linux/drivers/i3c
Jeremy Kerr 7dc2e0a875 i3c: Allow OF-alias-based persistent bus numbering
Parse the /aliases node to assign any fixed bus numbers, as is done with
the i2c subsystem. Numbering for non-aliased busses will start after the
highest fixed bus number.

This allows an alias node such as:

    aliases {
        i3c0 = &bus_a,
	i3c4 = &bus_b,
    };

to set the numbering for a set of i3c controllers:

    /* fixed-numbered bus, assigned "i3c-0" */
    bus_a: i3c-master {
    };

    /* another fixed-numbered bus, assigned "i3c-4" */
    bus_b: i3c-master {
    };

    /* dynamic-numbered bus, likely assigned "i3c-5" */
    bus_c: i3c-master {
    };

If no i3c device aliases are present, the numbering will stay as-is,
starting from 0.

Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20230405094149.1513209-1-jk@codeconstruct.com.au
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-04-28 08:19:01 +02:00
..
master i3c: ast2600: Add AST2600 platform-specific driver 2023-04-28 08:19:01 +02:00
device.c driver core: make struct device_type.uevent() take a const * 2023-01-27 13:45:36 +01:00
internals.h i3c: export SETDASA method 2022-12-11 21:25:58 +01:00
Kconfig i3c: Add core I3C infrastructure 2018-11-12 10:33:49 +01:00
Makefile i3c: Add core I3C infrastructure 2018-11-12 10:33:49 +01:00
master.c i3c: Allow OF-alias-based persistent bus numbering 2023-04-28 08:19:01 +02:00