From: chenxing <chenxing@rock-chips.com>
Date: Wed, 19 Jun 2013 02:07:15 +0000 (+0800)
Subject: rk3188: efuse: use byte[22] bit[2] to ctrl leakage's effective
X-Git-Tag: firefly_0821_release~6965^2~61
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=7679b4f520e0dc5570d461cddc87583df8ee8696;p=firefly-linux-kernel-4.4.55.git

rk3188: efuse: use byte[22] bit[2] to ctrl leakage's effective
---

diff --git a/arch/arm/plat-rk/efuse.c b/arch/arm/plat-rk/efuse.c
index dcb829515d5e..b29a9a68443e 100644
--- a/arch/arm/plat-rk/efuse.c
+++ b/arch/arm/plat-rk/efuse.c
@@ -69,5 +69,14 @@ int rk_pll_flag(void)
 
 int rk_leakage_val(void)
 {
-	return (efuse_buf[22] >> 4) & 0x0f;
+	/*
+	 * efuse_buf[22]
+	 * bit[3]:
+	 * 	0:enable leakage level auto voltage scale
+	 * 	1:disalbe leakage level avs
+	 */
+	if ((efuse_buf[22] >> 2) & 0x1)
+		return 0;
+	else
+		return  (efuse_buf[22] >> 4) & 0x0f;
 }