Commit Graph

863 Commits

Author SHA1 Message Date
Linus Torvalds
c6cf4441a3 Devicetree updates for v7.3:
- Add a DT maintainer profile document
 
 - Various dt-check-style improvements
 
 - Add a devres managed reserved memory region init function
 
 - Print node name on any skipped reserved memory regions
 
 - Correctly handle optional argument in of_parse_phandle_with_args_map()
 
 - Convert ti,keystone-reset, ti,da850-vpif, TI L4 interconnect, TI
   SmartReflex, microchip,pic32mzda-dmt, microchip,pic32mzda-wdt, TI
   DA8XX MSTPRI bus, and Xen VM bindings to DT schema format
 
 - Add bindings for StarFive JHB100 plic, Allwinner A733 NMI controller,
   MediaTek MT8173 GPU, QCom Shikra, Eliza, and Maili cpu-bwmon, and QCom
   Shikra SCM firmware
 
 - A couple of syntax fixes found using PoC Rust implementation of
   dtschema tools
 
 - Clean-ups for typos, brackets, incorrect "::" usages, and
   white-space style
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Merge tag 'devicetree-for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:

 - Add a DT maintainer profile document

 - Various dt-check-style improvements

 - Add a devres managed reserved memory region init function

 - Print node name on any skipped reserved memory regions

 - Correctly handle optional argument in
   of_parse_phandle_with_args_map()

 - Convert ti,keystone-reset, ti,da850-vpif, TI L4 interconnect, TI
   SmartReflex, microchip,pic32mzda-dmt, microchip,pic32mzda-wdt, TI
   DA8XX MSTPRI bus, and Xen VM bindings to DT schema format

 - Add bindings for StarFive JHB100 plic, Allwinner A733 NMI controller,
   MediaTek MT8173 GPU, QCom Shikra, Eliza, and Maili cpu-bwmon, and
   QCom Shikra SCM firmware

 - A couple of syntax fixes found using PoC Rust implementation of
   dtschema tools

 - Clean-ups for typos, brackets, incorrect "::" usages, and
   white-space style

* tag 'devicetree-for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (40 commits)
  dt-bindings: interconnect: qcom-bwmon: Add Maili cpu-bwmon compatible
  dtc: dt-check-style: Simplify setting depth of DtsLine
  dtc: dt-check-style: Add missing /dts-v1/ to few test cases
  dt-bindings: power: reset: ti,keystone-reset: Convert to DT schema
  media: dt-bindings: ti,da850-vpif: Convert to dt-schema
  dt-bindings: devfreq: samsung,exynos-ppmu: Use standard regex syntax
  dt-bindings: interrupt-controller: mediatek,mt6577-sysirq: Drop invalid JSON pointer
  dt-bindings: arm: omap: Convert L4 interconnect to DT schema
  dt-bindings: power: Convert TI SmartReflex to DT schema
  of: reserved_mem: Introduce devres-managed initialization function
  dt-bindings: interrupt-controller: Add StarFive JHB100 plic
  dt-bindings: irq: sun7i-nmi: Document the Allwinner A733 NMI controller
  dt-bindings: Correct white-space style
  dt-bindings: fix typos and brackets
  docs: dt: submitting-patches: Mention expectation about dt-check-style
  docs: dt: maintainer: Add Devicetree and OF maintainer profile document
  docs: dt: writing-schema: Extend expectations about example part of binding
  dt-bindings: gpu: powervr-rogue: Add MediaTek MT8173 GPU
  of: base: Handle optional argument in of_parse_phandle_with_args_map()
  dt-bindings: update Sudeep Holla's email address
  ...
2026-08-19 10:32:34 -07:00
Linus Torvalds
abea5c3493 i2c for v7.3
Core and helpers:
 - support bus recovery with single-ended GPIOs
 - acpi: clean up resource handling
 - acpi: force ELAN1300 to 100 kHz
 - algo-bit: allow consumers to skip the optional bus test
 
 Drivers:
 - use generic bus frequency definitions in nomadik,
   octeon-core, microchip-corei2c, k1, davinci and pnx
 - i2c-gpio: support multiple buses sharing the same SCL line
 - qup: propagate clock enable failures
 - spacemit: configure SCL timing and clean up clock handling
 - amd-asf: guard against oversized firmware length
 
 qcom-geni:
 - add tracepoints for bus setup, interrupts and errors
 - use dedicated completion events for abort and reset
 - distinguish address and data NACK handling
 - cancel transfers before falling back to abort
 - simplify runtime PM and resource management
 - refactor resource and serial engine initialization
 
 DT bindings:
 - convert Altera bindings to DT schema
 - convert Axxia bindings to DT schema
 
 New support:
 - R-Car Gen5 and R-Car X5H
 - Axiado AX3005
 - Qualcomm Nord SA8797P
 - Qualcomm SA8255p
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Merge tag 'i2c-7.3-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux

Pull i2c updates from Andi Shyti:
 "The main changes are support for shared SCL lines in i2c-gpio, a
  larger qcom-geni update covering tracing and transfer recovery and
  support for R-Car Gen5.

  The rest is mostly smaller driver, core and DT binding updates.

  Core and helpers:
   - support bus recovery with single-ended GPIOs
   - acpi: clean up resource handling
   - acpi: force ELAN1300 to 100 kHz
   - algo-bit: allow consumers to skip the optional bus test

  Drivers:
   - use generic bus frequency definitions in nomadik, octeon-core,
     microchip-corei2c, k1, davinci and pnx
   - i2c-gpio: support multiple buses sharing the same SCL line
   - qup: propagate clock enable failures
   - spacemit: configure SCL timing and clean up clock handling
   - amd-asf: guard against oversized firmware length

  qcom-geni:
   - add tracepoints for bus setup, interrupts and errors
   - use dedicated completion events for abort and reset
   - distinguish address and data NACK handling
   - cancel transfers before falling back to abort
   - simplify runtime PM and resource management
   - refactor resource and serial engine initialization

  DT bindings:
   - convert Altera bindings to DT schema
   - convert Axxia bindings to DT schema

  New support:
   - R-Car Gen5 and R-Car X5H
   - Axiado AX3005
   - Qualcomm Nord SA8797P
   - Qualcomm SA8255p"

