linux.git/Documentation/devicetree/bindings/ufs, branch master

scsi: ufs: rockchip,rk3576-ufshc: dt-bindings: Add new mphy reset item

2026-03-16T01:48:14+00:00

Add the mphy reset property to the devicetree bindings for the Rockchip
RK3576 UFS host controller. The mphy reset signal is used to reset the
physical adapter. Resetting other components while leaving the mphy unreset
may occasionally prevent the UFS controller from successfully linking up
with the device.

This addresses an intermittent hardware bug where the UFS link fails to
establish under specific timing conditions with certain chips. While
difficult to reproduce initially, this issue was consistently observed in
downstream testing and requires explicit mphy reset control for full
stability.

Although this change increases the maxItems for resets and adds a new entry
(which technically alters the binding ABI), it does not break compatibility
for existing Linux systems. The driver uses
devm_reset_control_array_get_exclusive() to manage resets, allowing it to
function correctly with both older Device Trees (without the mphy entry)
and newer ones.

Fixes: d90e92023771 ("scsi: ufs: dt-bindings: Document Rockchip UFS host controller")
Signed-off-by: Shawn Lin 
Reviewed-by: Krzysztof Kozlowski 
Link: https://patch.msgid.link/1773368467-109650-1-git-send-email-shawn.lin@rock-chips.com
Signed-off-by: Martin K. Petersen

scsi: ufs: qcom: dt-bindings: Document the Eliza UFS controller

2026-03-16T01:45:06+00:00

Document the UFS Controller on the Eliza Platform.

The IP block version here is 6.0.0, exactly the same as on SM8650.

While MCQ reg range is also available on the already documented platforms,
enforce only starting with Eliza.

Signed-off-by: Abel Vesa 
Reviewed-by: Krzysztof Kozlowski 
Link: https://patch.msgid.link/20260311-eliza-bindings-ufs-v3-1-498b26864182@oss.qualcomm.com
Signed-off-by: Martin K. Petersen

scsi: ufs: qcom,sc7180-ufshc: dt-bindings: Add UFSHC compatible for x1e80100

2026-02-28T22:54:46+00:00

Add UFS Host Controller (UFSHC) compatible for x1e80100 SoC. Use SM8550
as a fallback since x1e80100 is fully compatible with it.

Qualcomm UFSHC is no longer compatible with JEDEC UFS-2.0 binding.
Avoid using the "jedec,ufs-2.0" string in the compatible property.

[mkp: conflict resolution]

Acked-by: Manivannan Sadhasivam 
Reviewed-by: Krzysztof Kozlowski 
Signed-off-by: Pradeep P V K 
Link: https://patch.msgid.link/20260211132926.3716716-2-pradeep.pragallapati@oss.qualcomm.com
Signed-off-by: Martin K. Petersen

scsi: ufs: qcom,sc7180-ufshc: dt-bindings: Document the Milos UFS Controller

2026-02-28T22:53:26+00:00

Document the UFS Controller on the Milos SoC.

Reviewed-by: Krzysztof Kozlowski 
Signed-off-by: Luca Weiss 
Link: https://patch.msgid.link/20260112-milos-ufs-v2-2-d3ce4f61f030@fairphone.com
Signed-off-by: Martin K. Petersen

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2026-02-12T23:43:02+00:00

Pull SCSI updates from James Bottomley:
 "Usual driver updates (qla2xxx, mpi3mr, mpt3sas, ufs) plus assorted
  cleanups and fixes.

  The biggest core change is the massive code motion in the sd driver to
  remove forward declarations and the most significant change is to
  enumify the queuecommand return"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (78 commits)
  scsi: csiostor: Fix dereference of null pointer rn
  scsi: buslogic: Reduce stack usage
  scsi: ufs: host: mediatek: Require CONFIG_PM
  scsi: ufs: mediatek: Fix page faults in ufs_mtk_clk_scale() trace event
  scsi: smartpqi: Fix memory leak in pqi_report_phys_luns()
  scsi: mpi3mr: Make driver probing asynchronous
  scsi: ufs: core: Flush exception handling work when RPM level is zero
  scsi: efct: Use IRQF_ONESHOT and default primary handler
  scsi: ufs: core: Use a host-wide tagset in SDB mode
  scsi: qla2xxx: target: Add WQ_PERCPU to alloc_workqueue() users
  scsi: qla2xxx: Add WQ_PERCPU to alloc_workqueue() users
  scsi: qla4xxx: Add WQ_PERCPU to alloc_workqueue() users
  scsi: mpi3mr: Driver version update to 8.17.0.3.50
  scsi: mpi3mr: Fixed the W=1 compilation warning
  scsi: mpi3mr: Record and report controller firmware faults
  scsi: mpi3mr: Update MPI Headers to revision 39
  scsi: mpi3mr: Use negotiated link rate from DevicePage0
  scsi: mpi3mr: Avoid redundant diag-fault resets
  scsi: mpi3mr: Rename log data save helper to reflect threaded/BH context
  scsi: mpi3mr: Add module parameter to control threaded IRQ polling
  ...

scsi: ufs: dt-bindings: Document bindings for SA8255P UFS Host Controller

2026-01-24T03:04:32+00:00

Document the device tree bindings for UFS host controller on Qualcomm
SA8255P platform which integrates firmware-managed resources.

The platform firmware implements the SCMI server and manages resources
such as the PHY, clocks, regulators and resets via the SCMI power
protocol. As a result, the OS-visible DT only describes the controller’s
MMIO, interrupt, IOMMU and power-domain interfaces.

The generic "qcom,ufshc" and "jedec,ufs-2.0" compatible strings are
removed from the binding, since this firmware managed design won't be
compatible with the drivers doing full resource management.

Co-developed-by: Anjana Hari 
Signed-off-by: Anjana Hari 
Signed-off-by: Ram Kumar Dwivedi 
Reviewed-by: Krzysztof Kozlowski 
Acked-by: Manivannan Sadhasivam 
Link: https://patch.msgid.link/20260113080046.284089-3-ram.dwivedi@oss.qualcomm.com
Signed-off-by: Martin K. Petersen

scsi: ufs: dt-bindings: Fix several grammar errors

2026-01-04T20:09:34+00:00

Fix several grammar errors.

Signed-off-by: Zhaoming Luo 
Reviewed-by: Rob Herring (Arm) 
Link: https://patch.msgid.link/20251217-fix-minor-grammar-err-v3-1-9be220cdd56a@posteo.com
Signed-off-by: Martin K. Petersen

Merge branch 6.18/scsi-fixes into 6.19/scsi-staging

2025-11-20T03:59:25+00:00

Pull in fixes branch to resolve UFS merge conflict.

Signed-off-by: Martin K. Petersen

scsi: ufs: dt-bindings: mediatek,ufs: Update maintainer information in mediatek,ufs.yaml

2025-11-03T02:51:22+00:00

Replace Stanley Chu with me and Chaotian in the maintainers field since
Stanley's email address is no longer active.

Signed-off-by: Peter Wang 
Acked-by: Conor Dooley 
Link: https://patch.msgid.link/20251031122008.1517549-1-peter.wang@mediatek.com
Signed-off-by: Martin K. Petersen

scsi: ufs: dt-bindings: qcom: Drop redundant "reg" constraints

2025-10-30T03:23:01+00:00

The "reg" in top-level has maxItems:2, thus repeating this in "if:then:"
blocks is redundant.  Similarly number of items cannot be less than 1.

Signed-off-by: Krzysztof Kozlowski 
Acked-by: Rob Herring (Arm) 
Link: https://patch.msgid.link/20251027113107.75835-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Martin K. Petersen