power: supply: axp288_fuel_gauge: Add ACEPC T8 and T11 mini PCs to the blacklist

commit 9274c78305e12c5f461bec15f49c38e0f32ca705 upstream.

The ACEPC T8 and T11 Cherry Trail Z8350 mini PCs use an AXP288 and as PCs,
rather then portables, they does not have a battery. Still for some
reason the AXP288 not only thinks there is a battery, it actually
thinks it is discharging while the PC is running, slowly going to
0% full, causing userspace to shutdown the system due to the battery
being critically low after a while.

This commit adds the ACEPC T8 and T11 to the axp288 fuel-gauge driver
blacklist, so that we stop reporting bogus battery readings on this device.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1690852
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/power/supply/axp288_fuel_gauge.c b/drivers/power/supply/axp288_fuel_gauge.c
index 084c8ba..ab0b6e7 100644 (file)
--- a/drivers/power/supply/axp288_fuel_gauge.c
+++ b/drivers/power/supply/axp288_fuel_gauge.c
@@ -696,6 +696,26 @@ intr_failed:
  */
 static const struct dmi_system_id axp288_fuel_gauge_blacklist[] = {
        {
+               /* ACEPC T8 Cherry Trail Z8350 mini PC */
+               .matches = {
+                       DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
+                       DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
+                       DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "T8"),
+                       /* also match on somewhat unique bios-version */
+                       DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"),
+               },
+       },
+       {
+               /* ACEPC T11 Cherry Trail Z8350 mini PC */
+               .matches = {
+                       DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
+                       DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
+                       DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "T11"),
+                       /* also match on somewhat unique bios-version */
+                       DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"),
+               },
+       },
+       {
                /* Intel Cherry Trail Compute Stick, Windows version */
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),