Ben Dooks b5893a0881 sh_eth: ensure pm_runtime cannot suspend the device during init ... The pm_rumtime work queue is causing the device to be suspended during initialisation, thus the initialisation may not be able to access registers properly. As the code is called from a work queue, it is possible that this is not seen from certain configurations/builds due to the asynchronos nature of the code. Another issue has also been found where the network device registration calls back into the driver thus causing further pm_runtime calls that also caused issues with the MDIO bus code. This has now been checked and is the only place the MDIO can be called without the device open. Use pm_runtime_get_sync() and pm_runtime_put() to ensure that the pm system does not suspend it during the probe() call and remove the now unnecessary pm_runtime_resume() call. Also add a call in the error path to call pm_runtime_disable(). This fixes the external abort that can cause /sbin/init or other such init processed to die. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Tested-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2014-03-28 15:59:44 -04:00
..
Kconfig	sh_eth: add R8A7791 support	2013-12-10 21:47:35 -05:00
Makefile
sh_eth.c	sh_eth: ensure pm_runtime cannot suspend the device during init	2014-03-28 15:59:44 -04:00
sh_eth.h	sh_eth: use ETH_ZLEN instead of home-grown #define	2014-02-13 18:09:30 -05:00