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hw/i2c: pmbus: immediately clear faults on request

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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 <venture@google.com>
Signed-off-by: Titus Rwantare <titusr@google.com>
Message-ID: <20231023-staging-pmbus-v3-v4-7-07a8cb7cd20a@google.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Titus Rwantare 2023-10-23 23:46:46 +00:00 • committed by Philippe Mathieu-Daudé
parent 5861f5abf4
commit 84db503e7c
1 changed files with 5 additions and 0 deletions
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5
hw/i2c/pmbus_device.c
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@ -1244,6 +1244,11 @@ static int pmbus_write_data(SMBusDevice *smd, uint8_t *buf, uint8_t len)
pmdev->in_buf = buf;
pmdev->code = buf[0]; /* PMBus command code */
if (pmdev->code == PMBUS_CLEAR_FAULTS) {
pmbus_clear_faults(pmdev);
}
if (len == 1) { /* Single length writes are command codes only */
return 0;
}