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Subject[PATCH 0/4] Topstar ACPI LED Workaround
Hi Darren,

On Topstar U931 Notebooks, an issue prevents the WLAN toggle key from
being properly managed by the Embedded Controller and successfully
disconnect the adapter. A specific ACPI method allows to toggle the WLAN
LED state regardless.

These are barebone laptops, sold under quite a lot of brands and
configurations, with different firmwares and so on. I can only say for sure
that this issue is present for all the models sold under a specific brand,
that's why I'm reluctant to enable this by default with a DMI check.

Thus, the new `led_workaround` option registers this LED with the
corresponding subsystem, making possible to use a software-based trigger
(rfkill for instance to synchronize the LED with the softkill state).

Thank you for your time,

Guillaume Douézan-Grard

Guillaume Douézan-Grard (4):
platform/x86: topstar-laptop: non-functional changes
platform/x86: topstar-laptop: change to generic module
platform/x86: topstar-laptop: add platform device
platform/x86: topstar-laptop: add optional WLAN LED workaround

drivers/platform/x86/Kconfig | 2 +
drivers/platform/x86/topstar-laptop.c | 339 ++++++++++++++++++++++++++--------
2 files changed, 267 insertions(+), 74 deletions(-)


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