linux-kernel - [PATCH AUTOSEL 5.17 105/149] power: supply: axp288_fuel_gauge: Use acpi_quirk_skip_acpi_ac_and

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Date:   Fri,  1 Apr 2022 10:24:52 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Hans de Goede <hdegoede@...hat.com>,
        Sebastian Reichel <sebastian.reichel@...labora.com>,
        Sasha Levin <sashal@...nel.org>, sre@...nel.org, wens@...e.org,
        linux-pm@...r.kernel.org
Subject: [PATCH AUTOSEL 5.17 105/149] power: supply: axp288_fuel_gauge: Use acpi_quirk_skip_acpi_ac_and_battery()

From: Hans de Goede <hdegoede@...hat.com>

[ Upstream commit da365db704d290fb4dc4cdbd41f60b0ecec1cc03 ]

Normally the native AXP288 fg/charger drivers are preferred but one some
devices the ACPI drivers should be used instead.

The ACPI battery/ac drivers use the acpi_quirk_skip_acpi_ac_and_battery()
helper to determine if they should skip loading because native fuel-gauge/
charger drivers like the AXP288 drivers will be used.

The new acpi_quirk_skip_acpi_ac_and_battery() helper includes a list of
exceptions for boards where the ACPI drivers should be used instead.

Use this new helper to avoid loading on such boards. Note this requires
adding a Kconfig dependency on ACPI, this is not a problem because ACPI
should be enabled on all boards with an AXP288 PMIC anyways.

Signed-off-by: Hans de Goede <hdegoede@...hat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/power/supply/Kconfig             |  2 +-
 drivers/power/supply/axp288_fuel_gauge.c | 14 ++++++++------
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig
index d7534f12e9ef..5e4a69352811 100644
--- a/drivers/power/supply/Kconfig
+++ b/drivers/power/supply/Kconfig
@@ -358,7 +358,7 @@ config AXP288_CHARGER
 
 config AXP288_FUEL_GAUGE
 	tristate "X-Powers AXP288 Fuel Gauge"
-	depends on MFD_AXP20X && IIO && IOSF_MBI
+	depends on MFD_AXP20X && IIO && IOSF_MBI && ACPI
 	help
 	  Say yes here to have support for X-Power power management IC (PMIC)
 	  Fuel Gauge. The device provides battery statistics and status
diff --git a/drivers/power/supply/axp288_fuel_gauge.c b/drivers/power/supply/axp288_fuel_gauge.c
index c1da217fdb0e..ce8ffd0a41b5 100644
--- a/drivers/power/supply/axp288_fuel_gauge.c
+++ b/drivers/power/supply/axp288_fuel_gauge.c
@@ -9,6 +9,7 @@
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  */
 
+#include <linux/acpi.h>
 #include <linux/dmi.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
@@ -560,12 +561,6 @@ static const struct dmi_system_id axp288_no_battery_list[] = {
 			DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1.000"),
 		},
 	},
-	{
-		/* ECS EF20EA */
-		.matches = {
-			DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"),
-		},
-	},
 	{
 		/* Intel Cherry Trail Compute Stick, Windows version */
 		.matches = {
@@ -624,6 +619,13 @@ static int axp288_fuel_gauge_probe(struct platform_device *pdev)
 	};
 	unsigned int val;
 
+	/*
+	 * Normally the native AXP288 fg/charger drivers are preferred but
+	 * on some devices the ACPI drivers should be used instead.
+	 */
+	if (!acpi_quirk_skip_acpi_ac_and_battery())
+		return -ENODEV;
+
 	if (dmi_check_system(axp288_no_battery_list))
 		return -ENODEV;
 
-- 
2.34.1