ARM: 5957/1: ARM: RealView SD/MMC Card detection and write-protect using GPIOLIB

The switch to using GPIOLIB broke the sd/mmc card detection on the
RealView development boards if GPIO_PL061 was not selected.
This patch selects GPIO_PL061 if GPIOLIB is selected.
The sense of the return value from mmc_status has also changed
and is corrected.

Signed-off-by: Colin Tuckley <colin.tuckley@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 2 insertions, 1 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c5408bf1bf4..92622eb5cc0 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -253,6 +253,7 @@ config ARCH_REALVIEW
         select GENERIC_TIME
         select GENERIC_CLOCKEVENTS
         select ARCH_WANT_OPTIONAL_GPIOLIB
+        select GPIO_PL061 if GPIOLIB
         help
           This enables support for ARM Ltd RealView boards.
 
diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c
index f2dbce5f3cd..d5a95738f85 100644
--- a/arch/arm/mach-realview/core.c
+++ b/arch/arm/mach-realview/core.c
@@ -254,7 +254,7 @@ static unsigned int realview_mmc_status(struct device *dev)
         else
                 mask = 2;
 
-        return readl(REALVIEW_SYSMCI) & mask;
+        return !(readl(REALVIEW_SYSMCI) & mask);
 }
 
 struct mmci_platform_data realview_mmc0_plat_data = {