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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>
This commit is contained in:
Subrata Banik 2022-12-01 16:58:13 +05:30 committed by Felix Held
parent 982bf99c89
commit 97a45e6a2a
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/soc/intel/common/block/tcss/tcss.c
View File

@ -409,14 +409,14 @@ void tcss_configure(const struct typec_aux_bias_pads aux_bias_pads[MAX_TYPE_C_PO
if (!platform_is_resuming()) {
for (i = 0; i < num_ports; i++)
tcss_init_mux(i, &port_map[i]);
/* This should be performed before alternate modes are entered */
if (tcss_ops.configure_aux_bias_pads)
tcss_ops.configure_aux_bias_pads(aux_bias_pads);
if (CONFIG(ENABLE_TCSS_DISPLAY_DETECTION))
tcss_configure_dp_mode(port_map, num_ports);
}
/* This should be performed before alternate modes are entered */
if (tcss_ops.configure_aux_bias_pads)
tcss_ops.configure_aux_bias_pads(aux_bias_pads);
if (CONFIG(ENABLE_TCSS_DISPLAY_DETECTION))
tcss_configure_dp_mode(port_map, num_ports);
}
bool tcss_valid_tbt_auth(void)