Fixes Buffer corruption on DMA output from fimc-lite
Signed-off-by: Arun Kumar K <arun...@samsung.com>
Signed-off-by: Shaik Ameer Basha <shaik.am...@samsung.com>
---
drivers/media/platform/exynos4-is/fimc-lite-reg.c | 3 ++-
drivers/media/platform/exynos4-is/fimc-lite.c | 14 +++++++++-----
2 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/drivers/media/platform/exynos4-is/fimc-lite-reg.c
b/drivers/media/platform/exynos4-is/fimc-lite-reg.c
index a1d566a..46eda5b 100644
--- a/drivers/media/platform/exynos4-is/fimc-lite-reg.c
+++ b/drivers/media/platform/exynos4-is/fimc-lite-reg.c
@@ -68,7 +68,8 @@ void flite_hw_set_interrupt_mask(struct fimc_lite *dev)
if (atomic_read(&dev->out_path) == FIMC_IO_DMA) {
intsrc = FLITE_REG_CIGCTRL_IRQ_OVFEN |
FLITE_REG_CIGCTRL_IRQ_LASTEN |
- FLITE_REG_CIGCTRL_IRQ_STARTEN;
+ FLITE_REG_CIGCTRL_IRQ_STARTEN |
+ FLITE_REG_CIGCTRL_IRQ_ENDEN;
} else {
/* An output to the FIMC-IS */
intsrc = FLITE_REG_CIGCTRL_IRQ_OVFEN |
diff --git a/drivers/media/platform/exynos4-is/fimc-lite.c
b/drivers/media/platform/exynos4-is/fimc-lite.c
index 1b12ea8..5de2dd4 100644
--- a/drivers/media/platform/exynos4-is/fimc-lite.c
+++ b/drivers/media/platform/exynos4-is/fimc-lite.c
@@ -301,8 +301,16 @@ static irqreturn_t flite_irq_handler(int irq, void *priv)
if ((intsrc & FLITE_REG_CISTATUS_IRQ_SRC_FRMSTART) &&
test_bit(ST_FLITE_RUN, &fimc->state) &&
- !list_empty(&fimc->active_buf_q) &&
!list_empty(&fimc->pending_buf_q)) {
+ vbuf = fimc_lite_pending_queue_pop(fimc);
+ flite_hw_set_output_addr(fimc, vbuf->paddr,
+ vbuf->vb.v4l2_buf.index);
+ fimc_lite_active_queue_add(fimc, vbuf);
+ }
+
+ if ((intsrc & FLITE_REG_CISTATUS_IRQ_SRC_FRMEND) &&
+ test_bit(ST_FLITE_RUN, &fimc->state) &&
+ !list_empty(&fimc->active_buf_q)) {
vbuf = fimc_lite_active_queue_pop(fimc);
ktime_get_ts(&ts);
tv = &vbuf->vb.v4l2_buf.timestamp;
@@ -311,10 +319,6 @@ static irqreturn_t flite_irq_handler(int irq, void *priv)
vbuf->vb.v4l2_buf.sequence = fimc->frame_count++;
flite_hw_clear_output_addr(fimc, vbuf->vb.v4l2_buf.index);
vb2_buffer_done(&vbuf->vb, VB2_BUF_STATE_DONE);
-
- vbuf = fimc_lite_pending_queue_pop(fimc);
- flite_hw_set_output_addr(fimc, vbuf->paddr,
- vbuf->vb.v4l2_buf.index);
}
if (test_bit(ST_FLITE_CONFIG, &fimc->state))
--
1.7.9.5
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