6.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
[ Upstream commit 1a70ca71547be051769f0628aa09717694f508f0 ]
BCMs with an enable_mask expect to only have that specific value written
to them. The current implementation only works by miracle for BCMs with
enable mask == BIT(0), as the minimal vote we've been using so far just
so happens to be equal to that.
Use the correct value with keepalive voting.
Fixes: d8630f050d3f ("interconnect: qcom: Add support for mask-based BCMs")
Reported-by: Bjorn Andersson <quic_bjorande@xxxxxxxxxxx>
Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230811-topic-icc_fix_1he-v2-2-0620af8ac133@xxxxxxxxxx
Signed-off-by: Georgi Djakov <djakov@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/interconnect/qcom/bcm-voter.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/interconnect/qcom/bcm-voter.c b/drivers/interconnect/qcom/bcm-voter.c
index d857eb8838b95..a2d437a05a11f 100644
--- a/drivers/interconnect/qcom/bcm-voter.c
+++ b/drivers/interconnect/qcom/bcm-voter.c
@@ -81,10 +81,10 @@ static void bcm_aggregate_mask(struct qcom_icc_bcm *bcm)
}
if (bcm->keepalive) {
- bcm->vote_x[QCOM_ICC_BUCKET_AMC] = 1;
- bcm->vote_x[QCOM_ICC_BUCKET_WAKE] = 1;
- bcm->vote_y[QCOM_ICC_BUCKET_AMC] = 1;
- bcm->vote_y[QCOM_ICC_BUCKET_WAKE] = 1;
+ bcm->vote_x[QCOM_ICC_BUCKET_AMC] = bcm->enable_mask;
+ bcm->vote_x[QCOM_ICC_BUCKET_WAKE] = bcm->enable_mask;
+ bcm->vote_y[QCOM_ICC_BUCKET_AMC] = bcm->enable_mask;
+ bcm->vote_y[QCOM_ICC_BUCKET_WAKE] = bcm->enable_mask;
}
}
--
2.40.1
