[ARM] pxamci: add simple gpio controls

The MMC block needs 3 external datas to work :
 - is the MMC card put in "read-only mode" ?
 - is a MMC card inserted or removed ?
 - enable power towards the MMC card

Several platforms provide these controls through
gpios. Expand the platform_data to request and use these
gpios is set up by board code.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Pierre.Ossman <pierre@ossman.eu>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/include/mach/mmc.h b/arch/arm/mach-pxa/include/mach/mmc.h
index 6d1304c9270f..02a69dc2ee63 100644
--- a/arch/arm/mach-pxa/include/mach/mmc.h
+++ b/arch/arm/mach-pxa/include/mach/mmc.h
@@ -14,6 +14,11 @@ struct pxamci_platform_data {
         int (*get_ro)(struct device *);
         void (*setpower)(struct device *, unsigned int);
         void (*exit)(struct device *, void *);
+        int gpio_card_detect;                   /* gpio detecting card insertion */
+        int gpio_card_ro;                       /* gpio detecting read only toggle */
+        bool gpio_card_ro_invert;               /* gpio ro is inverted */
+        int gpio_power;                         /* gpio powering up MMC bus */
+        bool gpio_power_invert;                 /* gpio power is inverted */
 };
 
 extern void pxa_set_mci_info(struct pxamci_platform_data *info);