On Fri, Apr 30, 2021 at 03:06:44PM +0200, Michael Walle wrote:
Sometimes a driver needs to know if the underlying regmap could sleep.
For example, consider the gpio-regmap driver which needs to fill the
Whatever is creating the regmap really ought to know what device it's
It might be possible to pass this information via the
gpio_regmap_config, but this has the following drawbacks. First, that
property is redundant and both places might contratict each other. And
secondly, the driver might not even know the type of the regmap because
it just gets an opaque pointer by querying the device tree.
If it's a generic GPIO driver from a code correctness point of view it's
always got a risk of sleeping...