* tag 'i2c-7.3-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux: (33 commits)
  i2c: core: support recovery for single-ended GPIOs
  i2c: rcar: add R-Car Gen5 support
  dt-bindings: i2c: rcar-i2c: Document R-Car X5H support
  i2c: i2c-gpio: Enhance driver for buses with shared SCL
  i2c: algo: bit: Allow to skip bit test
  i2c: qcom-geni: Add trace events for Qualcomm GENI I2C driver
  i2c: qcom-geni: trace: Add trace events for Qualcomm GENI I2C
  i2c: qup: Propagate clock enable failures
  i2c: qcom-geni: distinguish address-phase and data-phase NACK
  i2c: qcom-geni: use dedicated completions for abort and reset events
  i2c: qcom-geni: use cancel command before abort on transfer timeout
  dt-bindings: i2c: cdns: add Axiado AX3005 I2C variant
  i2c: qcom-geni: Use devm_pm_runtime_enable() for PM management
  dt-bindings: i2c: qcom,sa8255p-geni-i2c: Add compatible for Nord SA8797P
  i2c: nomadik: Use generic definitions for bus frequencies
  i2c: octeon-core: Use generic definitions for bus frequencies
  i2c: microchip-corei2c: Use generic definitions for bus frequencies
  i2c: k1: Use generic definitions for bus frequencies
  i2c: davinci: Use generic definitions for bus frequencies
  i2c: pnx: Use generic definitions for bus frequencies
  ...
2026-08-19 09:23:13 -07:00
Krzysztof Kozlowski
5665556b5b dt-bindings: Correct white-space style
Correct a few white-space issues, like double space after '=' or before
bracket '{' characters, which will be flagged by dt-check-style.  No
functional changes.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Acked-by: Jeff Johnson <jjohnson@kernel.org> # qcom,ath10k.yaml
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Uwe Kleine-König <ukleinek@kernel.org> # for Documentation/devicetree/bindings/pwm
Acked-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Acked-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20260801195613.235430-2-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2026-08-07 09:38:48 -05:00
Janne Grunau
c1b7bfab96 dt-bindings: i2c: apple,i2c: Add t6030 and t6031 compatibles
The i2c block on Apple silicon M3 Pro, Max and Ultra SoCs are compatible
with the t8103 (M1) one. Add "apple,t6030-i2c" for M3 Pro and
"apple,t6031-i2c" for M3 Max and Ultra as per-SoC compatibles.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Janne Grunau <j@jannau.net>
Acked-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Sven Peter <sven@kernel.org>
2026-08-01 20:47:40 +02:00
Minh Le
a5c811aa0a
dt-bindings: i2c: rcar-i2c: Document R-Car X5H support
Document support for rcar-i2c on R8A78000 (X5H) SoCs.

Signed-off-by: Minh Le <minh.le.aj@renesas.com>
[wsa: fixed white space issues, added reset requirement]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260727122546.4232-5-wsa+renesas@sang-engineering.com
2026-07-29 22:29:23 +02:00
Swark Yang
edf133cdee
dt-bindings: i2c: cdns: add Axiado AX3005 I2C variant
Add binding for Axiado AX3005 I2C controller. So far, no changes
are known, so it can fall back to the cdns,i2c-r1p14 compatible.

Signed-off-by: Swark Yang <syang@axiado.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260716-upstream-axiado-ax3005-upstream-v3-3-c429095143ec@axiado.com
2026-07-28 17:07:25 +02:00
Shawn Guo
d3ac4939fb
dt-bindings: i2c: qcom,sa8255p-geni-i2c: Add compatible for Nord SA8797P
Add compatible for Nord SA8797P QUP GENI I2C controller, which is
compatible with SA8255P controller.

Signed-off-by: Shawn Guo <shengchao.guo@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260707095708.3801043-1-shengchao.guo@oss.qualcomm.com
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2026-07-28 10:36:03 +02:00
Praveen Talari
fd359c0272
dt-bindings: i2c: Describe SA8255p
Add DT bindings for the QUP GENI I2C controller on sa8255p platforms.

SA8255p platform abstracts resources such as clocks, interconnect and
GPIO pins configuration in Firmware. SCMI power and perf protocol
are utilized to request resource configurations.

SA8255p platform does not require the Serial Engine (SE) common properties
as the SE firmware is loaded and managed by the TrustZone (TZ) secure
environment.

Co-developed-by: Nikunj Kela <quic_nkela@quicinc.com>
Signed-off-by: Nikunj Kela <quic_nkela@quicinc.com>
Signed-off-by: Praveen Talari <praveen.talari@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260617-enable-i2c-on-sa8255p-v7-1-ad736dbeab57@oss.qualcomm.com
2026-07-01 10:50:25 +02:00
Chaitanya Sabnis
ff434ac49a
dt-bindings: i2c: convert altera i2c to dt-schema
Convert the Altera SoftIP I2C Controller bindings from legacy text
format to modern dt-schema (YAML).

The hardware constraints and properties remain identical. The example
node was updated to use a standard 32-bit address space to clear
compilation warnings.

Signed-off-by: Chaitanya Sabnis <chaitanya.msabnis@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260505053201.5795-1-chaitanya.msabnis@gmail.com
2026-07-01 10:50:24 +02:00
Chaitanya Sabnis
3ca8d1ec9a
dt-bindings: i2c: convert axxia i2c to dt-schema
Convert the LSI Axxia I2C Controller bindings from legacy text
format to modern dt-schema (YAML).

During the conversion, the obsolete `device_type = "i2c"` property
was dropped from the example, as it is deprecated and not utilized
by the driver. The `clock-names` property is enforced as required
matching the driver probe behavior. The example node address was
also updated to a standard 32-bit address.

Signed-off-by: Chaitanya Sabnis <chaitanya.msabnis@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260505100854.5258-1-chaitanya.msabnis@gmail.com
2026-07-01 10:50:23 +02:00
Krzysztof Kozlowski
5de561db57 dt-bindings: Drop incorrect usage of double '::'
There is no use of double colon '::' in YAML. OTOH, the literal style
block, e.g. using '|' treats all characters as content [1] therefore
single use of ':' in descriptions is perfectly fine, whenever '|' is
used.

Cleanup existing code, so the confusing style won't be re-used in new
contributions.

Link: https://yaml.org/spec/1.2.2/#literal-style [1]
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Alim Akhtar <alim.akhtar@samsung.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> # renesas
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Acked-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20260623054842.21831-4-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2026-06-30 08:14:15 -05:00
Linus Torvalds
1dc18801be i2c for v7.2, part 2
- generic cleanups in qcom, qcom-cci and pxa, plus core cleanups
   in algo-bit and atr
 
 Fixes:
 - davinci: clean up cpufreq notifier on probe failure
 - imx-lpi2c: suspend the adapter while hardware is powered down
 - ls2x-v2: return IRQ_HANDLED after servicing error interrupts
 - stm32f7: fix timing calculation accuracy
 
 DT bindings:
 - microchip: permit resets
 - i2c-mux-pinctrl: update maintainer entry
 - i2c-mux-reg: convert bindings to DT schema
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Merge tag 'i2c-7.2-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux

Pull more i2c updates from Andi Shyti:
 "Cleanups:
   - generic cleanups in qcom, qcom-cci and pxa, plus core cleanups in
     algo-bit and atr

  Fixes:
   - davinci: clean up cpufreq notifier on probe failure
   - imx-lpi2c: suspend the adapter while hardware is powered down
   - ls2x-v2: return IRQ_HANDLED after servicing error interrupts
   - stm32f7: fix timing calculation accuracy

  DT bindings:
   - microchip: permit resets
   - i2c-mux-pinctrl: update maintainer entry
   - i2c-mux-reg: convert bindings to DT schema"

* tag 'i2c-7.2-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux:
  i2c: pxa: Use named initializers for the platform_device_id array
  i2c: imx-lpi2c: mark I2C adapter when hardware is powered down
  i2c: stm32f7: truncate clock period instead of rounding it
  dt-bindings: i2c: microchip,corei2c: permit resets
  i2c: qcom: Unify user-visible "Qualcomm" name
  i2c: ls2x-v2: return IRQ_HANDLED after servicing an error
  i2c: atr: annotate i2c_atr_adap_desc->aliases with __counted_by_ptr
  i2c: algo: bit: use str_plural helper in bit_xfer
  dt-bindings: i2c: i2c-mux-pinctrl: change maintainer
  dt-bindings: i2c: convert i2c-mux-reg to DT schema
  i2c: davinci: Unregister cpufreq notifier on probe failure
  i2c: qcom-cci: Remove overcautious disable_irq() calls
  i2c: qcom-cci: Move cci_init() under cci_reset() function
  i2c: qcom-cci: Do not check return value of cci_init()
2026-06-22 09:30:31 -07:00
Linus Torvalds
09fb6892f3 Devicetree updates for v7.2:
DT core:
 - Add support for handling multiple cells in "iommu-map" entries.
 
