From: henryhsu <henryhsu@xxxxxxxxxxxx>
On Exynos5420, the STREAM_STAT bit raised on the JPGINTST register means
there is a syntax error or an unrecoverable error on compressed file
when ERR_INT_EN is set to 1.
Fix this case and report BUF_STATE_ERROR to videobuf2.
Signed-off-by: Henry-Ruey Hsu <henryhsu@xxxxxxxxxxxx>
Signed-off-by: Thierry Escande <thierry.escande@xxxxxxxxxxxxx>
---
drivers/media/platform/s5p-jpeg/jpeg-core.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c
index 430e925..db56135 100644
--- a/drivers/media/platform/s5p-jpeg/jpeg-core.c
+++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c
@@ -2894,6 +2894,7 @@ static irqreturn_t exynos3250_jpeg_irq(int irq, void *dev_id)
unsigned long payload_size = 0;
enum vb2_buffer_state state = VB2_BUF_STATE_DONE;
bool interrupt_timeout = false;
+ bool stream_error = false;
u32 irq_status;
spin_lock(&jpeg->slock);
@@ -2910,6 +2911,11 @@ static irqreturn_t exynos3250_jpeg_irq(int irq, void *dev_id)
jpeg->irq_status |= irq_status;
+ if (irq_status & EXYNOS3250_STREAM_STAT) {
+ stream_error = true;
+ dev_err(jpeg->dev, "Syntax error or unrecoverable error occurred.\n");
+ }
+
curr_ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev);
if (!curr_ctx)
@@ -2926,7 +2932,7 @@ static irqreturn_t exynos3250_jpeg_irq(int irq, void *dev_id)
EXYNOS3250_RDMA_DONE |
EXYNOS3250_RESULT_STAT))
payload_size = exynos3250_jpeg_compressed_size(jpeg->regs);
- else if (interrupt_timeout)
+ else if (interrupt_timeout || stream_error)
state = VB2_BUF_STATE_ERROR;
else
goto exit_unlock;
--
2.7.4
