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Peter Maydell 499063d00a Add a bus multiplexer device 
This patch set adds a bus multiplexer and the necessary infrastructure
 in the I2C code to allow it to work.
 
 These are common on systems with lots of I2C devices, like an IPMI BMC.
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Merge remote-tracking branch 'remotes/cminyard/tags/for-qemu-6.1-v1' into staging

Add a bus multiplexer device

This patch set adds a bus multiplexer and the necessary infrastructure
in the I2C code to allow it to work.

These are common on systems with lots of I2C devices, like an IPMI BMC.

# gpg: Signature made Thu 13 May 2021 22:48:07 BST
# gpg:                using RSA key FD0D5CE67CE0F59A6688268661F38C90919BFF81
# gpg: Good signature from "Corey Minyard <cminyard@mvista.com>" [unknown]
# gpg:                 aka "Corey Minyard <minyard@acm.org>" [unknown]
# gpg:                 aka "Corey Minyard <corey@minyard.net>" [unknown]
# gpg:                 aka "Corey Minyard <minyard@mvista.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: FD0D 5CE6 7CE0 F59A 6688  2686 61F3 8C90 919B FF81

* remotes/cminyard/tags/for-qemu-6.1-v1:
  hw/i2c: add pca954x i2c-mux switch
  hw/i2c: move search to i2c_scan_bus method
  hw/i2c: add match method for device search
  hw/i2c: name I2CNode list in I2CBus

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-14 14:26:23 +01:00
..
9pfs hw/9pfs/9p-synth: Replaced qemu_mutex_lock with QEMU_LOCK_GUARD 2021-03-16 11:41:49 +01:00
acpi Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
adc clock: Add ClockEvent parameter to callbacks 2021-03-08 17:20:01 +00:00
alpha Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
arm hw/arm/xlnx: Fix PHY address for xilinx-zynq-a9 2021-05-10 17:21:54 +01:00
audio Drop the deprecated lm32 target 2021-05-12 18:20:25 +02:00
avr Do not include hw/boards.h if it's not really necessary 2021-05-02 17:24:51 +02:00
block Parallel NOR Flash patches queue 2021-05-13 14:45:38 +01:00
char Miscellaneous patches for 2021-05-12 2021-05-13 20:13:24 +01:00
core numa: Make all callbacks of ram block notifiers optional 2021-05-13 18:21:13 +01:00
cpu cpu/core: Fix "help" of CPU core device types 2021-04-09 16:05:16 -04:00
cris Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
display Drop the deprecated lm32 target 2021-05-12 18:20:25 +02:00
dma Drop the deprecated unicore32 target 2021-05-12 18:20:52 +02:00
gpio Drop the deprecated unicore32 target 2021-05-12 18:20:52 +02:00
hppa Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
hyperv qdev: Move softmmu properties to qdev-properties-system.h 2020-12-18 15:20:17 -05:00
i2c Add a bus multiplexer device 2021-05-14 14:26:23 +01:00
i386 numa: Teach ram block notifiers about resizeable ram blocks 2021-05-13 18:21:13 +01:00
ide hw: Do not include hw/sysbus.h if it is not necessary 2021-05-02 17:24:50 +02:00
input Drop the deprecated lm32 target 2021-05-12 18:20:25 +02:00
intc Miscellaneous patches for 2021-05-12 2021-05-13 20:13:24 +01:00
ipack Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
ipmi hw: Do not include qemu/log.h if it is not necessary 2021-05-02 17:24:50 +02:00
isa ppc patch queue 2021-05-04 2021-05-05 20:29:14 +01:00
m68k Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
mem Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
microblaze Do not include sysemu/sysemu.h if it's not really necessary 2021-05-02 17:24:50 +02:00
mips Trivial patches pull request 20210503 2021-05-05 13:52:00 +01:00
misc Drop the deprecated unicore32 target 2021-05-12 18:20:52 +02:00
net Drop the deprecated lm32 target 2021-05-12 18:20:25 +02:00
nios2 Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
nubus hw: Do not include hw/sysbus.h if it is not necessary 2021-05-02 17:24:50 +02:00
nvram Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
openrisc Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
pci Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
pci-bridge Kconfig: Compile PXB for ARM_VIRT 2021-01-17 06:42:54 -05:00
pci-host ppc patch queue 2021-05-04 2021-05-05 20:29:14 +01:00
pcmcia hw/pcmcia: Do not register PCMCIA type if not required 2021-05-02 17:24:50 +02:00
ppc ppc patch queue 2021-05-04 2021-05-05 20:29:14 +01:00
rdma pvrdma: wean code off pvrdma_ring.h kernel header 2021-03-15 16:41:22 +08:00
remote Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
riscv hw/riscv: Fix OT IBEX reset vector 2021-05-11 20:02:07 +10:00
rtc mc146818rtc: put it into the 'misc' category 2021-05-02 17:24:51 +02:00
rx hw/rx/rx-gdbsim: Do not accept invalid memory size 2021-05-03 10:07:41 +02:00
s390x Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
scsi Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
sd Drop the deprecated lm32 target 2021-05-12 18:20:25 +02:00
sh4 Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
smbios i386: do not use ram_size global 2020-12-10 12:15:08 -05:00
sparc qemu-sparc queue 2021-05-10 12:34:05 +01:00
sparc64 qemu-sparc queue 2021-05-10 12:34:05 +01:00
ssi Trivial patches pull request 20210503 2021-05-05 13:52:00 +01:00
timer Drop the deprecated unicore32 target 2021-05-12 18:20:52 +02:00
tpm Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
tricore Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
usb Drop the deprecated lm32 target 2021-05-12 18:20:25 +02:00
vfio Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
virtio migrate/ram: remove "ram_bulk_stage" and "fpo_enabled" 2021-05-13 18:21:13 +01:00
watchdog clock: Add ClockEvent parameter to callbacks 2021-03-08 17:20:01 +00:00
xen Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
xenpv meson: convert hw/arch* 2020-08-21 06:30:33 -04:00
xtensa Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
Kconfig Drop the deprecated unicore32 target 2021-05-12 18:20:52 +02:00
meson.build Drop the deprecated unicore32 target 2021-05-12 18:20:52 +02:00