RZ/V2L: MIPI Display probe issue

Question

Hi, 
 We trying to test MIPI Display in RZ/V2L board. 
 HW connection: 
 MIPI DSI lanes from CPU is connected to a Winstar MIPI DSI (P/N WF70A8TYAHMNGB). 
 We are not using any bridge. 
 
 Issue is, while booting probe is getting differed. We tried to debug some more and got that in below driver, a function is failing. 
 driver : drivers/gpu/drm/rcar-du/rcar_du_encoder.c 
 function: rcar_du_encoder_init 
 line : ret = drm_bridge_attach(encoder, bridge, NULL, 0); 
 
 In above function, attaching display fails with error code 517. 
 Kindly suggest if any changes in dts and driver is required. 
 
 Regards.

Chris · Accepted Answer

Navya said: Still probe fails 
 
 That is what you need to fix. You have to find out why the probe fails. 
 
 At the end of the probe function in the driver, it will call: 
 drm_panel_add(&panel->panel); 
 
 And then you will have a panel that the MIPI driver can select. 
 And, you will not have this issue anymore: 
 Navya said: Our display is not connected to any brige. Direct MIPI lanes from CPU is connected to display. Hence it goes to "else" condition and tries to find the display with below function mipi_dsi->panel = of_drm_find_panel(remote);

RZ/V2L: MIPI Display probe issue

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