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* [PATCH v3] usb: typec: Add sysfs node to show cc orientation
@ 2020-02-26 18:25 Badhri Jagan Sridharan
  2020-02-26 18:27 ` Badhri Jagan Sridharan
  2020-02-26 18:31 ` Guenter Roeck
  0 siblings, 2 replies; 4+ messages in thread
From: Badhri Jagan Sridharan @ 2020-02-26 18:25 UTC (permalink / raw)
  To: Heikki Krogerus, Greg Kroah-Hartman, Guenter Roeck
  Cc: linux-usb, linux-kernel, pumahsu, Badhri Jagan Sridharan

Export Type-C orientation information when available.
- "normal": CC1 orientation
- "reverse": CC2 orientation
- "unknown": Orientation cannot be determined.

Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
---
Version history:
V3:
- Heikki's suggestion to us .is_visible callback.
  unsigned int orientation_aware:1 has been introduced to
  make support of this attribute optional for drivers such
  as UCSI
- Guenter's suggestion to rename to "orientation".
- Heikki's suggestion to stick with string values instead
  of exposing it as integer values.
---
 Documentation/ABI/testing/sysfs-class-typec |  9 +++++++
 drivers/usb/typec/class.c                   | 27 +++++++++++++++++++++
 drivers/usb/typec/tcpm/tcpm.c               |  1 +
 include/linux/usb/typec.h                   |  1 +
 4 files changed, 38 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-class-typec b/Documentation/ABI/testing/sysfs-class-typec
index 0c2eb26fdc06b..b834671522d6f 100644
--- a/Documentation/ABI/testing/sysfs-class-typec
+++ b/Documentation/ABI/testing/sysfs-class-typec
@@ -108,6 +108,15 @@ Contact:	Heikki Krogerus <heikki.krogerus@linux.intel.com>
 Description:
 		Revision number of the supported USB Type-C specification.
 
+What:		/sys/class/typec/<port>/orientation
+Date:		February 2020
+Contact:	Badhri Jagan Sridharan <badhri@google.com>
+Description:
+		Indicates the active orientation of the Type-C connector.
+		Valid values:
+		- "normal": CC1 orientation
+		- "reverse": CC2 orientation
+		- "unknown": Orientation cannot be determined.
 
 USB Type-C partner devices (eg. /sys/class/typec/port0-partner/)
 
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
index 12be5bb6d32ca..2524f1571e425 100644
--- a/drivers/usb/typec/class.c
+++ b/drivers/usb/typec/class.c
@@ -1244,6 +1244,26 @@ static ssize_t usb_power_delivery_revision_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(usb_power_delivery_revision);
 
+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_NONE:
+		return sprintf(buf, "%s\n", "unknown");
+	case TYPEC_ORIENTATION_NORMAL:
+		return sprintf(buf, "%s\n", "normal");
+	case TYPEC_ORIENTATION_REVERSE:
+		return sprintf(buf, "%s\n", "reverse");
+	default:
+		return sprintf(buf, "%s\n", "unknown");
+	}
+}
+static DEVICE_ATTR_RO(orientation);
+
 static struct attribute *typec_attrs[] = {
 	&dev_attr_data_role.attr,
 	&dev_attr_power_operation_mode.attr,
@@ -1254,6 +1274,7 @@ static struct attribute *typec_attrs[] = {
 	&dev_attr_usb_typec_revision.attr,
 	&dev_attr_vconn_source.attr,
 	&dev_attr_port_type.attr,
+	&dev_attr_orientation.attr,
 	NULL,
 };
 
