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.