Hi, Am Montag, 27. November 2023, 13:44:30 CET schrieb Michael Walle: > Hi, > > > The tc358765 is similar to tc358775 except for the stdby-gpios. > > Bad timing (for me). I'm about to send a bigger patch series for the > tc358775 which fixes the (completely) broken initialialization. And also > contains some of your fixes. > > That being said, I intend to make the standby gpio optional also for the > tc358755, because it might just be hardwired on the board. > > But second, I'm really curious if this bridge is working for you correctly > as it is at the moment. One particular thing I've noticed is that you must > release the reset while both the clock and the data lanes are in LP11 mode. > Otherwise, the bridge won't work properly (i.e. horizontally shifted > picture, or no picture at all). Apparently this seems to be true for all Toshiba DSI bridges. The power on sequence for TC9595 (TC358767) also requires LP-11 before releasing the reset signal RESX. Additionally LP-11 is requires for using the DP AUX channel. This also relates to the patch set from Dmitry [1]. Best regards, Alexander [1] https://lore.kernel.org/dri-devel/20231016165355.1327217-1-dmitry.baryshkov@xxxxxxxxxx/ > What DSI host controller are you using? > > -michael -- 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/
