[PATCH v3 2/3] i3c: dw: Add sysfs support for Device NACK Retry count

[Ng, Adrian Ho Yin]

On 11/25/2025 1:59 AM, Frank Li wrote:

>> +
>> +	master->dev_nack_retry_cnt = val;
>> +
>> +	spin_lock_irqsave(&master->devs_lock, flags);
> 
> I think you'd better to hold i3c_bus_maintenance_lock() lock to make
> sure not transfer on going.
> 
> Frank
Hi Frank

i3c_bus_maintenance_lock is a static function in master.c. So should i 
update it and expose a public helper to take the maintenance lock or 
continue using the existing spin lock to protect the DAT updates?

Thank You
Adrian
>> +	/*
>> +	 * Update DAT entries for all currently attached devices.
>> +	 * We directly iterate through the master's device array.
>> +	 */
>> +	for (i = 0; i < master->maxdevs; i++) {
>> +		/* Skip free/empty slots */