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authorSakari Ailus <sakari.ailus@linux.intel.com>2019-03-02 10:23:12 -0500
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>2019-03-20 06:35:20 -0400
commitfff35d45e16fae125c6000cb87e254cb634ac7fb (patch)
tree9f88a31a2923ed9bb53bcf0be43a0ebfe8ca7499
parent9d3863736a267068a0ae67c6695af8770ef330b7 (diff)
media: v4l2-fwnode: The first default data lane is 0 on C-PHY
C-PHY has no clock lanes. Therefore the first data lane is 0 by default. Fixes: edc6d56c2e7e ("media: v4l: fwnode: Support parsing of CSI-2 C-PHY endpoints") Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
-rw-r--r--drivers/media/v4l2-core/v4l2-fwnode.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/media/v4l2-core/v4l2-fwnode.c b/drivers/media/v4l2-core/v4l2-fwnode.c
index c5b2dbf38e95..ccefa55813ad 100644
--- a/drivers/media/v4l2-core/v4l2-fwnode.c
+++ b/drivers/media/v4l2-core/v4l2-fwnode.c
@@ -229,6 +229,10 @@ static int v4l2_fwnode_endpoint_parse_csi2_bus(struct fwnode_handle *fwnode,
if (bus_type == V4L2_MBUS_CSI2_DPHY ||
bus_type == V4L2_MBUS_CSI2_CPHY || lanes_used ||
have_clk_lane || (flags & ~V4L2_MBUS_CSI2_CONTINUOUS_CLOCK)) {
+ /* Only D-PHY has a clock lane. */
+ unsigned int dfl_data_lane_index =
+ bus_type == V4L2_MBUS_CSI2_DPHY;
+
bus->flags = flags;
if (bus_type == V4L2_MBUS_UNKNOWN)
vep->bus_type = V4L2_MBUS_CSI2_DPHY;
@@ -237,7 +241,7 @@ static int v4l2_fwnode_endpoint_parse_csi2_bus(struct fwnode_handle *fwnode,
if (use_default_lane_mapping) {
bus->clock_lane = 0;
for (i = 0; i < num_data_lanes; i++)
- bus->data_lanes[i] = 1 + i;
+ bus->data_lanes[i] = dfl_data_lane_index + i;
} else {
bus->clock_lane = clock_lane;
for (i = 0; i < num_data_lanes; i++)