[PATCH net-next v5 12/17] net: pse-pd: Add support for setup_pi_matrix callback

[Kory Maincent <kory.maincent@bootlin.com>]

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@linuxfoundation.org>.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.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