The latest datasheet (Rev.0.70) updates the D-PHY start-up sequence for
D-PHY operation. Unfortunately the datasheet do not add any additional
documentation on the magic values.
This have been tested together with the MAX96724 available on the single
board test platform and it works as expected.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
---
drivers/media/platform/renesas/rcar-csi2.c | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/drivers/media/platform/renesas/rcar-csi2.c b/drivers/media/platform/renesas/rcar-csi2.c
index 27ffdd28cbf7..5f62f26a6b6f 100644
--- a/drivers/media/platform/renesas/rcar-csi2.c
+++ b/drivers/media/platform/renesas/rcar-csi2.c
@@ -1349,15 +1349,15 @@ static int rcsi2_init_common_v4m(struct rcar_csi2 *priv, unsigned int mbps)
static const struct phtw_value step2[] = {
{ .data = 0x00, .code = 0x00 },
{ .data = 0x80, .code = 0xe0 },
- { .data = 0x01, .code = 0xe1 },
+ { .data = 0x31, .code = 0xe1 },
{ .data = 0x06, .code = 0x00 },
- { .data = 0x0f, .code = 0x11 },
+ { .data = 0x11, .code = 0x11 },
{ .data = 0x08, .code = 0x00 },
- { .data = 0x0f, .code = 0x11 },
+ { .data = 0x11, .code = 0x11 },
{ .data = 0x0a, .code = 0x00 },
- { .data = 0x0f, .code = 0x11 },
+ { .data = 0x11, .code = 0x11 },
{ .data = 0x0c, .code = 0x00 },
- { .data = 0x0f, .code = 0x11 },
+ { .data = 0x11, .code = 0x11 },
{ .data = 0x01, .code = 0x00 },
{ .data = 0x31, .code = 0xaa },
{ .data = 0x05, .code = 0x00 },
@@ -1370,6 +1370,11 @@ static int rcsi2_init_common_v4m(struct rcar_csi2 *priv, unsigned int mbps)
{ .data = 0x05, .code = 0x09 },
};
+ static const struct phtw_value step3[] = {
+ { .data = 0x01, .code = 0x00 },
+ { .data = 0x06, .code = 0xab },
+ };
+
if (priv->info->hsfreqrange) {
ret = rcsi2_set_phypll(priv, mbps);
if (ret)
@@ -1400,7 +1405,7 @@ static int rcsi2_init_common_v4m(struct rcar_csi2 *priv, unsigned int mbps)
return ret;
}
- return ret;
+ return rcsi2_phtw_write_array(priv, step3, ARRAY_SIZE(step3));
}
static int rcsi2_start_receiver_v4m(struct rcar_csi2 *priv,
--
2.47.1
