diff options
| author | zhaojohn <john.zhao@intel.com> | 2022-11-16 20:37:01 -0800 |
|---|---|---|
| committer | Martin L Roth <gaumless@gmail.com> | 2022-11-19 15:09:03 +0000 |
| commit | 7e0b925162201060dc49e7e46b0715151d890583 (patch) | |
| tree | c4e9f73624295c2371eb29cfeaef37dfa9439f3a /src/soc/intel/common/block/lpss | |
| parent | 2b9ee5d79e1e6648436ce0ad542ed96966519b82 (diff) | |
soc/intel/common: Fix the TCSS DisplayPort detection flow
After DisplayPort is plugged into type-C port, its hpd signal
instantly presents and EC has mux_info for dp and hpd. This change
fixes the DP detection flow to avoid the 1 second delay while no DP
is connected. If DP is present, there will be requests towards PMC
through the sequence of connect, safe mode, dp and hpd mode.
BUG=b:247670186
TEST=Built image and validated the DisplayPort preboot feature on Rex.
Change-Id: I7cb95ec7fcc7e1a86e86466e6d45390eedcc4531
Signed-off-by: zhaojohn <john.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69694
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Diffstat (limited to 'src/soc/intel/common/block/lpss')
0 files changed, 0 insertions, 0 deletions