Alvium camera by default is in free running mode. Datasheet say that
acquisition frame rate reg can only be used if frame start trigger
mode is set to off.
Enable r/w aquisition frame rate and turn off trigger mode.
Signed-off-by: Tommaso Merciai <tomm.merciai@xxxxxxxxx>
---
drivers/media/i2c/alvium-csi2.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/media/i2c/alvium-csi2.c b/drivers/media/i2c/alvium-csi2.c
index 7a38c424ea48..a88809333e56 100644
--- a/drivers/media/i2c/alvium-csi2.c
+++ b/drivers/media/i2c/alvium-csi2.c
@@ -1189,6 +1189,20 @@ static int alvium_set_frame_rate(struct alvium_dev *alvium, u64 fr)
struct device *dev = &alvium->i2c_client->dev;
int ret;
+ ret = alvium_write_hshake(alvium, REG_BCRM_ACQUISITION_FRAME_RATE_EN_RW,
+ 1);
+ if (ret) {
+ dev_err(dev, "Fail to set acquisition frame rate enable reg\n");
+ return ret;
+ }
+
+ ret = alvium_write_hshake(alvium, REG_BCRM_FRAME_START_TRIGGER_MODE_RW,
+ 0);
+ if (ret) {
+ dev_err(dev, "Fail to set frame start trigger mode reg\n");
+ return ret;
+ }
+
ret = alvium_write_hshake(alvium, REG_BCRM_ACQUISITION_FRAME_RATE_RW,
fr);
if (ret) {
--
2.34.1
