[PATCH v4 02/13] soc: qcom: geni-se: Add geni_icc_set_bw_ab() function
From: Praveen Talari <hidden>
Date: 2026-02-02 18:09:52
Also in:
linux-arm-msm, linux-i2c, lkml
Subsystem:
arm/qualcomm mailing list, arm/qualcomm support, the rest · Maintainers:
Bjorn Andersson, Konrad Dybcio, Linus Torvalds
Add a new function geni_icc_set_bw_ab() that allows callers to set average bandwidth values for all ICC (Interconnect) paths in a single call. This function takes separate parameters for core, config, and DDR average bandwidth values and applies them to the respective ICC paths. This provides a more convenient API for drivers that need to configure specific average bandwidth values. Co-developed-by: Konrad Dybcio <redacted> Signed-off-by: Konrad Dybcio <redacted> Signed-off-by: Praveen Talari <redacted> --- drivers/soc/qcom/qcom-geni-se.c | 22 ++++++++++++++++++++++ include/linux/soc/qcom/geni-se.h | 1 + 2 files changed, 23 insertions(+)
diff --git a/drivers/soc/qcom/qcom-geni-se.c b/drivers/soc/qcom/qcom-geni-se.c
index b6167b968ef6..b0542f836453 100644
--- a/drivers/soc/qcom/qcom-geni-se.c
+++ b/drivers/soc/qcom/qcom-geni-se.c@@ -946,6 +946,28 @@ int geni_icc_set_bw(struct geni_se *se) } EXPORT_SYMBOL_GPL(geni_icc_set_bw); +/** + * geni_icc_set_bw_ab() - Set average bandwidth for all ICC paths and apply + * @se: Pointer to the concerned serial engine. + * @core_ab: Average bandwidth in kBps for GENI_TO_CORE path. + * @cfg_ab: Average bandwidth in kBps for CPU_TO_GENI path. + * @ddr_ab: Average bandwidth in kBps for GENI_TO_DDR path. + * + * Sets bandwidth values for all ICC paths and applies them. DDR path is + * optional and only set if it exists. + * + * Return: 0 on success, negative error code on failure. + */ +int geni_icc_set_bw_ab(struct geni_se *se, u32 core_ab, u32 cfg_ab, u32 ddr_ab) +{ + se->icc_paths[GENI_TO_CORE].avg_bw = core_ab; + se->icc_paths[CPU_TO_GENI].avg_bw = cfg_ab; + se->icc_paths[GENI_TO_DDR].avg_bw = ddr_ab; + + return geni_icc_set_bw(se); +} +EXPORT_SYMBOL_GPL(geni_icc_set_bw_ab); + void geni_icc_set_tag(struct geni_se *se, u32 tag) { int i;
diff --git a/include/linux/soc/qcom/geni-se.h b/include/linux/soc/qcom/geni-se.h
index 0a984e2579fe..980aabea2157 100644
--- a/include/linux/soc/qcom/geni-se.h
+++ b/include/linux/soc/qcom/geni-se.h@@ -528,6 +528,7 @@ void geni_se_rx_dma_unprep(struct geni_se *se, dma_addr_t iova, size_t len); int geni_icc_get(struct geni_se *se, const char *icc_ddr); int geni_icc_set_bw(struct geni_se *se); +int geni_icc_set_bw_ab(struct geni_se *se, u32 core_ab, u32 cfg_ab, u32 ddr_ab); void geni_icc_set_tag(struct geni_se *se, u32 tag); int geni_icc_enable(struct geni_se *se);
--
2.34.1