google_battery: TRICKLE-DEFEND
drop the recharge threshold to 90% or lower
after the first recharge cycle
Bug: 170232321
Change-Id: I9cd23b791db7e50d4733b0cdcb791e6bed855bd6
Signed-off-by: Ken Tsou <[email protected]>
(cherry picked from commit a2e6cbed2b53e9eaa9dceae339d40fcaef9888e9)
diff --git a/google_battery.c b/google_battery.c
index 001599a..385f9bf 100644
--- a/google_battery.c
+++ b/google_battery.c
@@ -46,6 +46,7 @@
#define DEFAULT_BATT_FAKE_CAPACITY 50
#define DEFAULT_BATT_UPDATE_INTERVAL 30000
#define DEFAULT_BATT_DRV_RL_SOC_THRESHOLD 97
+#define DEFAULT_BD_RL_SOC_THRESHOLD 90
#define DEFAULT_HIGH_TEMP_UPDATE_THRESHOLD 550
#define MSC_ERROR_UPDATE_INTERVAL 5000
@@ -147,6 +148,10 @@
int rl_soc_threshold;
enum batt_rl_status rl_status;
+ /* trickle defender */
+ int bd_rl_soc_threshold;
+ int bd_trickle_cnt;
+
/* buff */
char ssoc_state_cstr[SSOC_STATE_BUF_SZ];
};
@@ -877,7 +882,10 @@
*/
static void batt_rl_reset(struct batt_drv *batt_drv)
{
- batt_drv->ssoc_state.rl_status = BATT_RL_STATUS_NONE;
+ struct batt_ssoc_state *ssoc_state = &batt_drv->ssoc_state;
+
+ ssoc_state->rl_status = BATT_RL_STATUS_NONE;
+ ssoc_state->bd_trickle_cnt = 0;
}
/*
@@ -888,7 +896,7 @@
static void batt_rl_update_status(struct batt_drv *batt_drv)
{
struct batt_ssoc_state *ssoc_state = &batt_drv->ssoc_state;
- int soc;
+ int soc, rl_soc_threshold;
/* already in _RECHARGE or _NONE, done */
if (ssoc_state->rl_status != BATT_RL_STATUS_DISCHARGE)
@@ -898,13 +906,17 @@
return;
/* recharge logic work on real soc */
soc = ssoc_get_real(ssoc_state);
- if (soc > ssoc_state->rl_soc_threshold)
+ rl_soc_threshold = (ssoc_state->bd_trickle_cnt > 0) ?
+ ssoc_state->bd_rl_soc_threshold : ssoc_state->rl_soc_threshold;
+ if (soc > rl_soc_threshold)
return;
/* change state (will restart charge) on trigger */
ssoc_state->rl_status = BATT_RL_STATUS_RECHARGE;
if (batt_drv->psy)
power_supply_changed(batt_drv->psy);
+
+ ssoc_state->bd_trickle_cnt++;
}
/* ------------------------------------------------------------------------- */
@@ -4951,6 +4963,12 @@
batt_drv->ssoc_state.rl_soc_threshold =
DEFAULT_BATT_DRV_RL_SOC_THRESHOLD;
+ ret = of_property_read_u32(node, "google,bd-recharge-soc-threshold",
+ &batt_drv->ssoc_state.bd_rl_soc_threshold);
+ if (ret < 0)
+ batt_drv->ssoc_state.bd_rl_soc_threshold =
+ DEFAULT_BD_RL_SOC_THRESHOLD;
+
ret = of_property_read_u32(node, "google,ssoc-delta",
&batt_drv->ssoc_state.ssoc_delta);
if (ret < 0)
