linux-kernel - Re: [PATCH v2 2/2] spi: loongson: add bus driver for the loongson spi controller

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Message-ID: <3a0417f2-9e2d-7464-64fe-31d10b168f21@loongson.cn>
Date:   Fri, 24 Mar 2023 11:32:26 +0800
From:   zhuyinbo <zhuyinbo@...ngson.cn>
To:     Mark Brown <broonie@...nel.org>
Cc:     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, Jianmin Lv <lvjianmin@...ngson.cn>,
        wanghongliang@...ngson.cn, Liu Peibao <liupeibao@...ngson.cn>,
        loongson-kernel@...ts.loongnix.cn, zhuyinbo@...ngson.cn
Subject: Re: [PATCH v2 2/2] spi: loongson: add bus driver for the loongson spi
 controller


在 2023/3/23 下午9:59, Mark Brown 写道:
> On Thu, Mar 23, 2023 at 08:46:19PM +0800, zhuyinbo wrote:
>
>> I think add following change and that issue what you said will can be
>> fixed,   in addition, the spin_lock
>> was also not needed.   Do you think so?
>> @@ -101,8 +101,10 @@ static int loongson_spi_setup(struct spi_device *spi)
>>          if (spi->chip_select >= spi->master->num_chipselect)
>>                  return -EINVAL;
>>
>> +       loongson_spi->hz = 0;
>> +       loongson_spi->mode &= SPI_NO_CS;
>> +
>>          spin_lock(&loongson_spi->lock);
>> -       loongson_spi_update_state(loongson_spi, spi, NULL);
> Looks plausible, yes - I'd need to see the full thing to verify.

okay, I will send v3.