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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2014-06-10 10:26:28 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-08-21 15:25:16 -0500 |
| commit | 0b3fcd5727e835c60de46d33b2f5f5803c4a5de7 (patch) | |
| tree | 054dcd3d9624c81f4e88a0f1339e2fcb48621989 | |
| parent | 93456527b4488510d87a523028b3bb73dfdd7669 (diff) | |
| download | lwn-0b3fcd5727e835c60de46d33b2f5f5803c4a5de7.tar.gz lwn-0b3fcd5727e835c60de46d33b2f5f5803c4a5de7.zip | |
[media] omap3isp: ccdc: Don't timeout on stream off when the CCDC is stopped
When the CCDC is already stopped due to a buffer underrun, the stop
state machine won't advance in BT.656 mode as no interrupt are generated
by the stopped CCDC in that mode. Handle this case explicitly in the
ccdc_disable() function.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Enrico Butera <ebutera@users.sourceforge.net>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
| -rw-r--r-- | drivers/media/platform/omap3isp/ispccdc.c | 4 | ||||
| -rw-r--r-- | drivers/media/platform/omap3isp/ispccdc.h | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/media/platform/omap3isp/ispccdc.c b/drivers/media/platform/omap3isp/ispccdc.c index ff2ea2bf31e4..ec0a0e884c79 100644 --- a/drivers/media/platform/omap3isp/ispccdc.c +++ b/drivers/media/platform/omap3isp/ispccdc.c @@ -1320,6 +1320,8 @@ static void __ccdc_enable(struct isp_ccdc_device *ccdc, int enable) isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_PCR, ISPCCDC_PCR_EN, enable ? ISPCCDC_PCR_EN : 0); + + ccdc->running = enable; } static int ccdc_disable(struct isp_ccdc_device *ccdc) @@ -1330,6 +1332,8 @@ static int ccdc_disable(struct isp_ccdc_device *ccdc) spin_lock_irqsave(&ccdc->lock, flags); if (ccdc->state == ISP_PIPELINE_STREAM_CONTINUOUS) ccdc->stopping = CCDC_STOP_REQUEST; + if (!ccdc->running) + ccdc->stopping = CCDC_STOP_FINISHED; spin_unlock_irqrestore(&ccdc->lock, flags); ret = wait_event_timeout(ccdc->wait, diff --git a/drivers/media/platform/omap3isp/ispccdc.h b/drivers/media/platform/omap3isp/ispccdc.h index 731ecc768197..3440a7097940 100644 --- a/drivers/media/platform/omap3isp/ispccdc.h +++ b/drivers/media/platform/omap3isp/ispccdc.h @@ -124,6 +124,7 @@ struct ispccdc_lsc { * @lock: Serializes shadow_update with interrupt handler * @wait: Wait queue used to stop the module * @stopping: Stopping state + * @running: Is the CCDC hardware running * @ioctl_lock: Serializes ioctl calls and LSC requests freeing */ struct isp_ccdc_device { @@ -155,6 +156,7 @@ struct isp_ccdc_device { spinlock_t lock; wait_queue_head_t wait; unsigned int stopping; + bool running; struct mutex ioctl_lock; }; |