From e8f8daae1b6ec85ba5c7689b684c91094efbeb25 Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jeremy@system76.com>
Date: Sun, 5 Apr 2020 10:34:25 -0600
Subject: [PATCH] Set input current limits

---
 src/board/system76/darp5/battery.c   |  8 ++++++++
 src/board/system76/galp3-c/battery.c |  8 ++++++++
 src/board/system76/lemp9/battery.c   | 12 ++++++++++--
 3 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/src/board/system76/darp5/battery.c b/src/board/system76/darp5/battery.c
index 28b813e..d980519 100644
--- a/src/board/system76/darp5/battery.c
+++ b/src/board/system76/darp5/battery.c
@@ -34,6 +34,10 @@ int battery_charger_disable(void) {
     res = smbus_write(0x09, 0x15, 0);
     if (res < 0) return res;
 
+    // Disable input current
+    res = smbus_write(0x09, 0x3F, 0);
+    if (res < 0) return res;
+
     return 0;
 }
 
@@ -51,6 +55,10 @@ int battery_charger_enable(void) {
     res = smbus_write(0x09, 0x15, 0x44CB);
     if (res < 0) return res;
 
+    // Set input current to ~3.2 A
+    res = smbus_write(0x09, 0x3F, 0x0C80);
+    if (res < 0) return res;
+
     // Set charge option 0 with watchdog disabled
     res = smbus_write(
         0x09,
diff --git a/src/board/system76/galp3-c/battery.c b/src/board/system76/galp3-c/battery.c
index f12af07..31fa7f7 100644
--- a/src/board/system76/galp3-c/battery.c
+++ b/src/board/system76/galp3-c/battery.c
@@ -34,6 +34,10 @@ int battery_charger_disable(void) {
     res = smbus_write(0x09, 0x15, 0);
     if (res < 0) return res;
 
+    // Disable input current
+    res = smbus_write(0x09, 0x3F, 0);
+    if (res < 0) return res;
+
     return 0;
 }
 
@@ -51,6 +55,10 @@ int battery_charger_enable(void) {
     res = smbus_write(0x09, 0x15, 0x3300);
     if (res < 0) return res;
 
+    // Set input current to ~1.92 A
+    res = smbus_write(0x09, 0x3F, 0x0780);
+    if (res < 0) return res;
+
     // Set charge option 0 with watchdog disabled
     res = smbus_write(
         0x09,
diff --git a/src/board/system76/lemp9/battery.c b/src/board/system76/lemp9/battery.c
index 54117d4..57a9633 100644
--- a/src/board/system76/lemp9/battery.c
+++ b/src/board/system76/lemp9/battery.c
@@ -33,6 +33,10 @@ int battery_charger_disable(void) {
     res = smbus_write(0x09, 0x15, 0);
     if (res < 0) return res;
 
+    // Disable input current
+    res = smbus_write(0x09, 0x3F, 0);
+    if (res < 0) return res;
+
     return 0;
 }
 
@@ -42,14 +46,18 @@ int battery_charger_enable(void) {
     res = battery_charger_disable();
     if (res < 0) return res;
 
-    // Set charge current to 3.264 A / 2
-    res = smbus_write(0x09, 0x14, 0x0CF2 / 2);
+    // Set charge current to ~1.54A
+    res = smbus_write(0x09, 0x14, 0x061C);
     if (res < 0) return res;
 
     // Set charge voltage to 8.8 V
     res = smbus_write(0x09, 0x15, 0x2260);
     if (res < 0) return res;
 
+    // Set input current to ~3.2 A
+    res = smbus_write(0x09, 0x3F, 0x0C80);
+    if (res < 0) return res;
+
     // Set charge option 0 with watchdog disabled
     res = smbus_write(
         0x09,