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Date:   Tue, 22 Sep 2020 18:43:02 +0800
From:   Xiaoliang Yang <xiaoliang.yang_1@....com>
To:     xiaoliang.yang_1@....com, davem@...emloft.net,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        allan.nielsen@...rochip.com, joergen.andreasen@...rochip.com,
        UNGLinuxDriver@...rochip.com, alexandru.marginean@....com,
        po.liu@....com, claudiu.manoil@....com, vladimir.oltean@....com,
        leoyang.li@....com
Subject: [net-next] net: dsa: felix: convert TAS link speed based on phylink speed

state->speed holds a value of 10, 100, 1000 or 2500, but
QSYS_TAG_CONFIG_LINK_SPEED expects a value of 0, 1, 2, 3. So convert the
speed to a proper value.

Fixes: de143c0e274b ("net: dsa: felix: Configure Time-Aware Scheduler via
taprio offload")

Signed-off-by: Xiaoliang Yang <xiaoliang.yang_1@....com>
---
 drivers/net/dsa/ocelot/felix_vsc9959.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c
index 79ddc4ba27a3..f584eababd0a 100644
--- a/drivers/net/dsa/ocelot/felix_vsc9959.c
+++ b/drivers/net/dsa/ocelot/felix_vsc9959.c
@@ -973,8 +973,28 @@ static void vsc9959_mdio_bus_free(struct ocelot *ocelot)
 static void vsc9959_sched_speed_set(struct ocelot *ocelot, int port,
 				    u32 speed)
 {
+	u8 tas_speed;
+
+	switch (speed) {
+	case SPEED_10:
+		tas_speed = OCELOT_SPEED_10;
+		break;
+	case SPEED_100:
+		tas_speed = OCELOT_SPEED_100;
+		break;
+	case SPEED_1000:
+		tas_speed = OCELOT_SPEED_1000;
+		break;
+	case SPEED_2500:
+		tas_speed = OCELOT_SPEED_2500;
+		break;
+	default:
+		tas_speed = OCELOT_SPEED_1000;
+		break;
+	}
+
 	ocelot_rmw_rix(ocelot,
-		       QSYS_TAG_CONFIG_LINK_SPEED(speed),
+		       QSYS_TAG_CONFIG_LINK_SPEED(tas_speed),
 		       QSYS_TAG_CONFIG_LINK_SPEED_M,
 		       QSYS_TAG_CONFIG, port);
 }
-- 
2.17.1

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