wrote:
>>>> diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
>>>> index 639e01a4d855..28e01442094f 100644
>>>> --- a/arch/arm64/boot/dts/Makefile
>>>> +++ b/arch/arm64/boot/dts/Makefile
>>>> @@ -30,3 +30,4 @@ subdir-y += synaptics
>>>> subdir-y += ti
>>>> subdir-y += toshiba
>>>> subdir-y += xilinx
>>>> +subdir-y += nuvoton
>>>> diff --git a/arch/arm64/boot/dts/nuvoton/Makefile b/arch/arm64/boot/dts/nuvoton/Makefile
>>>> new file mode 100644
>>>> index 000000000000..e1e0c466bf5e
>>>> --- /dev/null
>>>> +++ b/arch/arm64/boot/dts/nuvoton/Makefile
>>>> @@ -0,0 +1,2 @@
>>>> +# SPDX-License-Identifier: GPL-2.0
>>>> +dtb-$(CONFIG_ARCH_NUVOTON) += ma35d1-evb.dtb
>>> ARCH_NUVOTON does not exist.
>> I would add the following to end of arch/arm64/Kconfig.platforms,
> Don't add things at the end of files but rather in respective place
> without messing the order.

OK, I will put it to the right place in alphanumeric order.
It should be between ARCH_MXC and ARCH_QCOM.

>
>> and
>> add the
>> modification to this patch series.
>>
>> config ARCH_MA35D1
>>     bool "Nuvoton MA35D1 SOC Family"
> We do not add options for specific SoCs, but for entire families, so
> ARCH_NUVOTON is correct.

Yes, I would like to modify it as the following:

config ARCH_NUVOTON
    bool "Nuvoton SoC Family"
    select PINCTRL
    select PINCTRL_MA35D1
    select PM
    select GPIOLIB
    select SOC_BUS
    help
      This enables support for Nuvoton MA35D1 ARMv8 SoC.

(Currently, we have MA35D1 only in the support list for arm64 SoC.).

>>     select PINCTRL
>>     select PINCTRL_MA35D1
>>     select PM
>>     select GPIOLIB
>>     select SOC_BUS
>>     select VIDEOMODE_HELPERS
>>     select FB_MODE_HELPERS
>>     help
>>       This enables support for Nuvoton MA35D1 SOC Family.
>>
>>
>>>> diff --git a/arch/arm64/boot/dts/nuvoton/ma35d1-evb.dts b/arch/arm64/boot/dts/nuvoton/ma35d1-evb.dts
>>>> new file mode 100644
>>>> index 000000000000..38e4f734da0f
>>>> --- /dev/null
>>>> +++ b/arch/arm64/boot/dts/nuvoton/ma35d1-evb.dts
>>>> @@ -0,0 +1,23 @@
>>>> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
>>>> +/*
>>>> + * Device Tree Source for MA35D1 Evaluation Board (EVB)
>>>> + *
>>>> + * Copyright (C) 2021 Nuvoton Technology Corp.
>>>> + */
>>>> +
>>>> +/dts-v1/;
>>>> +#include "ma35d1.dtsi"
>>>> +
>>>> +/ {
>>>> + model = "Nuvoton MA35D1-EVB";
>>>> +
>>>> + chosen {
>>>> + bootargs = "console=ttyS0,115200n8";
>>> No bootargs. "chosen", please.
>> OK, I would modify it as:
>>
>> chosen {
>>         stdout-path = "serial0:115200n8";
>>     };
>>
>>
>>>> + };
>>> You need compatible and bindings.
>> I will add the compatible here
>> compatible = "nuvoton,ma35d1-evb", "nuvoton,ma35d1"
>>
>> And, I should create a new binding file
>> Documentation/devicetree/bindings/arm/nuvoton.yaml to this patch series.
>> And the property would be:
>>
>> properties:
>>   compatible:
>>     description: Nuvoton MA35D1-EVB
>>     items:
>>       - const: nuvoton,ma35d1-evb
>>       - const: nuvoton,ma35d1
>>
>>
>> Is it OK?
> Yes
>
>
>
> Best regards,
> Krzysztof

Thanks for your review.

Sincerely,
Jacky


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