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SubjectRe: [PATCH v5 08/10] interconnect: qcom: msm8996: Specify no bus clock scaling on A0NoC
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On 17.02.2023 11:46, Konrad Dybcio wrote:
> A0NoC only does bus scaling through RPM votes and does not have any
> ICC clocks. Describe this.
>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
This is bad, as devm_clk_get_bulk{"", _optional} doesn't
check if num_clocks makes sense and passes "-1" down the
devres alloc chain..

I'll rework this for the next revision by simply assigning
the common "bus", "bus_a" set everywhere instead of relying
on it being there by default..

Konrad
> drivers/interconnect/qcom/msm8996.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/interconnect/qcom/msm8996.c b/drivers/interconnect/qcom/msm8996.c
> index 1a5e0ad36cc4..45eb8675fb11 100644
> --- a/drivers/interconnect/qcom/msm8996.c
> +++ b/drivers/interconnect/qcom/msm8996.c
> @@ -1817,6 +1817,7 @@ static const struct qcom_icc_desc msm8996_a0noc = {
> .type = QCOM_ICC_NOC,
> .nodes = a0noc_nodes,
> .num_nodes = ARRAY_SIZE(a0noc_nodes),
> + .num_bus_clocks = -1, /* No bus clock scaling */
> .intf_clocks = a0noc_intf_clocks,
> .num_intf_clocks = ARRAY_SIZE(a0noc_intf_clocks),
> .has_bus_pd = true,
>

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