2022-06-04 16:55:01 +00:00
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From 74f6cdf32a442f7f76e259a9e7de8314da949fc2 Mon Sep 17 00:00:00 2001
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2022-05-07 16:26:07 +00:00
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From: Werner Sembach <wse@tuxedocomputers.com>
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Date: Wed, 27 Apr 2022 17:40:53 +0200
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Subject: [PATCH] ACPI: battery: Make "not-charging" the default on no charging
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or full info
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2022-04-26 00:32:12 +00:00
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2022-05-07 16:26:07 +00:00
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When the battery is neither charging or discharging and is not full,
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"not-charging" is a useful status description for the case in general.
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Currently this state is set as "unknown" by default, expect when this is
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explicitly replaced with "not-charging" on a per device or per vendor
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basis.
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2022-04-26 00:32:12 +00:00
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2022-05-07 16:26:07 +00:00
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A lot of devices have this state without a BIOS specification available
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explicitly describing it. e.g. some current Clevo barebones have a BIOS
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setting to stop charging at a user defined battery level.
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2022-04-26 00:32:12 +00:00
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2022-05-07 16:26:07 +00:00
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Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
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Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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2022-04-26 00:32:12 +00:00
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Patchset: surface-battery
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---
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2022-05-07 16:26:07 +00:00
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drivers/acpi/battery.c | 24 +-----------------------
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1 file changed, 1 insertion(+), 23 deletions(-)
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2022-04-26 00:32:12 +00:00
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diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
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2022-05-07 16:26:07 +00:00
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index dc208f5f5a1f..306513fec1e1 100644
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2022-04-26 00:32:12 +00:00
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--- a/drivers/acpi/battery.c
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+++ b/drivers/acpi/battery.c
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2022-05-07 16:26:07 +00:00
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@@ -52,7 +52,6 @@ static bool battery_driver_registered;
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static int battery_bix_broken_package;
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static int battery_notification_delay_ms;
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static int battery_ac_is_broken;
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-static int battery_quirk_notcharging;
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static unsigned int cache_time = 1000;
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module_param(cache_time, uint, 0644);
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MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
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@@ -216,10 +215,8 @@ static int acpi_battery_get_property(struct power_supply *psy,
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val->intval = POWER_SUPPLY_STATUS_CHARGING;
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else if (acpi_battery_is_charged(battery))
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val->intval = POWER_SUPPLY_STATUS_FULL;
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- else if (battery_quirk_notcharging)
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- val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
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else
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- val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
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+ val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
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break;
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case POWER_SUPPLY_PROP_PRESENT:
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val->intval = acpi_battery_present(battery);
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@@ -1105,12 +1102,6 @@ battery_ac_is_broken_quirk(const struct dmi_system_id *d)
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return 0;
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}
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-static int __init battery_quirk_not_charging(const struct dmi_system_id *d)
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-{
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- battery_quirk_notcharging = 1;
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- return 0;
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-}
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-
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static const struct dmi_system_id bat_dmi_table[] __initconst = {
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{
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/* NEC LZ750/LS */
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@@ -1139,19 +1130,6 @@ static const struct dmi_system_id bat_dmi_table[] __initconst = {
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DMI_MATCH(DMI_BIOS_DATE, "08/22/2014"),
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2022-04-26 00:32:12 +00:00
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},
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},
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2022-05-07 16:26:07 +00:00
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- {
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- /*
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- * On Lenovo ThinkPads the BIOS specification defines
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- * a state when the bits for charging and discharging
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- * are both set to 0. That state is "Not Charging".
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- */
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- .callback = battery_quirk_not_charging,
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- .ident = "Lenovo ThinkPad",
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- .matches = {
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- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
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- DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad"),
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- },
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- },
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2022-04-26 00:32:12 +00:00
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{
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/* Microsoft Surface Go 3 */
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.callback = battery_notification_delay_quirk,
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--
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2022-05-16 19:57:53 +00:00
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2.36.1
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2022-04-26 00:32:12 +00:00
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2022-06-04 16:55:01 +00:00
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From 1e3fec36f879a1579b39db1b992fb00cb6be776b Mon Sep 17 00:00:00 2001
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2022-05-25 15:24:33 +00:00
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From: Maximilian Luz <luzmaximilian@gmail.com>
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Date: Wed, 25 May 2022 14:20:10 +0200
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Subject: [PATCH] HID: hid-input: add Surface Go battery quirk
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Similar to the Surface Go (1), the (Elantech) touchscreen/digitizer in
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the Surface Go 2 mistakenly reports the battery of the stylus. Instead
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of over the touchsreen device, battery information is provided via
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bluetooth and the touchscreen device reports an empty battery.
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Apply the HID_BATTERY_QUIRK_IGNORE quirk to to ignore this battery and
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prevent the erroneous low battery warnings.
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Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
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Patchset: surface-battery
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---
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drivers/hid/hid-ids.h | 1 +
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drivers/hid/hid-input.c | 2 ++
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2 files changed, 3 insertions(+)
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diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
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index 78bd3ddda442..288766674c6a 100644
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--- a/drivers/hid/hid-ids.h
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+++ b/drivers/hid/hid-ids.h
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@@ -405,6 +405,7 @@
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#define USB_DEVICE_ID_ASUS_UX550VE_TOUCHSCREEN 0x2544
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#define USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN 0x2706
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#define I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN 0x261A
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+#define I2C_DEVICE_ID_SURFACE_GO2_TOUCHSCREEN 0x2A1C
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#define USB_VENDOR_ID_ELECOM 0x056e
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#define USB_DEVICE_ID_ELECOM_BM084 0x0061
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diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
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index 56ec27398a00..263a977801bf 100644
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--- a/drivers/hid/hid-input.c
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+++ b/drivers/hid/hid-input.c
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@@ -336,6 +336,8 @@ static const struct hid_device_id hid_battery_quirks[] = {
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HID_BATTERY_QUIRK_IGNORE },
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{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_GO_TOUCHSCREEN),
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HID_BATTERY_QUIRK_IGNORE },
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+ { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_SURFACE_GO2_TOUCHSCREEN),
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+ HID_BATTERY_QUIRK_IGNORE },
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{}
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};
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--
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2.36.1
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