freebsd-dev/sys/modules/i2c
Vladimir Kondratyev 9b7938dcf3 iicbus(4): Add support for ACPI-based children enumeration
When iicbus is attached as child of Designware I2C controller it scans all
ACPI nodes for "I2C Serial Bus Connection Resource Descriptor" described
in section 19.6.57 of ACPI specs.
If such a descriptor is found, I2C child is added to iicbus, it's I2C
address, IRQ resource and ACPI handle are added to ivars. Existing
ACPI bus-hosted child is deleted afterwards.

The driver also installs so called "I2C address space handler" which is
disabled by default as nontested.
Set hw.iicbus.enable_acpi_space_handler loader tunable to 1 to enable it.

Reviewed by:		markj
MFC after:		2 weeks
Differential Revision:	https://reviews.freebsd.org/D22901
2020-03-09 20:31:38 +00:00
..
ads111x Include ofw_bus_if.h in SRCS only on systems configured with the FDT option. 2019-12-13 23:22:49 +00:00
controllers Remove sparc64 kernel support 2020-02-03 17:35:11 +00:00
cyapa
ds13rtc
ds1307
ds1672
ds3231
icee
if_ic
iic
iicbb
iicbus iicbus(4): Add support for ACPI-based children enumeration 2020-03-09 20:31:38 +00:00
iicsmb
isl
isl12xx
jedec_dimm
mux Add support for i2c bus mux hardware. 2020-01-02 17:51:49 +00:00
nxprtc
rtc8583
s35390a
smb
smbus
Makefile Add support for i2c bus mux hardware. 2020-01-02 17:51:49 +00:00
Makefile.inc