diff mbox series

[4/5] drm/msm/dp: Try looking for link-frequencies into the port@0's endpoint first

Message ID 20240129-x1e80100-display-v1-4-0d9eb8254df0@linaro.org
State New
Headers show
Series drm/msm: Add display support for X1E80100 | expand

Commit Message

Abel Vesa Jan. 29, 2024, 1:18 p.m. UTC 
From: Abhinav Kumar <quic_abhinavk@quicinc.com>

On platforms where the endpoint used is on port@0, looking for port@1
instead results in just ignoring the max link-frequencies altogether.
Look at port@0 first, then, if not found, look for port@1.

Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
 drivers/gpu/drm/msm/dp/dp_parser.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/dp/dp_parser.c b/drivers/gpu/drm/msm/dp/dp_parser.c
index 7032dcc8842b..eec5b8b83f4b 100644
--- a/drivers/gpu/drm/msm/dp/dp_parser.c
+++ b/drivers/gpu/drm/msm/dp/dp_parser.c
@@ -97,7 +97,11 @@  static u32 dp_parser_link_frequencies(struct device_node *of_node)
 	u64 frequency = 0;
 	int cnt;
 
-	endpoint = of_graph_get_endpoint_by_regs(of_node, 1, 0); /* port@1 */
+	endpoint = of_graph_get_endpoint_by_regs(of_node, 0, 0); /* port@0 */
+
+	if (!endpoint)
+		endpoint = of_graph_get_endpoint_by_regs(of_node, 1, 0); /* port@1 */
+
 	if (!endpoint)
 		return 0;