linux-kernel - [PATCH V5 3/8] opp: Enhance debug messages in of_init_opp

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Message-Id: <7373788d1dd01bd99cd22fbfaf94327d42e58935.1401691974.git.viresh.kumar@linaro.org>
Date:	Mon,  2 Jun 2014 12:30:33 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	rjw@...ysocki.net
Cc:	linaro-kernel@...ts.linaro.org, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org, arvind.chauhan@....com,
	inderpal.s@...sung.com, nm@...com, chander.kashyap@...aro.org,
	pavel@....cz, len.brown@...el.com, sudeep.holla@....com,
	Viresh Kumar <viresh.kumar@...aro.org>
Subject: [PATCH V5 3/8] opp: Enhance debug messages in of_init_opp_table()

Enhance print messages for debugging purposes. Add a dev_err() whenever we fail
to initialize OPP table due to some error in the table present in dts and add a
dev_dbg() for success case.

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
V4->V5: Fix rebase conflict as 2/8 has changed a bit

 drivers/base/power/opp.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c
index 28696af..ba20510 100644
--- a/drivers/base/power/opp.c
+++ b/drivers/base/power/opp.c
@@ -655,6 +655,8 @@ int of_init_opp_table(struct device *dev)
 	}
 
 	if (!prop->value) {
+		dev_err(dev, "%s: failed to init OPP: prop->value is NULL\n",
+			__func__);
 		ret = -ENODATA;
 		goto out;
 	}
@@ -681,6 +683,8 @@ int of_init_opp_table(struct device *dev)
 		nr -= 2;
 	}
 
+	dev_dbg(dev, "%s: successfully created OPP table\n", __func__);
+
 out:
 	of_node_put(dev->of_node);
 	return 0;
-- 
2.0.0.rc2

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