linux-kernel - [PATCH 3/4] usb: typec: tcpm: add support to set tcpc connector orientatition

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Message-Id: <20240205164316.805408-4-m.felsch@pengutronix.de>
Date: Mon,  5 Feb 2024 17:43:15 +0100
From: Marco Felsch <m.felsch@...gutronix.de>
To: gregkh@...uxfoundation.org,
	robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org,
	conor+dt@...nel.org,
	linux@...ck-us.net,
	heikki.krogerus@...ux.intel.com
Cc: linux-usb@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	kernel@...gutronix.de
Subject: [PATCH 3/4] usb: typec: tcpm: add support to set tcpc connector orientatition

This adds the support to set the connector orientation value
accordingly. This is part of the optional CONFIG_STANDARD_OUTPUT
register 0x18, specified within the USB port controller spsicification
rev. 2.0 [1].

[1] https://www.usb.org/sites/default/files/documents/usb-port_controller_specification_rev2.0_v1.0_0.pdf

Signed-off-by: Marco Felsch <m.felsch@...gutronix.de>
---
 drivers/usb/typec/tcpm/tcpm.c | 6 ++++++
 include/linux/usb/tcpm.h      | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index 5945e3a2b0f7..85ca26687324 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -1099,6 +1099,12 @@ static int tcpm_set_roles(struct tcpm_port *port, bool attached,
 	if (ret < 0)
 		return ret;
 
+	if (port->tcpc->set_orientation) {
+		ret = port->tcpc->set_orientation(port->tcpc, orientation);
+		if (ret < 0)
+			return ret;
+	}
+
 	port->pwr_role = role;
 	port->data_role = data;
 	typec_set_data_role(port->typec_port, data);
diff --git a/include/linux/usb/tcpm.h b/include/linux/usb/tcpm.h
index 65fac5e1f317..93b681ff3ef9 100644
--- a/include/linux/usb/tcpm.h
+++ b/include/linux/usb/tcpm.h
@@ -133,6 +133,8 @@ struct tcpc_dev {
 		      enum typec_cc_status *cc2);
 	int (*set_polarity)(struct tcpc_dev *dev,
 			    enum typec_cc_polarity polarity);
+	int (*set_orientation)(struct tcpc_dev *dev,
+			       enum typec_orientation orientation);
 	int (*set_vconn)(struct tcpc_dev *dev, bool on);
 	int (*set_vbus)(struct tcpc_dev *dev, bool on, bool charge);
 	int (*set_current_limit)(struct tcpc_dev *dev, u32 max_ma, u32 mv);
-- 
2.39.2