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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2013-04-04 12:06:32 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-06-21 15:45:20 -0300
commitd71042c1fa1c3b32bfd55151eef6b2e104301a11 (patch)
tree0a9e3ba173a78d4c2ac3d11577fdbabe7e28d3b4 /drivers/media
parent6b417c897000515e308ff45687319f8ede1ccdd2 (diff)
downloadblackbird-op-linux-d71042c1fa1c3b32bfd55151eef6b2e104301a11.tar.gz
blackbird-op-linux-d71042c1fa1c3b32bfd55151eef6b2e104301a11.zip
[media] mx1-camera: move interface activation and deactivation to clock callbacks
When adding and removing a client, the mx1-camera driver only activates and deactivates its camera interface respectively, which doesn't include any client-specific actions. Move this functionality into .clock_start() and .clock_stop() callbacks. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/platform/soc_camera/mx1_camera.c32
1 files changed, 20 insertions, 12 deletions
diff --git a/drivers/media/platform/soc_camera/mx1_camera.c b/drivers/media/platform/soc_camera/mx1_camera.c
index 5f9ec8efd978..fea3e61476ae 100644
--- a/drivers/media/platform/soc_camera/mx1_camera.c
+++ b/drivers/media/platform/soc_camera/mx1_camera.c
@@ -399,7 +399,7 @@ static void mx1_camera_activate(struct mx1_camera_dev *pcdev)
{
unsigned int csicr1 = CSICR1_EN;
- dev_dbg(pcdev->soc_host.icd->parent, "Activate device\n");
+ dev_dbg(pcdev->soc_host.v4l2_dev.dev, "Activate device\n");
clk_prepare_enable(pcdev->clk);
@@ -415,7 +415,7 @@ static void mx1_camera_activate(struct mx1_camera_dev *pcdev)
static void mx1_camera_deactivate(struct mx1_camera_dev *pcdev)
{
- dev_dbg(pcdev->soc_host.icd->parent, "Deactivate device\n");
+ dev_dbg(pcdev->soc_host.v4l2_dev.dev, "Deactivate device\n");
/* Disable all CSI interface */
__raw_writel(0x00, pcdev->base + CSICR1);
@@ -423,26 +423,35 @@ static void mx1_camera_deactivate(struct mx1_camera_dev *pcdev)
clk_disable_unprepare(pcdev->clk);
}
+static int mx1_camera_add_device(struct soc_camera_device *icd)
+{
+ dev_info(icd->parent, "MX1 Camera driver attached to camera %d\n",
+ icd->devnum);
+
+ return 0;
+}
+
+static void mx1_camera_remove_device(struct soc_camera_device *icd)
+{
+ dev_info(icd->parent, "MX1 Camera driver detached from camera %d\n",
+ icd->devnum);
+}
+
/*
* The following two functions absolutely depend on the fact, that
* there can be only one camera on i.MX1/i.MXL camera sensor interface
*/
-static int mx1_camera_add_device(struct soc_camera_device *icd)
+static int mx1_camera_clock_start(struct soc_camera_host *ici)
{
- struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct mx1_camera_dev *pcdev = ici->priv;
- dev_info(icd->parent, "MX1 Camera driver attached to camera %d\n",
- icd->devnum);
-
mx1_camera_activate(pcdev);
return 0;
}
-static void mx1_camera_remove_device(struct soc_camera_device *icd)
+static void mx1_camera_clock_stop(struct soc_camera_host *ici)
{
- struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct mx1_camera_dev *pcdev = ici->priv;
unsigned int csicr1;
@@ -453,9 +462,6 @@ static void mx1_camera_remove_device(struct soc_camera_device *icd)
/* Stop DMA engine */
imx_dma_disable(pcdev->dma_chan);
- dev_info(icd->parent, "MX1 Camera driver detached from camera %d\n",
- icd->devnum);
-
mx1_camera_deactivate(pcdev);
}
@@ -669,6 +675,8 @@ static struct soc_camera_host_ops mx1_soc_camera_host_ops = {
.owner = THIS_MODULE,
.add = mx1_camera_add_device,
.remove = mx1_camera_remove_device,
+ .clock_start = mx1_camera_clock_start,
+ .clock_stop = mx1_camera_clock_stop,
.set_bus_param = mx1_camera_set_bus_param,
.set_fmt = mx1_camera_set_fmt,
.try_fmt = mx1_camera_try_fmt,
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