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platform/x86: asus-wmi: Support laptops where the first battery is named BATT

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The WMI method to set the charge threshold does not provide a
way to specific a battery, so we assume it is the first/primary
battery (by checking if the name is BAT0).
On some newer ASUS laptops (Zenbook UM431DA) though, the
primary/first battery isn't named BAT0 but BATT, so we need
to support that case.

Fixes: 7973353e92 ("platform/x86: asus-wmi: Refactor charge threshold to use the battery hooking API")
Cc: stable@vger.kernel.org
Signed-off-by: Kristian Klausen <kristian@klausen.dk>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Kristian Klausen 2020-03-03 19:02:15 +01:00 committed by Andy Shevchenko
parent 8d92e160dd
commit 6b3586d45b
1 changed files with 4 additions and 1 deletions
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5
drivers/platform/x86/asus-wmi.c
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@ -426,8 +426,11 @@ static int asus_wmi_battery_add(struct power_supply *battery)
{
/* The WMI method does not provide a way to specific a battery, so we
* just assume it is the first battery.
* Note: On some newer ASUS laptops (Zenbook UM431DA), the primary/first
* battery is named BATT.
*/
if (strcmp(battery->desc->name, "BAT0") != 0)
if (strcmp(battery->desc->name, "BAT0") != 0 &&
strcmp(battery->desc->name, "BATT") != 0)
return -ENODEV;
if (device_create_file(&battery->dev,