linux-toradex.git/include/linux/mmc, branch v2.6.32.3

headers: remove sched.h from interrupt.h

2009-10-11T18:20:58+00:00

After m68k's task_thread_info() doesn't refer to current,
it's possible to remove sched.h from interrupt.h and not break m68k!
Many thanks to Heiko Carstens for allowing this.

Signed-off-by: Alexey Dobriyan

mmc: make SDIO device/driver struct accessors public

2009-09-23T14:39:38+00:00

Especially with the PM framework, those are quite handy to have in driver
code too.

Signed-off-by: Nicolas Pitre 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

sdio: add MMC_QUIRK_LENIENT_FN0

2009-09-23T14:39:37+00:00

Normally writes to SDIO function 0 outside the vendor specific CCCR
registers are prohibited.

To support embedded devices that require writes to SDIO function 0 outside
this range (e.g.  TI WL127x embedded sdio wifi device),
MMC_QUIRK_LENIENT_FN0 is introduced.

A card quirks field is added to `struct mmc_card' to support non-standard
devices (e.g.  embedded sdio devices).

[akpm@linux-foundation.org: code in C, not cpp!]
Signed-off-by: Ohad Ben-Cohen 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

sdio: add CD disable support

2009-09-23T14:39:36+00:00

Add support to disconnect the pull-up resistor on CD/DAT[3] (pin 1)
of the card. This may be desired on certain setups of boards,
controllers and embedded sdio devices which do not need the card's
pull-up. As a result, card detection is disabled and power is saved.

[akpm@linux-foundation.org: simplify sdio_disable_cd() a bit]
Signed-off-by: Ohad Ben-Cohen 
Acked-by: Matt Fleming 
Cc: Ian Molton 
Cc: "Roberto A. Foglietta" 
Cc: Philip Langdale 
Cc: Pierre Ossman 
Cc: David Vrabel 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mmc: check status after MMC SWITCH command

2009-09-23T14:39:34+00:00

According to the standard, the SWITCH command should be followed by a
SEND_STATUS command to check for errors.

Signed-off-by: Adrian Hunter 
Acked-by: Matt Fleming 
Cc: Ian Molton 
Cc: "Roberto A. Foglietta" 
Cc: Jarkko Lavinen 
Cc: Denis Karpov 
Cc: Pierre Ossman 
Cc: Philip Langdale 
Cc: "Madhusudhan" 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mmc: add mmc card sleep and awake support

2009-09-23T14:39:33+00:00

Add support for the new MMC command SLEEP_AWAKE.

Signed-off-by: Jarkko Lavinen 
Signed-off-by: Adrian Hunter 
Acked-by: Matt Fleming 
Cc: Ian Molton 
Cc: "Roberto A. Foglietta" 
Cc: Jarkko Lavinen 
Cc: Denis Karpov 
Cc: Pierre Ossman 
Cc: Philip Langdale 
Cc: "Madhusudhan" 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mmc: add ability to save power by powering off cards

2009-09-23T14:39:33+00:00

Power can be saved by powering off cards that are not in use.  This is
similar to suspend / resume except it is under the control of the driver,
and does not require any power management support.  It can only be used
when the driver can monitor whether the card is removed, otherwise it is
unsafe.  This is possible because, unlike suspend, the driver still
receives card detect and / or cover switch interrupts.

Signed-off-by: Adrian Hunter 
Acked-by: Matt Fleming 
Cc: Ian Molton 
Cc: "Roberto A. Foglietta" 
Cc: Jarkko Lavinen 
Cc: Denis Karpov 
Cc: Pierre Ossman 
Cc: Philip Langdale 
Cc: "Madhusudhan" 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mmc: add MMC_CAP_NONREMOVABLE host capability

2009-09-23T14:39:33+00:00

eMMC's are not removable, so unsafe resume is OK always.

To permit this a new host capability MMC_CAP_NONREMOVABLE has been added
and suspend / resume updated accordingly.

Signed-off-by: Adrian Hunter 
Acked-by: Matt Fleming 
Cc: Ian Molton 
Cc: "Roberto A. Foglietta" 
Cc: Jarkko Lavinen 
Cc: Denis Karpov 
Cc: Pierre Ossman 
Cc: Philip Langdale 
Cc: "Madhusudhan" 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mmc: allow host claim / release nesting

2009-09-23T14:39:33+00:00

This change allows the MMC host to be claimed in situations where the host
may or may not have already been claimed.  Also 'mmc_try_claim_host()' is
now exported.

Signed-off-by: Adrian Hunter 
Acked-by: Matt Fleming 
Cc: Ian Molton 
Cc: "Roberto A. Foglietta" 
Cc: Jarkko Lavinen 
Cc: Denis Karpov 
Cc: Pierre Ossman 
Cc: Philip Langdale 
Cc: "Madhusudhan" 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mmc: add 'enable' and 'disable' methods to mmc host

2009-09-23T14:39:33+00:00

MMC hosts that support power saving can use the 'enable' and 'disable'
methods to exit and enter power saving states.  An explanation of their
use is provided in the comments added to include/linux/mmc/host.h.

Signed-off-by: Adrian Hunter 
Acked-by: Matt Fleming 
Cc: Ian Molton 
Cc: "Roberto A. Foglietta" 
Cc: Jarkko Lavinen 
Cc: Denis Karpov 
Cc: Pierre Ossman 
Cc: Philip Langdale 
Cc: "Madhusudhan" 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds