interconnect: qcom: icc-rpmh: Add BCMs to commit list in pre_aggregate

commit b95b668eaaa2574e8ee72f143c52075e9955177e upstream.

We're only adding BCMs to the commit list in aggregate(), but there are
cases where pre_aggregate() is called without subsequently calling
aggregate(). In particular, in icc_sync_state() when a node with initial
BW has zero requests. Since BCMs aren't added to the commit list in
these cases, we don't actually send the zero BW request to HW. So the
resources remain on unnecessarily.

Add BCMs to the commit list in pre_aggregate() instead, which is always
called even when there are no requests.

Signed-off-by: Mike Tipton <mdtipton@codeaurora.org>
[georgi: remove icc_sync_state for platforms with incomplete support]
Link: https://lore.kernel.org/r/20211125174751.25317-1-djakov@kernel.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
[dianders: dropped sm8350.c which isn't present in 5.10]
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/interconnect/qcom/icc-rpmh.c b/drivers/interconnect/qcom/icc-rpmh.c
index f6fae64861ce873bca8105e2dcc1038b81e6901c..27cc5f03611cbe91e0bf50a903296829ecf81782 100644 (file)
--- a/drivers/interconnect/qcom/icc-rpmh.c
+++ b/drivers/interconnect/qcom/icc-rpmh.c
@@ -20,13 +20,18 @@ void qcom_icc_pre_aggregate(struct icc_node *node)
 {
        size_t i;
        struct qcom_icc_node *qn;
+       struct qcom_icc_provider *qp;
 
        qn = node->data;
+       qp = to_qcom_provider(node->provider);
 
        for (i = 0; i < QCOM_ICC_NUM_BUCKETS; i++) {
                qn->sum_avg[i] = 0;
                qn->max_peak[i] = 0;
        }
+
+       for (i = 0; i < qn->num_bcms; i++)
+               qcom_icc_bcm_voter_add(qp->voter, qn->bcms[i]);
 }
 EXPORT_SYMBOL_GPL(qcom_icc_pre_aggregate);
 
@@ -44,10 +49,8 @@ int qcom_icc_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
 {
        size_t i;
        struct qcom_icc_node *qn;
-       struct qcom_icc_provider *qp;
 
        qn = node->data;
-       qp = to_qcom_provider(node->provider);
 
        if (!tag)
                tag = QCOM_ICC_TAG_ALWAYS;
@@ -67,9 +70,6 @@ int qcom_icc_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
        *agg_avg += avg_bw;
        *agg_peak = max_t(u32, *agg_peak, peak_bw);
 
-       for (i = 0; i < qn->num_bcms; i++)
-               qcom_icc_bcm_voter_add(qp->voter, qn->bcms[i]);
-
        return 0;
 }
 EXPORT_SYMBOL_GPL(qcom_icc_aggregate);

diff --git a/drivers/interconnect/qcom/sm8150.c b/drivers/interconnect/qcom/sm8150.c
index c76b2c7f9b106dad1a2807bacbbbf939531de873..b936196c229c805223dd2ca264913f42202bde76 100644 (file)
--- a/drivers/interconnect/qcom/sm8150.c
+++ b/drivers/interconnect/qcom/sm8150.c
@@ -627,7 +627,6 @@ static struct platform_driver qnoc_driver = {
        .driver = {
                .name = "qnoc-sm8150",
                .of_match_table = qnoc_of_match,
-               .sync_state = icc_sync_state,
        },
 };
 module_platform_driver(qnoc_driver);

diff --git a/drivers/interconnect/qcom/sm8250.c b/drivers/interconnect/qcom/sm8250.c
index cc558fec74e38780de5d42b75ca412cee7a9bb7b..40820043c8d368748ae63cb795dfe9dd66a3e6d1 100644 (file)
--- a/drivers/interconnect/qcom/sm8250.c
+++ b/drivers/interconnect/qcom/sm8250.c
@@ -643,7 +643,6 @@ static struct platform_driver qnoc_driver = {
        .driver = {
                .name = "qnoc-sm8250",
                .of_match_table = qnoc_of_match,
-               .sync_state = icc_sync_state,
        },
 };
 module_platform_driver(qnoc_driver);