From mboxrd@z Thu Jan 1 00:00:00 1970 From: Li Jun Subject: [PATCH v4 05/13] usb: typec: add API to get typec basic port power and data config Date: Thu, 29 Mar 2018 00:06:10 +0800 Message-ID: <1522253178-32414-6-git-send-email-jun.li@nxp.com> References: <1522253178-32414-1-git-send-email-jun.li@nxp.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1522253178-32414-1-git-send-email-jun.li@nxp.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: driverdev-devel-bounces@linuxdriverproject.org Sender: "devel" To: robh+dt@kernel.org, gregkh@linuxfoundation.org, heikki.krogerus@linux.intel.com, linux@roeck-us.net Cc: devel@driverdev.osuosl.org, devicetree@vger.kernel.org, peter.chen@nxp.com, linux-usb@vger.kernel.org, a.hajda@samsung.com, linux-imx@nxp.com, jun.li@nxp.com, shufan_lee@richtek.com List-Id: devicetree@vger.kernel.org This patch adds 3 APIs to get the typec port power and data type, and preferred power role by its name string. Suggested-by: Heikki Krogerus Signed-off-by: Li Jun --- drivers/usb/typec/class.c | 52 +++++++++++++++++++++++++++++++++++++++++++++++ include/linux/usb/typec.h | 3 +++ 2 files changed, 55 insertions(+) diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index 53df10d..5981e18 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include #include @@ -802,6 +803,12 @@ static const char * const typec_port_types[] = { [TYPEC_PORT_DRP] = "dual", }; +static const char * const typec_data_types[] = { + [TYPEC_PORT_DFP] = "host", + [TYPEC_PORT_UFP] = "device", + [TYPEC_PORT_DRD] = "dual", +}; + static const char * const typec_port_types_drp[] = { [TYPEC_PORT_SRC] = "dual [source] sink", [TYPEC_PORT_SNK] = "dual source [sink]", @@ -1252,6 +1259,51 @@ void typec_set_pwr_opmode(struct typec_port *port, } EXPORT_SYMBOL_GPL(typec_set_pwr_opmode); +/** + * typec_find_power_type - Get the typec port power type + * @name: port type string + * + * This routine is used to find the typec_port_type by its string name. + * + * Returns typec_port_type if success, otherwise negative error code. + */ +int typec_find_power_type(const char *name) +{ + return match_string(typec_port_types, ARRAY_SIZE(typec_port_types), + name); +} +EXPORT_SYMBOL_GPL(typec_find_power_type); + +/** + * typec_find_preferred_role - Find the typec drp port preferred power role + * @name: power role string + * + * This routine is used to find the typec_role by its string name of + * preferred power role(Try.SRC or Try.SNK). + * + * Returns typec_role if success, otherwise negative error code. + */ +int typec_find_preferred_role(const char *name) +{ + return match_string(typec_roles, ARRAY_SIZE(typec_roles), name); +} +EXPORT_SYMBOL_GPL(typec_find_preferred_role); + +/** + * typec_find_data_type - Get the typec port data capability + * @name: data type string + * + * This routine is used to find the typec_port_data by its string name. + * + * Returns typec_port_data if success, otherwise negative error code. + */ +int typec_find_data_type(const char *name) +{ + return match_string(typec_data_types, ARRAY_SIZE(typec_data_types), + name); +} +EXPORT_SYMBOL_GPL(typec_find_data_type); + /* ------------------------------------------ */ /* API for Multiplexer/DeMultiplexer Switches */ diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h index 672b39b..00c93e7 100644 --- a/include/linux/usb/typec.h +++ b/include/linux/usb/typec.h @@ -267,4 +267,7 @@ int typec_set_orientation(struct typec_port *port, enum typec_orientation orientation); int typec_set_mode(struct typec_port *port, int mode); +int typec_find_power_type(const char *name); +int typec_find_preferred_role(const char *name); +int typec_find_data_type(const char *name); #endif /* __LINUX_USB_TYPEC_H */ -- 2.7.4