linux-kernel - Re: [PATCH 2/3] interconnect: qcom: qcs8300: enable QoS configuration

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Message-ID: <5fcfbd5a-bd08-4549-9846-29c3da888a84@oss.qualcomm.com>
Date: Mon, 1 Dec 2025 16:06:45 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Odelu Kukatla <odelu.kukatla@....qualcomm.com>,
        Georgi Djakov <djakov@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: Raviteja Laggyshetty <raviteja.laggyshetty@....qualcomm.com>,
        Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Mike Tipton <mike.tipton@....qualcomm.com>
Subject: Re: [PATCH 2/3] interconnect: qcom: qcs8300: enable QoS configuration

On 11/28/25 4:01 PM, Odelu Kukatla wrote:
> Enable QoS configuration for master ports with predefined priority
> and urgency forwarding.
> 
> Signed-off-by: Odelu Kukatla <odelu.kukatla@....qualcomm.com>
> ---
>  drivers/interconnect/qcom/qcs8300.c | 375 ++++++++++++++++++++++++++++
>  1 file changed, 375 insertions(+)
> 
> diff --git a/drivers/interconnect/qcom/qcs8300.c b/drivers/interconnect/qcom/qcs8300.c
> index 70a377bbcf29..3f4fe62148d3 100644
> --- a/drivers/interconnect/qcom/qcs8300.c
> +++ b/drivers/interconnect/qcom/qcs8300.c
> @@ -186,6 +186,13 @@ static struct qcom_icc_node qxm_qup3 = {
>  	.name = "qxm_qup3",
>  	.channels = 1,
>  	.buswidth = 8,
> +	.qosbox = &(const struct qcom_icc_qosbox) {
> +		.num_ports = 1,
> +		.port_offsets = { 0x11000 },
> +		.prio_fwd_disable = 1,
> +		.prio = 2,
> +		.urg_fwd = 0,

FWIW prio_fwd_disable and urg_uwd are booleans, so true/false would be neat

I checked a couple nodes and things seem alright, hopefully the .max_register
values you set don't clip anything

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

Konrad