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Date: Fri, 25 Mar 2022 16:05:03 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Maximilian Luz <luzmaximilian@...il.com>, "Rafael J. Wysocki" <rafael.j.wysocki@...el.com> Subject: [PATCH 5.4 23/29] ACPI: battery: Add device HID and quirk for Microsoft Surface Go 3 From: Maximilian Luz <luzmaximilian@...il.com> commit 7dacee0b9efc8bd061f097b1a8d4daa6591af0c6 upstream. For some reason, the Microsoft Surface Go 3 uses the standard ACPI interface for battery information, but does not use the standard PNP0C0A HID. Instead it uses MSHW0146 as identifier. Add that ID to the driver as this seems to work well. Additionally, the power state is not updated immediately after the AC has been (un-)plugged, so add the respective quirk for that. Signed-off-by: Maximilian Luz <luzmaximilian@...il.com> Cc: All applicable <stable@...r.kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/acpi/battery.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -77,6 +77,10 @@ extern void *acpi_unlock_battery_dir(str static const struct acpi_device_id battery_device_ids[] = { {"PNP0C0A", 0}, + + /* Microsoft Surface Go 3 */ + {"MSHW0146", 0}, + {"", 0}, }; @@ -1403,6 +1407,14 @@ static const struct dmi_system_id bat_dm DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad"), }, }, + { + /* Microsoft Surface Go 3 */ + .callback = battery_notification_delay_quirk, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "Surface Go 3"), + }, + }, {}, };
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