[PATCH v1 2/2] [RFC] drm/tegra: dsi: remove tegra_output_probe use

[Svyatoslav Ryhel]

The tegra_output_probe() function parses DC, DSI, HDMI, and SOR nodes for
panel phandles, OF graph endpoints, EDID, HPD GPIOs, and DDC buses.
However, this function is redundant for DSI controllers that define the
panel as a child node.

Furthermore, it creates conflicts with modern dual-mode panel bindings
that use OF graph links to both DSI controllers. The function incorrectly
treats these links as standard panel links and attempts to resolve a panel
that should not be handled there. For example, this causes the Mi Pad
panel to fail initialization.

Testing shows that bypassing this function allows the Mi Pad to work
correctly while maintaining compatibility with other Tegra20 and Tegra114
DSI devices.

Signed-off-by: Svyatoslav Ryhel <clamor95@xxxxxxxxx>
---
 drivers/gpu/drm/tegra/dsi.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index 55259b68c933..5fbce17ea1fa 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -1594,10 +1594,6 @@ static int tegra_dsi_probe(struct platform_device *pdev)
 	if (err < 0)
 		return err;
 
-	err = tegra_output_probe(&dsi->output);
-	if (err < 0)
-		return err;
-
 	dsi->output.connector.polled = DRM_CONNECTOR_POLL_HPD;
 
 	/*
-- 
2.51.0