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

[Daniel Lezcano]

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.

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