Commit b5b5b320 authored by Khalil Blaiech's avatar Khalil Blaiech Committed by Wolfram Sang
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i2c: mlxbf: I2C SMBus driver for Mellanox BlueField SoC 



Add BlueField I2C driver to offer master and slave support for
Mellanox BlueField SoCs. The driver implements an SMBus adapter
and interfaces to multiple busses that can be probed using both
ACPI and Device Tree infrastructures.

The driver supports several SMBus operations to transfer data
back and forth from/to various I2C devices. It is mainly intended
to be consumed by userspace tools and utilities, such as i2c-tools
and decode-dimms to collect memory module information.

On the other hand, the driver has a slave function to support,
among others, an IPMB interface that requires both master and
slave functions to handle transfers between the BlueField SoC
and a board management controllers (e.g., BMC).

Signed-off-by: default avatarKhalil Blaiech <kblaiech@mellanox.com>
Reviewed-by: default avatarVadim Pasternak <vadimp@mellanox.com>
Signed-off-by: default avatarWolfram Sang <wsa@kernel.org>
parent d9becc53

MAINTAINERS

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@@ -11071,6 +11071,12 @@ W: http://www.melfas.com 
F:	Documentation/devicetree/bindings/input/touchscreen/melfas_mip4.txt

F:	drivers/input/touchscreen/melfas_mip4.c













MELLANOX BLUEFIELD I2C DRIVER













M:	Khalil Blaiech <kblaiech@mellanox.com>













L:	linux-i2c@vger.kernel.org













S:	Supported













F:	drivers/i2c/busses/i2c-mlxbf.c



























MELLANOX ETHERNET DRIVER (mlx4_en)















M:	Tariq Toukan <tariqt@nvidia.com>















L:	netdev@vger.kernel.org

































drivers/i2c/busses/Kconfig



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@@ -730,6 +730,19 @@ config I2C_LPC2K













	  This driver can also be built as a module.  If so, the module















	  will be called i2c-lpc2k.





























config I2C_MLXBF













        tristate "Mellanox BlueField I2C controller"













        depends on ARM64













        help













          Enabling this option will add I2C SMBus support for Mellanox BlueField













          system.



























          This driver can also be built as a module. If so, the module will be













          called i2c-mlxbf.



























          This driver implements an I2C SMBus host controller and enables both













          master and slave functions.





























config I2C_MESON















	tristate "Amlogic Meson I2C controller"















	depends on ARCH_MESON || COMPILE_TEST

































drivers/i2c/busses/Makefile



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@@ -140,6 +140,7 @@ obj-$(CONFIG_I2C_BRCMSTB)	+= i2c-brcmstb.o













obj-$(CONFIG_I2C_CROS_EC_TUNNEL)	+= i2c-cros-ec-tunnel.o















obj-$(CONFIG_I2C_ELEKTOR)	+= i2c-elektor.o















obj-$(CONFIG_I2C_ICY)		+= i2c-icy.o













obj-$(CONFIG_I2C_MLXBF)		+= i2c-mlxbf.o















obj-$(CONFIG_I2C_MLXCPLD)	+= i2c-mlxcpld.o















obj-$(CONFIG_I2C_OPAL)		+= i2c-opal.o















obj-$(CONFIG_I2C_PCA_ISA)	+= i2c-pca-isa.o

































drivers/i2c/busses/i2c-mlxbf.c
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