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Tegra SoC has 2 independent display controllers called DC_A and DC_B, they are handled differently by internal video devices like DSI and HDMI controllers so it is important for last to know which display controller is used to properly set up registers. To achieve this, a pipe field was added to pdata to pass display controller id to internal Tegra SoC devices. Tested-by: Agneli <poczt@protonmail.ch> # Toshiba AC100 T20 Tested-by: Robert Eckelmann <longnoserob@gmail.com> # ASUS TF101 Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # ASUS Grouper E1565 Tested-by: Ion Agorria <ion@agorria.com> # HTC One X Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # Nvidia Tegratab T114 Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>