Re: [PATCH v4 2/3] spi: cadence-quadspi: Add clock configuration for StarFive JH7110 QSPI

[William Qiu]

On 2023/7/5 14:21, Krzysztof Kozlowski wrote:
> On 04/07/2023 11:04, William Qiu wrote:
>> Add QSPI clock operation in device probe.
>> 
>> Signed-off-by: William Qiu <william.qiu@xxxxxxxxxxxxxxxx>
>> Reviewed-by: Hal Feng <hal.feng@xxxxxxxxxxxxxxxx>
>> Reported-by: kernel test robot <lkp@xxxxxxxxx>
>> Closes: https://lore.kernel.org/oe-kbuild-all/202306022017.UbwjjWRN-lkp@xxxxxxxxx/
>> Reported-by: Julia Lawall <julia.lawall@xxxxxxxx>
>> Closes: https://lore.kernel.org/r/202306040644.6ZHs55x4-lkp@xxxxxxxxx/
> 
> 
>>  
>> @@ -1840,6 +1858,8 @@ static int cqspi_resume(struct device *dev)
>>  	struct spi_master *master = dev_get_drvdata(dev);
>>  
>>  	clk_prepare_enable(cqspi->clk);
>> +	if (of_device_is_compatible(dev->of_node, "starfive,jh7110-qspi"))
> 
> Don't add compatible checks inside the code. It does not scale. We
> expect compatibles to be listed only in one place - of_device_id - and
> customize driver with match data / quirks / flags.
> 
> Comment applies to all your diff hunks.
> 
I'll use "of_device_get_match_data" to replace it. But the way I added
reset before is also by compatible checks. Should I change this place to 
"of_device_get_match_data" as well?
>> +		clk_bulk_prepare_enable(cqspi->num_clks, cqspi->clks);
>>  	cqspi_wait_idle(cqspi);
>>  	cqspi_controller_init(cqspi);
>>  
> 
> Best regards,
> Krzysztof
>