@@ -1283,6 +1304,10 @@ static umode_t typec_attr_is_visible(struct kobject *kobj,
 			return 0;
 		if (port->cap->type != TYPEC_PORT_DRP)
 			return 0444;
+	} else if (attr == &dev_attr_orientation.attr) {
+		if (port->cap->orientation_aware)
+			return 0444;
+		return 0;
 	}
 
 	return attr->mode;
@@ -1493,6 +1518,8 @@ int typec_set_orientation(struct typec_port *port,
 	}
 
 	port->orientation = orientation;
+	sysfs_notify(&port->dev.kobj, NULL, "orientation");
+	kobject_uevent(&port->dev.kobj, KOBJ_CHANGE);
 
 	return 0;
 }
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index 78077c234ef27..bc0032a6b9a14 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -4742,6 +4742,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
 	port->typec_caps.pd_revision = 0x0300;	/* USB-PD spec release 3.0 */
 	port->typec_caps.driver_data = port;
 	port->typec_caps.ops = &tcpm_ops;
+	port->typec_caps.orientation_aware = 1;
 
 	port->partner_desc.identity = &port->partner_ident;
 	port->port_type = port->typec_caps.type;
diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h
index 44d28387ced48..b00a2642a9cd6 100644
--- a/include/linux/usb/typec.h
+++ b/include/linux/usb/typec.h
@@ -211,6 +211,7 @@ struct typec_capability {
 	u16			pd_revision; /* 0300H = "3.0" */
 	int			prefer_role;
 	enum typec_accessory	accessory[TYPEC_MAX_ACCESSORY];
+	unsigned int		orientation_aware:1;
 
 	struct fwnode_handle	*fwnode;
 	void			*driver_data;
-- 
2.25.0.265.gbab2e86ba0-goog


^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH v3] usb: typec: Add sysfs node to show cc orientation
  2020-02-26 18:25 [PATCH v3] usb: typec: Add sysfs node to show cc orientation Badhri Jagan Sridharan
@ 2020-02-26 18:27 ` Badhri Jagan Sridharan
  2020-02-26 18:31 ` Guenter Roeck
  1 sibling, 0 replies; 4+ messages in thread
From: Badhri Jagan Sridharan @ 2020-02-26 18:27 UTC (permalink / raw)
  To: Heikki Krogerus, Greg Kroah-Hartman, Guenter Roeck; +Cc: USB, LKML, Puma Hsu

Hi all,

Following up with the initial patch from
Puma(https://lkml.org/lkml/2019/10/15/1317) after
addressing the comments from the previous patches.

