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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
30 lines
344 B
Plaintext
30 lines
344 B
Plaintext
config DS1338
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bool
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depends on I2C
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default y if I2C_DEVICES
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config M41T80
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bool
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depends on I2C
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default y if I2C_DEVICES
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config M48T59
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bool
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config PL031
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bool
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config TWL92230
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bool
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depends on I2C
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config MC146818RTC
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depends on ISA_BUS
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bool
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config SUN4V_RTC
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bool
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config GOLDFISH_RTC
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bool
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