1 files changed, 21 insertions, 2 deletions

diff --git a/firmware/target/mips/ingenic_x1000/shanlingq1/power-shanlingq1.c b/firmware/target/mips/ingenic_x1000/shanlingq1/power-shanlingq1.c
index 65d1bc163f..9637ceef2f 100644
--- a/firmware/target/mips/ingenic_x1000/shanlingq1/power-shanlingq1.c
+++ b/firmware/target/mips/ingenic_x1000/shanlingq1/power-shanlingq1.c
@@ -86,7 +86,7 @@ void power_init(void)
         (1 << AXP_SUPPLY_DCDC2) | /* LCD (1.2 V) */
         (1 << AXP_SUPPLY_DCDC3) | /* CPU (1.8 V) */
         (1 << AXP_SUPPLY_LDO2) |  /* Touchscreen (3.3 V) */
-        (1 << AXP_SUPPLY_LDO3));  /* not sure (2.5 V) */
+        (1 << AXP_SUPPLY_LDO3));  /* USB analog (2.5 V) */
 
     /* Enable required ADCs */
     axp_set_enabled_adcs(
@@ -98,6 +98,10 @@ void power_init(void)
         (1 << AXP_ADC_INTERNAL_TEMP) |
         (1 << AXP_ADC_APS_VOLTAGE));
 
+    /* Configure USB charging */
+    axp_set_vhold_level(4400);
+    usb_charging_maxcurrent_change(100);
+
     /* Delay to give power output time to stabilize */
     mdelay(20);
 }
@@ -105,7 +109,22 @@ void power_init(void)
 #ifdef HAVE_USB_CHARGING_ENABLE
 void usb_charging_maxcurrent_change(int maxcurrent)
 {
-    axp_set_charge_current(maxcurrent);
+    int vbus_limit;
+    int charge_current;
+
+    /* Note that the charge current setting is a maximum: it will be
+     * reduced dynamically by the AXP192 so the combined load is less
+     * than the set VBUS current limit. */
+    if(maxcurrent <= 100) {
+        vbus_limit = AXP_VBUS_LIMIT_100mA;
+        charge_current = 550;
+    } else {
+        vbus_limit = AXP_VBUS_LIMIT_500mA;
+        charge_current = 550;
+    }
+
+    axp_set_vbus_limit(vbus_limit);
+    axp_set_charge_current(charge_current);
 }
 #endif