6.6-stable review patch. If anyone has any objections, please let me know.
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From: Fenglin Wu fenglin.wu@oss.qualcomm.com
[ Upstream commit 41307ec7df057239aae3d0f089cc35a0d735cdf8 ]
The X1E80100 battery management firmware sends a notification with code 0x83 when the battery charging state changes, such as switching between fast charge, taper charge, end of charge, or any other error charging states.
The same notification code is used with bit[8] set when charging stops because the charge control end threshold is reached. Additionally, a 2-bit value is included in bit[10:9] with the same code to indicate the charging source capability, which is determined by the calculated power from voltage and current readings from PDOs: 2 means a strong charger over 60W, 1 indicates a weak charger, and 0 means there is no charging source.
These 3-MSB [10:8] in the notification code is not much useful for now, hence just ignore them and trigger a power supply change event whenever 0x83 notification code is received. This helps to eliminate the unknown notification error messages.
Reported-by: Sebastian Reichel sebastian.reichel@collabora.com Closes: https://lore.kernel.org/all/r65idyc4of5obo6untebw4iqfj2zteiggnnzabrqtlcinvtd... Signed-off-by: Fenglin Wu fenglin.wu@oss.qualcomm.com Signed-off-by: Sebastian Reichel sebastian.reichel@collabora.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/power/supply/qcom_battmgr.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/power/supply/qcom_battmgr.c b/drivers/power/supply/qcom_battmgr.c index c1cb338e54bbc..0c993780d3ef2 100644 --- a/drivers/power/supply/qcom_battmgr.c +++ b/drivers/power/supply/qcom_battmgr.c @@ -29,8 +29,9 @@ enum qcom_battmgr_variant { #define NOTIF_BAT_PROPERTY 0x30 #define NOTIF_USB_PROPERTY 0x32 #define NOTIF_WLS_PROPERTY 0x34 -#define NOTIF_BAT_INFO 0x81 #define NOTIF_BAT_STATUS 0x80 +#define NOTIF_BAT_INFO 0x81 +#define NOTIF_BAT_CHARGING_STATE 0x83
#define BATTMGR_BAT_INFO 0x9
@@ -940,12 +941,14 @@ static void qcom_battmgr_notification(struct qcom_battmgr *battmgr, }
notification = le32_to_cpu(msg->notification); + notification &= 0xff; switch (notification) { case NOTIF_BAT_INFO: battmgr->info.valid = false; fallthrough; case NOTIF_BAT_STATUS: case NOTIF_BAT_PROPERTY: + case NOTIF_BAT_CHARGING_STATE: power_supply_changed(battmgr->bat_psy); break; case NOTIF_USB_PROPERTY: