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authorzhaojohn <john.zhao@intel.com>2022-11-16 20:37:01 -0800
committerMartin L Roth <gaumless@gmail.com>2022-11-19 15:09:03 +0000
commit7e0b925162201060dc49e7e46b0715151d890583 (patch)
treec4e9f73624295c2371eb29cfeaef37dfa9439f3a /src/soc/ti/am335x/header.c
parent2b9ee5d79e1e6648436ce0ad542ed96966519b82 (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/ti/am335x/header.c')
0 files changed, 0 insertions, 0 deletions