[PATCH v2 4/9] interconnect: qcom: icc-rpm: allow overwriting get_bw callback

Dmitry Baryshkov
2026-03-24T00:11:09Z

MSM8974 requires a separate get_bw callback, since on that platform
increasing the clock rate for some of the NoCs during boot may lead to
hangs. For the details see commit 9caf2d956cfa ("interconnect: qcom:
msm8974: Don't boost the NoC rate during boot").

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
---
drivers/interconnect/qcom/icc-rpm.c | 1 +
drivers/interconnect/qcom/icc-rpm.h | 1 +
2 files changed, 2 insertions(+)

diff --git a/drivers/interconnect/qcom/icc-rpm.c b/drivers/interconnect/qcom/icc-rpm.c
index ea1042d38128..aec2f84cd56f 100644
--- a/drivers/interconnect/qcom/icc-rpm.c
+++ b/drivers/interconnect/qcom/icc-rpm.c
@@ -553,6 +553,7 @@ int qnoc_probe(struct platform_device *pdev)
provider->aggregate = qcom_icc_bw_aggregate;
provider->xlate_extended = qcom_icc_xlate_extended;
provider->data = data;
+ provider->get_bw = desc->get_bw;

icc_provider_init(provider);

diff --git a/drivers/interconnect/qcom/icc-rpm.h b/drivers/interconnect/qcom/icc-rpm.h
index 3366531f66fc..cbf0a365839d 100644
--- a/drivers/interconnect/qcom/icc-rpm.h
+++ b/drivers/interconnect/qcom/icc-rpm.h
@@ -135,6 +135,7 @@ struct qcom_icc_desc {
unsigned int qos_offset;
u16 ab_coeff;
u16 ib_coeff;
+ int (*get_bw)(struct icc_node *node, u32 *avg, u32 *peak);
};

/* Valid for all bus types */

--
2.47.3