Re: [PATCH 1/2] x86: Remove led/gpio setup from pcengines platform driver

From: Hans de Goede
Date: Tue Oct 13 2020 - 04:48:49 EST


Hi Enrico and Ed W,

Quick self intro: I have take over drivers/platform/x86
maintainership from Andy; and I'm working my way through
the backlog of old patches in patchwork:
https://patchwork.kernel.org/project/platform-driver-x86/list/

On 10/12/20 9:39 PM, Enrico Weigelt, metux IT consult wrote:
On 22.09.20 00:17, Ed W wrote:
Hi, I've been adding support for the PC Engines APU5 board, which is a variant of the APU 2-4 boards
with some nice features. The current platform driver for pcengines boards has some redundant
features with regards to recent bios/firmware packages for the board as they now set the ACPI tables
to indicate GPIOs for keys and leds.

NAK. Breaks existing userlands in the field (literally field), forcing
users to fw upgrade is not an option (field roll would be realy expensive).

Thank you Enrico, I was wondering the same (what about userspace breakage)
when I was looking at this patch. It is good to have confirmation that
userspace breakage is a real issue here.

And I completely agree with Enrico, we cannot go and break userspace,
so some other solution will need to be found here.

I'm marking this series as changes requested in patchwork, please submit
a new version which does not break existing userspace.

Regards,

Hans