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authorRussell King <rmk+kernel@armlinux.org.uk>2016-09-06 14:34:05 +0100
committerRussell King <rmk+kernel@armlinux.org.uk>2016-09-12 11:04:05 +0100
commit06dfe5cc0cc684e735cb0232fdb756d30780b05d (patch)
tree1c0b21b068068ead6664874aa885c82b6f6130f4 /Documentation/x86
parent7c0091eceab231b59e51b80bbcf5a2205a0fa905 (diff)
ARM: sa1111: fix pcmcia suspend/resume
SA1111 PCMCIA was broken when PCMCIA switched to using dev_pm_ops for the PCMCIA socket class. PCMCIA used to handle suspend/resume via the socket hosting device, which happened at normal device suspend/resume time. However, the referenced commit changed this: much of the resume now happens much earlier, in the noirq resume handler of dev_pm_ops. However, on SA1111, the PCMCIA device is not accessible as the SA1111 has not been resumed at _noirq time. It's slightly worse than that, because the SA1111 has already been put to sleep at _noirq time, so suspend doesn't work properly. Fix this by converting the core SA1111 code to use dev_pm_ops as well, and performing its own suspend/resume at noirq time. This fixes these errors in the kernel log: pcmcia_socket pcmcia_socket0: time out after reset pcmcia_socket pcmcia_socket1: time out after reset and the resulting lack of PCMCIA cards after a S2RAM cycle. Fixes: d7646f7632549 ("pcmcia: use dev_pm_ops for class pcmcia_socket_class") Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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