Commit a592e067 authored by Michal Grzeschik's avatar Michal Grzeschik Committed by Greg Kroah-Hartman
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usb: typec: tcpci: add regulator support 



The tcpci chip vbus pin is possibly driven by an regulator. This patch
is adding support to enable an optional vdd regulator before probing.

Signed-off-by: default avatarMichael Grzeschik <m.grzeschik@pengutronix.de>
Reviewed-by: default avatarHeikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20250404-ml-topic-tcpci-v1-1-4442c7d0ee1e@pengutronix.de


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8a50da84

drivers/usb/typec/tcpm/tcpci.c

+5 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
#include <linux/usb/tcpci.h>

#include <linux/usb/tcpm.h>

#include <linux/usb/typec.h>

#include <linux/regulator/consumer.h>



#define	PD_RETRY_COUNT_DEFAULT			3

#define	PD_RETRY_COUNT_3_0_OR_HIGHER		2
@@ -905,6 +906,10 @@ static int tcpci_probe(struct i2c_client *client) 
	int err;

	u16 val = 0;



	err = devm_regulator_get_enable_optional(&client->dev, "vdd");

	if (err && err != -ENODEV)

		return dev_err_probe(&client->dev, err, "Failed to get regulator\n");



	chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);

	if (!chip)

		return -ENOMEM;