[PATCH 2/4] interconnect: qcom: Only wait for completion in AMC/WAKE by default

From: Mike Tipton
Date: Tue Jun 23 2020 - 00:09:13 EST


Change the default TCS wait behavior to only wait for completion in AMC
and WAKE. Waiting isn't necessary in the SLEEP TCS, since votes are only
being removed in this case. Resources can be safely disabled
asynchronously in parallel with the rest of the power collapse sequence.
This reduces the sleep entry latency.

Signed-off-by: Mike Tipton <mdtipton@xxxxxxxxxxxxxx>
---
drivers/interconnect/qcom/bcm-voter.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/interconnect/qcom/bcm-voter.c b/drivers/interconnect/qcom/bcm-voter.c
index e9f66f5c8a91..bb83ce7554b7 100644
--- a/drivers/interconnect/qcom/bcm-voter.c
+++ b/drivers/interconnect/qcom/bcm-voter.c
@@ -345,7 +345,7 @@ static int qcom_icc_bcm_voter_probe(struct platform_device *pdev)
voter->np = np;

if (of_property_read_u32(np, "qcom,tcs-wait", &voter->tcs_wait))
- voter->tcs_wait = QCOM_ICC_TAG_ALWAYS;
+ voter->tcs_wait = QCOM_ICC_TAG_ACTIVE_ONLY;

mutex_init(&voter->lock);
INIT_LIST_HEAD(&voter->commit_list);
--
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