Re: [PATCH v1 2/3] thermal/debugfs: Pass cooling device state to thermal_debug_cdev_add()

From: Rafael J. Wysocki
Date: Thu Apr 25 2024 - 08:37:05 EST


Hi Lukasz,

On Thu, Apr 25, 2024 at 12:02 PM Lukasz Luba <lukasz.luba@xxxxxxx> wrote:
>
> Hi Rafael,
>
> On 4/23/24 19:00, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
> >
> > If cdev_dt_seq_show() runs before the first state transition of a cooling
> > device, it will not print any state residency information for it, even
> > though it might be reasonably expected to print residency information for
> > the initial state of the cooling device.
> >
> > For this reason, rearrange the code to get the initial state of a cooling
> > device at the registration time and pass it to thermal_debug_cdev_add(),
> > so that the latter can create a duration record for that state which will
> > allow cdev_dt_seq_show() to print its residency information.
> >
> > Fixes: 755113d76786 ("thermal/debugfs: Add thermal cooling device debugfs information")
> > Reported-by: Lukasz Luba <lukasz.luba@xxxxxxx>
> > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
> > ---
> > drivers/thermal/thermal_core.c | 9 +++++++--
> > drivers/thermal/thermal_debugfs.c | 12 ++++++++++--
> > drivers/thermal/thermal_debugfs.h | 4 ++--
> > 3 files changed, 19 insertions(+), 6 deletions(-)
> >
>
> I'm trying to test it on my board and do the review, but faced issue.
> For some reason I couldn't apply that patch on the latest bleeding-edge
> branch.
> Could you help me in this please? Is there something missing in the
> patch set (like one more fist patch)?

I messed up the ordering of patches (patch [2/3] should be the last
one in the series) and on top of that, you'll need a small rebase on
that patch.

Sorry about this, I'll send a v2.

Thank you!