 - Support only 1 entry in /reserved-memory "reg" entries. Support for
   more than 1 entry has been broken.
 
 - Fix a UAF on alloc_reserved_mem_array() failure
 
 - Make "ibm,phandle" handling logic specific to PPC
 
 - Use memcpy() instead of strcpy() for known length strings
 
 - Ensure __of_find_n_match_cpu_property() handles malformed "reg"
   entries
 
 - Add various checks that expected strings are strings before accessing
   them
 
 - Drop redundant memset() when unflattening DT
 
 DT bindings:
 - Add a DTS style checker. Currently hooked up to dt_binding_check to
   check examples.
 
 - Convert st,nomadik platform, ti,omap-dmm, and ti,irq-crossbar
   bindings to DT schema
 
 - Add Apple System Management Controller hwmon, Qualcomm Hamoa Embedded
   Controller, Qualcomm IPQ6018 PWM controller, fsl,mc1323, Samsung
   SOFEF01-M DDIC panel, Freescale i.MX53 Television Encoder, Samsung S2M
   series PMIC extcon, and MT6365 PMIC AuxADC schemas
 
 - Extend bindings for QCom Maili and Nord PDC, QCom Hali fastrpc,
   qcom,eliza-imem, qcom,oryon-1-5 CPU, and MT6365 Keys
 
 - Consolidate "sram" property definitions
 
 - Fix constraints on "nvmem" properties which only contain phandles and
   no arg cells
 
 - Another pass of fixing "phandle-array" constraints
 
 - Add Gira vendor prefix
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Merge tag 'devicetree-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "DT core:

   - Add support for handling multiple cells in "iommu-map" entries

   - Support only 1 entry in /reserved-memory "reg" entries. Support for
     more than 1 entry has been broken

   - Fix a UAF on alloc_reserved_mem_array() failure

   - Make "ibm,phandle" handling logic specific to PPC

   - Use memcpy() instead of strcpy() for known length strings

   - Ensure __of_find_n_match_cpu_property() handles malformed "reg"
     entries

   - Add various checks that expected strings are strings before
     accessing them

   - Drop redundant memset() when unflattening DT

  DT bindings:

   - Add a DTS style checker. Currently hooked up to dt_binding_check to
     check examples

   - Convert st,nomadik platform, ti,omap-dmm, and ti,irq-crossbar
     bindings to DT schema

   - Add Apple System Management Controller hwmon, Qualcomm Hamoa
     Embedded Controller, Qualcomm IPQ6018 PWM controller, fsl,mc1323,
     Samsung SOFEF01-M DDIC panel, Freescale i.MX53 Television Encoder,
     Samsung S2M series PMIC extcon, and MT6365 PMIC AuxADC schemas

   - Extend bindings for QCom Maili and Nord PDC, QCom Hali fastrpc,
     qcom,eliza-imem, qcom,oryon-1-5 CPU, and MT6365 Keys

   - Consolidate "sram" property definitions

   - Fix constraints on "nvmem" properties which only contain phandles
     and no arg cells

   - Another pass of fixing "phandle-array" constraints

   - Add Gira vendor prefix"

* tag 'devicetree-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (50 commits)
  dt-bindings: interrupt-controller: qcom,pdc: Add Maili compatible string
  dt-bindings: interrupt-controller: ti,irq-crossbar: Convert to DT schema
  dt-bindings: vendor-prefixes: add Gira
  dt-bindings: embedded-controller: Add Qualcomm reference device EC description
  dt-bindings: pwm: add IPQ6018 binding
  dt-bindings: hwmon: Add Apple System Management Controller hwmon schema
  docs: dt: writing-schema: Clarify what is required in a schema
  of: Respect #{iommu,msi}-cells in maps
  of: Factor arguments passed to of_map_id() into a struct
  of: Add convenience wrappers for of_map_id()
  of: reserved_mem: zero total_reserved_mem_cnt if no valid /reserved-memory entry
  of: reserved_mem: handle NULL name in of_reserved_mem_lookup()
  dt-bindings: cache: l2c2x0: Add missing power-domains
  dt-bindings: interrupt-controller: renesas,r9a09g077-icu: Fix reg size in example
  dt-bindings: nvmem: consumer: Make 'nvmem' an array of one-item entries
  drivers/of/overlay: Use memcpy() to copy known length strings
  dt-bindings: add self-test fixtures for style checker
  dt-bindings: wire style checker into dt_binding_check
  scripts/jobserver-exec: propagate child exit status
  dt-bindings: add DTS style checker
  ...
2026-06-17 11:54:57 -07:00
Conor Dooley
1589352a0c
dt-bindings: i2c: microchip,corei2c: permit resets
Both CoreI2C and the hardened versions of it on mpfs and pic64gx have a
reset pin. For the former, usually this is wired to a common fabric
reset not managed by software and for the latter two the platform
firmware takes them out of reset on first-party boards (or those using
modified versions of the vendor firmware), but not all boards may take
this approach. Permit providing a reset in devicetree for Linux, or
other devicetree-consuming software, to use.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260506-bronchial-kitten-e3697fb66ba7@spud
2026-06-17 01:38:47 +02:00
Wolfram Sang
e1e5c40a40
dt-bindings: i2c: i2c-mux-pinctrl: change maintainer
The YAML conversion added me as maintainer but I can't recall being
asked nor do I want to maintain it. Thierry has created the YAML file
and works for the company which contributed the driver.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Thierry Reding <thierry.reding@kernel.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260616060910.1480-2-wsa+renesas@sang-engineering.com
2026-06-16 15:01:25 +02:00
Abdurrahman Hussain
5da26ab52a
dt-bindings: i2c: convert i2c-mux-reg to DT schema
Convert Documentation/devicetree/bindings/i2c/i2c-mux-reg.txt to
the YAML schema so the i2c-mux-reg binding is validated by
dt_binding_check.  Faithful port of the existing properties; no
semantic change.

