This is a note to let you know that I've just added the patch titled
i2c: rcar: enable RuntimePM before registering to the core
to the 4.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
i2c-rcar-enable-runtimepm-before-registering-to-the-core.patch
and it can be found in the queue-4.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 4f7effddf4549d57114289f273710f077c4c330a Mon Sep 17 00:00:00 2001
From: Wolfram Sang <[email protected]>
Date: Fri, 9 Oct 2015 10:39:25 +0100
Subject: i2c: rcar: enable RuntimePM before registering to the core
From: Wolfram Sang <[email protected]>
commit 4f7effddf4549d57114289f273710f077c4c330a upstream.
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 <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/i2c/busses/i2c-rcar.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -690,15 +690,16 @@ static int rcar_i2c_probe(struct platfor
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;
Patches currently in stable-queue which might be from
[email protected] are
queue-4.2/i2c-rcar-enable-runtimepm-before-registering-to-the-core.patch
queue-4.2/i2c-s3c2410-enable-runtimepm-before-registering-to-the-core.patch
queue-4.2/i2c-designware-platdrv-enable-runtimepm-before-registering-to-the-core.patch
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