Hello,
I am extending xilinx-hls driver
(https://github.com/Xilinx/linux-xlnx/blob/master/drivers/media/platform/xilinx/xilinx-hls.c)
to support of_overlay.
In order to reflect in the driver changes being applied by the overlay
to the device tree, I need to unmap first the memory mapped with
devm_ioremap_resource. How to do it properly?
I think it's uncommon, as normally kernel (devm_* functions) manages
those resources itself with devres, so I can't find inspiration in other
drivers.
Regards,
Adrian
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