Signed-off-by: Abdurrahman Hussain <abdurrahman@nexthop.ai>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260608-i2c-mux-reg-base-bus-num-v2-1-776e313f213a@nexthop.ai
2026-06-16 14:40:01 +02:00
Linus Torvalds
2779759c09 i2c for v7.2
Two major cleanup across drivers and core code:
  - use named initializers in device ID tables
  - replace dev_err() with dev_err_probe()
 
 Drivers:
 - at24: use named initializers for arrays of i2c_device_data
 - at91: add MCHP_LAN966X_PCI dependency
 - cadence: add shutdown callback
 - k1: enable by default on SpacemiT
 - mxs: improve documentation
 - qcom-geni: use pm_runtime_force_suspend/resume for system sleep
 - tegra:
    - disable fair arbitration on non-MCTP buses
    - allocate DMA buffers from the correct DMA device
 - designware:
    - handle active target shutdown cleanly
    - add shutdown callbacks for platform and PCI drivers
    - adopt the new PM_RUNTIME_ACQUIRE() helpers
 
 DT bindings:
 - convert davinci bindings to DT schema
 
 Core and muxes:
 - acpi: report missing I2C resources as -ENOENT
 - gpiolib: add gpiod_is_single_ended() helper for I2C GPIO users
 - i2c-mux-reg: add generic firmware node support
 - a set of 10 patches from Johan Hovold fixing adapter
   registration races, cleanup paths and resource management
   issues
 
 New support:
 - DesignWare LECA0003 (ACPI ID)
 - Loongson LS2K0300 I2C controller (new driver)
 - Qualcomm CCI Glymur and Shikra compatibles
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Merge tag 'i2c-7.2-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux

Pull i2c updates from Andi Shyti:
 "This pull request is mostly made of cleanups and small infrastructure
  improvements across the I2C core, drivers and bindings. It also adds
  support for three drivers and a few new compatibles.

  Two major cleanup across drivers and core code:
   - use named initializers in device ID tables
   - replace dev_err() with dev_err_probe()

  Drivers:
   - at24: use named initializers for arrays of i2c_device_data
   - at91: add MCHP_LAN966X_PCI dependency
   - cadence: add shutdown callback
   - k1: enable by default on SpacemiT
   - mxs: improve documentation
   - qcom-geni: use pm_runtime_force_suspend/resume for system sleep
   - tegra:
       - disable fair arbitration on non-MCTP buses
       - allocate DMA buffers from the correct DMA device
   - designware:
       - handle active target shutdown cleanly
       - add shutdown callbacks for platform and PCI drivers
       - adopt the new PM_RUNTIME_ACQUIRE() helpers

  DT bindings:
   - convert davinci bindings to DT schema

  Core and muxes:
   - acpi: report missing I2C resources as -ENOENT
   - gpiolib: add gpiod_is_single_ended() helper for I2C GPIO users
   - i2c-mux-reg: add generic firmware node support
   - a set of 10 patches from Johan Hovold fixing adapter registration
     races, cleanup paths and resource management issues

  New support:
   - DesignWare LECA0003 (ACPI ID)
   - Loongson LS2K0300 I2C controller (new driver)
   - Qualcomm CCI Glymur and Shikra compatibles"

* tag 'i2c-7.2-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux: (46 commits)
  i2c: mxs: add missing kernel-doc for struct mxs_i2c_dev members
  i2c: qcom-geni: Use pm_runtime_force_{suspend,resume} helpers
  dt-bindings: i2c: qcom-cci: Document Glymur compatible
  dt-bindings: i2c: qcom-cci: Document Shikra compatible
  i2c: mux: reg: use device property accessors
  i2c: acpi: Return -ENOENT when no resources found in i2c_acpi_client_count()
  i2c: at91: Add MCHP_LAN966X_PCI dependency
  i2c: eg20t: Consistently define pci_device_ids using named initializers
  i2c: designware-pcidrv: Consistently define pci_device_ids using named initializers
  i2c: bcm-kona: fix spelling mistake in timeout-check comment
  i2c: cadence: Add shutdown handler
  i2c: tegra: Disable fair arbitration for non-MCTP buses
  i2c: tegra: use dmaengine_get_dma_device() for DMA buffer allocation
  i2c: busses: make K1 driver default for SpacemiT platforms
  i2c: Use named initializers for arrays of i2c_device_data
  i2c: core: clean up adapter registration error label
  i2c: core: clean up bus id allocation
  i2c: core: fix adapter deregistration race
  i2c: core: fix adapter registration race
  i2c: core: disable runtime PM on adapter registration failure
  ...
2026-06-16 07:43:29 +05:30
Wolfram Sang
5cad752e1e dt-bindings: i2c: mux-gpio: name correct maintainer
The YAML conversion added me as maintainer but I can't recall being
asked nor do I want to maintain it. Add Peter as maintainer for the
binding as he is maintainer of the driver.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Peter Korsgaard <peter.korsgaard@barco.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
2026-06-12 16:58:38 +02:00
Nihal Kumar Gupta
7c9474bd4a
dt-bindings: i2c: qcom-cci: Document Glymur compatible
Add Glymur compatible consistent with CAMSS CCI interfaces.

Signed-off-by: Nihal Kumar Gupta <nihal.gupta@oss.qualcomm.com>
Signed-off-by: Vikram Sharma <vikram.sharma@oss.qualcomm.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2026-06-09 13:00:34 +02:00
Nihal Kumar Gupta
e3a8f83293
dt-bindings: i2c: qcom-cci: Document Shikra compatible
Add Shikra compatible consistent with CAMSS CCI interfaces.
It requires only two clocks.

Signed-off-by: Nihal Kumar Gupta <nihal.gupta@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2026-06-09 13:00:34 +02:00
Rob Herring (Arm)
37534121c4 dt-bindings: Fix phandle-array constraints, again
The unfortunately named 'phandle-array' property type is really a matrix
with phandle and fixed arg cells entries. A matrix property should have 2
levels of items constraints.

Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/20260507201749.2605365-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2026-05-15 18:18:05 -05:00
Chaitanya Sabnis
70dc84bd48
dt-bindings: i2c: convert davinci i2c to dt-schema
Convert the Texas Instruments DaVinci and Keystone I2C controller
bindings from legacy text format to modern dt-schema (YAML).

During the conversion, the `interrupts` property was made required
to match the strict requirement in the driver probe function. The
custom `ti,has-pfunc` and `power-domains` properties were also
properly defined to match SoC-specific hardware features.

Signed-off-by: Chaitanya Sabnis <chaitanya.msabnis@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260513123758.4955-1-chaitanya.msabnis@gmail.com
2026-05-13 23:57:08 +02:00
Daniel Golle
0f2280c8e8 dt-bindings: drop tab characters from DTS examples
YAML literal block scalars cannot use tabs for indent.
Replace tab separators (mostly between values and trailing /* ... */
comments) with single spaces.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/2044ee0cac191c7be8b6e989fc3c99b24aa4cc5e.1777434096.git.daniel@makrotopia.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2026-05-05 10:54:45 -05:00
Janne Grunau
c5f25f5800 dt-bindings: i2c: apple,i2c: Add t8122 compatible
The i2c block on the Apple silicon t8122 (M3) SoC is compatible with the
existing driver. Add "apple,t8122-i2c" as SoC specific compatible under
"apple,t8103-i2c" used by the deriver.

Signed-off-by: Janne Grunau <j@jannau.net>
Acked-by: Andi Shyti <andi.shyti@kernel.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2026-05-04 10:29:46 +02:00
Ronald Claveau
9a937ca227 dt-bindings: i2c: amlogic: Add compatible for T7 SOC
Add the T7 SOC compatible which fallback to AXG compatible.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Ronald Claveau <linux-kernel-dev@aliel.fr>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2026-05-04 10:13:28 +02:00
Binbin Zhou
22623d6df6
dt-bindings: i2c: loongson,ls2x: Add ls2k0300-i2c compatible
Add "loongson,ls2k0300-i2c" dedicated compatible for representing I2C of
Loongson-2K0300 chip, because its HW integration is quiet different from
others.

