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| author | Heikki Krogerus <heikki.krogerus@linux.intel.com> | 2020-05-07 18:08:57 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-13 14:20:49 +0200 |
| commit | 8c49c9ee4a91c158d28c583862718b348881cb16 (patch) | |
| tree | 6b8080f1a112cff6d558788867b0b4b4800a6176 /drivers/usb/typec | |
| parent | 3e63cff384e625f09758ce8f4d01ae3033402b63 (diff) | |
| download | linux-stable-8c49c9ee4a91c158d28c583862718b348881cb16.tar.gz linux-stable-8c49c9ee4a91c158d28c583862718b348881cb16.tar.bz2 linux-stable-8c49c9ee4a91c158d28c583862718b348881cb16.zip | |
usb: typec: Add typec_find_orientation()
Function that converts orientation string into orientation
value.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20200507150900.12102-2-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/typec')
| -rw-r--r-- | drivers/usb/typec/class.c | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index 8d894bdff77d..c9234748537a 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -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); @@ -1452,6 +1449,21 @@ 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 * |