From: 张晴 <zhangqing@rock-chips.com>
Date: Tue, 18 Nov 2014 08:10:52 +0000 (+0800)
Subject: rk3288:pmic:ricoh619:slove fuel gauge error when sleep wakeup for a long time
X-Git-Tag: firefly_0821_release~4460
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=bc52f1110f88019e6fc2c73701e8784a0d3d864e;p=firefly-linux-kernel-4.4.55.git

rk3288:pmic:ricoh619:slove fuel gauge error when sleep wakeup for a long time
---

diff --git a/drivers/power/ricoh619-battery.c b/drivers/power/ricoh619-battery.c
old mode 100644
new mode 100755
index deb097e585b7..d4da2416ea91
--- a/drivers/power/ricoh619-battery.c
+++ b/drivers/power/ricoh619-battery.c
@@ -767,7 +767,14 @@ static int get_target_use_cap(struct ricoh619_battery_info *info)
 	j = info->soca->soc - info->soca->soc/1000*1000;
 	Ocv_now_table = ocv_table[i]*100+(ocv_table[i+1]-ocv_table[i])*j/10;
 
-		Rsys_now = (info->soca->Vsys_ave - Ocv_now_table) / info->soca->Ibat_ave;	
+	Rsys_now = (info->soca->Vsys_ave - Ocv_now_table) / info->soca->Ibat_ave;
+	if (((abs(info->soca->soc - info->soca->displayed_soc)) > 10)
+		&& (info->soca->Ibat_ave > -250)) {
+		if (Rsys_now < 0)
+			Rsys_now = max(-info->soca->Rbat, Rsys_now);
+		else
+			Rsys_now = min(info->soca->Rbat, Rsys_now);
+	}
 
 	Ocv_ZeroPer_now = info->soca->target_vsys * 1000 - Ibat_now * Rsys_now;