Thanks & Regards,
Badhri


On Wed, Feb 26, 2020 at 10:25 AM Badhri Jagan Sridharan
<badhri@google.com> wrote:
>
> Export Type-C orientation information when available.
> - "normal": CC1 orientation
> - "reverse": CC2 orientation
> - "unknown": Orientation cannot be determined.
>
> Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
> ---
> Version history:
> V3:
> - Heikki's suggestion to us .is_visible callback.
>   unsigned int orientation_aware:1 has been introduced to
>   make support of this attribute optional for drivers such
>   as UCSI
> - Guenter's suggestion to rename to "orientation".
> - Heikki's suggestion to stick with string values instead
>   of exposing it as integer values.
> ---
>  Documentation/ABI/testing/sysfs-class-typec |  9 +++++++
>  drivers/usb/typec/class.c                   | 27 +++++++++++++++++++++
>  drivers/usb/typec/tcpm/tcpm.c               |  1 +
>  include/linux/usb/typec.h                   |  1 +
>  4 files changed, 38 insertions(+)
>
> diff --git a/Documentation/ABI/testing/sysfs-class-typec b/Documentation/ABI/testing/sysfs-class-typec
> index 0c2eb26fdc06b..b834671522d6f 100644
> --- a/Documentation/ABI/testing/sysfs-class-typec
> +++ b/Documentation/ABI/testing/sysfs-class-typec
> @@ -108,6 +108,15 @@ Contact:   Heikki Krogerus <heikki.krogerus@linux.intel.com>
>  Description:
>                 Revision number of the supported USB Type-C specification.
>
> +What:          /sys/class/typec/<port>/orientation
> +Date:          February 2020
> +Contact:       Badhri Jagan Sridharan <badhri@google.com>
> +Description:
> +               Indicates the active orientation of the Type-C connector.
> +               Valid values:
> +               - "normal": CC1 orientation
> +               - "reverse": CC2 orientation
> +               - "unknown": Orientation cannot be determined.
>
>  USB Type-C partner devices (eg. /sys/class/typec/port0-partner/)
>
> diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
> index 12be5bb6d32ca..2524f1571e425 100644
> --- a/drivers/usb/typec/class.c
> +++ b/drivers/usb/typec/class.c
> @@ -1244,6 +1244,26 @@ static ssize_t usb_power_delivery_revision_show(struct device *dev,
>  }
>  static DEVICE_ATTR_RO(usb_power_delivery_revision);
>
> +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_NONE:
> +               return sprintf(buf, "%s\n", "unknown");
> +       case TYPEC_ORIENTATION_NORMAL:
> +               return sprintf(buf, "%s\n", "normal");
> +       case TYPEC_ORIENTATION_REVERSE:
> +               return sprintf(buf, "%s\n", "reverse");
> +       default:
> +               return sprintf(buf, "%s\n", "unknown");
> +       }
> +}
> +static DEVICE_ATTR_RO(orientation);
> +
>  static struct attribute *typec_attrs[] = {
>         &dev_attr_data_role.attr,
>         &dev_attr_power_operation_mode.attr,
> @@ -1254,6 +1274,7 @@ static struct attribute *typec_attrs[] = {
>         &dev_attr_usb_typec_revision.attr,
>         &dev_attr_vconn_source.attr,
>         &dev_attr_port_type.attr,
> +       &dev_attr_orientation.attr,
>         NULL,
>  };
>
> @@ -1283,6 +1304,10 @@ static umode_t typec_attr_is_visible(struct kobject *kobj,
>                         return 0;
>                 if (port->cap->type != TYPEC_PORT_DRP)
>                         return 0444;
> +       } else if (attr == &dev_attr_orientation.attr) {
> +               if (port->cap->orientation_aware)
> +                       return 0444;
> +               return 0;
>         }
>
>         return attr->mode;
> @@ -1493,6 +1518,8 @@ int typec_set_orientation(struct typec_port *port,
>         }
>
>         port->orientation = orientation;
> +       sysfs_notify(&port->dev.kobj, NULL, "orientation");
> +       kobject_uevent(&port->dev.kobj, KOBJ_CHANGE);
>
>         return 0;
>  }
> diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
> index 78077c234ef27..bc0032a6b9a14 100644
> --- a/drivers/usb/typec/tcpm/tcpm.c
> +++ b/drivers/usb/typec/tcpm/tcpm.c
> @@ -4742,6 +4742,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
>         port->typec_caps.pd_revision = 0x0300;  /* USB-PD spec release 3.0 */
>         port->typec_caps.driver_data = port;
>         port->typec_caps.ops = &tcpm_ops;
> +       port->typec_caps.orientation_aware = 1;
>
>         port->partner_desc.identity = &port->partner_ident;
>         port->port_type = port->typec_caps.type;
> diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h
> index 44d28387ced48..b00a2642a9cd6 100644
> --- a/include/linux/usb/typec.h
> +++ b/include/linux/usb/typec.h
> @@ -211,6 +211,7 @@ struct typec_capability {
>         u16                     pd_revision; /* 0300H = "3.0" */
>         int                     prefer_role;
>         enum typec_accessory    accessory[TYPEC_MAX_ACCESSORY];
> +       unsigned int            orientation_aware:1;
>
>         struct fwnode_handle    *fwnode;
>         void                    *driver_data;
> --
> 2.25.0.265.gbab2e86ba0-goog
>

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH v3] usb: typec: Add sysfs node to show cc orientation
  2020-02-26 18:25 [PATCH v3] usb: typec: Add sysfs node to show cc orientation Badhri Jagan Sridharan
  2020-02-26 18:27 ` Badhri Jagan Sridharan
@ 2020-02-26 18:31 ` Guenter Roeck
  2020-02-26 19:58   ` Badhri Jagan Sridharan
  1 sibling, 1 reply; 4+ messages in thread
From: Guenter Roeck @ 2020-02-26 18:31 UTC (permalink / raw)
  To: Badhri Jagan Sridharan
  Cc: Heikki Krogerus, Greg Kroah-Hartman, linux-usb, linux-kernel, pumahsu

