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([115.135.24.14]) by smtp.gmail.com with ESMTPSA id hq4-20020a056a00680400b006ddc71607a7sm1818195pfb.191.2024.01.26.19.26.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Jan 2024 19:26:32 -0800 (PST) From: Mohammad Rahimi To: andreas.noever@gmail.com Cc: michael.jamet@intel.com, mika.westerberg@linux.intel.com, YehezkelShB@gmail.com, linux-usb@vger.kernel.org Subject: [PATCH] thunderbolt: Fix setting the CNS bit in ROUTER_CS_5 Date: Sat, 27 Jan 2024 11:26:28 +0800 Message-Id: <20240127032628.29606-1-rahimi.mhmmd@gmail.com> X-Mailer: git-send-email 2.39.2 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 --- 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); }