feat(bat): fix real cap & add bat 8000mA 2.0A charge config

huangcm

2025-09-01 53d8e046ac1bf2ebe94f671983e3d3be059df91a

 longan/kernel/linux-4.9/drivers/power/supply/axp803_battery.c
..
..
@@ -134,17 +134,23 @@
134
134
 	int rdc = 0;
135
135
 	int ret = 0;
136
136
 
137
+    int vbat = 0;
137
138
 	int charging = 0;
138
139
 	int ocv_pct = 0;
139
140
 	int coul_pct = 0;
140
141
 	int ac_valid = 0;
141
142
 	int usb_valid = 0;
143
+    int bat_cur_dir = 0;
144
+    static int low_power_cnt = 0;
142
145
 	static int pre_rest_vol, invalid_count;
143
146
 
144
147
 	struct axp_config_info *axp_config = &bat_power->dts_info;
145
148
 
146
149
     regmap_bulk_read(bat_power->regmap, AXP803_OCVBATH_RES, temp_val, 2);
147
150
 	ocv_vol = ((temp_val[0] << 4) | (temp_val[1] & 0xF)) * 1100 / 1000;
151
+
152
+    regmap_read(bat_power->regmap, AXP803_STATUS, &reg_value);
153
+    bat_cur_dir = (reg_value & 0x04) ? 1 : 0;
148
154
 
149
155
 	ret = regmap_read(bat_power->regmap, AXP803_CAP, &reg_value);
150
156
 	if (ret)
..
..
@@ -163,9 +169,18 @@
163
169
 			rest_vol = 100;
164
170
 		}
165
171
 
166
-        if (ocv_vol < axp_config->pmu_vol_min) {
167
-            // pr_err("kickpi: ocv_vol %d < min %d, rest_vol %d -> 0\n", ocv_vol, axp_config->pmu_vol_min, rest_vol);
168
-            rest_vol = 0;
172
+	    /* read ocv percentage */
173
+        regmap_read(bat_power->regmap, AXP803_OCV_PERCENT, &reg_value);
174
+        ocv_pct = (int)(reg_value & 0x7F);
175
+
176
+        /* read vol */
177
+        vbat = axp803_get_vbat(bat_power);
178
+        if (unlikely(axp_debug_mask & AXP_CHG)) { 
179
+            pr_err("kickpi: v1 ocv_pct = %d rest_vol = %d vbat = %d !\n", ocv_pct, rest_vol, vbat);
180
+        }
181
+
182
+        if ((ocv_pct == 0 && vbat > 0) || (rest_vol == 0 && vbat > 0) ) {
183
+            return 77;
169
184
         }
170
185
             
171
186
 		return rest_vol;
..
..
@@ -243,12 +258,26 @@
243
258
 			ocv_vol, rdc, coulumb_counter, batt_max_cap);
244
259
 	}
245
260
 
246
-    if (ocv_vol < axp_config->pmu_vol_min) {
247
-        // pr_err("kickpi: ocv_vol %d < min %d, rest_vol %d -> 0\n", ocv_vol, axp_config->pmu_vol_min, rest_vol);
248
-        rest_vol = 0;
261
+    /*
262
+        1. vol < low_power_protect when not charge
263
+        2. need power down
264
+    */
265
+    if (bat_cur_dir == 0 && ocv_vol < axp_config->pmu_vol_min) {
266
+        low_power_cnt++;
267
+        if (low_power_cnt >= 6) {
268
+            return 0;
269
+        }
270
+    } else {
271
+        low_power_cnt = 0;
249
272
     }
250
273
 
251
-	return rest_vol;
274
+    if (unlikely(axp_debug_mask & AXP_CHG)) {
275
+        vbat = axp803_get_vbat(bat_power);
276
+        pr_err("kickpi: v2 ocv_pct = %d rest_vol = %d vbat = %d !\n", ocv_pct, rest_vol, vbat);
277
+    }
278
+
279
+    return ocv_pct;
280
+	// return rest_vol;
252
281
 }
253
282
 
254
283
 static inline int axp_vts_to_mV(u16 reg)