Hi, On Mon, Dec 28, 2020 at 07:37:11PM +0530, Shah, Nehal-bakulchandra wrote: > On 11/26/2020 9:48 PM, Shah, Nehal-bakulchandra wrote: > > On 11/26/2020 5:47 PM, Heikki Krogerus wrote: > >> On Wed, Nov 25, 2020 at 08:51:24PM +0530, Shah, Nehal-bakulchandra wrote: > >>> Hi Heikki, > >>> > >>> I am working on the project with PD controller as TPS6598x. The current > >>> implementation of TPS6598x does not invoke display alt mode driver . > >>> > >>> Can you help me to understand how to achieve this? > >> You should be able to get an idea how to achieve that for example by > >> checking how we did it for UCSI: drivers/usb/typec/ucsi/displayport.c > >> > >> I think you should start by first only registering the alternate mode > >> without any control. That way you should not need to deal with > >> anything else except the DP SID Status register. > >> > >> After that we can add control as the next step. > >> > >> If you need more help, let me know. > >> > >> Br, > > Thanks for the input. I will have a look. > > > > regards > > > > Nehal > > I am not able to understand who will trigger ucsi_displayport_exit ? for enter > mode , i understood it goes through vdm statemachine. But how exit is getting > triggered?. ucsi_displayport_exit() ends up being called when the displayport altmode driver (drivers/usb/typec/altmodes/displayport.c) executes typec_altmode_exit(). Br, -- heikki
