Commit 0c0438d4 authored by Bartosz Golaszewski's avatar Bartosz Golaszewski
Browse files

gpio: TODO: remove the task for the sysfs rework 



Remove the completed task tracking the rework of the sysfs interface and
add a new task to track the removal of the legacy bits and pieces.

Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250704-gpio-sysfs-chip-export-v4-10-9289d8758243@linaro.org


Signed-off-by: default avatarBartosz Golaszewski <bartosz.golaszewski@linaro.org>
parent e69c6db4

drivers/gpio/TODO

+5 −9
Original line number Diff line number Diff line
@@ -188,16 +188,12 @@ remove the old ones and finally rename the new ones back to the old names. 


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Extend the sysfs ABI to allow exporting lines by their HW offsets

Remove legacy sysfs features



The need to support the sysfs GPIO class is one of the main obstacles to

removing the global GPIO numberspace from the kernel. In order to wean users

off using global numbers from user-space, extend the existing interface with

new per-gpiochip export/unexport attributes that allow to refer to GPIOs using

their hardware offsets within the chip.



Encourage users to switch to using them and eventually remove the existing

global export/unexport attribues.

We have two parallel per-chip class devices and per-exported-line attribute

groups in sysfs. One is using the obsolete global GPIO numberspace and the

second relies on hardware offsets of pins within the chip. Remove the former

once user-space has switched to using the latter.



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