usb: typec: Add typec_find_orientation() (8c49c9ee) · Commits · 戴 / test

drivers/usb/typec/class.c

+24 −12

Original line number	Diff line number	Diff line
		@@ -917,6 +917,12 @@ EXPORT_SYMBOL_GPL(typec_unregister_cable);
		/* ------------------------------------------------------------------------- */
		/* USB Type-C ports */

		static const char * const typec_orientations[] = {
		[TYPEC_ORIENTATION_NONE] = "unknown",
		[TYPEC_ORIENTATION_NORMAL] = "normal",
		[TYPEC_ORIENTATION_REVERSE] = "reverse",
		};

		static const char * const typec_roles[] = {
		[TYPEC_SINK] = "sink",
		[TYPEC_SOURCE] = "source",
		@@ -1248,18 +1254,9 @@ static ssize_t orientation_show(struct device *dev,
		struct device_attribute *attr,
		char *buf)
		{
		struct typec_port *p = to_typec_port(dev);
		enum typec_orientation orientation = typec_get_orientation(p);

		switch (orientation) {
		case TYPEC_ORIENTATION_NORMAL:
		return sprintf(buf, "%s\n", "normal");
		case TYPEC_ORIENTATION_REVERSE:
		return sprintf(buf, "%s\n", "reverse");
		case TYPEC_ORIENTATION_NONE:
		default:
		return sprintf(buf, "%s\n", "unknown");
		}
		struct typec_port *port = to_typec_port(dev);

		return sprintf(buf, "%s\n", typec_orientations[port->orientation]);
		}
		static DEVICE_ATTR_RO(orientation);

		@@ -1451,6 +1448,21 @@ void typec_set_pwr_opmode(struct typec_port *port,
		}
		EXPORT_SYMBOL_GPL(typec_set_pwr_opmode);

		/**
		* typec_find_orientation - Convert orientation string to enum typec_orientation
		* @name: Orientation string
		*
		* This routine is used to find the typec_orientation by its string name @name.
		*
		* Returns the orientation value on success, otherwise negative error code.
		*/
		int typec_find_orientation(const char *name)
		{
		return match_string(typec_orientations, ARRAY_SIZE(typec_orientations),
		name);
		}
		EXPORT_SYMBOL_GPL(typec_find_orientation);

		/**
		* typec_find_port_power_role - Get the typec port power capability
		* @name: port power capability string

include/linux/usb/typec.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -254,6 +254,7 @@ int typec_set_mode(struct typec_port *port, int mode);

		void typec_get_drvdata(struct typec_port port);

		int typec_find_orientation(const char *name);
		int typec_find_port_power_role(const char *name);
		int typec_find_power_role(const char *name);
		int typec_find_port_data_role(const char *name);

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