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| author | Ido Yariv <ido@wizery.com> | 2011-07-28 20:49:09 +0000 |
|---|---|---|
| committer | Sekhar Nori <nsekhar@ti.com> | 2011-09-17 15:53:23 +0530 |
| commit | 4a9de8ad2cea3c952e8b1cff8aa9289cd9d66c62 (patch) | |
| tree | aeda6998868a604d0bac882206f18dab598b5cbc /arch/arm/mach-davinci/include | |
| parent | 6836989c35b285b566b932fdbb8402edf8fcc887 (diff) | |
| download | kernel_samsung_smdk4412-4a9de8ad2cea3c952e8b1cff8aa9289cd9d66c62.zip kernel_samsung_smdk4412-4a9de8ad2cea3c952e8b1cff8aa9289cd9d66c62.tar.gz kernel_samsung_smdk4412-4a9de8ad2cea3c952e8b1cff8aa9289cd9d66c62.tar.bz2 | |
mmc: davinci: Add support for set_power callback
Some devices connected to the MMC bus are power controlled by external
means. For instance, an SDIO device may be powered down/up by an
external gpio line.
In order to avoid toggling power from within the MMC host driver, add a
set_power callback function, which will be called by set_ios upon
powering down/up.
Signed-off-by: Ido Yariv <ido@wizery.com>
CC: Chris Ball <cjb@laptop.org>
Acked-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Diffstat (limited to 'arch/arm/mach-davinci/include')
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/mmc.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/include/mach/mmc.h b/arch/arm/mach-davinci/include/mach/mmc.h index d4f1e96..5ba6b22 100644 --- a/arch/arm/mach-davinci/include/mach/mmc.h +++ b/arch/arm/mach-davinci/include/mach/mmc.h @@ -12,6 +12,9 @@ struct davinci_mmc_config { /* get_cd()/get_wp() may sleep */ int (*get_cd)(int module); int (*get_ro)(int module); + + void (*set_power)(int module, bool on); + /* wires == 0 is equivalent to wires == 4 (4-bit parallel) */ u8 wires; |