aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-pxa/pcm990-baseboard.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-pxa/pcm990-baseboard.c')
-rw-r--r--arch/arm/mach-pxa/pcm990-baseboard.c25
1 files changed, 17 insertions, 8 deletions
diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c
index 6c12b5a3132..01791d74e08 100644
--- a/arch/arm/mach-pxa/pcm990-baseboard.c
+++ b/arch/arm/mach-pxa/pcm990-baseboard.c
@@ -28,7 +28,7 @@
#include <media/soc_camera.h>
#include <asm/gpio.h>
-#include <mach/i2c.h>
+#include <plat/i2c.h>
#include <mach/camera.h>
#include <asm/mach/map.h>
#include <mach/pxa27x.h>
@@ -380,12 +380,12 @@ static struct pca953x_platform_data pca9536_data = {
.gpio_base = NR_BUILTIN_GPIO,
};
-static int gpio_bus_switch;
+static int gpio_bus_switch = -EINVAL;
static int pcm990_camera_set_bus_param(struct soc_camera_link *link,
- unsigned long flags)
+ unsigned long flags)
{
- if (gpio_bus_switch <= 0) {
+ if (gpio_bus_switch < 0) {
if (flags == SOCAM_DATAWIDTH_10)
return 0;
else
@@ -404,25 +404,34 @@ static unsigned long pcm990_camera_query_bus_param(struct soc_camera_link *link)
{
int ret;
- if (!gpio_bus_switch) {
+ if (gpio_bus_switch < 0) {
ret = gpio_request(NR_BUILTIN_GPIO, "camera");
if (!ret) {
gpio_bus_switch = NR_BUILTIN_GPIO;
gpio_direction_output(gpio_bus_switch, 0);
- } else
- gpio_bus_switch = -EINVAL;
+ }
}
- if (gpio_bus_switch > 0)
+ if (gpio_bus_switch >= 0)
return SOCAM_DATAWIDTH_8 | SOCAM_DATAWIDTH_10;
else
return SOCAM_DATAWIDTH_10;
}
+static void pcm990_camera_free_bus(struct soc_camera_link *link)
+{
+ if (gpio_bus_switch < 0)
+ return;
+
+ gpio_free(gpio_bus_switch);
+ gpio_bus_switch = -EINVAL;
+}
+
static struct soc_camera_link iclink = {
.bus_id = 0, /* Must match with the camera ID above */
.query_bus_param = pcm990_camera_query_bus_param,
.set_bus_param = pcm990_camera_set_bus_param,
+ .free_bus = pcm990_camera_free_bus,
};
/* Board I2C devices. */