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author | Gene Chen <gene_chen@richtek.com> | 2022-08-05 15:17:09 +0800 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-19 11:05:12 +0200 |
commit | 1e50ceb0397c14d7e934c65d862b499013847d9f (patch) | |
tree | 51cf05eece6aa5c5f1fd3927c718977ce9bb318a /drivers/usb/typec/tcpm | |
parent | 3b77b27155647dda2edc7f347ecc3b2828978d52 (diff) | |
download | linux-stable-1e50ceb0397c14d7e934c65d862b499013847d9f.tar.gz linux-stable-1e50ceb0397c14d7e934c65d862b499013847d9f.tar.bz2 linux-stable-1e50ceb0397c14d7e934c65d862b499013847d9f.zip |
usb: typec: tcpci_rt1711h: Add regulator support when source vbus
Add regulator support when source vbus
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Gene Chen <gene_chen@richtek.com>
Link: https://lore.kernel.org/r/20220805071714.150882-4-gene.chen.richtek@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/typec/tcpm')
-rw-r--r-- | drivers/usb/typec/tcpm/tcpci_rt1711h.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/usb/typec/tcpm/tcpci_rt1711h.c b/drivers/usb/typec/tcpm/tcpci_rt1711h.c index f2f1fb0d8bab..fb19d7bf9d1c 100644 --- a/drivers/usb/typec/tcpm/tcpci_rt1711h.c +++ b/drivers/usb/typec/tcpm/tcpci_rt1711h.c @@ -14,6 +14,7 @@ #include <linux/usb/tcpci.h> #include <linux/usb/tcpm.h> #include <linux/regmap.h> +#include <linux/regulator/consumer.h> #define RT1711H_VID 0x29CF #define RT1711H_PID 0x1711 @@ -41,6 +42,8 @@ struct rt1711h_chip { struct tcpci_data data; struct tcpci *tcpci; struct device *dev; + struct regulator *vbus; + bool src_en; }; static int rt1711h_read16(struct rt1711h_chip *chip, unsigned int reg, u16 *val) @@ -104,6 +107,26 @@ static int rt1711h_init(struct tcpci *tcpci, struct tcpci_data *tdata) /* dcSRC.DRP : 33% */ return rt1711h_write16(chip, RT1711H_RTCTRL16, 330); + +} + +static int rt1711h_set_vbus(struct tcpci *tcpci, struct tcpci_data *tdata, + bool src, bool snk) +{ + struct rt1711h_chip *chip = tdata_to_rt1711h(tdata); + int ret; + + if (chip->src_en == src) + return 0; + + if (src) + ret = regulator_enable(chip->vbus); + else + ret = regulator_disable(chip->vbus); + + if (!ret) + chip->src_en = src; + return ret; } static int rt1711h_set_vconn(struct tcpci *tcpci, struct tcpci_data *tdata, @@ -247,7 +270,12 @@ static int rt1711h_probe(struct i2c_client *client, if (ret < 0) return ret; + chip->vbus = devm_regulator_get(&client->dev, "vbus"); + if (IS_ERR(chip->vbus)) + return PTR_ERR(chip->vbus); + chip->data.init = rt1711h_init; + chip->data.set_vbus = rt1711h_set_vbus; chip->data.set_vconn = rt1711h_set_vconn; chip->data.start_drp_toggling = rt1711h_start_drp_toggling; chip->tcpci = tcpci_register_port(chip->dev, &chip->data); |