diff mbox series

usb: typec: mux: fsa4480: add regulator support

Message ID 20250404-ml-topic-typec-mux-fs4480-v1-1-475377ef22a3@pengutronix.de
State New
Headers show
Series usb: typec: mux: fsa4480: add regulator support | expand

Commit Message

Michael Grzeschik April 3, 2025, 11:02 p.m. UTC 
The fsa4480 vcc lane could be driven by some external regulator.
This patch is adding support to enable the regulator before probing.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
---
 drivers/usb/typec/mux/fsa4480.c | 5 +++++
 1 file changed, 5 insertions(+)


---
base-commit: a1b5bd45d4ee58af4f56e49497b8c3db96d8f8a3
change-id: 20250404-ml-topic-typec-mux-fs4480-392407f94f84

Best regards,
diff mbox series

Patch

diff --git a/drivers/usb/typec/mux/fsa4480.c b/drivers/usb/typec/mux/fsa4480.c
index f71dba8bf07c9..c54e42c7e6a16 100644
--- a/drivers/usb/typec/mux/fsa4480.c
+++ b/drivers/usb/typec/mux/fsa4480.c
@@ -12,6 +12,7 @@ 
 #include <linux/regmap.h>
 #include <linux/usb/typec_dp.h>
 #include <linux/usb/typec_mux.h>
+#include <linux/regulator/consumer.h>
 
 #define FSA4480_DEVICE_ID	0x00
  #define FSA4480_DEVICE_ID_VENDOR_ID	GENMASK(7, 6)
@@ -273,6 +274,10 @@  static int fsa4480_probe(struct i2c_client *client)
 	if (IS_ERR(fsa->regmap))
 		return dev_err_probe(dev, PTR_ERR(fsa->regmap), "failed to initialize regmap\n");
 
+	ret = devm_regulator_get_enable_optional(dev, "vcc");
+	if (ret && ret != -ENODEV)
+		return dev_err_probe(dev, ret, "Failed to get regulator\n");
+
 	ret = regmap_read(fsa->regmap, FSA4480_DEVICE_ID, &val);
 	if (ret)
 		return dev_err_probe(dev, -ENODEV, "FSA4480 not found\n");