diff options
| author | Kory Maincent (Dent Project) <kory.maincent@bootlin.com> | 2025-10-13 16:05:33 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-10-15 17:50:29 -0700 |
| commit | 8f3d044b34fe99b894046edb84605456195cabc0 (patch) | |
| tree | 272a9d277386ba08ef152f5a17759b4e3d7f51d8 /tools/perf/scripts/python | |
| parent | 6fa1f8b64a47edd7d8420d8fd1008507aee2853e (diff) | |
net: pse-pd: pd692x0: Preserve PSE configuration across reboots
Detect when PSE hardware is already configured (user byte == 42) and
skip hardware initialization to prevent power interruption to connected
devices during system reboots.
Previously, the driver would always reconfigure the PSE hardware on
probe, causing a port matrix reflash that resulted in temporary power
loss to all connected devices. This change maintains power continuity
by preserving existing configuration when the PSE has been previously
initialized.
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251013-feature_pd692x0_reboot_keep_conf-v2-3-68ab082a93dd@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions