realtek: 6.6: copy patch net-phy-sfp-re-probe-modules-on-DEV_UP-event

Copy the patch file to 6.6. Reorder it in the 7xx range.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>

target/linux/realtek/patches-6.6/710-net-phy-sfp-re-probe-modules-on-DEV_UP-event.patch

@@ -0,0 +1,26 @@
+From a381ac0aa281fdb0b41a39d8a2bc08fd88f6db92 Mon Sep 17 00:00:00 2001
+From: Antoine Tenart <antoine.tenart@bootlin.com>
+Date: Tue, 25 Feb 2020 16:32:37 +0100
+Subject: [PATCH 1/3] net: phy: sfp: re-probe modules on DEV_UP event
+
+Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
+---
+ drivers/net/phy/sfp.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/drivers/net/phy/sfp.c
++++ b/drivers/net/phy/sfp.c
+@@ -2160,6 +2160,13 @@ static void sfp_sm_module(struct sfp *sf
+ 		return;
+ 	}
+ 
++	/* Re-probe the SFP modules when an interface is brought up, as the MAC
++	 * do not report its link status (This means Phylink wouldn't be
++	 * triggered if the PHY had a link before a MAC is brought up).
++	 */
++	if (event == SFP_E_DEV_UP && sfp->sm_mod_state == SFP_MOD_PRESENT)
++		sfp_sm_mod_next(sfp, SFP_MOD_PROBE, T_SERIAL);
++
+ 	switch (sfp->sm_mod_state) {
+ 	default:
+ 		if (event == SFP_E_INSERT) {