linux-kernel - [PATCH V2 0/4] Enable UFS MCQ support for SM8650 and SM8750

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Message-ID: <20250811143139.16422-1-quic_rdwivedi@quicinc.com>
Date: Mon, 11 Aug 2025 20:01:35 +0530
From: Ram Kumar Dwivedi <quic_rdwivedi@...cinc.com>
To: <mani@...nel.org>, <alim.akhtar@...sung.com>, <avri.altman@....com>,
        <bvanassche@....org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <andersson@...nel.org>,
        <konradybcio@...nel.org>, <agross@...nel.org>,
        <James.Bottomley@...senPartnership.com>, <martin.petersen@...cle.com>
CC: <linux-arm-msm@...r.kernel.org>, <linux-scsi@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH V2 0/4] Enable UFS MCQ support for SM8650 and SM8750

This patch series enables Multi-Circular Queue (MCQ) support for the UFS 
host controller on Qualcomm SM8650 and SM8750 platforms. MCQ is a modern
queuing model that improves performance and scalability by allowing
multiple hardware queues.

Patch 1 updates the device tree bindings to allow the additional register
regions and reg-names required for MCQ operation.

Patches 2 and 3 update the device trees for SM8650 and SM8750 respectively
to enable MCQ by adding the necessary register mappings and MSI parent.

Patch 4 is streamlining UFS MCQ resource mapping with a single MCQ region
mapping.

Tested on SM8650 and SM8750.

Changes from v1: 
1. As per Krzysztof's suggestion, replaced mcq_vs and mcq_sqd DT mappings
   with a single MCQ region mapping.
2. Minor changes in commit messge as per Krzysztof's suggestion.

Nitin Rawat (1):
  ufs: ufs-qcom: Streamline UFS MCQ resource mapping

Palash Kambar (1):
  arm64: dts: qcom: sm8750: Enable MCQ support for UFS controller

Ram Kumar Dwivedi (2):
  dt-bindings: ufs: qcom: Document MCQ register space for UFS
  arm64: dts: qcom: sm8650: Enable MCQ support for UFS controller

 .../devicetree/bindings/ufs/qcom,ufs.yaml     |  16 +-
 arch/arm64/boot/dts/qcom/sm8650.dtsi          |   7 +-
 arch/arm64/boot/dts/qcom/sm8750.dtsi          |   8 +-
 drivers/ufs/host/ufs-qcom.c                   | 146 +++++++-----------
 drivers/ufs/host/ufs-qcom.h                   |  21 ++-
 5 files changed, 94 insertions(+), 104 deletions(-)

-- 
2.50.1