From f43691c61d6e547809bff33394ac83cc263960e4 Mon Sep 17 00:00:00 2001 From: Alexander Mezin Date: Wed, 4 Jun 2014 02:01:23 +0700 Subject: [PATCH] ACPI / battery: add quirk for Acer Aspire V5-573G On Acer Aspire V5-573G battery notifications are sometimes triggered too early. For example, when AC is unplugged and notification is triggered, battery state is still reported as "Full", and changes to "Discharging" only after short delay, without any notification. This patch solves the problem by adding 1 second sleep. Similar quirk is already implemented in AC driver for other laptop. Signed-off-by: Alexander Mezin Acked-by: Lan Tianyu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/battery.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 9530f4478ae2..1ce197f499f1 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include #include @@ -70,6 +71,7 @@ MODULE_DESCRIPTION("ACPI Battery Driver"); MODULE_LICENSE("GPL"); static int battery_bix_broken_package; +static int battery_notification_delay_ms; static unsigned int cache_time = 1000; module_param(cache_time, uint, 0644); MODULE_PARM_DESC(cache_time, "cache time in milliseconds"); @@ -1062,6 +1064,14 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event) if (!battery) return; old = battery->bat.dev; + /* + * On Acer Aspire V5-573G notifications are sometimes triggered too + * early. For example, when AC is unplugged and notification is + * triggered, battery state is still reported as "Full", and changes to + * "Discharging" only after short delay, without any notification. + */ + if (battery_notification_delay_ms > 0) + msleep(battery_notification_delay_ms); if (event == ACPI_BATTERY_NOTIFY_INFO) acpi_battery_refresh(battery); acpi_battery_update(battery, false); @@ -1112,6 +1122,12 @@ static int battery_bix_broken_package_quirk(const struct dmi_system_id *d) return 0; } +static int battery_notification_delay_quirk(const struct dmi_system_id *d) +{ + battery_notification_delay_ms = 1000; + return 0; +} + static struct dmi_system_id bat_dmi_table[] = { { .callback = battery_bix_broken_package_quirk, @@ -1121,6 +1137,14 @@ static struct dmi_system_id bat_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "PC-LZ750LS"), }, }, + { + .callback = battery_notification_delay_quirk, + .ident = "Acer Aspire V5-573G", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_MATCH(DMI_PRODUCT_NAME, "Aspire V5-573G"), + }, + }, {}, }; -- 2.20.1