diff options
author | Ayushee <ayushee.shah@intel.com> | 2020-06-26 12:14:25 -0700 |
---|---|---|
committer | Commit Bot <commit-bot@chromium.org> | 2020-07-17 02:57:09 +0000 |
commit | 5270ea2b0cfc2ce699281c2e59ffce3546551d7e (patch) | |
tree | 04015789df81cfe1c8559a5d300ca80789ce0d58 /include/usb_dp_alt_mode.h | |
parent | 51cf32c16205af580dc1475ddf2c5731e199a133 (diff) | |
download | chrome-ec-5270ea2b0cfc2ce699281c2e59ffce3546551d7e.tar.gz |
TCPMv2: Add common exit mode for all the alternate modes
When chipset is transitioning to a new state or on sysjump, the SOC
re-negotiates to enter an alternate mode on booting up.
This commit:
1. Adds a common DPM function to check for all the active alternate modes
one at a time, construct the VDM and send the DPM request to exit the
mode.
2. Marks thunderbolt mode as inactive in DFP's thunderbolt mode exit
function.
BUG=b:152235216
BRANCH=None
TEST=Tested on volteer:
1. On connecting a DP dongle, able to enter into DP alternate mode
on reboot
2. On connecting a Thunderbolt dock, able to enter into Thunderbolt
mode on reboot
Change-Id: I7da6a4b08cab9abb3446c0dafdc7c9e9378ef00e
Signed-off-by: Ayushee <ayushee.shah@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2270877
Tested-by: Abe Levkoy <alevkoy@chromium.org>
Reviewed-by: Abe Levkoy <alevkoy@chromium.org>
Commit-Queue: Abe Levkoy <alevkoy@chromium.org>
Diffstat (limited to 'include/usb_dp_alt_mode.h')
-rw-r--r-- | include/usb_dp_alt_mode.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/usb_dp_alt_mode.h b/include/usb_dp_alt_mode.h index 5fa703e109..4aceecd4ec 100644 --- a/include/usb_dp_alt_mode.h +++ b/include/usb_dp_alt_mode.h @@ -24,6 +24,15 @@ void dp_init(int port); /* + * Returns True if DisplayPort mode is in active state + * + * @param port USB-C port number + * @return True if DisplayPort mode is in active state + * False otherwise + */ +bool dp_is_active(int port); + +/* * Handles received DisplayPort VDM ACKs. * * @param port USB-C port number |