kernel/linux.git/Documentation/i2c, branch v6.12.80

i2c: i801: Add support for Intel Panther Lake

2024-12-14T19:03:55+00:00

[ Upstream commit bd492b58371295d3ae26162b9666be584abad68a ] Add SMBus PCI IDs on Intel Panther Lake-P and -U. Signed-off-by: Jarkko Nikula Signed-off-by: Andi Shyti Signed-off-by: Sasha Levin

i2c: testunit: add SMBusAlert trigger

2024-08-26T13:15:48+00:00

To test SMBusAlert handlers, let the testunit be able to trigger SMBusAlert interrupts. This new command needs a GPIO connected to the SMBAlert# line. Signed-off-by: Wolfram Sang

i2c: testunit: describe fwnode based instantiation

2024-08-26T13:15:22+00:00

The testunit can also be instantiated via firmware nodes. Give a devicetree node as an example. Signed-off-by: Wolfram Sang

i2c: testunit: return current command on read messages

2024-08-14T17:56:51+00:00

Because the testunit can start tests in the future via the DELAY register, it may happen that a command is still pending. Support detecting that by returning the number of a command in progress (if there is one). Signed-off-by: Wolfram Sang

i2c: testunit: add command to support versioning and test rep_start

2024-08-14T17:55:40+00:00

For some devices, it is essential that controllers handle repeated start correctly and do not replace it with a stop/start combination. This addition helps to test that because it will only return a version string if repeated start is done properly. Signed-off-by: Wolfram Sang

i2c: testunit: use decimal values in docs when appropriate

2024-08-14T17:55:10+00:00

Sometimes decimal values are just shorter (like for cmds), sometimes they are even easier to understand (like for the delay value). Make use of them. Signed-off-by: Wolfram Sang

Merge tag 'i2c-host-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-mergewindow

2024-07-13T09:10:54+00:00

This release includes significant updates, with the primary change being the renaming from "master/slave" to "controller/target" to adhere to I2C v7 and SMBus 3.2 standards. New Support: - Added support for Intel Arrow Lake-H. - Added I2C support in the Arioha SoC by linking the Mediatek I2C controller. Cleanups: - Added the MODULE_DESCRIPTION() macro, resolving a modpost warning in the ALi 1563 Southbridge driver. - Constified the regmap_config declaration in the i2c-designware driver. - Improved the coding style in the Renesas R-Car driver by removing unnecessary semicolons after brackets. General improvements: - In the OMAP device, replaced NOIRQ_SYSTEM_SLEEP_PM_OPS with RUNTIME_PM_OPS to enable waking up the controller during suspend() before suspend_noirq() kicks in. - Improved logging in the Xilinx driver. - Added a warning (WARN()) in the Renesas R-Car driver for spurious interrupts. DTS Changes: - Removed address-cell and size-cell from the Atmel at91sam, nVidia Tegra 20, and Samsung S3c2410 devices. - Fixed Texas Instruments OMAP4 I2C controller to comply with the i2c-controller.yaml schema. - Improved indentation in DTS examples for several I2C devices. - Converted the NXP LPC1788 binding to the dt-schema. - Added documentation for the compatible string thead,th1520-i2c. - Added the "power-domains" property for the Meson I2C driver.

i2c: add debug message for detected HostNotify alerts

2024-07-10T06:31:59+00:00

Setting up HostNotify can be tricky. Support debugging by stating when a HostNotify alert was received independent of the irq being mapped. Especially useful with the in-kernel i2c testunit. Update documentation as well. Signed-off-by: Wolfram Sang Reviewed-by: Andi Shyti

i2c: i801: Add support for Intel Arrow Lake-H

2024-07-08T22:46:05+00:00

Add SMBus PCI ID on Intel Arrow Lake-H. Signed-off-by: Jarkko Nikula Signed-off-by: Andi Shyti

Documentation: i2c: testunit: use proper reST

2024-06-26T10:45:25+00:00

This document is hardly readable when converted to HTML. Mark code sections as such and use tables to improve readability a lot. Some content has slightly been moved around, but no significant changes were made. Signed-off-by: Wolfram Sang