Patch "misc: atmel_pwm: add deferred-probing support" has been added to the 3.11-stable tree

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This is a note to let you know that I've just added the patch titled

    misc: atmel_pwm: add deferred-probing support

to the 3.11-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:
     misc-atmel_pwm-add-deferred-probing-support.patch
and it can be found in the queue-3.11 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 5c6d6fd1564138ad048564e48639f842714a90c6 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@xxxxxxxxx>
Date: Tue, 22 Oct 2013 18:32:39 +0200
Subject: misc: atmel_pwm: add deferred-probing support

From: Johan Hovold <jhovold@xxxxxxxxx>

commit 5c6d6fd1564138ad048564e48639f842714a90c6 upstream.

Two drivers (atmel-pwm-bl and leds-atmel-pwm) currently depend on the
atmel_pwm driver to have bound to any pwm-device before their devices
are probed.

Support deferred probing of such devices by making sure to return
-EPROBE_DEFER from pwm_channel_alloc when no pwm-device has yet been
bound.

Signed-off-by: Johan Hovold <jhovold@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/misc/atmel_pwm.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/misc/atmel_pwm.c
+++ b/drivers/misc/atmel_pwm.c
@@ -90,8 +90,10 @@ int pwm_channel_alloc(int index, struct
 	unsigned long	flags;
 	int		status = 0;
 
-	/* insist on PWM init, with this signal pinned out */
-	if (!pwm || !(pwm->mask & 1 << index))
+	if (!pwm)
+		return -EPROBE_DEFER;
+
+	if (!(pwm->mask & 1 << index))
 		return -ENODEV;
 
 	if (index < 0 || index >= PWM_NCHAN || !ch)


Patches currently in stable-queue which might be from jhovold@xxxxxxxxx are

queue-3.11/backlight-atmel-pwm-bl-fix-deferred-probe-from-__init.patch
queue-3.11/misc-atmel_pwm-add-deferred-probing-support.patch
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