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authorArchit Taneja <architt@codeaurora.org>2016-04-27 15:36:53 +0530
committerRob Clark <robdclark@gmail.com>2016-07-16 10:08:46 -0400
commitb9ac76f6ac984158175f8928d10bc1a7038b699b (patch)
tree8cd46b7d7719324c6abb088b1d1a3f62fb58dae7 /drivers
parent1f238536ae37b179e8beb679bcd0b7259eb5e886 (diff)
drm/msm/dsi: Modify port parsing
The DSI interface is going to have two ports defined in its device node. The first port is always going to be the link between the MDP output and the input to DSI, the second port is going to be the link between the DSI output and the connected panel/bridge: ----- ----- ------- | MDP | ------> | DSI | ------> | Panel | ----- ----- ------- (Port 0) (Port 1) Until now, there was only one Port representing the output. Update the DSI host driver such that it parses Port #1 for a connected device. Signed-off-by: Archit Taneja <architt@codeaurora.org> Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/msm/dsi/dsi_host.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index a3e47ad83eb3..4f1335e47f5e 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -1602,12 +1602,12 @@ static int dsi_host_parse_dt(struct msm_dsi_host *msm_host)
}
/*
- * Get the first endpoint node. In our case, dsi has one output port
- * to which the panel is connected. Don't return an error if a port
- * isn't defined. It's possible that there is nothing connected to
- * the dsi output.
+ * Get the endpoint of the output port of the DSI host. In our case,
+ * this is mapped to port number with reg = 1. Don't return an error if
+ * the remote endpoint isn't defined. It's possible that there is
+ * nothing connected to the dsi output.
*/
- endpoint = of_graph_get_next_endpoint(np, NULL);
+ endpoint = of_graph_get_endpoint_by_regs(np, 1, -1);
if (!endpoint) {
dev_dbg(dev, "%s: no endpoint\n", __func__);
return 0;