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authorHans de Goede <hdegoede@redhat.com>2018-03-16 21:28:08 +0100
committerMarcel Holtmann <marcel@holtmann.org>2018-04-01 14:25:31 +0200
commitbb5208b314c5127b716b2ee4f55803a8bb73b750 (patch)
treeca71cf1e81ebc4d6c90c5ae54987158886cd4e2a /ipc/syscall.c
parente09070c51b280567695022237e57c428e548b355 (diff)
downloadlinux-bb5208b314c5127b716b2ee4f55803a8bb73b750.tar.bz2
Bluetooth: hci_bcm: Treat Interrupt ACPI resources as always being active-low
Older devices with a serdev attached bcm bt hci, use an Interrupt ACPI resource to describe the IRQ (rather then a GpioInt resource). These device seem to all claim the IRQ is active-high and seem to all need a DMI quirk to treat it as active-low. Instead simply always assume that Interrupt resource specified IRQs are always active-low. This fixes the bt device not being able to wake the host from runtime- suspend on the: Asus T100TAM, Asus T200TA, Lenovo Yoga2 and the Toshiba Encore, without the need to add 4 new DMI quirks for these models. This also allows us to remove 2 DMI quirks for the Asus T100TA and Asus T100CHI series. Likely the 2 remaining quirks can also be removed but I could not find a DSDT of these devices to verify this. Cc: stable@vger.kernel.org Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=198953 Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1554835 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'ipc/syscall.c')
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