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/494e63efe2d129931402308c7c4d461454a30989.1776135865.git.zhoubinbin@loongson.cn
2026-04-27 12:35:25 +02:00
Wolfram Sang
d891635322 i2c-host for v7.1, part 2
- cx92755: convert I2C bindings to DT schema
 - mediatek: add optional bus power management during transfers
 - pxa: handle early bus busy condition
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Merge tag 'i2c-host-7.1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-mergewindow

i2c-host for v7.1, part 2

- cx92755: convert I2C bindings to DT schema
- mediatek: add optional bus power management during transfers
- pxa: handle early bus busy condition
2026-04-20 00:03:38 +02:00
Linus Torvalds
fba676bd29 i2c-for-7.1-rc1-part1
- generic cleanups in npcm7xx, qcom-cci, xiic and designware DT
   bindings
 - atr: use kzalloc_flex for alias pool allocation
 - ixp4xx: convert bindings to DT schema
 - ocores: use read_poll_timeout_atomic() for polling waits
 - qcom-geni: skip extra TX DMA TRE for single read messages
 - s3c24xx: validate SMBus block length before using it
 - spacemit: refactor xfer path and add K1 PIO support
 - tegra: identify DVC and VI with SoC data variants
 - tegra: support SoC-specific register offsets
 - xiic: switch to devres and generic fw properties
 - xiic: skip input clock setup on non-OF systems
 - various minor improvements in other drivers
 
 rtl9300:
 - add per-SoC callbacks and clock support for RTL9607C
 - add support for new 50 kHz and 2.5 MHz bus speeds
 - general refactoring in preparation for RTL9607C support
 
 New support:
 - DesignWare GOOG5000 (ACPI HID)
 - Intel Nova Lake (ACPI ID)
 - Realtek RTL9607C
 - SpacemiT K3 binding
 - Tegra410 register layout support
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Merge tag 'i2c-for-7.1-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:
 "The biggest news in this pull request is that it will start the last
  cycle of me handling the I2C subsystem. From 7.2. on, I will pass
  maintainership to Andi Shyti who has been maintaining the I2C drivers
  for a while now and who has done a great job in doing so.

  We will use this cycle for a hopefully smooth transition. Thanks must
  go to Andi for stepping up! I will still be around for guidance.

  Updates:
   - generic cleanups in npcm7xx, qcom-cci, xiic and designware DT
     bindings
   - atr: use kzalloc_flex for alias pool allocation
   - ixp4xx: convert bindings to DT schema
   - ocores: use read_poll_timeout_atomic() for polling waits
   - qcom-geni: skip extra TX DMA TRE for single read messages
   - s3c24xx: validate SMBus block length before using it
   - spacemit: refactor xfer path and add K1 PIO support
   - tegra: identify DVC and VI with SoC data variants
   - tegra: support SoC-specific register offsets
   - xiic: switch to devres and generic fw properties
   - xiic: skip input clock setup on non-OF systems
   - various minor improvements in other drivers

  rtl9300:
   - add per-SoC callbacks and clock support for RTL9607C
   - add support for new 50 kHz and 2.5 MHz bus speeds
   - general refactoring in preparation for RTL9607C support

  New support:
   - DesignWare GOOG5000 (ACPI HID)
   - Intel Nova Lake (ACPI ID)
   - Realtek RTL9607C
   - SpacemiT K3 binding
   - Tegra410 register layout support"

* tag 'i2c-for-7.1-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (40 commits)
  i2c: usbio: Add ACPI device-id for NVL platforms
  i2c: qcom-geni: Avoid extra TX DMA TRE for single read message in GPI mode
  i2c: atr: use kzalloc_flex
  i2c: spacemit: introduce pio for k1
  i2c: spacemit: move i2c_xfer_msg()
  i2c: xiic: skip input clock setup on non-OF systems
  i2c: xiic: use numbered adapter registration
  i2c: xiic: cosmetic: use resource format specifier in debug log
  i2c: xiic: cosmetic cleanup
  i2c: xiic: switch to generic device property accessors
  i2c: xiic: remove duplicate error message
  i2c: xiic: switch to devres managed APIs
  i2c: rtl9300: add RTL9607C i2c controller support
  i2c: rtl9300: introduce new function properties to driver data
  i2c: rtl9300: introduce clk struct for upcoming rtl9607 support
  dt-bindings: i2c: realtek,rtl9301-i2c: extend for clocks and RTL9607C support
  i2c: rtl9300: introduce a property for 8 bit width reg address
  i2c: rtl9300: introduce F_BUSY to the reg_fields struct
  i2c: rtl9300: introduce max length property to driver data
  i2c: rtl9300: split data_reg into read and write reg
  ...
2026-04-18 09:44:22 -07:00
Shi Hao
60c8a400fb
dt-bindings: i2c: cnxt,cx92755-i2c: Convert to DT schema
Convert the Conexant Digicolor I2C bindings to DT schema.

Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260411112451.35095-1-i.shihao.999@gmail.com
2026-04-15 00:20:50 +02:00
Wolfram Sang
e336aa3c39 i2c-host for v7.1, part 1
- generic cleanups in npcm7xx, qcom-cci, xiic and designware DT
   bindings
 
 - atr: use kzalloc_flex for alias pool allocation
 - ixp4xx: convert bindings to DT schema
 - ocores: use read_poll_timeout_atomic() for polling waits
 - qcom-geni: skip extra TX DMA TRE for single read messages
 - s3c24xx: validate SMBus block length before using it
 - spacemit: refactor xfer path and add K1 PIO support
 - tegra: identify DVC and VI with SoC data variants
 - tegra: support SoC-specific register offsets
 - xiic: switch to devres and generic fw properties
 - xiic: skip input clock setup on non-OF systems
 
 rtl9300:
 - add per-SoC callbacks and clock support for RTL9607C
 - add support for new 50 kHz and 2.5 MHz bus speeds
 - general refactoring in preparation for RTL9607C support
 
 New support:
 - DesignWare GOOG5000 (ACPI HID)
 - Intel Nova Lake (ACPI ID)
 - Realtek RTL9607C
 - SpacemiT K3 binding
 - Tegra410 register layout support
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Merge tag 'i2c-host-7.1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-mergewindow

i2c-host for v7.1, part 1

- generic cleanups in npcm7xx, qcom-cci, xiic and designware DT
  bindings

- atr: use kzalloc_flex for alias pool allocation
- ixp4xx: convert bindings to DT schema
- ocores: use read_poll_timeout_atomic() for polling waits
- qcom-geni: skip extra TX DMA TRE for single read messages
- s3c24xx: validate SMBus block length before using it
- spacemit: refactor xfer path and add K1 PIO support
- tegra: identify DVC and VI with SoC data variants
- tegra: support SoC-specific register offsets
- xiic: switch to devres and generic fw properties
- xiic: skip input clock setup on non-OF systems

rtl9300:
- add per-SoC callbacks and clock support for RTL9607C
- add support for new 50 kHz and 2.5 MHz bus speeds
- general refactoring in preparation for RTL9607C support

New support:
- DesignWare GOOG5000 (ACPI HID)
- Intel Nova Lake (ACPI ID)
- Realtek RTL9607C
- SpacemiT K3 binding
- Tegra410 register layout support
2026-04-14 21:48:38 +02:00
Rustam Adilov
1211ce1e11
dt-bindings: i2c: realtek,rtl9301-i2c: extend for clocks and RTL9607C support
Add the "realtek,rtl9607-i2c" compatible for i2c controller on the
RTL9607C SoC series.

