PMBus devices may integrate fans whose operation is configurable
over PMBus. This commit allows the driver to read and write the
fan control registers but does not model the operation of fans.
Reviewed-by: Stephen Longfield
Acked-by: Corey Minyard
Signed-off-by: Titus Rwantare
---
hw/i2c/pmbus
The probing process of the generic pmbus driver generates
faults to determine if functions are available. These faults
were not always cleared resulting in probe failures.
Reviewed-by: Patrick Venture
Signed-off-by: Titus Rwantare
---
hw/i2c/pmbus_device.c | 5 +
1 file changed, 5 insertion
The VOUT_MODE command is described in the PMBus Specification,
Part II, Ver 1.3 Section 8.3
VOUT_MODE has a three bit mode and 4 bit parameter, the three bit
mode determines whether voltages are formatted as uint16, uint16,
VID, and Direct modes. VID and Direct modes use the remaining 5 bits
to sc
VCAP is a register for devices with energy storage capacitors.
Reviewed-by: Benjamin Streb
Acked-by: Corey Minyard
Signed-off-by: Titus Rwantare
---
hw/i2c/pmbus_device.c | 8
include/hw/i2c/pmbus_device.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/hw/i2c/pmbus_devi
The ADM1266 is a cascadable super sequencer with margin control and
fault recording.
This commit adds basic support for its PMBus commands and models
the identification registers that can be modified in a firmware
update.
Reviewed-by: Hao Wu
Acked-by: Corey Minyard
Signed-off-by: Titus
The linux pmbus driver scans all possible pages and does not reset the
current page after the scan, making all future page reads fail as out of range
on devices with a single page.
This change resets out of range pages immediately on write.
Also added a qtest for simultaneous writes to all pages.
PMBus devices can send and receive variable length data using the
block read and write format, with the first byte in the payload
denoting the length.
This is mostly used for strings and on-device logs. Devices can
respond to a block read with an empty string.
Reviewed-by: Hao Wu
Acked-by: Corey
This patch series contains fixes and improvements to PMBus support in QEMU.
The following has been added:
- Support for block receive
- Support for devices with fans
- Support for the VCAP register for devices with onboard energy storage
- A bitfield struct for the vout mode register,
The ADM1266 can have string fields written by the driver, so
it's worth specifically testing.
Reviewed-by: Hao Wu
Acked-by: Corey Minyard
Signed-off-by: Titus Rwantare
---
tests/qtest/adm1266-test.c | 123 +
tests/qtest/meson.build| 1 +
2
