ARM: pxa: mioa701 add camera output enable gpio

The Micron MT9M111 camera chip needs its output enable to be
activated in order to work. The bootloader is not required to
activate it, so do it in machine code.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>

diff --git a/arch/arm/mach-pxa/include/mach/mioa701.h b/arch/arm/mach-pxa/include/mach/mioa701.h
index 0286844..e57f5c7 100644 (file)
--- a/arch/arm/mach-pxa/include/mach/mioa701.h
+++ b/arch/arm/mach-pxa/include/mach/mioa701.h
@@ -61,6 +61,9 @@
 #define GPIO93_KEY_VOLUME_UP                   93
 #define GPIO94_KEY_VOLUME_DOWN                 94
 
+/* Camera */
+#define GPIO56_MT9M111_nOE                     56
+
 extern struct input_dev *mioa701_evdev;
 extern void mioa701_gpio_lpm_set(unsigned long mfp_pin);
 

diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c
index 061d570..929c62b 100644 (file)
--- a/arch/arm/mach-pxa/mioa701.c
+++ b/arch/arm/mach-pxa/mioa701.c
@@ -103,6 +103,7 @@ static unsigned long mioa701_pin_config[] = {
        GPIO82_CIF_DD_5,
        GPIO84_CIF_FV,
        GPIO85_CIF_LV,
+       MIO_CFG_OUT(GPIO56_MT9M111_nOE, AF0, DRIVE_LOW),
 
        /* Bluetooth */
        MIO_CFG_IN(GPIO14_BT_nACTIVITY, AF0),
@@ -705,6 +706,7 @@ static struct gpio global_gpios[] = {
        { GPIO9_CHARGE_EN, GPIOF_OUT_INIT_HIGH, "Charger enable" },
        { GPIO18_POWEROFF, GPIOF_OUT_INIT_LOW, "Power Off" },
        { GPIO87_LCD_POWER, GPIOF_OUT_INIT_LOW, "LCD Power" },
+       { GPIO56_MT9M111_nOE, GPIOF_OUT_INIT_LOW, "Camera nOE" },
 };
 
 static void __init mioa701_machine_init(void)