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

Started byWolfram Sang <wsa@the-dreams.de>
First post2015-10-09 11:50 +0200
Last post2015-10-15 13:50 +0200
Articles 2 — 1 participant

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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

#1243199 — [PATCH v2 2/4] i2c: rcar: enable RuntimePM before registering to the core

FromWolfram Sang <wsa@the-dreams.de>
Date2015-10-09 11:50 +0200
Subject[PATCH v2 2/4] i2c: rcar: enable RuntimePM before registering to the core
Message-ID<qhCtk-6Ne-27@gated-at.bofh.it>
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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#1247719 — Re: [PATCH v2 2/4] i2c: rcar: enable RuntimePM before registering to the core

FromWolfram Sang <wsa@the-dreams.de>
Date2015-10-15 13:50 +0200
SubjectRe: [PATCH v2 2/4] i2c: rcar: enable RuntimePM before registering to the core
Message-ID<qjPcK-5ko-19@gated-at.bofh.it>
In reply to#1243199

[Multipart message — attachments visible in raw view] — view raw

On Fri, Oct 09, 2015 at 10:39:25AM +0100, Wolfram Sang wrote:
> 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>

Applied to for-current, thanks!

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