1 files changed, 45 insertions, 9 deletions

diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c
index f46698e20c1f..90a399075ff6 100644
--- a/arch/arm/mach-pxa/pcm990-baseboard.c
+++ b/arch/arm/mach-pxa/pcm990-baseboard.c
@@ -380,14 +380,50 @@ static struct pca953x_platform_data pca9536_data = {
         .gpio_base      = NR_BUILTIN_GPIO + 1,
 };
 
-static struct soc_camera_link iclink[] = {
-        {
-                .bus_id = 0, /* Must match with the camera ID above */
-                .gpio   = NR_BUILTIN_GPIO + 1,
-        }, {
-                .bus_id = 0, /* Must match with the camera ID above */
-                .gpio   = -ENXIO,
+static int gpio_bus_switch;
+
+static int pcm990_camera_set_bus_param(struct soc_camera_link *link,
+                unsigned long flags)
+{
+        if (gpio_bus_switch <= 0) {
+                if (flags == SOCAM_DATAWIDTH_10)
+                        return 0;
+                else
+                        return -EINVAL;
+        }
+
+        if (flags & SOCAM_DATAWIDTH_8)
+                gpio_set_value(gpio_bus_switch, 1);
+        else
+                gpio_set_value(gpio_bus_switch, 0);
+
+        return 0;
+}
+
+static unsigned long pcm990_camera_query_bus_param(struct soc_camera_link *link)
+{
+        int ret;
+
+        if (!gpio_bus_switch) {
+                ret = gpio_request(NR_BUILTIN_GPIO + 1, "camera");
+                if (!ret) {
+                        gpio_bus_switch = NR_BUILTIN_GPIO + 1;
+                        gpio_direction_output(gpio_bus_switch, 0);
+                } else
+                        gpio_bus_switch = -EINVAL;
         }
+
+        if (gpio_bus_switch > 0)
+                return SOCAM_DATAWIDTH_8 | SOCAM_DATAWIDTH_10;
+        else
+                return SOCAM_DATAWIDTH_10;
+}
+
+static struct soc_camera_link iclink = {
+        .bus_id = 0, /* Must match with the camera ID above */
+        .gpio = NR_BUILTIN_GPIO + 1,
+        .query_bus_param = pcm990_camera_query_bus_param,
+        .set_bus_param = pcm990_camera_set_bus_param,
 };
 
 /* Board I2C devices. */
@@ -398,10 +434,10 @@ static struct i2c_board_info __initdata pcm990_i2c_devices[] = {
                 .platform_data = &pca9536_data,
         }, {
                 I2C_BOARD_INFO("mt9v022", 0x48),
-                .platform_data = &iclink[0], /* With extender */
+                .platform_data = &iclink, /* With extender */
         }, {
                 I2C_BOARD_INFO("mt9m001", 0x5d),
-                .platform_data = &iclink[0], /* With extender */
+                .platform_data = &iclink, /* With extender */
         },
 };
 #endif /* CONFIG_VIDEO_PXA27x ||CONFIG_VIDEO_PXA27x_MODULE */