linux-kernel - Re: [RFC PATCH v4 2/8] usb: typec: helper for checking cable plug orientation

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Date:   Tue, 12 Jun 2018 20:56:31 +0200
From:   Mats Karrman <mats.dev.list@...il.com>
To:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Hans de Goede <hdegoede@...hat.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jun Li <jun.li@....com>, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH v4 2/8] usb: typec: helper for checking cable plug
 orientation

Hi Heikki,

On 2018-06-08 13:29, Heikki Krogerus wrote:

> This adds function typec_get_orientation() that can be used
> for checking the current cable plug orientation.
>
> Signed-off-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
> ---
>   drivers/usb/typec/class.c | 11 +++++++++++
>   include/linux/usb/typec.h |  1 +
>   2 files changed, 12 insertions(+)
>
> diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
> index 53df10df2f9d..02db9bcbac0c 100644
> --- a/drivers/usb/typec/class.c
> +++ b/drivers/usb/typec/class.c
> @@ -1279,6 +1279,17 @@ int typec_set_orientation(struct typec_port *port,
>   }
>   EXPORT_SYMBOL_GPL(typec_set_orientation);
>   
> +/**
> + * typec_get_orientation - Get USB Type-C cable plug orientation
> + * @port: USB Type-C Port
> + *
> + * Get current cable plug orientation for @port.
> + */
> +enum typec_orientation typec_get_orientation(struct typec_port *port)
> +{
> +	return port->orientation;
> +}

+EXPORT_SYMBOL_GPL(typec_get_orientation);

Isn't this a candidate for an inline?

BR // Mats

> +
>   /**
>    * typec_set_mode - Set mode of operation for USB Type-C connector
>    * @port: USB Type-C port for the connector
> diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h
> index 672b39bb0adc..a5f6433e218b 100644
> --- a/include/linux/usb/typec.h
> +++ b/include/linux/usb/typec.h
> @@ -265,6 +265,7 @@ void typec_set_pwr_opmode(struct typec_port *port, enum typec_pwr_opmode mode);
>   
>   int typec_set_orientation(struct typec_port *port,
>   			  enum typec_orientation orientation);
> +enum typec_orientation typec_get_orientation(struct typec_port *port);
>   int typec_set_mode(struct typec_port *port, int mode);
>   
>   #endif /* __LINUX_USB_TYPEC_H */
>