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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org,
        Andy Shevchenko <andy.shevchenko@gmail.com>,
        Hans de Goede <hdegoede@redhat.com>,
        Heikki Krogerus <heikki.krogerus@linux.intel.com>
Subject: [PATCH 4.19 131/134] platform: x86: intel_cht_int33fe: Add connection for the DP alt mode
Date:   Mon,  1 Apr 2019 19:02:47 +0200
Message-Id: <20190401170056.448072463@linuxfoundation.org>
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4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Heikki Krogerus <heikki.krogerus@linux.intel.com>

commit 78d2b54b134ea6059e2b1554ad53fab2300a4cc6 upstream.

Adding a connection for the DisplayPort alternate mode.
PI3USB30532 is used for muxing the port to DisplayPort on
CHT platforms. The connection allows the alternate mode
device to get handle to the mux, and therefore make it
possible to use the USB Type-C connector as DisplayPort.

Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/platform/x86/intel_cht_int33fe.c |    9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

--- a/drivers/platform/x86/intel_cht_int33fe.c
+++ b/drivers/platform/x86/intel_cht_int33fe.c
@@ -34,7 +34,7 @@ struct cht_int33fe_data {
 	struct i2c_client *fusb302;
 	struct i2c_client *pi3usb30532;
 	/* Contain a list-head must be per device */
-	struct device_connection connections[4];
+	struct device_connection connections[5];
 };
 
 /*
@@ -181,8 +181,11 @@ static int cht_int33fe_probe(struct i2c_
 	data->connections[1].endpoint[1] = "i2c-pi3usb30532";
 	data->connections[1].id = "typec-mux";
 	data->connections[2].endpoint[0] = "i2c-fusb302";
-	data->connections[2].endpoint[1] = "intel_xhci_usb_sw-role-switch";
-	data->connections[2].id = "usb-role-switch";
+	data->connections[2].endpoint[1] = "i2c-pi3usb30532";
+	data->connections[2].id = "idff01m01";
+	data->connections[3].endpoint[0] = "i2c-fusb302";
+	data->connections[3].endpoint[1] = "intel_xhci_usb_sw-role-switch";
+	data->connections[3].id = "usb-role-switch";
 
 	device_connections_add(data->connections);