Re: [PATCH 0/3] opp: Add bw_factor support to adjust bandwidth dynamically

[Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>]

On 8/4/2025 4:43 PM, Viresh Kumar wrote:
> On 01-08-25, 15:05, Krishna Chaitanya Chundru wrote:
>> Currently we are fetching the OPP based on the frequency and setting
>> that OPP using dev_pm_opp_set_opp().
>>
>> As you are suggesting to use dev_pm_opp_set_prop_name() here.
>> This what I understood
>>
>> First set prop name using dev_pm_opp_set_prop_name then
>> set opp dev_pm_opp_set_opp()
>>
>> if you want to change above one we need to first clear using
>> dev_pm_opp_put_prop_name() then again call dev_pm_opp_set_prop_name
>> & dev_pm_opp_set_opp()
> 
> dev_pm_opp_set_prop_name() should be called only once at boot time and not
> again later on. It is there to configure one of the named properties before the
> OPP table initializes for a device. Basically it is there to select one of the
> available properties for an OPP, like selecting a voltage applicable for an OPP
> for a device.
Then we can't use this dev_pm_opp_set_prop_name(), there is possibility
link width x1, x2, x4 etc can also change at runtime.

- Krishna Chaitanya.
>