diff options
| -rw-r--r-- | linux/arch/arm/mach-pxa/pcm990-baseboard.c | 23 | ||||
| -rw-r--r-- | linux/drivers/media/video/mt9m001.c | 3 | ||||
| -rw-r--r-- | linux/drivers/media/video/mt9v022.c | 3 | ||||
| -rw-r--r-- | linux/include/media/soc_camera.h | 1 |
4 files changed, 23 insertions, 7 deletions
diff --git a/linux/arch/arm/mach-pxa/pcm990-baseboard.c b/linux/arch/arm/mach-pxa/pcm990-baseboard.c index 6c12b5a31..9ce1ef2e5 100644 --- a/linux/arch/arm/mach-pxa/pcm990-baseboard.c +++ b/linux/arch/arm/mach-pxa/pcm990-baseboard.c @@ -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. */ diff --git a/linux/drivers/media/video/mt9m001.c b/linux/drivers/media/video/mt9m001.c index 83f3cae47..959edc760 100644 --- a/linux/drivers/media/video/mt9m001.c +++ b/linux/drivers/media/video/mt9m001.c @@ -604,10 +604,13 @@ ei2c: static void mt9m001_video_remove(struct soc_camera_device *icd) { struct mt9m001 *mt9m001 = container_of(icd, struct mt9m001, icd); + struct soc_camera_link *icl = mt9m001->client->dev.platform_data; dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", mt9m001->client->addr, icd->dev.parent, icd->vdev); soc_camera_video_stop(icd); + if (icl->free_bus) + icl->free_bus(icl); } #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 26) diff --git a/linux/drivers/media/video/mt9v022.c b/linux/drivers/media/video/mt9v022.c index 3bee30caa..07ffd967e 100644 --- a/linux/drivers/media/video/mt9v022.c +++ b/linux/drivers/media/video/mt9v022.c @@ -735,10 +735,13 @@ ei2c: static void mt9v022_video_remove(struct soc_camera_device *icd) { struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd); + struct soc_camera_link *icl = mt9v022->client->dev.platform_data; dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", mt9v022->client->addr, icd->dev.parent, icd->vdev); soc_camera_video_stop(icd); + if (icl->free_bus) + icl->free_bus(icl); } #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 26) diff --git a/linux/include/media/soc_camera.h b/linux/include/media/soc_camera.h index 37013688a..396c32550 100644 --- a/linux/include/media/soc_camera.h +++ b/linux/include/media/soc_camera.h @@ -107,6 +107,7 @@ struct soc_camera_link { */ int (*set_bus_param)(struct soc_camera_link *, unsigned long flags); unsigned long (*query_bus_param)(struct soc_camera_link *); + void (*free_bus)(struct soc_camera_link *); }; static inline struct soc_camera_device *to_soc_camera_dev(struct device *dev) |