linux-kernel - [PATCH 2/3] usb: typec: altmodes/displayport: Fix pin assignment calculation

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Message-Id: <20230111020546.3384569-2-pmalani@chromium.org>
Date:   Wed, 11 Jan 2023 02:05:42 +0000
From:   Prashant Malani <pmalani@...omium.org>
To:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Cc:     bleung@...omium.org, Prashant Malani <pmalani@...omium.org>,
        stable@...r.kernel.org,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Guillaume Ranquet <granquet@...libre.com>,
        Macpaul Lin <macpaul.lin@...iatek.com>,
        Pablo Sun <pablo.sun@...iatek.com>
Subject: [PATCH 2/3] usb: typec: altmodes/displayport: Fix pin assignment calculation

Commit c1e5c2f0cb8a ("usb: typec: altmodes/displayport: correct pin
assignment for UFP receptacles") fixed the pin assignment calculation
to take into account whether the peripheral was a plug or a receptacle.

But the "pin_assignments" sysfs logic was not updated. Address this by
using the macros introduced in the aforementioned commit in the sysfs
logic too.

Fixes: c1e5c2f0cb8a ("usb: typec: altmodes/displayport: correct pin assignment for UFP receptacles")
Cc: stable@...r.kernel.org
Cc: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Signed-off-by: Prashant Malani <pmalani@...omium.org>
---
 drivers/usb/typec/altmodes/displayport.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c
index f9d4a7648bc9..c0d65c93cefe 100644
--- a/drivers/usb/typec/altmodes/displayport.c
+++ b/drivers/usb/typec/altmodes/displayport.c
@@ -427,9 +427,9 @@ static const char * const pin_assignments[] = {
 static u8 get_current_pin_assignments(struct dp_altmode *dp)
 {
 	if (DP_CONF_CURRENTLY(dp->data.conf) == DP_CONF_DFP_D)
-		return DP_CAP_UFP_D_PIN_ASSIGN(dp->alt->vdo);
+		return DP_CAP_PIN_ASSIGN_DFP_D(dp->alt->vdo);
 	else
-		return DP_CAP_DFP_D_PIN_ASSIGN(dp->alt->vdo);
+		return DP_CAP_PIN_ASSIGN_UFP_D(dp->alt->vdo);
 }
 
 static ssize_t
-- 
2.39.0.314.g84b9a713c41-goog