[PATCH] power: supply: surface_battery: handle battery event 0x1a

[PATCH] power: supply: surface_battery: handle battery event 0x1a

[Ramón Jesús Miranda]

On the Microsoft Surface Pro 11 (Snapdragon X Elite / X1E80100), the
Surface Aggregator Module (SAM) emits battery target category (0x02) event
CID 0x1a alongside standard battery status notifications. Because CID 0x1a
is currently unhandled in spwr_battery_event(), surface_battery logs:

  surface_battery: unhandled battery event (cid = 0x1a)

Add SAM_EVENT_CID_BAT_0x1A (0x1a) and trigger a battery status recheck via
spwr_battery_recheck_full(), matching the existing battery state events.

Assisted-by: Antigravity:gemini-2.5-pro
Signed-off-by: Ramón Jesús Miranda <ramonjesusmiranda@gmail.com>
---
 drivers/power/supply/surface_battery.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/power/supply/surface_battery.c b/drivers/power/supply/surface_battery.c
index c759add..a3fa899 100644
--- a/drivers/power/supply/surface_battery.c
+++ b/drivers/power/supply/surface_battery.c
@@ -26,6 +26,7 @@ enum sam_event_cid_bat {
 	SAM_EVENT_CID_BAT_BST         = 0x16,
 	SAM_EVENT_CID_BAT_ADP         = 0x17,
 	SAM_EVENT_CID_BAT_PROT        = 0x18,
+	SAM_EVENT_CID_BAT_0x1A        = 0x1a,
 	SAM_EVENT_CID_BAT_DPTF        = 0x53,
 };
 
@@ -368,6 +369,7 @@ static u32 spwr_notify_bat(struct ssam_event_notifier *nf, const struct ssam_eve
 		break;
 
 	case SAM_EVENT_CID_BAT_PROT:
+	case SAM_EVENT_CID_BAT_0x1A:
 		/*
 		 * TODO: Implement support for battery protection status change
 		 *       event.
-- 
2.56.0