user/sven/linux.git/drivers/i2c/busses/Makefile, branch master

i2c: designware: Remove useless driver specific option for I2C target

2025-12-27T20:13:55Z

The generic option for I2C target is already user selectable, which makes the DesignWare specific option completely unnecessary. The DesignWare option also silently selected I2C_SLAVE instead of depending on it without any real need for it. Reviewed-by: Andy Shevchenko Signed-off-by: Heikki Krogerus Acked-by: Mika Westerberg Signed-off-by: Andi Shyti Link: https://lore.kernel.org/r/20251218151509.361617-2-heikki.krogerus@linux.intel.com

Merge tag 'usb-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

2025-10-04T23:07:08Z

Pull USB / Thunderbolt updates from Greg KH: "Here is the big set of USB and thunderbolt drivers for 6.18-rc1. It was another normal development cycle, with lots of the usual drivers getting updates: - Thunderbolt driver cleanups and additions - dwc3 driver updates - dwc2 driver updates - typec driver updates - xhci driver updates and additions - offload USB engine updates for better power management - unused tracepoint removals - usb gadget fixes and updates as more users start to rely on these drivers instead of the "old" function gadget drivers - new USB device ids - other minor driver USB driver updates - new USB I/O driver framework and driver additions" The last item, the usb i/o driver, has an i2c and gpio driver added through this tree. Those drivers were acked by the respective subsystem maintainers. All of these have been in linux-next for a while" * tag 'usb-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (132 commits) usb: vhci-hcd: Prevent suspending virtually attached devices USB: serial: option: add SIMCom 8230C compositions thunderbolt: Fix use-after-free in tb_dp_dprx_work usb: xhci: align PORTSC trace with one-based port numbering usb: xhci: correct indentation for PORTSC tracing function usb: xhci: improve TR Dequeue Pointer mask usb: xhci-pci: add support for hosts with zero USB3 ports usb: xhci: Update a comment about Stop Endpoint retries Revert "usb: xhci: Avoid Stop Endpoint retry loop if the endpoint seems Running" usb: gadget: f_rndis: Refactor bind path to use __free() usb: gadget: f_ecm: Refactor bind path to use __free() usb: gadget: f_acm: Refactor bind path to use __free() usb: gadget: f_ncm: Refactor bind path to use __free() usb: gadget: Introduce free_usb_request helper usb: gadget: Store endpoint pointer in usb_request usb: host: xhci-rcar: Add Renesas RZ/G3E USB3 Host driver support usb: host: xhci-plat: Add .post_resume_quirk for struct xhci_plat_priv usb: host: xhci-rcar: Move R-Car reg definitions dt-bindings: usb: Document Renesas RZ/G3E USB3HOST usb: gadget: f_fs: Fix epfile null pointer access after ep enable. ...

i2c: Add Nuvoton NCT6694 I2C support

2025-09-16T13:41:57Z

This driver supports I2C adapter functionality for NCT6694 MFD device based on USB interface. Each I2C controller uses the default baudrate of 100kHz, which can be overridden via module parameters. Acked-by: Andi Shyti Reviewed-by: Wolfram Sang Signed-off-by: Ming Yu Link: https://lore.kernel.org/r/20250912091952.1169369-4-a0282524688@gmail.com Signed-off-by: Lee Jones

i2c: Add Intel USBIO I2C driver

2025-09-12T12:05:10Z

Add a a driver for the I2C auxbus child device of the Intel USBIO USB IO-expander used by the MIPI cameras on various new (Meteor Lake and later) Intel laptops. Co-developed-by: Hans de Goede Signed-off-by: Hans de Goede Signed-off-by: Israel Cepeda Reviewed-by: Wolfram Sang Link: https://lore.kernel.org/r/20250911181343.77398-4-hansg@kernel.org Signed-off-by: Greg Kroah-Hartman

i2c: amd-isp: Add ISP i2c-designware driver

2025-05-19T20:23:56Z

The camera sensor is connected via ISP I2C bus in AMD SOC architectures. Add new I2C designware driver to support new camera sensors on AMD HW. Co-developed-by: Venkata Narendra Kumar Gutta Signed-off-by: Venkata Narendra Kumar Gutta Co-developed-by: Bin Du Signed-off-by: Bin Du Signed-off-by: Pratap Nirujogi Reviewed-by: Mario Limonciello Link: https://lore.kernel.org/r/20250424184952.1290019-1-pratap.nirujogi@amd.com Signed-off-by: Andi Shyti

i2c: spacemit: add support for SpacemiT K1 SoC

2025-03-21T00:31:03Z

This patch introduces basic I2C support for the SpacemiT K1 SoC, utilizing interrupts for transfers. The driver has been tested using i2c-tools on a Bananapi-F3 board, and basic I2C read/write operations have been confirmed to work. Signed-off-by: Troy Mitchell Reviewed-by: Alex Elder Signed-off-by: Andi Shyti Link: https://lore.kernel.org/r/20250319-k1-i2c-master-v8-2-013e2df2b78d@gmail.com

