[PATCH 5.14 772/849] net: dsa: mv88e6xxx: Dont support >1G speeds on 6191X on ports other than 10

[Greg Kroah-Hartman]

From: Marek Behún <kabel@xxxxxxxxxx>

[ Upstream commit dc2fc9f03c5c410d8f01c2206b3d529f80b13733 ]

Model 88E6191X only supports >1G speeds on port 10. Port 0 and 9 are
only 1G.

Fixes: de776d0d316f ("net: dsa: mv88e6xxx: add support for mv88e6393x family")
Signed-off-by: Marek Behún <kabel@xxxxxxxxxx>
Cc: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Link: https://lore.kernel.org/r/20211104171747.10509-1-kabel@xxxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index f5b2e5e87da43..55fe83b88737d 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -639,7 +639,10 @@ static void mv88e6393x_phylink_validate(struct mv88e6xxx_chip *chip, int port,
 					unsigned long *mask,
 					struct phylink_link_state *state)
 {
-	if (port == 0 || port == 9 || port == 10) {
+	bool is_6191x =
+		chip->info->prod_num == MV88E6XXX_PORT_SWITCH_ID_PROD_6191X;
+
+	if (((port == 0 || port == 9) && !is_6191x) || port == 10) {
 		phylink_set(mask, 10000baseT_Full);
 		phylink_set(mask, 10000baseKR_Full);
 		phylink_set(mask, 10000baseCR_Full);
-- 
2.33.0