openwrt/package/kernel/qca-ssdk/patches/0004-SSDK-set-OF-node-for-the-SFP-PHY.patch

From 00d3c54c611143f57b632e4cd3b42b0a94d82307 Mon Sep 17 00:00:00 2001
From: Robert Marko <robimarko@gmail.com>
Date: Sun, 25 Jun 2023 11:24:09 +0200
Subject: [PATCH 3/3] SSDK: set OF node for the SFP PHY

Currently, SSDK is creating a fake SFP PHY which has no OF node populated,
thus making it impossible to pass it to NSS-DP so port can actually work.

We eliminated QCA-s connecting of the PHY by manually creating a string
and then matching by name and instead only support passing the PHY as
phandle via phy-handle.

So, lets just use the switch port node to which the SFP is connected to
anyway and set it as the PHY device OF node so we can pass it to NSS-DP.

Signed-off-by: Robert Marko <robimarko@gmail.com>
---
 include/hsl/phy/hsl_phy.h |  6 ++++++
 src/hsl/phy/hsl_phy.c     | 14 ++++++++++++++
 src/hsl/phy/sfp_phy.c     |  7 +++++++
 src/init/ssdk_dts.c       |  7 +++++++
 4 files changed, 34 insertions(+)

--- a/include/hsl/phy/hsl_phy.h
+++ b/include/hsl/phy/hsl_phy.h
@@ -584,6 +584,7 @@ typedef struct {
 	a_bool_t port_link_status[SW_MAX_NR_PORT];
 	a_uint32_t port_mode[SW_MAX_NR_PORT];
 	a_uint32_t combo_phy_type[SW_MAX_NR_PORT];
+	struct device_node *port_node[SW_MAX_NR_PORT];
 } phy_info_t;
 /*qca808x_end*/
 #define MALIBU5PORT_PHY         0x004DD0B1
@@ -1038,3 +1039,8 @@ hsl_phydev_eee_update(a_uint32_t dev_id,
 #endif				/* __cplusplus */
 #endif				/* _HSL_PHY_H_ */
 /*qca808x_end*/
+
+struct device_node*
+hsl_port_node_get(a_uint32_t dev_id, a_uint32_t port_id);
+void
+hsl_port_node_set(a_uint32_t dev_id, a_uint32_t port_id, struct device_node *port_node);
--- a/src/hsl/phy/hsl_phy.c
+++ b/src/hsl/phy/hsl_phy.c
@@ -3433,3 +3433,17 @@ hsl_phy_modify_debug(a_uint32_t dev_id,
 	return rv;
 }
 /*qca808x_end*/
+
+struct device_node*
+hsl_port_node_get(a_uint32_t dev_id, a_uint32_t port_id)
+{
+	return phy_info[dev_id]->port_node[port_id];
+}
+
+void
+hsl_port_node_set(a_uint32_t dev_id, a_uint32_t port_id, struct device_node *port_node)
+{
+	phy_info[dev_id]->port_node[port_id] = port_node;
+
+	return;
+}
--- a/src/hsl/phy/sfp_phy.c
+++ b/src/hsl/phy/sfp_phy.c
@@ -335,6 +335,13 @@ int sfp_phy_device_setup(a_uint32_t dev_
 	phy_device_register(phydev);
 
 	phydev->priv = priv;
+	/*
+	 * Set the PHY OF node in order to be able to later connect the
+	 * fake SFP PHY by passing it as a phandle in phy-handle.
+	 */
+	phydev->mdio.dev.of_node = hsl_port_node_get(dev_id, port);
+	if (!phydev->mdio.dev.of_node)
+		return SW_NOT_FOUND;
 #if defined(IN_PHY_I2C_MODE)
 	if (hsl_port_phy_access_type_get(dev_id, port) == PHY_I2C_ACCESS) {
 		if(phydev->drv)
--- a/src/init/ssdk_dts.c
+++ b/src/init/ssdk_dts.c
@@ -784,6 +784,13 @@ static sw_error_t ssdk_dt_parse_phy_info
 			}
 		}
 		hsl_port_feature_set(dev_id, port_id, phy_features | PHY_F_INIT);
+
+		/*
+		* Save the port node so it can be passed as the
+		* fake SFP PHY OF node in order to be able to
+		* pass the SFP phy via phy-handle
+		*/
+		hsl_port_node_set(dev_id, port_id, port_node);
 	}
 
 	return rv;