Pull devicetree updates from Rob Herring: - A bunch of improvements in dt-check-style. Fix various bindings based on these additional checks. - Convert hisilicon,hix5hd2-ir, hisilicon,hi6220-ade, hisilicon,hi6220-dsi, hisilicon,hip05-sas-v1, MediaTek RT5650 codecs, mediatek,g3dsys, mediatek,mt2701-scpsys, ti,omap-mpu, and ti,omap-ocp2scp to DT schema format - Add schemas for ST STM32MP2 DWC3 xHCI USB, ST STM32MP25 USB2-FEMTO PHY, spacemit,k1-gpu and spacemit,k3-gpu, HiSilicon local bus, HiSilicon HIP05 CPLD, SDMC DM2016, and QCom SM7250 and Kuno PDC - Various binding updates to fix schema warnings in .dts files - Drop obsolete .txt bindings for STM32(MP1) RCC, VExpress hwmon and regulator, and mailbox.txt - Remove the unused of_overlay_remove_all() function - Fixes for of_check_msi_parent() - Add "i2c-parent" tracking to fw_devlink * tag 'devicetree-for-7.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (72 commits) dt-bindings: usb: dwc3: Document ST STM32MP2 DWC3 xHCI USB controller dt-bindings: iommu: Describe MT8195 infra IRQs dt-bindings: clock: mediatek: Add MT8516 fallbacks dt-bindings: media: Convert hisilicon,hix5hd2-ir to DT schema dt-bindings: display: Convert hisilicon,hi6220-ade to DT schema dt-bindings: display: Convert hisilicon,hi6220-dsi to DT schema dt-bindings: phy: Document ST STM32MP25 USB2-FEMTO PHY of: overlay: remove unused of_overlay_remove_all() dt-bindings: power: Convert mediatek,mt2701-scpsys to DT schema dt-bindings: bus: Add HiSilicon local bus dt-bindings: gpu: img,powervr-rogue: add spacemit,k1-gpu and spacemit,k3-gpu dt-bindings: interrupt-controller: qcom,pdc: Document SM7250 PDC dt-bindings: vendor-prefixes: add Ambarella dt-bindings: reset: Drop obsolete STM32(MP1) RCC bindings dt-bindings: arm: keystone: ti,sci: Correct reg and mboxes constraints dt-bindings: ASoC: Convert MediaTek RT5650 codecs bindings to DT schema dt-bindings: scsi: Convert hisilicon,hip05-sas-v1 to DT schema of/irq: Stop the MSI walk at the first msi-parent of/irq: Fix device node refcount leak in of_check_msi_parent() dt-bindings: display: faraday,tve200: Use a level-high interrupt ...
Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com> says: This series adds audio support for the Qualcomm Nord Ride and RRD boards and includes the required machine driver, device tree binding updates, and codec improvements needed for the board's external audio codec configuration. Nord Ride uses a PCM1681 DAC for playback and an ADAU1979 ADC for capture. Compared to other SC8280XP based platforms, Nord Ride requires board-specific DAI format and codec clock configuration to support the external PCM1681 DAC and ADAU1979 ADC. Link: https://patch.msgid.link/20261009-nord-asoc-driver-support-v3-v3-0-0c1897f21ccf@oss.qualcomm.com
Document the bindings for the Qualcomm Nord sound card. The bindings are the same as for other newer Qualcomm ADSP sound cards, thus keep them in existing qcom,sm8250.yaml file. Acked-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com> Link: https://patch.msgid.link/20261009-nord-asoc-driver-support-v3-v3-6-0c1897f21ccf@oss.qualcomm.com Signed-off-by: Mark Brown <broonie@kernel.org>
The PCM1681 takes a 5V analog supply on VCC1 and VCC2 and a 3.3V digital supply on VDD. On boards where these rails are switchable, the codec has to know about them to be able to power the DAC up and down, which needs a way to describe the connections in Device Tree. Document the VCC1, VCC2 and VDD supply properties. Signed-off-by: Shawn Guo <shengchao.guo@oss.qualcomm.com> Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com> Link: https://patch.msgid.link/20261009-nord-asoc-driver-support-v3-v3-4-0c1897f21ccf@oss.qualcomm.com Signed-off-by: Mark Brown <broonie@kernel.org>
The PCM1681 can use an external system clock supplied on the SCK input pin. Platforms that provide this clock need a way to describe the clock connection in Device Tree. Document the optional 'clocks' and 'clock-names' properties and define the clock name as "sck" to represent the external system clock source. This allows boards using an externally supplied SCK clock to accurately describe the hardware configuration. Reviewed-by: Shawn Guo <shengchao.guo@oss.qualcomm.com> Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com> Link: https://patch.msgid.link/20261009-nord-asoc-driver-support-v3-v3-1-0c1897f21ccf@oss.qualcomm.com Signed-off-by: Mark Brown <broonie@kernel.org>
Document the bindings for the sound card on motorola-dubai which uses the Elite DSP architecture. Signed-off-by: Val Packett <val@packett.cool> Link: https://patch.msgid.link/20261016073157.611956-4-val@packett.cool Signed-off-by: Mark Brown <broonie@kernel.org>
Harendra Gautam <harendra.gautam@oss.qualcomm.com> says:
This series introduces the Qualcomm Audio Interface (QAIF) driver for
the Shikra audio platform.
