linux-kernel - [PATCH V4 09/10] PM / OPP: Don't WARN on multiple calls to dev_pm_opp_set

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Message-Id: <0d981ba7f4069a8f55ae309d038d055ebeaabe1f.1479986492.git.viresh.kumar@linaro.org>
Date:   Thu, 24 Nov 2016 17:06:18 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Rafael Wysocki <rjw@...ysocki.net>, nm@...com,
        sboyd@...eaurora.org, Viresh Kumar <vireshk@...nel.org>
Cc:     linaro-kernel@...ts.linaro.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>, robh@...nel.org,
        d-gerlach@...com, broonie@...nel.org, devicetree@...r.kernel.org,
        Viresh Kumar <viresh.kumar@...aro.org>
Subject: [PATCH V4 09/10] PM / OPP: Don't WARN on multiple calls to dev_pm_opp_set_regulators()

If a platform specific OPP driver has called this routine first and set
the regulators, then the second call from cpufreq-dt driver will hit the
WARN_ON(). Remove the WARN_ON(), but continue to return error in such
cases.

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
Reviewed-by: Stephen Boyd <sboyd@...eaurora.org>
Tested-by: Dave Gerlach <d-gerlach@...com>
---
 drivers/base/power/opp/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/base/power/opp/core.c b/drivers/base/power/opp/core.c
index 7c945d5950bf..d3f4c625b809 100644
--- a/drivers/base/power/opp/core.c
+++ b/drivers/base/power/opp/core.c
@@ -1469,7 +1469,7 @@ int dev_pm_opp_set_regulators(struct device *dev, const char * const names[],
 	}
 
 	/* Already have regulators set */
-	if (WARN_ON(opp_table->regulators)) {
+	if (opp_table->regulators) {
 		ret = -EBUSY;
 		goto err;
 	}
-- 
2.7.1.410.g6faf27b