On Wed, Feb 26, 2020 at 10:25:17AM -0800, Badhri Jagan Sridharan wrote:
> Export Type-C orientation information when available.
> - "normal": CC1 orientation
> - "reverse": CC2 orientation
> - "unknown": Orientation cannot be determined.
> 
> Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
> ---
> Version history:
> V3:
> - Heikki's suggestion to us .is_visible callback.
>   unsigned int orientation_aware:1 has been introduced to
>   make support of this attribute optional for drivers such
>   as UCSI
> - Guenter's suggestion to rename to "orientation".
> - Heikki's suggestion to stick with string values instead
>   of exposing it as integer values.
> ---
>  Documentation/ABI/testing/sysfs-class-typec |  9 +++++++
>  drivers/usb/typec/class.c                   | 27 +++++++++++++++++++++
>  drivers/usb/typec/tcpm/tcpm.c               |  1 +
>  include/linux/usb/typec.h                   |  1 +
>  4 files changed, 38 insertions(+)
> 
> diff --git a/Documentation/ABI/testing/sysfs-class-typec b/Documentation/ABI/testing/sysfs-class-typec
> index 0c2eb26fdc06b..b834671522d6f 100644
> --- a/Documentation/ABI/testing/sysfs-class-typec
> +++ b/Documentation/ABI/testing/sysfs-class-typec
> @@ -108,6 +108,15 @@ Contact:	Heikki Krogerus <heikki.krogerus@linux.intel.com>
>  Description:
>  		Revision number of the supported USB Type-C specification.
>  
> +What:		/sys/class/typec/<port>/orientation
> +Date:		February 2020
> +Contact:	Badhri Jagan Sridharan <badhri@google.com>
> +Description:
> +		Indicates the active orientation of the Type-C connector.
> +		Valid values:
> +		- "normal": CC1 orientation
> +		- "reverse": CC2 orientation
> +		- "unknown": Orientation cannot be determined.
>  
>  USB Type-C partner devices (eg. /sys/class/typec/port0-partner/)
>  
> diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
> index 12be5bb6d32ca..2524f1571e425 100644
> --- a/drivers/usb/typec/class.c
> +++ b/drivers/usb/typec/class.c
> @@ -1244,6 +1244,26 @@ static ssize_t usb_power_delivery_revision_show(struct device *dev,
>  }
>  static DEVICE_ATTR_RO(usb_power_delivery_revision);
>  
> +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_NONE:
> +		return sprintf(buf, "%s\n", "unknown");
> +	case TYPEC_ORIENTATION_NORMAL:
> +		return sprintf(buf, "%s\n", "normal");
> +	case TYPEC_ORIENTATION_REVERSE:
> +		return sprintf(buf, "%s\n", "reverse");
> +	default:
> +		return sprintf(buf, "%s\n", "unknown");

TYPEC_ORIENTATION_NONE and default can be handled in a single case statement.

