tree 038450eadd2c1b1545dc75cc2c06202019f3c09f
parent 50f67a06713599e18cd9141e413d0e2653bb242b
author Johan Hovold <jhovold@gmail.com> 1382459559 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1383088977 -0700

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>