linux-kernel - [PATCH] power: supply: axp288_fuel_gauge: Add the ECS EF20EA to the blacklist

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Date:   Wed,  9 Dec 2020 12:50:57 +0800
From:   Chris Chiu <chiu@...lessos.org>
To:     sre@...nel.org, wens@...e.org, hdegoede@...hat.com
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux@...lessos.org, Chris Chiu <chiu@...lessos.org>
Subject: [PATCH] power: supply: axp288_fuel_gauge: Add the ECS EF20EA to the blacklist

The ECS EF20EA laptop ships an AXP288 but it is actually using a
different, separate FG chip for AC and battery monitoring. On this
laptop we need to keep using the regular ACPI driver and disable the
AXP288 FG to avoid reporting two batteries to userspace.

Signed-off-by: Chris Chiu <chiu@...lessos.org>
---
 drivers/power/supply/axp288_fuel_gauge.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/power/supply/axp288_fuel_gauge.c b/drivers/power/supply/axp288_fuel_gauge.c
index 148eb8105803..a15c322c79ea 100644
--- a/drivers/power/supply/axp288_fuel_gauge.c
+++ b/drivers/power/supply/axp288_fuel_gauge.c
@@ -739,6 +739,12 @@ static const struct dmi_system_id axp288_fuel_gauge_blacklist[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "Z83-4"),
 		}
 	},
+	{
+		/* ECS EF20 */
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, "EF20"),
+		},
+	},
 	{}
 };
 
-- 
2.20.1