The bit 23, CM TBT3 Not Supported (CNS), in ROUTER_CS_5 indicates
whether a USB4 Connection Manager is TBT3-Compatible and should be:
0b for TBT3-Compatible
1b for Not TBT3-Compatible
Signed-off-by: Mohammad Rahimi <rahimi.mhmmd@xxxxxxxxx>
---
drivers/thunderbolt/tb_regs.h | 2 +-
drivers/thunderbolt/usb4.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/thunderbolt/tb_regs.h b/drivers/thunderbolt/tb_regs.h
index 87e4795275fe..6f798f6a2b84 100644
--- a/drivers/thunderbolt/tb_regs.h
+++ b/drivers/thunderbolt/tb_regs.h
@@ -203,7 +203,7 @@ struct tb_regs_switch_header {
#define ROUTER_CS_5_WOP BIT(1)
#define ROUTER_CS_5_WOU BIT(2)
#define ROUTER_CS_5_WOD BIT(3)
-#define ROUTER_CS_5_C3S BIT(23)
+#define ROUTER_CS_5_CNS BIT(23)
#define ROUTER_CS_5_PTO BIT(24)
#define ROUTER_CS_5_UTO BIT(25)
#define ROUTER_CS_5_HCO BIT(26)
diff --git a/drivers/thunderbolt/usb4.c b/drivers/thunderbolt/usb4.c
index f8f0d24ff6e4..1515eff8cc3e 100644
--- a/drivers/thunderbolt/usb4.c
+++ b/drivers/thunderbolt/usb4.c
@@ -290,7 +290,7 @@ int usb4_switch_setup(struct tb_switch *sw)
}
/* TBT3 supported by the CM */
- val |= ROUTER_CS_5_C3S;
+ val &= ~ROUTER_CS_5_CNS;
return tb_sw_write(sw, &val, TB_CFG_SWITCH, ROUTER_CS_5, 1);
}
--
2.39.2
