diff options
| author | Hugues Fruchet <hugues.fruchet@st.com> | 2019-04-01 11:55:00 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-04-22 18:07:33 +0300 |
| commit | 1be0a2b702308f16fc1c1a58ada5aba13afc123e (patch) | |
| tree | 0fc5ac4f7ee2613d6e6a9801fb2d9ac471ca494d /drivers/media/platform/stm32 | |
| parent | d8986600dcb6c55027f171334e4705233cdb8919 (diff) | |
| download | linux-1be0a2b702308f16fc1c1a58ada5aba13afc123e.tar.xz | |
media: stm32-dcmi: do not emit error trace in case of few overrun
Report overrun error only when it exceeds a given threshold.
Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/platform/stm32')
| -rw-r--r-- | drivers/media/platform/stm32/stm32-dcmi.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/media/platform/stm32/stm32-dcmi.c b/drivers/media/platform/stm32/stm32-dcmi.c index 693415cf8518..b63d57cd89e5 100644 --- a/drivers/media/platform/stm32/stm32-dcmi.c +++ b/drivers/media/platform/stm32/stm32-dcmi.c @@ -97,6 +97,8 @@ enum state { #define TIMEOUT_MS 1000 +#define OVERRUN_ERROR_THRESHOLD 3 + struct dcmi_graph_entity { struct device_node *node; @@ -446,11 +448,13 @@ static irqreturn_t dcmi_irq_thread(int irq, void *arg) spin_lock_irq(&dcmi->irqlock); - if ((dcmi->misr & IT_OVR) || (dcmi->misr & IT_ERR)) { - dcmi->errors_count++; - if (dcmi->misr & IT_OVR) - dcmi->overrun_count++; + if (dcmi->misr & IT_OVR) { + dcmi->overrun_count++; + if (dcmi->overrun_count > OVERRUN_ERROR_THRESHOLD) + dcmi->errors_count++; } + if (dcmi->misr & IT_ERR) + dcmi->errors_count++; if (dcmi->sd_format->fourcc == V4L2_PIX_FMT_JPEG && dcmi->misr & IT_FRAME) { |