> +	}
> +}
> +static DEVICE_ATTR_RO(orientation);
> +
>  static struct attribute *typec_attrs[] = {
>  	&dev_attr_data_role.attr,
>  	&dev_attr_power_operation_mode.attr,
> @@ -1254,6 +1274,7 @@ static struct attribute *typec_attrs[] = {
>  	&dev_attr_usb_typec_revision.attr,
>  	&dev_attr_vconn_source.attr,
>  	&dev_attr_port_type.attr,
> +	&dev_attr_orientation.attr,
>  	NULL,
>  };
>  
> @@ -1283,6 +1304,10 @@ static umode_t typec_attr_is_visible(struct kobject *kobj,
>  			return 0;
>  		if (port->cap->type != TYPEC_PORT_DRP)
>  			return 0444;
> +	} else if (attr == &dev_attr_orientation.attr) {
> +		if (port->cap->orientation_aware)
> +			return 0444;
> +		return 0;
>  	}
>  
>  	return attr->mode;
> @@ -1493,6 +1518,8 @@ int typec_set_orientation(struct typec_port *port,
>  	}
>  
>  	port->orientation = orientation;
> +	sysfs_notify(&port->dev.kobj, NULL, "orientation");
> +	kobject_uevent(&port->dev.kobj, KOBJ_CHANGE);
>  
>  	return 0;
>  }
> diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
> index 78077c234ef27..bc0032a6b9a14 100644
> --- a/drivers/usb/typec/tcpm/tcpm.c
> +++ b/drivers/usb/typec/tcpm/tcpm.c
> @@ -4742,6 +4742,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
>  	port->typec_caps.pd_revision = 0x0300;	/* USB-PD spec release 3.0 */
>  	port->typec_caps.driver_data = port;
>  	port->typec_caps.ops = &tcpm_ops;
> +	port->typec_caps.orientation_aware = 1;
>  
>  	port->partner_desc.identity = &port->partner_ident;
>  	port->port_type = port->typec_caps.type;
> diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h
> index 44d28387ced48..b00a2642a9cd6 100644
> --- a/include/linux/usb/typec.h
> +++ b/include/linux/usb/typec.h
> @@ -211,6 +211,7 @@ struct typec_capability {
>  	u16			pd_revision; /* 0300H = "3.0" */
>  	int			prefer_role;
>  	enum typec_accessory	accessory[TYPEC_MAX_ACCESSORY];
> +	unsigned int		orientation_aware:1;
>  
>  	struct fwnode_handle	*fwnode;
>  	void			*driver_data;
> -- 
> 2.25.0.265.gbab2e86ba0-goog
> 

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH v3] usb: typec: Add sysfs node to show cc orientation
  2020-02-26 18:31 ` Guenter Roeck
@ 2020-02-26 19:58   ` Badhri Jagan Sridharan
  0 siblings, 0 replies; 4+ messages in thread
From: Badhri Jagan Sridharan @ 2020-02-26 19:58 UTC (permalink / raw)
  To: Guenter Roeck; +Cc: Heikki Krogerus, Greg Kroah-Hartman, USB, LKML, Puma Hsu

Thanks Geunter ! Sure ! Updated the patch.

