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From 08a1910dd33fa0b5628d641854db8fb3200272f6 Mon Sep 17 00:00:00 2001
From: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Date: Wed, 19 Feb 2020 01:49:42 +0300
Subject: [PATCH] media: i2c: ti9x4: fix framesync
This fixes frames syncronization.
Cameras must start (fsinc start) simultaneously, hence enable
framesync when all cameras are set up
Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
---
drivers/media/i2c/soc_camera/ti9x4.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/media/i2c/soc_camera/ti9x4.c b/drivers/media/i2c/soc_camera/ti9x4.c
index b671736..9004bb1 100644
--- a/drivers/media/i2c/soc_camera/ti9x4.c
+++ b/drivers/media/i2c/soc_camera/ti9x4.c
@@ -218,8 +218,7 @@ static void ti9x4_initial_setup(struct i2c_client *client)
reg8_write(client, 0x1a, 2 & 0xff); /* FrameSync high time LSB */
reg8_write(client, 0x1b, priv->fs_time >> 8); /* FrameSync low time MSB */
reg8_write(client, 0x1c, priv->fs_time & 0xff); /* FrameSync low time LSB */
- reg8_write(client, 0x18, 0x01); /* Enable FrameSync, HI/LO mode, Frame clock from port0 */
-// reg8_write(client, 0x18, 0x80); /* Enable FrameSync, HI/LO mode, Frame clock from port0 */
+ reg8_write(client, 0x18, 0x00); /* Disable FrameSync - must be enabled after all cameras are set up */
#endif
}
@@ -415,6 +414,8 @@ static int ti9x4_registered_async(struct v4l2_subdev *sd)
struct i2c_client *client = priv->client;
reg8_write(client, 0x33, ((priv->lanes - 1) ^ 0x3) << 4 | 0x1); /* enable CSI output, set CSI lane count, non-continuous CSI mode */
+ reg8_write(client, 0x18, 0x01); /* Enable FrameSync, HI/LO mode, Frame clock from port0 */
+// reg8_write(client, 0x18, 0x80); /* Enable FrameSync, Frame clock is external */
return 0;
}
--
2.7.4
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