From a592e0673a20c57468d5296b57130a45cb0ff487 Mon Sep 17 00:00:00 2001 From: Michael Grzeschik Date: Fri, 4 Apr 2025 01:17:20 +0200 Subject: [PATCH] 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: Michael Grzeschik Reviewed-by: Heikki Krogerus Link: https://lore.kernel.org/r/20250404-ml-topic-tcpci-v1-1-4442c7d0ee1e@pengutronix.de Signed-off-by: Greg Kroah-Hartman --- drivers/usb/typec/tcpm/tcpci.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c index 19ab6647af70..a56e31b20c21 100644 --- a/drivers/usb/typec/tcpm/tcpci.c +++ b/drivers/usb/typec/tcpm/tcpci.c @@ -17,6 +17,7 @@ #include #include #include +#include #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; -- 2.25.1