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Ohad Ben-Cohen 1c8cf9c997 mmc: sdio: fix SDIO suspend/resume regression 
Fix SDIO suspend/resume regression introduced by 4c2ef25fe0 "mmc: fix
all hangs related to mmc/sd card insert/removal during suspend/resume":

  PM: Syncing filesystems ... done.
  Freezing user space processes ... (elapsed 0.01 seconds) done.
  Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
  Suspending console(s) (use no_console_suspend to debug)
  pm_op(): platform_pm_suspend+0x0/0x5c returns -38
  PM: Device pxa2xx-mci.0 failed to suspend: error -38
  PM: Some devices failed to suspend

4c2ef25fe0 moved the card removal/insertion mechanism out of MMC's
suspend/resume path and into pm notifiers (mmc_pm_notify), and that
broke SDIO's expectation that mmc_suspend_host() will remove the card,
and squash the error, in case -ENOSYS is returned from the bus suspend
handler (mmc_sdio_suspend() in this case).

mmc_sdio_suspend() is using this whenever at least one of the card's SDIO
function drivers does not have suspend/resume handlers - in that case
it is agreed to force removal of the entire card.

This patch fixes this regression by trivially bringing back that part of
mmc_suspend_host(), which was removed by 4c2ef25fe0.

Reported-and-tested-by: Sven Neumann <s.neumann@raumfeld.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: <stable@kernel.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Chris Ball <cjb@laptop.org>
 		2010-10-15 12:54:55 -04:00
..
Kconfig
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Makefile
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bus.c mmc: implement SD-combo (IO+mem) support 2010-08-11 08:59:03 -07:00
bus.h
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core.c mmc: sdio: fix SDIO suspend/resume regression 2010-10-15 12:54:55 -04:00
core.h mmc: add erase, secure erase, trim and secure trim operations 2010-08-12 08:43:30 -07:00
debugfs.c
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host.c mmc: build fix: mmc_pm_notify is only available with CONFIG_PM=y 2010-08-18 09:34:05 -07:00
host.h
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mmc.c mmc: add erase, secure erase, trim and secure trim operations 2010-08-12 08:43:30 -07:00
mmc_ops.c
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mmc_ops.h
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sd.c mmc: add erase, secure erase, trim and secure trim operations 2010-08-12 08:43:30 -07:00
sd.h
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sd_ops.c mmc: add erase, secure erase, trim and secure trim operations 2010-08-12 08:43:30 -07:00
sd_ops.h mmc: add erase, secure erase, trim and secure trim operations 2010-08-12 08:43:30 -07:00
sdio.c mmc: avoid getting CID on SDIO-only cards 2010-09-09 18:57:22 -07:00
sdio_bus.c
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sdio_bus.h
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sdio_cis.c
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sdio_cis.h
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sdio_io.c
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sdio_irq.c
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sdio_ops.c
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sdio_ops.h
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