Add a clocks property to the properties to describe the i2c reference
clock and make it available for all the compatibles. This i2c reference
clock is assumed to be coming from switchcore region via Lexra bus as
the other SoC peripherals.

According to the info available about the existing devices, they also
have the i2c master controller clocks.

RTL9607C requires the "realtek,scl" and "clocks" to be specified
and so handle it under separate if check for "realtek,rtl9607-i2c".

Signed-off-by: Rustam Adilov <adilov@disroot.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260401180648.337834-6-adilov@disroot.org
2026-04-02 00:09:21 +02:00
Shi Hao
d3e2c7476e
dt-bindings: i2c: intel,ixp4xx-i2c: Convert to DT schema
Convert the IOP3xx and IXP4xx XScale bindings to DT schema. This
conversion also adds the interrupts property, as it is used by the driver
and existing DTS files but was not documented in the original binding.

Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260330054439.9545-1-i.shihao.999@gmail.com
2026-04-01 00:30:43 +02:00
Yixun Lan
4f1e5c9672
dt-bindings: i2c: spacemit: k3: Add compatible
Add a compatible string for the I2C controller found in SpacemiT K3 SoC
which use same I2C IP as K1, so make it fallback to K1 compatible.

Signed-off-by: Yixun Lan <dlan@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Link: https://lore.kernel.org/r/20260325-02-k3-i2c-v1-1-78f29c83d9ac@kernel.org
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2026-03-26 23:25:27 +01:00
Andy Shevchenko
d78908eae8
dt-bindings: i2c: dw: Remove unused bindings
As stated in the d70f60ad96 ("i2c: designware: Remove
not-going-to-be-supported code for Baikal SoC") the Baikal
platforms are not supported and the respective driver code
was removed. Remove the currently unused bindings.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260224115210.3499191-1-andriy.shevchenko@linux.intel.com
2026-03-25 18:06:53 +01:00
Biju Das
58ea47a30b dt-bindings: i2c: renesas,riic: Document the R9A08G046 support
Document the Renesas RZ/G3L (R9A08G046) RIIC IP. This is compatible with
the version available on Renesas RZ/V2H (R9A09G057).

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2026-03-20 22:25:20 +01:00
Wenmeng Liu
5a2b3a8546 dt-bindings: i2c: qcom-cci: Document sm6150 compatible
Add the sm6150 CCI device string compatible.

Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Acked-by: Andi Shyti <andi.shyti@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Signed-off-by: Wenmeng Liu <wenmeng.liu@oss.qualcomm.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2026-03-20 22:22:19 +01:00
Luca Weiss
a78295dff1 dt-bindings: i2c: qcom-cci: Document Milos compatible
Add Milos compatible for the CAMSS CCI interfaces.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2026-03-20 22:12:46 +01:00
Mika Westerberg
d800d0bb20 dt-bindings: i2c: dw: Update maintainer
Jarkko does now work for Intel anymore and since I'm currently
maintaining this driver, update my contact information here to make sure
patches get Cc'd to me as well.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> (internally)
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2026-03-09 13:02:58 +01:00
Wolfram Sang
709cc48d3d Merge branch 'i2c/i2c-host-2' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-mergewindow 2026-02-19 15:11:15 +01:00
Linus Torvalds
bb7a3fc2c9 i2c-for-7.0-rc1
- core: cleaner fwnode usage
 - tegra: timing improvements and Tegra264 support
 - lpi2c: fix SMBus block read NACK after byte count
 - amd-mp2, designware, mlxbf, rtl9300, spacemit, tegra: cleanups
 - designware: use a dedicated algorithm for AMD Navi
 - designware: replace magic numbers with named constants
 - designware: replace min_t() with min() to avoid u8 truncation
 - designware: refactor core to enable mode switching
 - imx-lpi2c: add runtime PM support for IRQ and clock handling
 - lan9691-i2c: add new driver
 - rtl9300: use OF helpers directly and avoid fwnode handling
 - spacemit: add bus reset support
 - units: add HZ_PER_GHZ and use it in several i2c drivers
 
 at24 updates for v7.0-rc1
 
 - add a set of new compatibles to DT bindings
 - use dev_err_probe() consistently in the driver
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Merge tag 'i2c-for-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:
 - core: cleaner fwnode usage
 - tegra: timing improvements and Tegra264 support
 - lpi2c: fix SMBus block read NACK after byte count
 - amd-mp2, designware, mlxbf, rtl9300, spacemit, tegra: cleanups
 - designware:
    - use a dedicated algorithm for AMD Navi
    - replace magic numbers with named constants
    - replace min_t() with min() to avoid u8 truncation
    - refactor core to enable mode switching
 - imx-lpi2c: add runtime PM support for IRQ and clock handling
 - lan9691-i2c: add new driver
 - rtl9300: use OF helpers directly and avoid fwnode handling
 - spacemit: add bus reset support
 - units: add HZ_PER_GHZ and use it in several i2c drivers
 - at24 i2c eeprom:
    - add a set of new compatibles to DT bindings
    - use dev_err_probe() consistently in the driver

* tag 'i2c-for-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (46 commits)
  i2c: imx-lpi2c: fix SMBus block read NACK after byte count
  i2c: designware: Remove an unnecessary condition
  i2c: designware: Enable mode swapping
  i2c: designware: Combine the init functions
  i2c: designware: Combine some of the common functions
  i2c: designware: Use device_is_compatible() instead of custom approach
  dt-bindings: eeprom: at24: Add compatible for Puya P24C128F
  drivers/i2c/busses: use min() instead of min_t()
  i2c: imx-lpi2c: Add runtime PM support for IRQ and clock management on i.MX8QXP/8QM
  i2c: amd-mp2: clean up amd_mp2_find_device()
  i2c: designware: Replace magic numbers with named constants
  i2c: rtl9300: use of instead of fwnode
  i2c: rtl9300: remove const cast
  i2c: tegra: remove unused rst
  i2c: designware: Remove not-going-to-be-supported code for Baikal SoC
  i2c: spacemit: drop useless spaces
  i2c: mlxbf: Use HZ_PER_KHZ in the driver
  i2c: mlxbf: Remove unused bus speed definitions
  i2c: core: Use dev_fwnode()
  i2c: core: Replace custom implementation of device_match_fwnode()
  ...
2026-02-15 08:29:26 -08:00
Linus Torvalds
6589b3d76d soc: devicetree updates for 7.0
There are a handful of new SoCs this time, all of these are
 more or less related to chips in a wider family:
 
  - SpacemiT Key Stone K3 is an 8-core risc-v chip, and the first
    widely available RVA23 implementation. Note that this is
    entirely unrelated with the similarly named Texas Instruments
    K3 chip family that follwed the TI Keystone2 SoC.
 
  - The Realtek Kent family of SoCs contains three chip models
    rtd1501s, rtd1861b and rtd1920s, and is related to their earlier
    Set-top-box and NAS products such as rtd1619, but is built
    on newer Arm Cortex-A78 cores.
 
