xemu/hw/i2c/Kconfig
Peter Maydell b5bf5a53d1 Kconfig: Add I2C_DEVICES device group
Currently there is no way for a board model's Kconfig stanza to
say "I have an i2c bus which the user can plug an i2c device into,
build all the free-standing i2c devices". The Kconfig mechanism
for this is the "device group". Add an I2C_DEVICES group along
the same lines as the existing PCI_DEVICES. Simple free-standing
i2c devices which a user might plausibly want to be able to
plug in on the QEMU commandline should have
   default y if I2C_DEVICES
and board models which have an i2c bus that is user-accessible
should use
   imply I2C_DEVICES
to cause those pluggable devices to be built.

In this commit we mark only a fairly conservative set of i2c devices
as belonging to the I2C_DEVICES group: the simple sensors and RTCs
(not including PMBus devices or devices which need GPIO lines to be
connected).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Hao Wu <wuhaotsh@google.com>
Message-id: 20220208155911.3408455-2-peter.maydell@linaro.org
2022-02-21 13:30:20 +00:00

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config I2C
bool
config I2C_DEVICES
# Device group for i2c devices which can reasonably be user-plugged
# to any board's i2c bus
bool
config SMBUS
bool
select I2C
config SMBUS_EEPROM
bool
select SMBUS
config VERSATILE_I2C
bool
select BITBANG_I2C
config ACPI_SMBUS
bool
select SMBUS
config BITBANG_I2C
bool
select I2C
config IMX_I2C
bool
select I2C
config MPC_I2C
bool
select I2C
config PCA954X
bool
select I2C
config PMBUS
bool
select SMBUS