Hardware IP Overview
====================
QAIF (Qualcomm Audio Interface) is a fully configurable DMA-based audio
subsystem used to transmit and receive audio data over serial audio
interfaces (PCM, TDM, MI2S) and to provide a DMA interface for internal
codec connections. It manages two independent data paths:
AIF (Audio Interface): multiple multi-lane Unified Audio Interfaces,
each supporting up to 8 independent data lanes. Each lane is individually
configurable as TX (output/speaker) or RX (input/mic). All lanes of an
interface share a single bit clock and frame sync. Supported modes are
PCM (short/long sync), TDM, and MI2S (stereo/mono). Per-interface
configuration includes sync source (master/slave), sync mode, sync delay,
sync inversion, slot width (8/16/24/32-bit), sample width, active slot
masks (up to 32 slots), bits-per-lane frame size, lane enable/direction
masks, loopback, output-enable control, and full-cycle path support for
long chip-to-chip connections.
CIF (Codec Interface): multiple RDDMA (playback) and WRDMA (capture)
channels connecting to an internal codec over a parallel bus. Each channel
supports active-channel enable mask (up to 16 channels), frame-sync
selection, frame-sync delay, frame-sync output gating, dynamic clock
gating, and 16-bit packing/unpacking.
Note on RX/TX naming convention: in QAIF, TX refers to the output
(speaker/playback) direction and RX refers to the input (mic/capture)
direction. This applies to both AIF lane directions and CIF slot/mask
properties.
DMA Engine: RDDMA fetches audio from DDR/TCM/LPM into a shared SRAM
latency buffer (SHRAM) and drains it to the interface. WRDMA collects
data from the interface into SHRAM and writes it to memory. Each DMA
owns a private SHRAM region defined by start address and length registers.
Burst sizes of 1/2/4/8/16 beats (64-bit) are supported with up to 4
outstanding transactions per DMA. Two QSB master ports (QXM0 for TCM,
QXM1 for DDR/LPM) provide the memory interface.
Execution Environments (EE): Resources (DMAs, audio interfaces,
interface groups) are partitioned among up to 5 EEs via map registers.
Each EE owns a set of DMAs, audio interfaces, and interface groups, and
receives its own independent interrupt output. The interrupt hierarchy
has a two-level structure: a summary register identifies the event class
(DMA period, underflow/overflow, error response, audio interface
underflow/overflow, group done, rate detector, VFR), and per-resource
status registers identify the specific channel.
Interface Grouping (Bonding): Multiple AIF and CIF interfaces can be
bonded into a group to start synchronously and align their DMA period
interrupts within half a frame duration using the RDDMA padding feature.
Up to 6 groups are supported.
Rate Detector: Two rate detector blocks measure the frequency of
incoming frame sync or word select signals and generate interrupts on
rate change, undetected rate, or sync timeout.
