linux-kernel - [PATCH net-next v5 12/17] net: pse-pd: Add support for setup_pi

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Message-Id: <20240227-feature_poe-v5-12-28f0aa48246d@bootlin.com>
Date: Tue, 27 Feb 2024 15:42:54 +0100
From: Kory Maincent <kory.maincent@...tlin.com>
To: "David S. Miller" <davem@...emloft.net>, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>, Jonathan Corbet <corbet@....net>, 
 Luis Chamberlain <mcgrof@...nel.org>, Russ Weight <russ.weight@...ux.dev>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Rafael J. Wysocki" <rafael@...nel.org>, Rob Herring <robh+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Oleksij Rempel <o.rempel@...gutronix.de>, Mark Brown <broonie@...nel.org>, 
 Frank Rowand <frowand.list@...il.com>, Andrew Lunn <andrew@...n.ch>, 
 Heiner Kallweit <hkallweit1@...il.com>, 
 Russell King <linux@...linux.org.uk>
Cc: Thomas Petazzoni <thomas.petazzoni@...tlin.com>, netdev@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org, 
 devicetree@...r.kernel.org, Dent Project <dentproject@...uxfoundation.org>, 
 Kory Maincent <kory.maincent@...tlin.com>
Subject: [PATCH net-next v5 12/17] net: pse-pd: Add support for
 setup_pi_matrix callback

Implement setup_pi_matrix callback to configure the PSE PI matrix. This
functionality is invoked before registering the PSE and following the core
parsing of the pse_pis devicetree subnode.

This patch is sponsored by Dent Project <dentproject@...uxfoundation.org>.

Signed-off-by: Kory Maincent <kory.maincent@...tlin.com>
---

Changes in v3:
- New patch
---
 drivers/net/pse-pd/pse_core.c | 6 ++++++
 include/linux/pse-pd/pse.h    | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/drivers/net/pse-pd/pse_core.c b/drivers/net/pse-pd/pse_core.c
index 9124eb3d6492..a2eb9a424668 100644
--- a/drivers/net/pse-pd/pse_core.c
+++ b/drivers/net/pse-pd/pse_core.c
@@ -178,6 +178,12 @@ int pse_controller_register(struct pse_controller_dev *pcdev)
 	if (ret)
 		return ret;

+	if (pcdev->ops->setup_pi_matrix) {
+		ret = pcdev->ops->setup_pi_matrix(pcdev);
+		if (ret)
+			return ret;
+	}
+
 	mutex_lock(&pse_list_mutex);
 	list_add(&pcdev->list, &pse_controller_list);
 	mutex_unlock(&pse_list_mutex);
diff --git a/include/linux/pse-pd/pse.h b/include/linux/pse-pd/pse.h
index 01b3b9adfe2a..522115cc6cef 100644
--- a/include/linux/pse-pd/pse.h
+++ b/include/linux/pse-pd/pse.h
@@ -49,6 +49,7 @@ struct pse_control_status {
  *
  * @ethtool_get_status: get PSE control status for ethtool interface
  * @ethtool_set_config: set PSE control configuration over ethtool interface
+ * @setup_pi_matrix: setup PI matrix of the PSE controller
  */
 struct pse_controller_ops {
 	int (*ethtool_get_status)(struct pse_controller_dev *pcdev,
@@ -57,6 +58,7 @@ struct pse_controller_ops {
 	int (*ethtool_set_config)(struct pse_controller_dev *pcdev,
 		unsigned long id, struct netlink_ext_ack *extack,
 		const struct pse_control_config *config);
+	int (*setup_pi_matrix)(struct pse_controller_dev *pcdev);
 };

 struct module;

-- 
2.25.1