diff options
| author |   Ulf Hansson <ulf.hansson@stericsson.com> | 2011-12-13 16:57:55 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2012-01-20 00:00:56 +0000 |
| commit | bc521818e28042bb6018d91c353d24fb01ccb162 (patch) | |
| tree | e6ba5c3f5ae30dfb5e227ee92744c7491c8d3135 /include/linux/amba | |
| parent | ARM: 7218/1: mmc: mmci: Provide option to configure bus signal direction (diff) | |
| download | linux-dev-bc521818e28042bb6018d91c353d24fb01ccb162.tar.xz linux-dev-bc521818e28042bb6018d91c353d24fb01ccb162.zip | |
ARM: 7219/1: mmc: mmci: Change vdd_handler to a generic ios_handler
The purpose of the vdd_handler does not make sense. We remove it
and use a generic approach instead. A new ios_handler is added, the
purpose of which e.g. can be to control GPIO pins to a levelshifter.
Previously the vdd_handler was also used for making additional
changes to the power register bits. This option is superfluous and is
therefore removed.
Adaptaptions from the old vdd_handler to the new ios_handler is done for
mach-ux500 board, which was the only one using the vdd_handler.
This patch is based upon a patch from Sebastian Rasmussen.
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Rasmussen <sebastian.rasmussen@stericsson.com>
Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/linux/amba')
| -rw-r--r-- | include/linux/amba/mmci.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/amba/mmci.h b/include/linux/amba/mmci.h index b51bf5fa85f8..32a89cf5ec45 100644 --- a/include/linux/amba/mmci.h +++ b/include/linux/amba/mmci.h @@ -31,7 +31,8 @@ struct dma_chan; * @ocr_mask: available voltages on the 4 pins from the block, this * is ignored if a regulator is used, see the MMC_VDD_* masks in * mmc/host.h - * @vdd_handler: a callback function to translate a MMC_VDD_* + * @ios_handler: a callback function to act on specfic ios changes, + * used for example to control a levelshifter * mask into a value to be binary (or set some other custom bits * in MMCIPWR) or:ed and written into the MMCIPWR register of the * block. May also control external power based on the power_mode. @@ -61,8 +62,7 @@ struct dma_chan; struct mmci_platform_data { unsigned int f_max; unsigned int ocr_mask; - u32 (*vdd_handler)(struct device *, unsigned int vdd, - unsigned char power_mode); + int (*ios_handler)(struct device *, struct mmc_ios *); unsigned int (*status)(struct device *); int gpio_wp; int gpio_cd; |