Block Diagram
=============
System Memory (DDR / LPM / TCM)
+---------------------------------+
| Circular Buffers (ping-pong) |
+----------+----------+-----------+
| ^
64-bit AXI 64-bit AXI
| |
+----------v----------+-----------+
| QSB Master Ports |
| +----------+ +----------+ |
| | QXM0 | | QXM1 | |
| +----+-----+ +-----+----+ |
+-------|--------------|----------+
| |
+-------v--------------v----------+
| Shared RAM (SHRAM) |
| +------------+ +------------+ |
| | QXM0 Read | | QXM0 Write | |
| | SHRAM | | SHRAM | |
| +------------+ +------------+ |
| +------------+ +------------+ |
| | QXM1 Read | | QXM1 Write | |
| | SHRAM | | SHRAM | |
| +------------+ +------------+ |
+---+--------+--------+-------+---+
| | | |
+---v--+ +--v---+ +--v---+ +-v----+
|RDDMA | |RDDMA | |WRDMA | |WRDMA |
| AIF | | CIF | | AIF | | CIF |
|[0..n]| |[0..n]| |[0..n]| |[0..n]|
+--+---+ +--+---+ +--+---+ +-+----+
| | ^ ^
| TX | TX | RX | RX
v v | |
+--+--------------------+ +----+----------+
| Unified Audio Intf | | Codec DMA |
| (AIF 0..12) | | Interface |
| | | (CIF) |
| AUD_INTFa block: | | |
| - Serializer (TX) | | RDDMA: DDR -> |
| - De-serializer (RX) | | internal |
| - Sync gen/detect | | codec |
| - Up to 8 data lanes | | WRDMA: codec |
| - PCM / TDM / MI2S | | -> DDR |
| - Near Pad Logic | | Up to 16 ch |
+--+--------------------+ +----+----------+
| Lane 0..7 (TX/RX) | Parallel bus
| Bit clk + Frame sync | + Frame sync
v v
+--+--------+ +------+------+
| External | | Internal |
| Serial | | Digital |
| Peripherals| | Codec |
| (PCM/TDM/ | | (Bolero/ |
| MI2S) | | WCD) |
+-----------+ +-------------+
Software Design
===============
The driver follows the standard ALSA SoC split:
qaif-cpu.c: CPU DAI component. Manages clocks, implements DAI ops
(startup/shutdown/hw_params/trigger) for both AIF and CIF
paths using direct regmap_update_bits() calls with address macros from
qaif-reg.h, registers an of_xlate_dai_name callback so that sound-dai
references using non-sequential DAI IDs resolve correctly, parses
per-interface AIF configuration from DT child nodes, and provides
runtime PM suspend/resume via pm_runtime_force_suspend/resume for
power collapse. AIF child nodes use standard properties (dai-format,
dai-tdm-slot-*, qcom,qaif-aif-lane-map) without a compatible string;
the protocol is identified by dai-format and set_fmt() is called by
the machine driver.
qaif-platform.c: PCM platform component. Handles DMA buffer allocation
(dma_alloc_pages()), PCM ops (open/close/hw_params/hw_free/prepare/trigger/
pointer/mmap/copy), and table-driven two-level IRQ dispatch with
period-elapsed notification.
qaif-shikra.c: Shikra SoC-specific variant descriptor. Provides
register base addresses, DMA channel counts, SHRAM geometry, clock
names and the DAI driver array. This abstraction keeps the core driver
portable across future QAIF integrations.
qaif.h / qaif-reg.h: Shared data structures, constants and the complete
MMIO register address map consumed by both the CPU and platform drivers.
soc-core.c: This series adds snd_soc_of_xlate_dai_name() as a generic
ASoC helper that resolves a sound-dai phandle argument to a DAI name by
searching the component DAI list by ID. Both lpass-cpu.c and qaif-cpu.c
assign it directly as .of_xlate_dai_name, removing their private
implementations.
The series is split by functionality to aid review -- register map and
data structures first, then CPU DAI ops with regmap and DT parsing, the
of_xlate helper, PCM ops, IRQ handling and finally the Shikra variant
glue.
Link: https://patch.msgid.link/20261013-b4-qaif-shikra-audio-v9-0-f3022e28f2fd@oss.qualcomm.com
Add the Devicetree binding for the Qualcomm Audio Interface (QAIF) CPU DAI controller used on the Shikra audio platform. QAIF routes audio between system memory, external PCM/TDM/MI2S serial interfaces and the internal Bolero/WCD codec. Platform Devicetree files need a binding to describe the controller resources, DAI cells and per- interface AIF configuration, and named constants to avoid raw numeric IDs in sound-dai references and child-node reg values. Describe the MMIO region, interrupt, clocks, DMA IOMMU mapping and aif-interface child nodes required by the controller. Signed-off-by: Harendra Gautam <harendra.gautam@oss.qualcomm.com> Reviewed-by: Ajay Kumar Nandam <ajay.nandam@oss.qualcomm.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20261013-b4-qaif-shikra-audio-v9-1-f3022e28f2fd@oss.qualcomm.com Signed-off-by: Mark Brown <broonie@kernel.org>
Svyatoslav Ryhel <clamor95@gmail.com> says: Add Wolfson Microelectronics WM8994 codec support to the Tegra ASoC machine driver. The WM8994 codec is found on devices like LG Optimus 2X (P990/star) and Samsung Captivate Glide (SGH-i927). Link: https://patch.msgid.link/20261014120148.126160-1-clamor95@gmail.com
Add dt-binding for WM8994 CODEC. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Link: https://patch.msgid.link/20261014120148.126160-2-clamor95@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>