Commit ec4d82f8 authored by Mohammad Rahimi's avatar Mohammad Rahimi Committed by Mika Westerberg
Browse files

thunderbolt: Fix setting the CNS bit in ROUTER_CS_5 



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

Fixes: b0407983 ("thunderbolt: Add initial support for USB4")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarMohammad Rahimi <rahimi.mhmmd@gmail.com>
Signed-off-by: default avatarMika Westerberg <mika.westerberg@linux.intel.com>
parent 41bccc98

drivers/thunderbolt/tb_regs.h

+1 −1
Original line number Diff line number Diff line
@@ -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)

drivers/thunderbolt/usb4.c

+1 −1
Original line number Diff line number Diff line
@@ -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);

}