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soc: qcom: geni-se: Add geni_icc_set_bw_ab() function

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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 <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Praveen Talari <praveen.talari@oss.qualcomm.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Link: https://lore.kernel.org/r/20260227061544.1785978-3-praveen.talari@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Praveen Talari
2026-02-27 11:45:33 +05:30
committed by Bjorn Andersson
parent e231930279
commit f746fedb89
2 changed files with 23 additions and 0 deletions
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22
drivers/soc/qcom/qcom-geni-se.c
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@@ -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;

1
include/linux/soc/qcom/geni-se.h
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@@ -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);