linux-kernel - [PATCH v5 6/8] usb: typec: displayport: Fill the negotiated SVDM Version in the header

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Date:   Wed,  3 Feb 2021 00:17:31 +0800
From:   Kyle Tso <kyletso@...gle.com>
To:     linux@...ck-us.net, heikki.krogerus@...ux.intel.com,
        gregkh@...uxfoundation.org, hdegoede@...hat.com, robh+dt@...nel.org
Cc:     badhri@...gle.com, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Kyle Tso <kyletso@...gle.com>
Subject: [PATCH v5 6/8] usb: typec: displayport: Fill the negotiated SVDM
 Version in the header

VDM header now requires SVDM Version. Get it from typec_port.

Signed-off-by: Kyle Tso <kyletso@...gle.com>
---
 drivers/usb/typec/altmodes/displayport.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c
index 0abc3121238f..7b47dd4ea531 100644
--- a/drivers/usb/typec/altmodes/displayport.c
+++ b/drivers/usb/typec/altmodes/displayport.c
@@ -15,8 +15,10 @@
 #include <linux/usb/typec_dp.h>
 #include "displayport.h"
 
-#define DP_HEADER(_dp, cmd)		(VDO((_dp)->alt->svid, 1, SVDM_VER_1_0, cmd) | \
-					 VDO_OPOS(USB_TYPEC_DP_MODE))
+#define DP_HEADER(_dp, cmd)		(VDO((_dp)->alt->svid, 1,			\
+					     typec_get_svdm_version((_dp)->typec),	\
+					     cmd)					\
+					 | VDO_OPOS(USB_TYPEC_DP_MODE))
 
 enum {
 	DP_CONF_USB,
@@ -62,6 +64,7 @@ struct dp_altmode {
 	struct work_struct work;
 	struct typec_altmode *alt;
 	const struct typec_altmode *port;
+	struct typec_port *typec;
 };
 
 static int dp_altmode_notify(struct dp_altmode *dp)
@@ -536,6 +539,7 @@ int dp_altmode_probe(struct typec_altmode *alt)
 	mutex_init(&dp->lock);
 	dp->port = port;
 	dp->alt = alt;
+	dp->typec = typec_altmode2port(alt);
 
 	alt->desc = "DisplayPort";
 	alt->ops = &dp_altmode_ops;
-- 
2.30.0.365.g02bc693789-goog