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Subject[PATCH net 2/2] net: dsa: mt7530: fix port mirroring for MT7988 SoC switch
From: Arınç ÜNAL <arinc.unal@arinc9.com>

The "MT7988A Wi-Fi 7 Generation Router Platform: Datasheet (Open Version)
v0.1" document shows bits 16 to 18 as the MIRROR_PORT field of the CPU
forward control register. Currently, the MT7530 DSA subdriver configures
bits 0 to 2 of the CPU forward control register which breaks the port
mirroring feature for the MT7988 SoC switch.

Fix this by using the MT7531_MIRROR_PORT_GET() and MT7531_MIRROR_PORT_SET()
macros which utilise the correct bits.

Fixes: 110c18bfed41 ("net: dsa: mt7530: introduce driver for MT7988 built-in switch")
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
---
drivers/net/dsa/mt7530.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index b84e1845fa02..8090390edaf9 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1883,14 +1883,16 @@ mt7530_port_vlan_del(struct dsa_switch *ds, int port,

static int mt753x_mirror_port_get(unsigned int id, u32 val)
{
- return (id == ID_MT7531) ? MT7531_MIRROR_PORT_GET(val) :
- MIRROR_PORT(val);
+ return (id == ID_MT7531 || id == ID_MT7988) ?
+ MT7531_MIRROR_PORT_GET(val) :
+ MIRROR_PORT(val);
}

static int mt753x_mirror_port_set(unsigned int id, u32 val)
{
- return (id == ID_MT7531) ? MT7531_MIRROR_PORT_SET(val) :
- MIRROR_PORT(val);
+ return (id == ID_MT7531 || id == ID_MT7988) ?
+ MT7531_MIRROR_PORT_SET(val) :
+ MIRROR_PORT(val);
}

static int mt753x_port_mirror_add(struct dsa_switch *ds, int port,
--
2.40.1



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