[PATCH 2/2] usb: typec: mux: gpio-sbu: enable when only used for orientation

From: Fabrice Gasnier

Date: Tue Aug 25 2026 - 09:06:06 EST


When used as orientation-switch only (no mode-switch, e.g. no altmode),
the optional enable gpio remains disabled.
Enable it from the switch_set() routine, in this case, when the
orientation is set and the enable-gpios property has been provided.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@xxxxxxxxxxx>
---
drivers/usb/typec/mux/gpio-sbu-mux.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/usb/typec/mux/gpio-sbu-mux.c b/drivers/usb/typec/mux/gpio-sbu-mux.c
index 1834f1a2dd9d..4151d78e3b8d 100644
--- a/drivers/usb/typec/mux/gpio-sbu-mux.c
+++ b/drivers/usb/typec/mux/gpio-sbu-mux.c
@@ -17,6 +17,7 @@ struct gpio_sbu_mux {

struct typec_switch_dev *sw;
struct typec_mux_dev *mux;
+ bool mode_switch;

struct mutex lock; /* protect enabled and swapped */
bool enabled;
@@ -40,9 +41,13 @@ static int gpio_sbu_switch_set(struct typec_switch_dev *sw,
enabled = false;
break;
case TYPEC_ORIENTATION_NORMAL:
+ if (!sbu_mux->mode_switch)
+ enabled = true;
swapped = false;
break;
case TYPEC_ORIENTATION_REVERSE:
+ if (!sbu_mux->mode_switch)
+ enabled = true;
swapped = true;
break;
}
@@ -125,6 +130,8 @@ static int gpio_sbu_mux_probe(struct platform_device *pdev)
return dev_err_probe(dev, PTR_ERR(sbu_mux->sw),
"failed to register typec switch\n");

+ sbu_mux->mode_switch = device_property_read_bool(dev, "mode-switch");
+
mux_desc.drvdata = sbu_mux;
mux_desc.fwnode = dev_fwnode(dev);
mux_desc.set = gpio_sbu_mux_set;

--
2.43.0