Re: [PATCH v2 2/2] spi: amlogic-spifc-a1: add support for max_speed_hz

[Martin Kurbanov]

On 11.07.2023 10:25, Jerome Brunet wrote:
>>  
>> +static int amlogic_spifc_a1_set_freq(struct amlogic_spifc_a1 *spifc, u32 freq)
>> +{
>> +	int ret;
>> +
>> +	if (freq == spifc->curr_speed_hz)
>> +		return 0;
>> +
>> +	ret = clk_set_rate(spifc->clk, freq);
>> +	if (ret)
>> +		return ret;
>> +
>> +	spifc->curr_speed_hz = freq;
> 
> There is no guarantee that clk_set_rate() has set the rate you have
> requested, at least not precisely. You should call clk_get_rate() here.
> 

Hello Jerome, thank you for the feedback.
Are you referring to a situation where there is a change in the rate due
to a request from another client, such as a sibling driver with the same
parent clock?

-- 
Best Regards,
Martin Kurbanov