linux-kernel - Re: [PATCH v12 1/2] spi: add loongson spi bindings

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Message-ID: <9c94397d-1e31-02fa-bdbe-af888c72eac4@loongson.cn>
Date:   Thu, 8 Jun 2023 20:10:38 +0800
From:   zhuyinbo <zhuyinbo@...ngson.cn>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-spi@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Jianmin Lv <lvjianmin@...ngson.cn>, wanghongliang@...ngson.cn,
        Liu Peibao <liupeibao@...ngson.cn>,
        loongson-kernel@...ts.loongnix.cn, zhuyinbo@...ngson.cn
Subject: Re: [PATCH v12 1/2] spi: add loongson spi bindings



在 2023/6/8 下午7:45, Krzysztof Kozlowski 写道:
> On 08/06/2023 13:42, zhuyinbo wrote:
>> --- a/Documentation/devicetree/bindings/spi/loongson,ls2k-spi.yaml
>> +++ b/Documentation/devicetree/bindings/spi/loongson,ls2k-spi.yaml
>> @@ -16,6 +16,7 @@ properties:
>>      compatible:
>>        enum:
>>          - loongson,ls2k1000-spi
>> +      - loongson,ls2k0500-spi
> 
> Aren't they compatible?
> 


Are you saying that the spi driver is compatible with 2k0500 ?
Yes.  and the 2k1000 spi hardware was same with 2k0500 common type spi
hardware.

but afterwards, it may be necessary to implement a clock drvier for
2k0500, because the spi driver was use "devm_clk_get_optional()" to
get clock and not use "of_property_read_u32(np, "clock-frequency",
&clk)",  But this seems to have nothing to do with bindings.


Thanks,
Yinbo