Commit 1e50ceb0 authored by Gene Chen's avatar Gene Chen Committed by Greg Kroah-Hartman
Browse files

usb: typec: tcpci_rt1711h: Add regulator support when source vbus 



Add regulator support when source vbus

Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Acked-by: default avatarHeikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: default avatarGene Chen <gene_chen@richtek.com>
Link: https://lore.kernel.org/r/20220805071714.150882-4-gene.chen.richtek@gmail.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 3b77b271

drivers/usb/typec/tcpm/tcpci_rt1711h.c

+28 −0
Original line number Diff line number Diff line
@@ -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);