tree 62edc80b545d8a496e368461fd546ad7f7501693
parent 982bf99c899f2948e40278a7be2973e28f85af69
author Subrata Banik <subratabanik@google.com> 1669894093 +0530
committer Felix Held <felix-coreboot@felixheld.de> 1670942210 +0000

soc/intel/cmn/tcss: Skip sending CONN IPC command during S3 resume

This patch skips sending CONN IPC command to PMC if system is resuming
from S3.

Sending CONN IPC command as part of `tcss_configure_dp_mode()` function
results into ERROR while system is resuming from S3.

Additionally, skip `configure_aux_bias_pads()` during S3 resume.

BUG=b:260984500
TEST=Able to test on Google/Rex.

Without this patch:
[ERROR]  pmc_send_ipc_cmd status: fatal
[ERROR]  Port 1 connect request failed
[SPEW ]  [TCSS] TcssInit() - End

With this patch:
No error seen during S3 resume.

Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I1dab7dc8b4ad76ca0c9630456803c1b9a320fe40
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70222
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>