From: Patrick Venture <venture@google.com>
To: cminyard@mvista.com, wuhaotsh@google.com, hskinnemoen@google.com,
f4bug@amsat.org
Cc: qemu-arm@nongnu.org, qemu-devel@nongnu.org,
Patrick Venture <venture@google.com>
Subject: [PATCH v4 0/4] hw/i2c: Adds pca954x i2c mux switch device
Date: Mon, 12 Apr 2021 12:45:18 -0700 [thread overview]
Message-ID: <20210412194522.664594-1-venture@google.com> (raw)
The i2c mux device pca954x implements two devices:
- the pca9546 and pca9548.
v4:
- Fixed up bug where the i2c_scan_bus wasn't parameterizing the
current_devs list.
- Minor consistency changes in the i2c mux pca954x.
v3:
- fixup comment with missing end parenthesis.
- removed superfluous object cast.
v2:
- the core i2c bus now calls a match method on each i2c child, which
by default will only check for a match against itself.
- the pca954x device overrides the i2c device match method to search
the children for each of its buses that are active.
- the pca954x device now owns an i2c bus for each channel, allowing
the normal device model to attach devices to the channels.
Patrick Venture (4):
hw/i2c: name I2CNode list in I2CBus
hw/i2c: add match method for device search
hw/i2c: move search to i2c_scan_bus method
hw/i2c: add pca954x i2c-mux switch
MAINTAINERS | 6 +
hw/i2c/Kconfig | 4 +
hw/i2c/core.c | 55 ++++--
hw/i2c/i2c_mux_pca954x.c | 290 +++++++++++++++++++++++++++++++
hw/i2c/meson.build | 1 +
hw/i2c/trace-events | 5 +
include/hw/i2c/i2c.h | 17 +-
include/hw/i2c/i2c_mux_pca954x.h | 19 ++
8 files changed, 383 insertions(+), 14 deletions(-)
create mode 100644 hw/i2c/i2c_mux_pca954x.c
create mode 100644 include/hw/i2c/i2c_mux_pca954x.h
--
2.31.1.295.g9ea45b61b8-goog
next reply other threads:[~2021-04-12 19:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-12 19:45 Patrick Venture [this message]
2021-04-12 19:45 ` [PATCH v4 1/4] hw/i2c: name I2CNode list in I2CBus Patrick Venture
2021-04-12 19:45 ` [PATCH v4 2/4] hw/i2c: add match method for device search Patrick Venture
2021-04-12 19:45 ` [PATCH v4 3/4] hw/i2c: move search to i2c_scan_bus method Patrick Venture
2021-04-12 19:45 ` [PATCH v4 4/4] hw/i2c: add pca954x i2c-mux switch Patrick Venture
2021-04-15 12:12 ` [PATCH v4 0/4] hw/i2c: Adds pca954x i2c mux switch device Corey Minyard
2021-04-15 17:14 ` Patrick Venture
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