kernel: backport generic phylink validate

Backport generic phylink validate series and make use of it for
mtk_eth_soc Ethernet driver as well as mt7530 DSA driver.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

1 files changed, 34 insertions, 0 deletions

diff --git a/target/linux/generic/backport-5.15/705-09-v5.19-net-dsa-mt7530-mark-as-non-legacy.patch b/target/linux/generic/backport-5.15/705-09-v5.19-net-dsa-mt7530-mark-as-non-legacy.patch
new file mode 100644
index 0000000000..849a9925a1
--- /dev/null
+++ b/target/linux/generic/backport-5.15/705-09-v5.19-net-dsa-mt7530-mark-as-non-legacy.patch
@@ -0,0 +1,34 @@
+From 5bc26de9bfaa6bb5539c09d4435dced98f429cfc Mon Sep 17 00:00:00 2001
+From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
+Date: Mon, 11 Apr 2022 10:46:37 +0100
+Subject: [PATCH 09/13] net: dsa: mt7530: mark as non-legacy
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The mt7530 driver does not make use of the speed, duplex, pause or
+advertisement in its phylink_mac_config() implementation, so it can be
+marked as a non-legacy driver.
+
+Tested-by: Marek Behún <kabel@kernel.org>
+Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
+Signed-off-by: Paolo Abeni <pabeni@redhat.com>
+---
+ drivers/net/dsa/mt7530.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/net/dsa/mt7530.c
++++ b/drivers/net/dsa/mt7530.c
+@@ -2893,6 +2893,12 @@ static void mt753x_phylink_get_caps(stru
+ 	config->mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE |
+ 				   MAC_10 | MAC_100 | MAC_1000FD;
+ 
++	/* This driver does not make use of the speed, duplex, pause or the
++	 * advertisement in its mac_config, so it is safe to mark this driver
++	 * as non-legacy.
++	 */
++	config->legacy_pre_march2020 = false;
++
+ 	priv->info->mac_port_get_caps(ds, port, config);
+ }
+