summaryrefslogtreecommitdiff
path: root/drivers/platform/x86/lg-laptop.c
diff options
context:
space:
mode:
authorGwendal Grignou <gwendal@chromium.org>2024-03-29 17:32:06 +0300
committerIlpo Järvinen <ilpo.jarvinen@linux.intel.com>2024-04-08 18:30:40 +0300
commit434e5781d8cd2d0ed512d920c6cdeba4b33a2e81 (patch)
treebd3940a88fec152e910f7ebc05f0abc5bfcf099f /drivers/platform/x86/lg-laptop.c
parent868adf8a29179c00309ddd8ffe0afa2043f42cb5 (diff)
downloadlinux-434e5781d8cd2d0ed512d920c6cdeba4b33a2e81.tar.xz
platform/x86: intel-vbtn: Update tablet mode switch at end of probe
ACER Vivobook Flip (TP401NAS) virtual intel switch is implemented as follow: Device (VGBI) { Name (_HID, EisaId ("INT33D6") ... Name (VBDS, Zero) Method (_STA, 0, Serialized) // _STA: Status ... Method (VBDL, 0, Serialized) { PB1E |= 0x20 VBDS |= 0x40 } Method (VGBS, 0, Serialized) { Return (VBDS) /* \_SB_.PCI0.SBRG.EC0_.VGBI.VBDS */ } ... } By default VBDS is set to 0. At boot it is set to clamshell (bit 6 set) only after method VBDL is executed. Since VBDL is now evaluated in the probe routine later, after the device is registered, the retrieved value of VBDS was still 0 ("tablet mode") when setting up the virtual switch. Make sure to evaluate VGBS after VBDL, to ensure the convertible boots in clamshell mode, the expected default. Fixes: 26173179fae1 ("platform/x86: intel-vbtn: Eval VBDL after registering our notifier") Signed-off-by: Gwendal Grignou <gwendal@chromium.org> Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20240329143206.2977734-3-gwendal@chromium.org Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Diffstat (limited to 'drivers/platform/x86/lg-laptop.c')
0 files changed, 0 insertions, 0 deletions