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[PATCH v2 2/4] i2c: rcar: enable RuntimePM before registering to the core

From Wolfram Sang <wsa@the-dreams.de>
Newsgroups linux.kernel
Subject [PATCH v2 2/4] i2c: rcar: enable RuntimePM before registering to the core
Date 2015-10-09 11:50 +0200
Message-ID <qhCtk-6Ne-27@gated-at.bofh.it> (permalink)
References <qhCtj-6Ne-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Wolfram Sang <wsa+renesas@sang-engineering.com>

The core may register clients attached to this master which may use
funtionality from the master. So, RuntimePM must be enabled before, otherwise
this will fail. While here, move drvdata, too.

Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
 drivers/i2c/busses/i2c-rcar.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index d8361dada58455..d8b5a8fee1e6c8 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -690,15 +690,16 @@ static int rcar_i2c_probe(struct platform_device *pdev)
 		return ret;
 	}
 
+	pm_runtime_enable(dev);
+	platform_set_drvdata(pdev, priv);
+
 	ret = i2c_add_numbered_adapter(adap);
 	if (ret < 0) {
 		dev_err(dev, "reg adap failed: %d\n", ret);
+		pm_runtime_disable(dev);
 		return ret;
 	}
 
-	pm_runtime_enable(dev);
-	platform_set_drvdata(pdev, priv);
-
 	dev_info(dev, "probed\n");
 
 	return 0;
-- 
2.1.4

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[PATCH v2 2/4] i2c: rcar: enable RuntimePM before registering to the core Wolfram Sang <wsa@the-dreams.de> - 2015-10-09 11:50 +0200
  Re: [PATCH v2 2/4] i2c: rcar: enable RuntimePM before registering to  the core Wolfram Sang <wsa@the-dreams.de> - 2015-10-15 13:50 +0200

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