Merge tag 'i2c-for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

2024-11-21T21:19:29Z

Pull i2c updates from Wolfram Sang: "Core: - drivers can now use a GPIO as a side channel for SMBus Alerts using a generic binding - regular stuff like mem leak fix, Makefile maintenance... Host 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 host features: - i2c-cadence support for atomic transfers - Qualcomm CII 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 IDs for existing drivers: - Intel Panther Lake - S32G2/S32G3 SoCs - HJMC01 DesignWare ACPI HID - PIC64GX to Microchip Core - Qualcomm SDM670 to Qualcomm CCI New drivers: - AMD ASF - Realtek RTL I2C Controller at24 updates: - add support for the lockable page on ST M24256E" * tag 'i2c-for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (59 commits) docs: i2c: piix4: Add ACPI section i2c: Add driver for the RTL9300 I2C controller i2c: qcom-cci: Remove unused struct member cci_clk_rate dt-bindings: i2c: Add Realtek RTL I2C Controller i2c: busses: Use *-y instead of *-objs in Makefile i2c: imx: add support for S32G2/S32G3 SoCs dt-bindings: i2c: imx: add SoC specific compatible strings for S32G i2c: qcom-cci: Remove the unused variable cci_clk_rate i2c: Drop legacy muxing pseudo-drivers i2c: imx: prevent rescheduling in non dma mode i2c: imx: separate atomic, dma and non-dma use case i2c: imx: do not poll for bus busy in single master mode i2c: designware: Add a new ACPI HID for HJMC01 I2C controller i2c: qcom-geni: Keep comment why interrupts start disabled dt-bindings: i2c: microchip: corei2c: Add PIC64GX as compatible with driver i2c: designware: constify abort_sources i2c: Switch back to struct platform_driver::remove() i2c: qcom-geni: Support systems with 32MHz serial engine clock i2c: qcom-cci: Stop complaining about DT set clock rate dt-bindings: i2c: qcom-cci: Document SDM670 compatible ...

i2c: Add driver for the RTL9300 I2C controller

2024-11-17T10:58:57Z

Add support for the I2C controller on the RTL9300 SoC. There are two I2C controllers in the RTL9300 that are part of the Ethernet switch register block. Each of these controllers owns a SCL pin (GPIO8 for the fiorst I2C controller, GPIO17 for the second). There are 8 possible SDA pins (GPIO9-16) that can be assigned to either I2C controller. This relationship is represented in the device tree with a child node for each SDA line in use. This is based on the openwrt implementation[1] but has been significantly modified [1] - https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=target/linux/realtek/files-5.15/drivers/i2c/busses/i2c-rtl9300.c Signed-off-by: Chris Packham Reviewed-by: Andi Shyti Signed-off-by: Andi Shyti

i2c: busses: Use -y instead of -objs in Makefile

2024-11-17T10:58:56Z

*-objs suffix is reserved rather for (user-space) host programs while usually *-y suffix is used for kernel drivers (although *-objs works for that purpose for now). Let's correct the old usages of *-objs in Makefiles. While at it, fix an obvious typo in help section of the Kconfig. Signed-off-by: Andy Shevchenko Signed-off-by: Andi Shyti

i2c: Drop legacy muxing pseudo-drivers

2024-11-17T10:58:14Z

The i2c-amd756-s4882 and i2c-nforce2-s4985 muxing pseudo-drivers were written at a time when the i2c core did not support muxing. They are essentially board-specific hacks. If we had to add support for these boards today, we would implement it in a completely different way. These Tyan server boards are 19 years old by now, so I very much doubt any of these is still running today. So let's just drop this clumsy code. If anyone really still needs this support and complains, I'll rewrite it in a proper way on top of i2c-mux. This also fixes the following warnings: drivers/i2c/busses/i2c-amd756.c:286:20: warning: symbol 'amd756_smbus' was not declared. Should it be static? drivers/i2c/busses/i2c-nforce2.c:123:20: warning: symbol 'nforce2_smbus' was not declared. Should it be static? Signed-off-by: Jean Delvare Cc: Andi Shyti Cc: Nick Desaulniers Acked-by: Wolfram Sang Signed-off-by: Andi Shyti