  - The Qualcomm Milos family includes the Snapdragon 7s Gen 3
    (SM7635) mobile phone SoC built around Armv9 Kryo cores of the Arm
    Cortex-A720 generation. This one is used in the Fairphone Gen 6
 
  - Qualcomm Kaanapali is a new SoC based around eight high
    performance Oryon CPU cores
 
  - NXP i.MX8QP and i.MX952 are both feature reduced versions of
    chips we already support, i.e. the i.MX8QM and i.MX952, with
    fewer CPU cores and I/O interfaces.
 
 As part of a cleanup, a number of SoC specific devicetree files got
 removed because they did not have a single board using the .dtsi files
 and they were never compile tested as a result: Samsung s3c6400,
 ST spear320s, ST stm32mp21xc/stm32mp23xc/stm32mp25xc, Renesas
 r8a779m0/r8a779m2/r8a779m4/r8a779m6/r8a779m7/r8a779m8/r8a779mb/
 r9a07g044c1/r9a07g044l1/r9a07g054l1/r9a09g047e37, and TI am3703/am3715.
 All of these could be restored easily if a new board gets merged.
 
 Broadcom/Cavium/Marvell ThunderX2 gets removed along with its only
 machine, as all remaining users are assumed to be using ACPI
 based firmware.
 
 A relatively small number of 43 boards get added this time, and
 almost all of them for arm64. Aside from the reference boards for
 the newly added SoCs, this includes:
 
  - Three server boards use 32-bit ASpeed BMCs
 
  - One more reference board for 32-bit Microchip LAN9668
 
  - 64-bit Arm single-board computers based on Amlogic s905y4,
    CIX sky1, NXP ls1028a/imx8mn/imx8mp/imx91/imx93/imx95,
    Qualcomm qcs6490/qrb2210 and Rockchip rk3568/rk3588s
 
  - Carrier board for SOMs using Intel agilex5, Marvell Armada 7020,
    NXP iMX8QP, Mediatek mt8370/mt8390 and rockchip rk3588
 
  - Two mobile phones using Snapdragon 845
 
  - A gaming device and a NAS box, both based on Rockchips rk356x
 
 On top of the newly added boards and SoCs, there is a lot of
 background activity going into cleanups, in particular towards
 getting a warning-free dtc build, and the usual work on adding
 support for more hardware on the previously added machines.
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Merge tag 'soc-dt-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC devicetree updates from Arnd Bergmann:
 "There are a handful of new SoCs this time, all of these are more or
  less related to chips in a wider family:

   - SpacemiT Key Stone K3 is an 8-core risc-v chip, and the first
     widely available RVA23 implementation. Note that this is entirely
     unrelated with the similarly named Texas Instruments K3 chip family
     that follwed the TI Keystone2 SoC.

   - The Realtek Kent family of SoCs contains three chip models
     rtd1501s, rtd1861b and rtd1920s, and is related to their earlier
     Set-top-box and NAS products such as rtd1619, but is built on newer
     Arm Cortex-A78 cores.

   - The Qualcomm Milos family includes the Snapdragon 7s Gen 3 (SM7635)
     mobile phone SoC built around Armv9 Kryo cores of the Arm
     Cortex-A720 generation. This one is used in the Fairphone Gen 6

   - Qualcomm Kaanapali is a new SoC based around eight high performance
     Oryon CPU cores

   - NXP i.MX8QP and i.MX952 are both feature reduced versions of chips
     we already support, i.e. the i.MX8QM and i.MX952, with fewer CPU
     cores and I/O interfaces.

  As part of a cleanup, a number of SoC specific devicetree files got
  removed because they did not have a single board using the .dtsi files
  and they were never compile tested as a result: Samsung s3c6400, ST
  spear320s, ST stm32mp21xc/stm32mp23xc/stm32mp25xc, Renesas
  r8a779m0/r8a779m2/r8a779m4/r8a779m6/r8a779m7/r8a779m8/r8a779mb/
  r9a07g044c1/r9a07g044l1/r9a07g054l1/r9a09g047e37, and TI
  am3703/am3715. All of these could be restored easily if a new board
  gets merged.

  Broadcom/Cavium/Marvell ThunderX2 gets removed along with its only
  machine, as all remaining users are assumed to be using ACPI based
  firmware.

  A relatively small number of 43 boards get added this time, and almost
  all of them for arm64. Aside from the reference boards for the newly
  added SoCs, this includes:

   - Three server boards use 32-bit ASpeed BMCs

   - One more reference board for 32-bit Microchip LAN9668

   - 64-bit Arm single-board computers based on Amlogic s905y4, CIX
     sky1, NXP ls1028a/imx8mn/imx8mp/imx91/imx93/imx95, Qualcomm
     qcs6490/qrb2210 and Rockchip rk3568/rk3588s

   - Carrier board for SOMs using Intel agilex5, Marvell Armada 7020,
     NXP iMX8QP, Mediatek mt8370/mt8390 and rockchip rk3588

   - Two mobile phones using Snapdragon 845

   - A gaming device and a NAS box, both based on Rockchips rk356x

  On top of the newly added boards and SoCs, there is a lot of
  background activity going into cleanups, in particular towards getting
  a warning-free dtc build, and the usual work on adding support for
  more hardware on the previously added machines"

* tag 'soc-dt-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (757 commits)
  dt-bindings: intel: Add Agilex eMMC support
  arm64: dts: socfpga: agilex: add emmc support
  arm64: dts: intel: agilex5: Add simple-bus node on top of dma controller node
  ARM: dts: socfpga: fix dtbs_check warning for fpga-region
  ARM: dts: socfpga: add #address-cells and #size-cells for sram node
  dt-bindings: altera: document syscon as fallback for sys-mgr
  arm64: dts: altera: Use lowercase hex
  dt-bindings: arm: altera: combine Intel's SoCFPGA into altera.yaml
  arm64: dts: socfpga: agilex5: Add IOMMUS property for ethernet nodes
  arm64: dts: socfpga: agilex5: add support for modular board
  dt-bindings: intel: Add Agilex5 SoCFPGA modular board
  arm64: dts: socfpga: agilex5: Add dma-coherent property
  arm64: dts: realtek: Add Kent SoC and EVB device trees
  dt-bindings: arm: realtek: Add Kent Soc family compatibles
  ARM: dts: samsung: Drop s3c6400.dtsi
  ARM: dts: nuvoton: Minor whitespace cleanup
  MAINTAINERS: Add Falcon DB
  arm64: dts: a7k: add COM Express boards
  ARM: dts: microchip: Drop usb_a9g20-dab-mmx.dtsi
  arm64: dts: rockchip: Fix rk3588 PCIe range mappings
  ...
2026-02-10 21:11:08 -08:00
Danny Kaehn
079a015b5a
dt-bindings: i2c: Add CP2112 HID USB to SMBus Bridge
This is a USB HID device which includes an I2C controller and 8 GPIO pins.

The binding allows describing the chip's gpio and i2c controller in DT,
with the i2c controller being bound to a subnode named "i2c". This is
intended to be used in configurations where the CP2112 is permanently
connected in hardware.

