linux-kernel - [PATCH net-next v2 0/3] Preserve PSE PD692x0 configuration across reboots

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Message-Id: <20251013-feature_pd692x0_reboot_keep_conf-v2-0-68ab082a93dd@bootlin.com>
Date: Mon, 13 Oct 2025 16:05:30 +0200
From: Kory Maincent <kory.maincent@...tlin.com>
To: Oleksij Rempel <o.rempel@...gutronix.de>, 
 Andrew Lunn <andrew+netdev@...n.ch>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
Cc: Thomas Petazzoni <thomas.petazzoni@...tlin.com>, kernel@...gutronix.de, 
 Dent Project <dentproject@...uxfoundation.org>, netdev@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Kory Maincent <kory.maincent@...tlin.com>
Subject: [PATCH net-next v2 0/3] Preserve PSE PD692x0 configuration across
 reboots

From: Kory Maincent (Dent Project) <kory.maincent@...tlin.com>

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@...tlin.com>
---
Changes in v2:
- Resend the series as I carelessly send it during the merge window.
- Link to v1: https://lore.kernel.org/r/20250930-feature_pd692x0_reboot_keep_conf-v1-0-620dce7ee8a2@bootlin.com

---
Kory Maincent (3):
      net: pse-pd: pd692x0: Replace __free macro with explicit kfree calls
      net: pse-pd: pd692x0: Separate configuration parsing from hardware setup
      net: pse-pd: pd692x0: Preserve PSE configuration across reboots

 drivers/net/pse-pd/pd692x0.c | 155 +++++++++++++++++++++++++++++++------------
 1 file changed, 112 insertions(+), 43 deletions(-)
---
base-commit: 7d5145eba189b35f64c7e7c03a613941fede2cd7
change-id: 20250929-feature_pd692x0_reboot_keep_conf-69a996467491

Best regards,
-- 
Köry Maincent, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com