linux/Documentation/i2c
Wolfram Sang 1b3073291d i2c-host updates for v6.13, part 1
Improvements and Refactoring:
 
  - All controllers using the 'remove_new' callback have been
    reverted to use the 'remove' callback.
 
  - Makefile improvements (switched from '*-objs' to '*-y')
 
  - Intel SCH controller underwent significant refactoring:
    - Improved usage of private data references.
    - Transitioned to memory-mapped I/O functions.
    - Adopted 'devm' functions for resource management.
    - Added kernel-doc compatible comments.
    - Used 'const' where applicable.
    - Numerous smaller refinements.
    This brings love and a modern look to the driver.
 
  - Additional cleanups in the DesignWare driver.
 
  - PIIX4 driver updates:
    - Exposed functions and definitions in the header file to
      enable usage by other drivers (e.g., AMD ASF).
 
  - Nuvoton NPCM I2C controller:
    - Enhanced read/write operations and bus error (BER) flag
      management to address corner cases that could lead to
      timeouts.
 
  - Qualcomm CCI driver received several cleanups.
 
  - iMX/MXC:
    - Improved message handling to reduce I2C protocol overhead.
    - Refactored DMA/non-DMA read/write and bus polling mechanisms
      to achieve this.
 
 New Features:
 
  - i2c-cadence:
    - Added support for atomic transfers.
    - Refactored to group generic code into separate functions.
 
  - Qualcomm CCI:
    - Added support for a 32MHz serial engine clock.
 
  - Added support for:
    - HJMC01 DesignWare ACPI HID.
    - ACPI documentation for PIIX4.
 
 Deprecated Features:
 
  - Dropped support for AMD756 S4882 and NFORCE2 S4985.
 
 New Hardware Support:
 
  - Added support for:
    - Intel Panther Lake.
    - AMD ASF.
    - S32G2/S32G3 SoCs.
    - Realtek RTL I2C Controller.
 
  - New drivers:
    - 'i2c-amd-asf-plat.c' for AMD ASF.
    - 'i2c-rtl9300.c' for Realtek RTL.
 
 Fixes:
 
  - AMD ASF driver:
    - Fixed an uninitialised 'len' variable.
 
 Devicetree Updates:
 
  - Documented Qualcomm SDM670.
  - Added 'PIC64GX' compatibility to Microchip Core I2C binding.
  - Added support for S32G.
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Merge tag 'i2c-host-6.13-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-mergewindow

i2c-host updates for v6.13, part 1

Major Improvements and Refactoring:

 - All controllers using the 'remove_new' callback have been
   reverted to use the 'remove' callback.

 - Intel SCH controller underwent significant refactoring,
   this brings love and a modern look to the driver.

 - PIIX4 driver refactored to enable usage by other drivers
   (e.g., AMD ASF).

 - iMX/MXC improved message handling to reduce protocol overhead:
     Refactored DMA/non-DMA read/write and bus polling mechanisms
     to achieve this.

 - ACPI documentation for PIIX4.

New Features:

 - i2c-cadence added support for atomic transfers.
 - Qualcomm CII added support for a 32MHz serial engine clock.

Deprecated Features:

 - Dropped outdated support for AMD756 S4882 and NFORCE2 S4985. If
   somebody misses this, Jean will rewrite support using the proper
   i2c mux framework.

New Hardware Support:

 - Added support for:
   - Intel Panther Lake (new ID)
   - AMD ASF (new driver)
   - S32G2/S32G3 SoCs (new ID)
   - Realtek RTL I2C Controller (new driver)
   - HJMC01 DesignWare ACPI HID (new ID)
   - PIC64GX to Microchip Core (new ID)
   - Qualcomm SDM670 to Qualcomm CCI (new ID)
2024-11-18 08:35:47 +01:00
..
busses docs: i2c: piix4: Add ACPI section 2024-11-17 11:58:57 +01:00
muxes docs: i2c: convert to ReST and add to driver-api bookset 2019-07-31 13:25:27 -06:00
dev-interface.rst Documentation: i2c: fix references to other documents 2022-09-16 20:53:58 +01:00
dma-considerations.rst docs: i2c: call it "I2C" consistently 2020-01-29 22:01:24 +01:00
fault-codes.rst Documentation: i2c: add fault code for not supporting 10 bit addresses 2023-10-29 21:03:35 +01:00
functionality.rst docs: i2c: convert to ReST and add to driver-api bookset 2019-07-31 13:25:27 -06:00
gpio-fault-injection.rst Documentation: i2c: correct spelling 2023-02-15 20:59:44 +01:00
i2c_bus.svg docs: i2c: summary: document use of inclusive language 2024-06-22 10:11:50 +02:00
i2c-address-translators.rst Documentation/i2c: fix spelling error in i2c-address-translators 2023-12-27 20:05:44 +01:00
i2c-protocol.rst docs: i2c: i2c-protocol: remove unused legend items 2022-08-11 23:05:11 +02:00
i2c-stub.rst docs: i2c: convert to ReST and add to driver-api bookset 2019-07-31 13:25:27 -06:00
i2c-sysfs.rst docs: i2c: i2c-sysfs: fix hyperlinks 2022-08-11 23:25:05 +02:00
i2c-topology.rst docs: i2c: i2c-topology: reorder sections more logically 2022-08-29 12:28:13 +02:00
index.rst media: i2c: add I2C Address Translator (ATR) support 2023-07-14 13:11:44 +02:00
instantiating-devices.rst docs: i2c: instantiating-devices: add syntax coloring to dts and C blocks 2022-08-11 23:07:19 +02:00
old-module-parameters.rst docs: i2c: avoid using ReST :doc:foo markup 2021-06-17 13:24:38 -06:00
slave-eeprom-backend.rst i2c: slave-eeprom: update documentation 2020-07-04 08:17:53 +02:00
slave-interface.rst docs: i2c: slave-interface: return errno when handle I2C_SLAVE_WRITE_REQUESTED 2022-09-28 21:41:59 +02:00
slave-testunit-backend.rst i2c: testunit: add SMBusAlert trigger 2024-08-26 15:15:48 +02:00
smbus-protocol.rst Documentation: i2c: correct spelling 2023-02-15 20:59:44 +01:00
summary.rst docs: i2c: summary: be clearer with 'controller/target' and 'adapter/client' pairs 2024-06-22 10:11:56 +02:00
ten-bit-addresses.rst docs: i2c: convert to ReST and add to driver-api bookset 2019-07-31 13:25:27 -06:00
writing-clients.rst Documentation: i2c: Constify struct i2c_device_id 2024-11-14 10:35:30 +01:00