linux-kernel - Re: [PATCH v12 2/2] spi: loongson: add bus driver for the loongson spi controller

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Date:   Fri, 9 Jun 2023 15:13:18 +0800
From:   zhuyinbo <zhuyinbo@...ngson.cn>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     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, 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 2/2] spi: loongson: add bus driver for the loongson
 spi controller



在 2023/6/8 下午6:18, Andy Shevchenko 写道:
> On Thu, Jun 8, 2023 at 1:15 PM Andy Shevchenko
> <andy.shevchenko@...il.com> wrote:
>> On Thu, Jun 8, 2023 at 10:28 AM Yinbo Zhu <zhuyinbo@...ngson.cn> wrote:
>>> +       ret = readb_poll_timeout(loongson_spi->base + LOONGSON_SPI_SPSR_REG, loongson_spi->spsr,
>>> +                       (loongson_spi->spsr & 0x1) != LOONGSON_SPI_SPSR_RFEMPTY, 1, MSEC_PER_SEC);
>>
>>                         (loongson_spi->spsr &
>> LOONGSON_SPI_SPSR_RFEMPTY) != LOONGSON_SPI_SPSR_RFEMPTY,
>>                         1, MSEC_PER_SEC);
> 
> Actually the last should be USEC_PER_MSEC, as the parameter is in microseconds.


okay, I got it.

Thanks
>