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Stefan Agner 9e01e2d56d soc: imx: gpcv2: fix regulator deferred probe 
If a regulator requests a deferred probe, the power domain gets
initialized twice. This leads to a list double add (without
list debugging the kernel hangs due to the double add later):

  WARNING: CPU: 0 PID: 19 at lib/list_debug.c:31 __list_add_valid+0xbc/0xc4
  list_add double add: new=c1229754, prev=c12383b4, next=c1229754.

Initialize the power domain after we get the regulator. Also do
not print an error in case the regulator defers probing.

Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Fixes: 03aa12629f ("soc: imx: Add GPCv2 power gating driver")
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Tested-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
 		2017-08-05 11:12:20 +08:00
..
Kconfig soc: imx: add PM dependency for IMX7_PM_DOMAINS 2017-05-15 09:33:22 +08:00
Makefile soc: imx: gpc: build gpc only if hardware has gpc 2017-05-15 10:22:25 +08:00
gpc.c soc: imx: gpc: add workaround for i.MX6QP to the GPC PD driver 2017-04-07 20:47:34 +08:00
gpcv2.c soc: imx: gpcv2: fix regulator deferred probe 2017-08-05 11:12:20 +08:00