On 3/28/23 07:35, Andy Shevchenko wrote:
On Tue, Mar 28, 2023 at 04:18:30PM +0200, Nuno Sá wrote:
On Tue, 2023-03-28 at 14:46 +0100, Mark Brown wrote:
On Tue, Mar 28, 2023 at 03:26:44PM +0200, Nuno Sá wrote:
IIRC, regmap_read() is not really reentrant and it is used in the
IIO
driver on the sysfs interface. So, yeah, I think you need the
regmap
lock and better just leave the config as is. Yes, the lock is opt-
out
so let's not disable it :)
All the regmap operations are fully thread safe.
Even if 'config->disable_locking' is set? I think that is what's being
discussed in here...
In case the driver has its own lock to serialize IO how on earth the regmap
lock is needed.
But the driver does not have its own lock.
