From: 许盛飞 <xsf@rock-chips.com>
Date: Mon, 24 Nov 2014 04:00:21 +0000 (+0800)
Subject: test-power: add testpower dts-config
X-Git-Tag: firefly_0821_release~1719
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=839acebc9350d3ed4d8e23aca4a0c919ee2d9ad8;p=firefly-linux-kernel-4.4.55.git

test-power: add testpower dts-config

Change-Id: Ib2c78602f604d610a648397cbf08c56cdbd77eab
Signed-off-by: Shengfei Xu <xsf@rock-chips.com>
---

diff --git a/drivers/power/test_power.c b/drivers/power/test_power.c
index 83c42ea88f2b..328ddd8bb773 100644
--- a/drivers/power/test_power.c
+++ b/drivers/power/test_power.c
@@ -20,6 +20,7 @@
 #include <linux/errno.h>
 #include <linux/delay.h>
 #include <linux/vermagic.h>
+#include <linux/of.h>
 
 enum test_power_id {
 	TEST_AC,
@@ -197,6 +198,19 @@ static int __init test_power_init(void)
 {
 	int i;
 	int ret;
+	struct device_node *dev_node;
+
+	dev_node = of_find_node_by_name(NULL, "test-power");
+
+	if (!dev_node) {
+		pr_info("%s: could not find dev node\n", __func__);
+		return 0;
+	}
+	if (!of_device_is_available(dev_node)) {
+		pr_info("%s: test power disabled\n", __func__);
+		return 0;
+	}
+	of_node_put(dev_node);
 
 	BUILD_BUG_ON(TEST_POWER_NUM != ARRAY_SIZE(test_power_supplies));
 	BUILD_BUG_ON(TEST_POWER_NUM != ARRAY_SIZE(test_power_configs));