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authorPatrick Rudolph <siro@das-labor.org>2017-11-13 19:00:11 +0100
committerPatrick Rudolph <siro@das-labor.org>2017-12-03 16:55:38 +0000
commit9b8ef11f00e895cf55e80f3a762ffb7cf500cc07 (patch)
tree0c56d930e881f225c146ce5453947f7195a89ba3 /src/mainboard
parentc6fa12727abb6b2acfa5f75478a2e9bcfde90008 (diff)
ec/lenovo/h8/acpi: Fix regression (MS Windows crash on boot)
Fix a regression introduced by #21227 0709dc04 (ec/lenovo/h8/acpi/thermal: Add ACPI fan control). The commit caused Windows to crash as EC reads aren't allowed in the fan device or it's powerresource's methods. Implement the same approach as all other platforms using a GNVS variable named FLVL instead of reading from EC. In addition to EC reads writing to FIELD elements, in another ACPI scope, seems to be broken. Introduce a new method to set the fan disengage mode. Tested on Windows 7 and Lenovo T500. Change-Id: Ia99f8814ac14194578dcd1aa50a63e3f35c042dd Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/22514 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
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