Signed-off-by: Danny Kaehn <danny.kaehn@plexus.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260127-cp2112-dt-v13-1-6448ddd4bf22@plexus.com
2026-02-07 01:20:05 +01:00
Nihal Kumar Gupta
eddfdab4de
dt-bindings: i2c: qcom-cci: Document qcs8300 compatible
The three instances of CCI found on the QCS8300 are functionally the same
as on a number of existing Qualcomm SoCs.

Introduce a new SoC-specific compatible string "qcom,qcs8300-cci" with a
common fallback.

Signed-off-by: Nihal Kumar Gupta <quic_nihalkum@quicinc.com>
Signed-off-by: Vikram Sharma <quic_vikramsa@quicinc.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260121183142.1867199-2-quic_nihalkum@quicinc.com
2026-02-04 16:42:04 +01:00
Wolfram Sang
8ed5a41afd i2c-host for v6.20
- amd-mp2, designware, mlxbf, rtl9300, spacemit, tegra: cleanups
 - designware: use a dedicated algorithm for AMD Navi
 - designware: replace magic numbers with named constants
 - designware: replace min_t() with min() to avoid u8 truncation
 - designware: refactor core to enable mode switching
 - imx-lpi2c: add runtime PM support for IRQ and clock handling
 - lan9691-i2c: add new driver
 - rtl9300: use OF helpers directly and avoid fwnode handling
 - spacemit: add bus reset support
 - units: add HZ_PER_GHZ and use it in several i2c drivers
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Merge tag 'i2c-host-6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-mergewindow

i2c-host for v6.20

- amd-mp2, designware, mlxbf, rtl9300, spacemit, tegra: cleanups
- designware: use a dedicated algorithm for AMD Navi
- designware: replace magic numbers with named constants
- designware: replace min_t() with min() to avoid u8 truncation
- designware: refactor core to enable mode switching
- imx-lpi2c: add runtime PM support for IRQ and clock handling
- lan9691-i2c: add new driver
- rtl9300: use OF helpers directly and avoid fwnode handling
- spacemit: add bus reset support
- units: add HZ_PER_GHZ and use it in several i2c drivers
2026-02-03 21:53:38 +01:00
Arnd Bergmann
1092e5c0d1 STM32 DT for v6.20, round 1
Highlights:
 ----------
 
 - MCU:
   - Update/add Led support on ST boards.
 
 - MPU:
   - STM32MP13:
     - Add boot led and red led on ST DK board.
 
   - STMP32MP15:
     - Add boot led and red led on ST DK boards.
     - Add SPI1 sleep pinctrl group.
 
   - STM32MP23:
     - Add green ,orange and boot leds on ST boards.
     - Add SPI, I2C, DCMIPP and CSI instances to CLUSTER_PD
       power domain.
     - Enable analog-filter to all I2C instances.
 
   - STM32MP25:
     - Add green ,orange and boot leds on ST boards.
     - Add SPI, I2C, DCMIPP and CSI instances to CLUSTER_PD
       power domain.
     - Enable analog-filter to all I2C instances.
     - Add LPDDR/DDR channels to ST boards.
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Merge tag 'stm32-dt-for-v6.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32 into soc/dt

STM32 DT for v6.20, round 1

Highlights:
----------

- MCU:
  - Update/add Led support on ST boards.

- MPU:
  - STM32MP13:
    - Add boot led and red led on ST DK board.

  - STMP32MP15:
    - Add boot led and red led on ST DK boards.
    - Add SPI1 sleep pinctrl group.

  - STM32MP23:
    - Add green ,orange and boot leds on ST boards.
    - Add SPI, I2C, DCMIPP and CSI instances to CLUSTER_PD
      power domain.
    - Enable analog-filter to all I2C instances.

  - STM32MP25:
    - Add green ,orange and boot leds on ST boards.
    - Add SPI, I2C, DCMIPP and CSI instances to CLUSTER_PD
      power domain.
    - Enable analog-filter to all I2C instances.
    - Add LPDDR/DDR channels to ST boards.

* tag 'stm32-dt-for-v6.20-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32: (31 commits)
  arm/arm64: dts: st: Drop unused .dtsi
  arm64: STM32: drop an undefined Kconfig symbol
  arm64: dts: st: Minor whitespace cleanup
  arm64: dts: st: Use hyphen in node names
  arm64: dts: st: add power-domain of dcmipp in stm32mp231.dtsi
  arm64: dts: st: add power-domain of dcmipp in stm32mp251.dtsi
  dt-bindings: media: st: dcmipp: add 'power-domains' property
  arm64: dts: st: add power-domain of csi in stm32mp231.dtsi
  arm64: dts: st: add power-domain of csi in stm32mp251.dtsi
  dt-bindings: media: st: csi: add 'power-domains' property
  ARM: dts: stm32: add spi1 sleep state pinctrl on stm32mp157c-ev1
  arm64: dts: st: add DDR channel to stm32mp257f-ev1 board
  arm64: dts: st: add LPDDR channel to stm32mp257f-dk board
  arm64: dts: st: enable i2c analog-filter in stm32mp231.dtsi
  arm64: dts: st: enable i2c analog-filter in stm32mp251.dtsi
  arm64: dts: st: add power-domains in all i2c of stm32mp231.dtsi
  arm64: dts: st: add power-domains in all i2c of stm32mp251.dtsi
  dt-bindings: i2c: st,stm32-i2c: add 'power-domains' property
  arm64: dts: st: add power-domains in all spi of stm32mp231.dtsi
  arm64: dts: st: add power-domains in all spi of stm32mp251.dtsi
  ...

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2026-01-28 17:04:28 +01:00
Alain Volmat
974e24ed49 dt-bindings: i2c: st,stm32-i2c: add 'power-domains' property
STM32 I2C may be in a power domain which is the case for the STM32MP2x
based boards. Allow a single 'power-domains' entry for STM32 I2C.

Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251215-stm32-i2c-mp2x-dt-updates-v1-1-2738a05a7af8@foss.st.com
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
2026-01-20 09:54:15 +01:00
Louis-Alexis Eyraud
aa1292d109 dt-bindings: i2c: i2c-mt65xx: Add compatible for MT8189 SoC
Add compatible string for MT8189 SoC.
Its multiple I2C controller instances are compatible with the ones
found in the MT8188 SoC.

Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2026-01-14 08:02:20 +01:00
Rob Herring (Arm)
747d2464e6 dt-bindings: i2c: brcm,iproc-i2c: Allow 2 reg entries for brcm,iproc-nic-i2c
The brcm,iproc-nic-i2c variant has 2 reg entries.

The second one is related to the brcm,ape-hsls-addr-mask property, but it's
not clear what a proper description would be.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2026-01-13 16:30:22 +01:00
Robert Marko
e2370b8b2c
dt-bindings: i2c: atmel,at91sam: add microchip,lan9691-i2c
Document Microchip LAN969x I2C compatible.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20251229184004.571837-6-robert.marko@sartura.hr
2026-01-07 19:10:11 +01:00
Encrow Thorne
ad0876a846
dt-bindings: i2c: spacemit: add optional resets
The I2C controller requires a reset to ensure it starts from a clean state.

Add the 'resets' property to support this hardware requirement.

Signed-off-by: Encrow Thorne <jyc0019@gmail.com>
Reviewed-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20251230150653.42097-1-jyc0019@gmail.com
2026-01-07 18:41:20 +01:00