Re: [PATCH 0/2] thermal/drivers/mediatek: fix a regression affecting other subsystems

[Icenowy Zheng]

在 2023-06-13星期二的 10:44 +0200，Daniel Lezcano写道：
> On 29/05/2023 18:20, Icenowy Zheng wrote:
> > In the commit I reverted as the first commit of this patchset, the
> > of_iomap function call, which allows multiple mapping of the same
> > physical memory space, is replaced to calling devm_of_iomap, which
> > registers exclusivity, and on my system (mt8173-elm), preventing
> > display
> > from working.
> > 
> > So I reverted it, and to really solve the problem that the original
> > commit wants to solve, I read the source of auxadc-thermal and
> > realized
> > that the address of these two memory blocks are not saved after
> > probe,
> > and they're only used when initializing the thermal sensors. This
> > leads
> > to my final fix, which is the second commit here, that adds
> > of_iounmap
> > just to the probe function.
> > 
> > Icenowy Zheng (2):
> >    Revert "thermal/drivers/mediatek: Use devm_of_iomap to avoid
> > resource
> >      leak in mtk_thermal_probe"
> >    thermal/drivers/mediatek: unmap foreign MMIO after probing
> > 
> >   drivers/thermal/mediatek/auxadc_thermal.c | 46 ++++++++++++------
> > -----
> >   1 file changed, 24 insertions(+), 22 deletions(-)
> 
> I'll apply only the revert and let you revisit the patch 2 which
> could 
> be improved.

Sorry, is the first patch applied? I didn't see it in any kernel
trees...

I have no current idea about how to fix in patch 2.

>