From: Johan Hovold <jhovold@gmail.com>
Date: Tue, 22 Oct 2013 16:32:39 +0000 (+0200)
Subject: misc: atmel_pwm: add deferred-probing support
X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~65^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5c6d6fd1564138ad048564e48639f842714a90c6;p=pandora-kernel.git

misc: atmel_pwm: add deferred-probing support

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@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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