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platform/x86: asus-nb-wmi: Allow configuring SW_TABLET_MODE method with a module option

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Unfortunately we have been unable to find a reliable way to detect if
and how SW_TABLET_MODE reporting is supported, so we are relying on
DMI quirks for this.

Add a module-option to specify the SW_TABLET_MODE method so that this can
be easily tested without needing to rebuild the kernel.

BugLink: https://gitlab.freedesktop.org/libinput/libinput/-/issues/639
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210812145513.39117-1-hdegoede@redhat.com
This commit is contained in:
Hans de Goede 2021-08-12 16:55:12 +02:00
parent 636a1e6975
commit 6be70ccdd9
1 changed files with 19 additions and 0 deletions
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19
drivers/platform/x86/asus-nb-wmi.c
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@ -41,6 +41,10 @@ static int wapf = -1;
module_param(wapf, uint, 0444);
MODULE_PARM_DESC(wapf, "WAPF value");
static int tablet_mode_sw = -1;
module_param(tablet_mode_sw, uint, 0444);
MODULE_PARM_DESC(tablet_mode_sw, "Tablet mode detect: -1:auto 0:disable 1:kbd-dock 2:lid-flip");
static struct quirk_entry *quirks;
static bool asus_q500a_i8042_filter(unsigned char data, unsigned char str,
@ -477,6 +481,21 @@ static void asus_nb_wmi_quirks(struct asus_wmi_driver *driver)
else
wapf = quirks->wapf;
switch (tablet_mode_sw) {
case 0:
quirks->use_kbd_dock_devid = false;
quirks->use_lid_flip_devid = false;
break;
case 1:
quirks->use_kbd_dock_devid = true;
quirks->use_lid_flip_devid = false;
break;
case 2:
quirks->use_kbd_dock_devid = false;
quirks->use_lid_flip_devid = true;
break;
}
if (quirks->i8042_filter) {
ret = i8042_install_filter(quirks->i8042_filter);
if (ret) {