net: dsa: mt7530: fix trapping frames on non-MT7621 SoC MT7530 switch

[ Upstream commit 4ae90f90e4909e3014e2dc6a0627964617a7b824 ]

All MT7530 switch IP variants share the MT7530_MFC register, but the
current driver only writes it for the switch variant that is integrated in
the MT7621 SoC. Modify the code to include all MT7530 derivatives.

Fixes: b8f126a8d543 ("net-next: dsa: add dsa support for Mediatek MT7530 switch")
Suggested-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 855220c..886dc7d 100644 (file)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1020,7 +1020,7 @@ mt753x_cpu_port_enable(struct dsa_switch *ds, int port)
                   UNU_FFP(BIT(port)));
 
        /* Set CPU port number */
-       if (priv->id == ID_MT7621)
+       if (priv->id == ID_MT7530 || priv->id == ID_MT7621)
                mt7530_rmw(priv, MT7530_MFC, CPU_MASK, CPU_EN | CPU_PORT(port));
 
        /* CPU port gets connected to all user ports of