ARM: 6307/1: mmci: allow the card detect GPIO value not to be inverted

On some platforms, the GPIO value from the gpio_cd pin doesn't need to
be inverted to get it active high.  Add a cd_invert platform data
parameter and change existing platforms using GPIO for CD (only
Realview) to enable it.

Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Rabin Vincent
2010-08-09 12:54:43 +01:00
committed by Russell King
parent d4348c6789
commit 2971944582
3 changed files with 7 additions and 2 deletions

View File

@ -24,6 +24,7 @@
* whether a card is present in the MMC slot or not
* @gpio_wp: read this GPIO pin to see if the card is write protected
* @gpio_cd: read this GPIO pin to detect card insertion
* @cd_invert: true if the gpio_cd pin value is active low
* @capabilities: the capabilities of the block as implemented in
* this platform, signify anything MMC_CAP_* from mmc/host.h
*/
@ -35,6 +36,7 @@ struct mmci_platform_data {
unsigned int (*status)(struct device *);
int gpio_wp;
int gpio_cd;
bool cd_invert;
unsigned long capabilities;
};