linux-kernel - [PATCH AUTOSEL 6.12 10/15] usb: typec: ucsi: glink: be more precise on orientation-aware ports

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Message-ID: <20241204221627.2247598-10-sashal@kernel.org>
Date: Wed,  4 Dec 2024 17:16:04 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
	Abel Vesa <abel.vesa@...aro.org>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Johan Hovold <johan+linaro@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Sasha Levin <sashal@...nel.org>,
	heikki.krogerus@...ux.intel.com,
	quic_bjorande@...cinc.com,
	javier.carrasco.cruz@...il.com,
	quic_kriskura@...cinc.com,
	linux-usb@...r.kernel.org
Subject: [PATCH AUTOSEL 6.12 10/15] usb: typec: ucsi: glink: be more precise on orientation-aware ports

From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

[ Upstream commit de9df030ccb5d3e31ee0c715d74cd77c619748f8 ]

Instead of checking if any of the USB-C ports have orientation GPIO and
thus is orientation-aware, check for the GPIO for the port being
registered. There are no boards that are affected by this change at this
moment, so the patch is not marked as a fix, but it might affect other
boards in future.

Reviewed-by: Abel Vesa <abel.vesa@...aro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>
Reviewed-by: Johan Hovold <johan+linaro@...nel.org>
Tested-by: Johan Hovold <johan+linaro@...nel.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Link: https://lore.kernel.org/r/20241109-ucsi-glue-fixes-v2-2-8b21ff4f9fbe@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/usb/typec/ucsi/ucsi_glink.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/typec/ucsi/ucsi_glink.c b/drivers/usb/typec/ucsi/ucsi_glink.c
index 03c0fa8edc8db..50a23578d0f26 100644
--- a/drivers/usb/typec/ucsi/ucsi_glink.c
+++ b/drivers/usb/typec/ucsi/ucsi_glink.c
@@ -172,12 +172,12 @@ static int pmic_glink_ucsi_async_control(struct ucsi *__ucsi, u64 command)
 static void pmic_glink_ucsi_update_connector(struct ucsi_connector *con)
 {
 	struct pmic_glink_ucsi *ucsi = ucsi_get_drvdata(con->ucsi);
-	int i;
 
-	for (i = 0; i < PMIC_GLINK_MAX_PORTS; i++) {
-		if (ucsi->port_orientation[i])
-			con->typec_cap.orientation_aware = true;
-	}
+	if (con->num > PMIC_GLINK_MAX_PORTS ||
+	    !ucsi->port_orientation[con->num - 1])
+		return;
+
+	con->typec_cap.orientation_aware = true;
 }
 
 static void pmic_glink_ucsi_connector_status(struct ucsi_connector *con)
-- 
2.43.0