linux-kernel - [PATCH V1 0/3] ufs: ufs-qcom: Add support firmware managed platforms

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Message-Id: <20251114145646.2291324-1-ram.dwivedi@oss.qualcomm.com>
Date: Fri, 14 Nov 2025 20:26:43 +0530
From: Ram Kumar Dwivedi <ram.dwivedi@....qualcomm.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, James.Bottomley@...senPartnership.com,
        martin.petersen@...cle.com, ram.dwivedi@....qualcomm.com,
        quic_ahari@...cinc.com
Cc: linux-arm-msm@...r.kernel.org, linux-scsi@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH V1 0/3] ufs: ufs-qcom: Add support firmware managed platforms

From: Ram Kumar Dwivedi <quic_rdwivedi@...cinc.com>

On Qualcomm automotive SoC SA8255P, platform resource like clocks,
interconnect, resets, regulators and PHY are configured remotely by
firmware.

Logical power domain is used to abstract these resources in firmware
and SCMI power protocol is used to request resource operations by using
runtime PM framework APIs such as pm_runtime_get/put_sync to invoke
power_on/_off calls from kernel respectively.

Ram Kumar Dwivedi (3):
  MAINTAINERS: broaden UFS Qualcomm binding file pattern
  dt-bindings: ufs: Document bindings for SA8255P UFS Host Controller
  ufs: ufs-qcom: Add support for firmware-managed resource abstraction

 .../bindings/ufs/qcom,sa8255p-ufshc.yaml      |  63 +++++++
 MAINTAINERS                                   |   2 +-
 drivers/ufs/host/ufs-qcom.c                   | 161 +++++++++++++++++-
 drivers/ufs/host/ufs-qcom.h                   |   1 +
 4 files changed, 225 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/ufs/qcom,sa8255p-ufshc.yaml

-- 
2.34.1