i2c: i2c-mux-gpio: Enable this driver in ACPI land

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Enable i2c-mux-gpio devices to be defined via ACPI. The idle-state
property translates directly to a fwnode_property_*() call. The child
reg property translates naturally into _ADR in ACPI.

The i2c-parent binding is a relic from the days when the bindings
dictated that all direct children of an I2C controller had to be I2C
devices. These days that's no longer required. The i2c-mux can sit as a
direct child of its parent controller, which is where it makes the most
sense from a hardware description perspective. For the ACPI
implementation we'll assume that's always how the i2c-mux-gpio is
instantiated.

Signed-off-by: Evan Green <evgreen@chromium.org>
Acked-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

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Evan Green 2020-11-18 15:40:25 -08:00 • committed by Wolfram Sang

parent 19eb29b05c

commit 98b2b712bc

1 changed files with 79 additions and 28 deletions

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drivers/i2c/muxes/i2c-mux-gpio.c

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