diff mbox

[v2] ACPI / battery: add quirk for Asus GL502VSK and UX305LA

Message ID 20171121083306.17826-1-kai.heng.feng@canonical.com (mailing list archive)
State Accepted, archived
Delegated to: Rafael Wysocki
Headers show

Commit Message

Kai-Heng Feng Nov. 21, 2017, 8:33 a.m. UTC 
From: Kai Heng Feng <kai.heng.feng@canonical.com>

On Asus GL502VSK and UX305LA, ACPI incorrectly reports discharging when
battery is full and AC is plugged.

However rate_now is correct under this circumstance, hence we can use
"rate_now == 0" as a predicate to report battery full status correctly.

BugLink: https://bugs.launchpad.net/bugs/1482390
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
---
v2:
Convert the special case for the quirk to a sub-case for
ACPI_BATTERY_STATE_DISCHARGING.

 drivers/acpi/battery.c | 33 ++++++++++++++++++++++++++++++---
 1 file changed, 30 insertions(+), 3 deletions(-)

Comments

Rafael J. Wysocki Dec. 4, 2017, 2:47 p.m. UTC | #1 
On Tuesday, November 21, 2017 9:33:06 AM CET Kai-Heng Feng wrote:
> From: Kai Heng Feng <kai.heng.feng@canonical.com>
> 
> On Asus GL502VSK and UX305LA, ACPI incorrectly reports discharging when
> battery is full and AC is plugged.
> 
> However rate_now is correct under this circumstance, hence we can use
> "rate_now == 0" as a predicate to report battery full status correctly.
> 
> BugLink: https://bugs.launchpad.net/bugs/1482390
> Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>

Applied, thanks!

Rafael

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diff mbox

Patch

diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 13e7b56e33ae..428066014897 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -70,6 +70,7 @@  static async_cookie_t async_cookie;
 static bool battery_driver_registered;
 static int battery_bix_broken_package;
 static int battery_notification_delay_ms;
+static int battery_full_discharging;
 static unsigned int cache_time = 1000;
 module_param(cache_time, uint, 0644);
 MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
@@ -214,9 +215,12 @@  static int acpi_battery_get_property(struct power_supply *psy,
 		return -ENODEV;
 	switch (psp) {
 	case POWER_SUPPLY_PROP_STATUS:
-		if (battery->state & ACPI_BATTERY_STATE_DISCHARGING)
-			val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
-		else if (battery->state & ACPI_BATTERY_STATE_CHARGING)
+		if (battery->state & ACPI_BATTERY_STATE_DISCHARGING) {
+			if (battery_full_discharging && battery->rate_now == 0)
+				val->intval = POWER_SUPPLY_STATUS_FULL;
+			else
+				val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+		} else if (battery->state & ACPI_BATTERY_STATE_CHARGING)
 			val->intval = POWER_SUPPLY_STATUS_CHARGING;
 		else if (acpi_battery_is_charged(battery))
 			val->intval = POWER_SUPPLY_STATUS_FULL;
@@ -1166,6 +1170,13 @@  battery_notification_delay_quirk(const struct dmi_system_id *d)
 	return 0;
 }
 
+static int __init
+battery_full_discharging_quirk(const struct dmi_system_id *d)
+{
+	battery_full_discharging = 1;
+	return 0;
+}
+
 static const struct dmi_system_id bat_dmi_table[] __initconst = {
 	{
 		.callback = battery_bix_broken_package_quirk,
@@ -1183,6 +1194,22 @@  static const struct dmi_system_id bat_dmi_table[] __initconst = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire V5-573G"),
 		},
 	},
+	{
+		.callback = battery_full_discharging_quirk,
+		.ident = "ASUS GL502VSK",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "GL502VSK"),
+		},
+	},
+	{
+		.callback = battery_full_discharging_quirk,
+		.ident = "ASUS UX305LA",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "UX305LA"),
+		},
+	},
 	{},
 };