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path: root/drivers/media/video/s5p-tv/mixer_reg.c
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Diffstat (limited to 'drivers/media/video/s5p-tv/mixer_reg.c')
-rw-r--r--drivers/media/video/s5p-tv/mixer_reg.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/media/video/s5p-tv/mixer_reg.c b/drivers/media/video/s5p-tv/mixer_reg.c
index 4800a3cbb297..3b1670a045f4 100644
--- a/drivers/media/video/s5p-tv/mixer_reg.c
+++ b/drivers/media/video/s5p-tv/mixer_reg.c
@@ -296,21 +296,25 @@ irqreturn_t mxr_irq_handler(int irq, void *dev_data)
/* wake up process waiting for VSYNC */
if (val & MXR_INT_STATUS_VSYNC) {
set_bit(MXR_EVENT_VSYNC, &mdev->event_flags);
+ /* toggle TOP field event if working in interlaced mode */
+ if (~mxr_read(mdev, MXR_CFG) & MXR_CFG_SCAN_PROGRASSIVE)
+ change_bit(MXR_EVENT_TOP, &mdev->event_flags);
wake_up(&mdev->event_queue);
- }
-
- /* clear interrupts */
- if (~val & MXR_INT_EN_VSYNC) {
/* vsync interrupt use different bit for read and clear */
- val &= ~MXR_INT_EN_VSYNC;
+ val &= ~MXR_INT_STATUS_VSYNC;
val |= MXR_INT_CLEAR_VSYNC;
}
+
+ /* clear interrupts */
mxr_write(mdev, MXR_INT_STATUS, val);
spin_unlock(&mdev->reg_slock);
/* leave on non-vsync event */
if (~val & MXR_INT_CLEAR_VSYNC)
return IRQ_HANDLED;
+ /* skip layer update on bottom field */
+ if (!test_bit(MXR_EVENT_TOP, &mdev->event_flags))
+ return IRQ_HANDLED;
for (i = 0; i < MXR_MAX_LAYERS; ++i)
mxr_irq_layer_handle(mdev->layer[i]);
return IRQ_HANDLED;
@@ -333,6 +337,7 @@ void mxr_reg_streamon(struct mxr_device *mdev)
/* start MIXER */
mxr_write_mask(mdev, MXR_STATUS, ~0, MXR_STATUS_REG_RUN);
+ set_bit(MXR_EVENT_TOP, &mdev->event_flags);
spin_unlock_irqrestore(&mdev->reg_slock, flags);
}