[PATCH 01/32] pwm: sun4i: convert to devm_platform_ioremap_resource

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Thu Nov 12 16:14:29 EST 2020

Hello Thierry,

On Thu, Nov 12, 2020 at 08:06:49PM +0100, Thierry Reding wrote:
> I also think that it's overly narrow is scope, so you can't actually
> "blindly" use this helper and I've seen quite a few cases where this was
> unknowingly used for cases where it shouldn't have been used and then
> broke things (because some drivers must not do the request_mem_region()
> for example).

You have a link to such an accident?

> And then there are cases where the driver needs the
> resource for some other purpose, so you can't use the helper either, or
> at least it looses all of its advantages in those cases.

There is devm_platform_get_and_ioremap_resource() for (some of) these

Best regards

Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |
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