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ARM: 7219/1: mmc: mmci: Change vdd_handler to a generic ios_handler

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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>
This commit is contained in:
Ulf Hansson
2011-12-13 16:57:55 +01:00
committed by Russell King
parent 4d1a3a0dc5
commit bc521818e2
3 changed files with 15 additions and 20 deletions
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6
include/linux/amba/mmci.h
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@@ -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;