Re: [PATCH 00/15] MTU3 counter fixes and improvements

[Lee Jones <lee@kernel.org>]

On Mon, 14 Sep 2026, Cosmin Tanislav wrote:

> This series does some code quality improvements to the MTU3 counter
> subdriver, while also fixing bugs and adding caching support so that
> registers are not touched when the counter is disabled, as there is no
> request API.
> 
> Patch 3 relies on the following series to enable runtime PM on the
> parent device so that the PM domain handles it automatically.
> 
> https://lore.kernel.org/lkml/20260914201456.2018403-1-cosmin-gabriel.tanislav.xa@renesas.com/
> 
> Cosmin Tanislav (15):
>   counter: rz-mtu3-cnt: put runtime PM on initialization error path
>   counter: rz-mtu3-cnt: do not assign struct rz_mtu3_channel::dev
>   counter: rz-mtu3-cnt: remove manual runtime PM handling
>   counter: rz-mtu3-cnt: use device-managed pm_runtime_enable()
>   counter: rz-mtu3-cnt: read enable value from cache
>   counter: rz-mtu3-cnt: disable channel before releasing
>   counter: rz-mtu3-cnt: unify ceiling values
>   counter: rz-mtu3-cnt: cache ceiling values
>   counter: rz-mtu3-cnt: cache count values
>   counter: rz-mtu3-cnt: cache function values
>   counter: rz-mtu3-cnt: cache external input phase clock value
>   counter: rz-mtu3-cnt: cache direction values
>   counter: rz-mtu3-cnt: keep cascade_counts_enable in sync with usage
>   counter: rz-mtu3-cnt: drop conditional locks
>   counter: rz-mtu3-cnt: use pm_runtime_resume_and_get()
> 
>  drivers/counter/rz-mtu3-cnt.c | 443 +++++++++++-----------------------
>  1 file changed, 139 insertions(+), 304 deletions(-)

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-- 
Lee Jones