--- kernel-power.bak/debian/patches/bq27x00-fix-nac.diff    2021-08-19 14:18:10.000000000 +0300
+++ kernel-power-2.6.28/debian/patches/bq27x00-fix-nac.diff    2021-08-19 16:18:07.299138619 +0300
@@ -10,7 +10,7 @@
 +    bool is_bq27500 = di->chip == BQ27500;
 +
 +    flags = bq27x00_read(di, BQ27x00_REG_FLAGS, !is_bq27500);
-+    if (flags >= 0 && !is_bq27500 && (flags & BQ27000_FLAG_CI))
++    if (0 && flags >= 0 && !is_bq27500 && (flags & BQ27000_FLAG_CI))
 +        return -ENODATA;
 +
      return bq27x00_battery_read_charge(di, BQ27x00_REG_NAC);
--- kernel-power.bak/debian/patches/bq27x00-upstream.diff    2021-08-19 14:18:10.000000000 +0300
+++ kernel-power-2.6.28/debian/patches/bq27x00-upstream.diff    2021-08-24 08:13:24.560397092 +0300
@@ -38,7 +38,7 @@
 +#include <linux/power/bq27x00_battery.h>
  
 -#define DRIVER_VERSION            "1.0.0"
-+#define DRIVER_VERSION            "1.2.0"
++#define DRIVER_VERSION            "1.2.0x"
  
  #define BQ27x00_REG_TEMP        0x06
  #define BQ27x00_REG_VOLT        0x08
@@ -362,9 +362,14 @@
 +
 +    cache.flags = bq27x00_read(di, BQ27x00_REG_FLAGS, is_bq27500);
 +    if (cache.flags >= 0) {
-+        if (!is_bq27500 && (cache.flags & BQ27000_FLAG_CI)) {
++        /* We only have to read charge design full once */
++        if (di->charge_design_full <= 0)
++            di->charge_design_full = bq27x00_battery_read_ilmd(di);
++        cache.charge_full = bq27x00_battery_read_lmd(di);
++
++        if (!is_bq27500 && ((cache.flags & BQ27000_FLAG_CI) || 1) && cache.charge_full==di->charge_design_full) {
 +            dev_info(di->dev, "battery is not calibrated! ignoring capacity values\n");
-+            cache.capacity = -ENODATA;
++            cache.capacity = -ENODATA; // or BL-5J default 1320mAh ?
 +            cache.energy = -ENODATA;
 +            cache.time_to_empty = -ENODATA;
 +            cache.time_to_empty_avg = -ENODATA;
@@ -376,14 +381,9 @@
 +            cache.time_to_empty = bq27x00_battery_read_time(di, BQ27x00_REG_TTE);
 +            cache.time_to_empty_avg = bq27x00_battery_read_time(di, BQ27x00_REG_TTECP);
 +            cache.time_to_full = bq27x00_battery_read_time(di, BQ27x00_REG_TTF);
-+            cache.charge_full = bq27x00_battery_read_lmd(di);
 +        }
 +        cache.temperature = bq27x00_battery_read_temperature(di);
 +        cache.cycle_count = bq27x00_battery_read_cyct(di);
-+
-+        /* We only have to read charge design full once */
-+        if (di->charge_design_full <= 0)
-+            di->charge_design_full = bq27x00_battery_read_ilmd(di);
      }