On Wed, Feb 26, 2020 at 10:32 AM Guenter Roeck <linux@roeck-us.net> wrote:
>
> On Wed, Feb 26, 2020 at 10:25:17AM -0800, Badhri Jagan Sridharan wrote:
> > Export Type-C orientation information when available.
> > - "normal": CC1 orientation
> > - "reverse": CC2 orientation
> > - "unknown": Orientation cannot be determined.
> >
> > Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
> > ---
> > Version history:
> > V3:
> > - Heikki's suggestion to us .is_visible callback.
> >   unsigned int orientation_aware:1 has been introduced to
> >   make support of this attribute optional for drivers such
> >   as UCSI
> > - Guenter's suggestion to rename to "orientation".
> > - Heikki's suggestion to stick with string values instead
> >   of exposing it as integer values.
> > ---
> >  Documentation/ABI/testing/sysfs-class-typec |  9 +++++++
> >  drivers/usb/typec/class.c                   | 27 +++++++++++++++++++++
> >  drivers/usb/typec/tcpm/tcpm.c               |  1 +
> >  include/linux/usb/typec.h                   |  1 +
> >  4 files changed, 38 insertions(+)
> >
> > diff --git a/Documentation/ABI/testing/sysfs-class-typec b/Documentation/ABI/testing/sysfs-class-typec
> > index 0c2eb26fdc06b..b834671522d6f 100644
> > --- a/Documentation/ABI/testing/sysfs-class-typec
> > +++ b/Documentation/ABI/testing/sysfs-class-typec
> > @@ -108,6 +108,15 @@ Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> >  Description:
> >               Revision number of the supported USB Type-C specification.
> >
> > +What:                /sys/class/typec/<port>/orientation
> > +Date:                February 2020
> > +Contact:     Badhri Jagan Sridharan <badhri@google.com>
> > +Description:
> > +             Indicates the active orientation of the Type-C connector.
> > +             Valid values:
> > +             - "normal": CC1 orientation
> > +             - "reverse": CC2 orientation
> > +             - "unknown": Orientation cannot be determined.
> >
> >  USB Type-C partner devices (eg. /sys/class/typec/port0-partner/)
> >
> > diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
> > index 12be5bb6d32ca..2524f1571e425 100644
> > --- a/drivers/usb/typec/class.c
> > +++ b/drivers/usb/typec/class.c
> > @@ -1244,6 +1244,26 @@ static ssize_t usb_power_delivery_revision_show(struct device *dev,
> >  }
> >  static DEVICE_ATTR_RO(usb_power_delivery_revision);
> >
> > +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_NONE:
> > +             return sprintf(buf, "%s\n", "unknown");
> > +     case TYPEC_ORIENTATION_NORMAL:
> > +             return sprintf(buf, "%s\n", "normal");
> > +     case TYPEC_ORIENTATION_REVERSE:
> > +             return sprintf(buf, "%s\n", "reverse");
> > +     default:
> > +             return sprintf(buf, "%s\n", "unknown");
>
> TYPEC_ORIENTATION_NONE and default can be handled in a single case statement.
>
> > +     }
> > +}
> > +static DEVICE_ATTR_RO(orientation);
> > +
> >  static struct attribute *typec_attrs[] = {
> >       &dev_attr_data_role.attr,
> >       &dev_attr_power_operation_mode.attr,
> > @@ -1254,6 +1274,7 @@ static struct attribute *typec_attrs[] = {
> >       &dev_attr_usb_typec_revision.attr,
> >       &dev_attr_vconn_source.attr,
> >       &dev_attr_port_type.attr,
> > +     &dev_attr_orientation.attr,
> >       NULL,
> >  };
> >
> > @@ -1283,6 +1304,10 @@ static umode_t typec_attr_is_visible(struct kobject *kobj,
> >                       return 0;
> >               if (port->cap->type != TYPEC_PORT_DRP)
> >                       return 0444;
> > +     } else if (attr == &dev_attr_orientation.attr) {
> > +             if (port->cap->orientation_aware)
> > +                     return 0444;
> > +             return 0;
> >       }
> >
> >       return attr->mode;
> > @@ -1493,6 +1518,8 @@ int typec_set_orientation(struct typec_port *port,
> >       }
> >
> >       port->orientation = orientation;
> > +     sysfs_notify(&port->dev.kobj, NULL, "orientation");
> > +     kobject_uevent(&port->dev.kobj, KOBJ_CHANGE);
> >
> >       return 0;
> >  }
> > diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
> > index 78077c234ef27..bc0032a6b9a14 100644
> > --- a/drivers/usb/typec/tcpm/tcpm.c
> > +++ b/drivers/usb/typec/tcpm/tcpm.c
> > @@ -4742,6 +4742,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
> >       port->typec_caps.pd_revision = 0x0300;  /* USB-PD spec release 3.0 */
> >       port->typec_caps.driver_data = port;
> >       port->typec_caps.ops = &tcpm_ops;
> > +     port->typec_caps.orientation_aware = 1;
> >
> >       port->partner_desc.identity = &port->partner_ident;
> >       port->port_type = port->typec_caps.type;
> > diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h
> > index 44d28387ced48..b00a2642a9cd6 100644
> > --- a/include/linux/usb/typec.h
> > +++ b/include/linux/usb/typec.h
> > @@ -211,6 +211,7 @@ struct typec_capability {
> >       u16                     pd_revision; /* 0300H = "3.0" */
> >       int                     prefer_role;
> >       enum typec_accessory    accessory[TYPEC_MAX_ACCESSORY];
> > +     unsigned int            orientation_aware:1;
> >
> >       struct fwnode_handle    *fwnode;
> >       void                    *driver_data;
> > --
> > 2.25.0.265.gbab2e86ba0-goog
> >

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2020-02-26 19:59 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-02-26 18:25 [PATCH v3] usb: typec: Add sysfs node to show cc orientation Badhri Jagan Sridharan
2020-02-26 18:27 ` Badhri Jagan Sridharan
2020-02-26 18:31 ` Guenter Roeck
2020-02-26 19:58   ` Badhri Jagan Sridharan

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