Hello, after .IMX8M[MNP] support for samsung-dsim has been integrated into next, I'm trying add support for the MIPI-DSI-to-DP bridge (TC358767) on my TQMa8MPxL/ MBa8MPxL board (imx8mp-tqma8mpql-mba8mpxl.dts). Both, DSI host and device, probe and attach successfully. But once lcdif is probing and tries to get modes from display I run into timeouts on the aux channel. Specifically AUX_TIMEOUT is set in DP0_AUXSTATUS after the transfer has been issued. I've been told that for aux channel to be actually usable the clock line (and D0?) has to be in LP-11. Register 0x218 (DSI_LANESTATUS1) of tc358867 is set to 0x1c which indicates that clock and data lane 0 are not in stop state, while data lanes 1 to 3 are. Is there a way to explicitly set a DSI host into LP-11 state before the pipeline is enabled? Reading DPCD is used to get the modes needed for configuring the pipeline. Best regards, Alexander -- TQ-Systems GmbH | Mühlstraße 2, Gut Delling | 82229 Seefeld, Germany Amtsgericht München, HRB 105018 Geschäftsführer: Detlef Schneider, Rüdiger Stahl, Stefan Schneider http://www.tq-group.com/
