[media] v4l: omap4iss: resizer: Stop the whole resizer to avoid FIFO overflows
When stopping the resizer due to a buffer underrun, disabling RZA only
produces input FIFO overflows, most probably when the next frame is
received. Disable the whole resizer to work around the problem.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
diff --git a/drivers/staging/media/omap4iss/iss_resizer.c b/drivers/staging/media/omap4iss/iss_resizer.c
index 793325c..5bf5080 100644
--- a/drivers/staging/media/omap4iss/iss_resizer.c
+++ b/drivers/staging/media/omap4iss/iss_resizer.c
@@ -266,10 +266,12 @@
static void resizer_isr_buffer(struct iss_resizer_device *resizer)
{
- struct iss_device *iss = to_iss_device(resizer);
struct iss_buffer *buffer;
- iss_reg_clr(iss, OMAP4_ISS_MEM_ISP_RESIZER, RZA_EN, RSZ_EN_EN);
+ /* The whole resizer needs to be stopped. Disabling RZA only produces
+ * input FIFO overflows, most probably when the next frame is received.
+ */
+ resizer_enable(resizer, 0);
buffer = omap4iss_video_buffer_next(&resizer->video_out);
if (buffer == NULL)
@@ -277,7 +279,7 @@
resizer_set_outaddr(resizer, buffer->iss_addr);
- iss_reg_set(iss, OMAP4_ISS_MEM_ISP_RESIZER, RZA_EN, RSZ_EN_EN);
+ resizer_enable(resizer, 1);
}
/*