From f4c99dfd27c6d95a516f748b15318b0a95c5d543 Mon Sep 17 00:00:00 2001
From: Ryan Zhang <ryan.zhang.quanta@gmail.com>
Date: Thu, 12 Jan 2017 17:59:16 +0800
Subject: [PATCH] Electro: limit max input current for safety

+ Max = Max * 95%

BUG=chrome-os-partner:61852
BRANCH=reef
TEST=Run fish tank + youtube + USB 0.9A * 2 +
     TypeC 3A * 1 + empty battery, input current
     from 3.033A become 2.92A

Change-Id: I34563a011915c29972835f7d878cad29045d42f0
Signed-off-by: Ryan Zhang <Ryan.Zhang@quantatw.com>
Reviewed-on: https://chromium-review.googlesource.com/427485
Commit-Ready: Benson Leung <bleung@chromium.org>
Tested-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Benson Leung <bleung@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
---
 board/reef/board.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/board/reef/board.c b/board/reef/board.c
index 8b7a9cecb2..0a91bd7069 100644
--- a/board/reef/board.c
+++ b/board/reef/board.c
@@ -608,6 +608,7 @@ void board_set_charge_limit(int port, int supplier, int charge_ma,
 	if (bd9995x_bc12_enable_charging(port, bc12_enable))
 		return;
 
+	charge_ma = (charge_ma * 95) / 100;
 	charge_set_input_current_limit(MAX(charge_ma,
 				   CONFIG_CHARGER_INPUT_CURRENT), charge_mv);
 }