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[media] pxa-camera: move interface activation and deactivation to clock callbacks 

When adding and removing a client, the pxa-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>
This commit is contained in:
Guennadi Liakhovetski 2013-04-04 08:56:00 -03:00 committed by Mauro Carvalho Chehab
parent eb569cf9db
commit 39b553dbb4
1 changed files with 22 additions and 14 deletions
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36
drivers/media/platform/soc_camera/pxa_camera.c
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@ -955,32 +955,38 @@ static irqreturn_t pxa_camera_irq(int irq, void *data)
return IRQ_HANDLED;
}
/*
* The following two functions absolutely depend on the fact, that
* there can be only one camera on PXA quick capture interface
* Called with .host_lock held
*/
static int pxa_camera_add_device(struct soc_camera_device *icd)
{
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct pxa_camera_dev *pcdev = ici->priv;
pxa_camera_activate(pcdev);
dev_info(icd->parent, "PXA Camera driver attached to camera %d\n",
icd->devnum);
return 0;
}
/* Called with .host_lock held */
static void pxa_camera_remove_device(struct soc_camera_device *icd)
{
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct pxa_camera_dev *pcdev = ici->priv;
dev_info(icd->parent, "PXA 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 PXA quick capture interface
* Called with .host_lock held
*/
static int pxa_camera_clock_start(struct soc_camera_host *ici)
{
struct pxa_camera_dev *pcdev = ici->priv;
pxa_camera_activate(pcdev);
return 0;
}
/* Called with .host_lock held */
static void pxa_camera_clock_stop(struct soc_camera_host *ici)
{
struct pxa_camera_dev *pcdev = ici->priv;
/* disable capture, disable interrupts */
__raw_writel(0x3ff, pcdev->base + CICR0);
@ -1630,6 +1636,8 @@ static struct soc_camera_host_ops pxa_soc_camera_host_ops = {
.owner = THIS_MODULE,
.add = pxa_camera_add_device,
.remove = pxa_camera_remove_device,
.clock_start = pxa_camera_clock_start,
.clock_stop = pxa_camera_clock_stop,
.set_crop = pxa_camera_set_crop,
.get_formats = pxa_camera_get_formats,
.put_formats = pxa_camera_put_formats,