enetc: Migrate to PHYLINK and PCS_LYNX

This is a methodical transition of the driver from phylib
to phylink, following the guidelines from sfp-phylink.rst.
The MAC register configurations based on interface mode
were moved from the probing path to the mac_config() hook.
MAC enable and disable commands (enabling Rx and Tx paths
at MAC level) were also extracted and assigned to their
corresponding phylink hooks.
As part of the migration to phylink, the serdes configuration
from the driver was offloaded to the PCS_LYNX module,
introduced in commit 0da4c3d393e4 ("net: phy: add Lynx PCS module"),
the PCS_LYNX module being a mandatory component required to
make the enetc driver work with phylink.

Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Reviewed-by: Ioana Ciornei <ioana.cionei@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.h b/drivers/net/ethernet/freescale/enetc/enetc_pf.h
index 0d0ee91282a5..263946c51e37 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_pf.h
+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.h
@@ -2,6 +2,7 @@
 /* Copyright 2017-2019 NXP */
 
 #include "enetc.h"
+#include <linux/pcs-lynx.h>
 
 #define ENETC_PF_NUM_RINGS	8
 
@@ -45,12 +46,15 @@ struct enetc_pf {
 
 	struct mii_bus *mdio; /* saved for cleanup */
 	struct mii_bus *imdio;
-	struct phy_device *pcs;
+	struct lynx_pcs *pcs;
 
-	struct device_node *phy_node;
 	phy_interface_t if_mode;
+	struct phylink_config phylink_config;
 };
 
+#define phylink_to_enetc_pf(config) \
+	container_of((config), struct enetc_pf, phylink_config)
+
 int enetc_msg_psi_init(struct enetc_pf *pf);
 void enetc_msg_psi_free(struct enetc_pf *pf);
 void enetc_msg_handle_rxmsg(struct enetc_pf *pf, int mbox_id, u16 *status);