Commit 36169369 authored Sep 27, 2022 by Tharun Kumar P Committed by Wolfram Sang Sep 28, 2022

i2c: microchip: pci1xxxx: Add driver for I2C host controller in multifunction...

i2c: microchip: pci1xxxx: Add driver for I2C host controller in multifunction endpoint of pci1xxxx switch

Microchip pci1xxxx is an unmanaged PCIe3.1a Switch for Consumer,
Industrial and Automotive applications. This switch has multiple
downstream ports. In one of the Switch's Downstream port, there
is a multifunction endpoint for peripherals which includes an I2C
host controller. The I2C function in the endpoint operates at 100KHz,
400KHz and 1 MHz and has buffer depth of 128 bytes.
This patch provides the I2C controller driver for the I2C function
of the switch.

Signed-off-by: Tharun Kumar P <tharunkumar.pasumarthi@microchip.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

parent 09a7bab6

MAINTAINERS

+8 −0

Original line number	Diff line number	Diff line
		@@ -13435,6 +13435,14 @@ F: Documentation/devicetree/bindings/nvmem/microchip,sama7g5-otpc.yaml
		F: drivers/nvmem/microchip-otpc.c
		F: include/dt-bindings/nvmem/microchip,sama7g5-otpc.h

		MICROCHIP PCI1XXXX I2C DRIVER
		M: Tharun Kumar P <tharunkumar.pasumarthi@microchip.com>
		M: Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>
		M: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>
		L: linux-i2c@vger.kernel.org
		S: Maintained
		F: drivers/i2c/busses/i2c-mchp-pci1xxxx.c

		MICROCHIP PWM DRIVER
		M: Claudiu Beznea <claudiu.beznea@microchip.com>
		L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)

drivers/i2c/busses/Kconfig

+10 −0

Original line number	Diff line number	Diff line
		@@ -1267,6 +1267,16 @@ config I2C_PARPORT
		This support is also available as a module. If so, the module
		will be called i2c-parport.

		config I2C_PCI1XXXX
		tristate "PCI1XXXX I2C Host Adapter"
		depends on PCI
		help
		If you say yes to this option, support will be included for
		Microchip PCI1XXXX's I2C interface.

		This driver can also be built as a module. If so, the module will
		be called i2c-mchp-pci1xxxx.

		config I2C_ROBOTFUZZ_OSIF
		tristate "RobotFuzz Open Source InterFace USB adapter"
		depends on USB

drivers/i2c/busses/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -133,6 +133,7 @@ obj-$(CONFIG_I2C_DIOLAN_U2C) += i2c-diolan-u2c.o
		obj-$(CONFIG_I2C_DLN2) += i2c-dln2.o
		obj-$(CONFIG_I2C_CP2615) += i2c-cp2615.o
		obj-$(CONFIG_I2C_PARPORT) += i2c-parport.o
		obj-$(CONFIG_I2C_PCI1XXXX) += i2c-mchp-pci1xxxx.o
		obj-$(CONFIG_I2C_ROBOTFUZZ_OSIF) += i2c-robotfuzz-osif.o
		obj-$(CONFIG_I2C_TAOS_EVM) += i2c-taos-evm.o
		obj-$(CONFIG_I2C_TINY_USB) += i2c-tiny-usb.o

drivers/i2c/busses/i2c-mchp-pci1xxxx.c

0 → 100644

+1210 −0

File added.

Preview size limit exceeded, changes collapsed.