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

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

2026-08-21T18:23:20+00:00

Pull SCSI updates from James Bottomley:
 "One new driver: leapraid (similar to mpi3mr but OK'd by Broadcom). The
  usual suspects for driver updates (ufs, qla2xxx, smartpqi, zfcp, fnic,
  ibmvfc) plus a few small core updates: a fix for an uninitialized sg
  list pad bytes plus the removal of the dma mask check for max sectors.

  The big update in the sd driver is mostly code refactoring for obscure
  error leg handling"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (195 commits)
  scsi: fnic: Fix built-in NVMe/FC build
  scsi: fnic: Fix invalid comparison for error
  scsi: core: Fill in DMA padding bytes in scsi_alloc_sgtables()
  scsi: zfcp: Enable CONTEXT_ANALYSIS
  scsi: zfcp: Add __must_hold() attribute to zfcp_qdio_sbal_get()
  scsi: fnic: Use GFP_ATOMIC for VLAN alloc under spinlock
  scsi: storvsc: Support manual scans for all Hyper-V targets
  scsi: sd: Fix sd_done() sense handling condition
  scsi: sd: Fix special_vec mempool leak when scsi_alloc_sgtables() fails
  scsi: sd: Fix error handling in sd_probe() after large pool creation failure
  scsi: leapraid: Add driver documentation
  scsi: leapraid: Add new SCSI driver
  scsi: ufs: Add support for the aggregated read query opcode
  scsi: ufs: Use unsigned types for the BSG query
  scsi: ibmvfc: Fix spelling mistake "Deleteing" -> "Deleting"
  scsi: qla2xxx: Update version to 12.00.00.2607b2
  scsi: qla2xxx: Bound i2c->length in I2C bsg handlers
  scsi: qla2xxx: Zero SFP DMA buffer in FRU/I2C bsg handlers
  scsi: qla2xxx: Validate BSG request_len before reading vendor_cmd[]
  scsi: qla2xxx: Zero-init bsg stack buffers to avoid info leak
  ...

scsi: ufs: dt-bindings: Document the Maili UFS Controller

2026-07-26T22:04:16+00:00

Document the UFS Controller on Maili SoC.

Signed-off-by: Nitin Rawat 
Reviewed-by: Krzysztof Kozlowski 
Reviewed-by: Manivannan Sadhasivam 
Link: https://patch.msgid.link/20260719195833.136543-1-nitin.rawat@oss.qualcomm.com
Signed-off-by: Martin K. Petersen

scsi: ufs: dt-bindings: Add missing mcq reg for qcom,sa8255p-ufshc

2026-07-26T19:35:33+00:00

Qualcomm UFS controller found on SoCs SA8255P/SA8797P has a MCQ I/O address
space. It should be defined in the bindings even though Linux driver
currently doesn't utilize it. Fix the binding before it gets adopted by
DTS.

Fixes: e2725ed2a7fb ("scsi: ufs: dt-bindings: Document bindings for SA8255P UFS Host Controller")
Cc: stable@vger.kernel.org
Signed-off-by: Shawn Guo 
Acked-by: Krzysztof Kozlowski 
Link: https://patch.msgid.link/20260720023552.2667237-1-shengchao.guo@oss.qualcomm.com
Signed-off-by: Martin K. Petersen

scsi: ufs: dt-bindings: Document static TX Equalization settings properties

2026-07-12T17:40:27+00:00

UFS v5.0/UFSHCI v5.0 adds HS-G6 support (46.6 Gbps/lane) via UniPro v3.0
and M-PHY v6.0. These specs define TX Equalization for all High-Speed Gears
(not only HS-G6) to compensate channel loss and improve signal integrity at
high speed.

For HS-G6, M-PHY uses PAM4 1b1b line coding. Pre-Coding may also be
required depending on channel characteristics.

Document vendor-neutral properties in ufs-common.yaml:

 - txeq-preshoot-g[1-6]

 - txeq-deemphasis-g[1-6]

 - tx-precode-enable-g6

Values are per-lane Host/Device tuples (2 values for x1, 4 values for
x2). PreShoot/DeEmphasis range from 0..7, and Precode is 0/1.

These are board-specific signal-integrity tuning values. They depend on
channel SI/PHY characterization and validation (host PHY, device PHY,
package, and board routing), and are determined by HW/PHY designers.

Although UFSHCI v5.0 supports TX Equalization Training via UniPro v3.0,
which allows host software to determine optimal TX Equalization at
runtime, static board-specific TX Equalization settings in the Device

Tree are still necessary because:

 - TX Equalization Training is not supported for HS-G3 and below

 - TX Equalization Training is disabled on some platforms

Reviewed-by: Krzysztof Kozlowski 
Reviewed-by: Manivannan Sadhasivam 
Reviewed-by: Peter Wang 
Signed-off-by: Can Guo 
Link: https://patch.msgid.link/20260616113348.1168248-2-can.guo@oss.qualcomm.com
Signed-off-by: Martin K. Petersen

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

2026-06-08T20:34:32+00:00

Document the UFS Controller on the Hawi Platform.

Reviewed-by: Manivannan Sadhasivam 
Signed-off-by: Palash Kambar 
Reviewed-by: Krzysztof Kozlowski 
Link: https://patch.msgid.link/20260526090956.2340262-3-palash.kambar@oss.qualcomm.com
Signed-off-by: Martin K. Petersen

scsi: ufs: exynos: dt-bindings: Add ExynosAutov920 compatible string

2026-04-30T16:06:10+00:00

Add samsung,exynosautov920-ufs compatible for ExynosAutov920 SoC.

Acked-by: Krzysztof Kozlowski 
Signed-off-by: Sowon Na 
Signed-off-by: Alim Akhtar 
Reviewed-by: Alim Akhtar 
Link: https://patch.msgid.link/20260417121452.827054-3-alim.akhtar@samsung.com
Signed-off-by: Martin K. Petersen

scsi: ufs: dt-bindings: Add compatible for SA8797P UFS Host Controller

2026-04-30T15:59:43+00:00

SA8797P is the automotive variant of the Nord SoC. Like SA8255P, its
platform firmware implements an SCMI server that manages UFS 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, making SA8255P the
appropriate fallback compatible.

Signed-off-by: Deepti Jaggi 
Reviewed-by: Manivannan Sadhasivam 
Signed-off-by: Shawn Guo 
Reviewed-by: Krzysztof Kozlowski 
Link: https://patch.msgid.link/20260427013115.231731-3-shengchao.guo@oss.qualcomm.com
Signed-off-by: Martin K. Petersen

scsi: ufs: dt-bindings: Add compatible for Nord UFS Host Controller

2026-04-30T15:59:43+00:00

Document UFS Host Controller on Qualcomm Nord SoC. Like the Eliza SoC,
Nord has a multi-queue command (MCQ) register range in addition to the
standard one, making both reg entries required.

Reviewed-by: Krzysztof Kozlowski 
Reviewed-by: Manivannan Sadhasivam 
Signed-off-by: Shawn Guo 
Link: https://patch.msgid.link/20260427013115.231731-2-shengchao.guo@oss.qualcomm.com
Signed-off-by: Martin K. Petersen

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