diff mbox series

usb: typec: tcpci: add regulator support

Message ID 20250404-ml-topic-tcpci-v1-1-4442c7d0ee1e@pengutronix.de
State New
Headers show
Series usb: typec: tcpci: add regulator support | expand

Commit Message

Michael Grzeschik April 3, 2025, 11:17 p.m. UTC 
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 <m.grzeschik@pengutronix.de>
---
 drivers/usb/typec/tcpm/tcpci.c | 5 +++++
 1 file changed, 5 insertions(+)


---
base-commit: a1b5bd45d4ee58af4f56e49497b8c3db96d8f8a3
change-id: 20250404-ml-topic-tcpci-524d1d6bfede

Best regards,
diff mbox series

Patch

diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c
index 19ab6647af706..a56e31b20c214 100644
--- a/drivers/usb/typec/tcpm/tcpci.c
+++ b/drivers/usb/typec/tcpm/tcpci.c
@@ -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;