[PATCH] usb: typec: mux: gpio-sbu-mux: fix SBU path not enabled on orientation change

[PATCH] usb: typec: mux: gpio-sbu-mux: fix SBU path not enabled on orientation change

[Peng Fan (OSS)]

From: Peng Fan <peng.fan@nxp.com>

The swapped state is updated, but the mux is never enabled when
orientation is set to TYPEC_ORIENTATION_NORMAL or
TYPEC_ORIENTATION_REVERSE, which means the SBU mux enable GPIO would
never be asserted when a cable is plugged in with a known orientation,
leaving the SBU lines disconnected.

Fix by setting enabled=true in both NORMAL and REVERSE orientation
cases, mirroring the disable in TYPEC_ORIENTATION_NONE.

Fixes: 065ded319d39 ("usb: typec: mux: Introduce GPIO-based SBU mux")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 drivers/usb/typec/mux/gpio-sbu-mux.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/typec/mux/gpio-sbu-mux.c b/drivers/usb/typec/mux/gpio-sbu-mux.c
index 1834f1a2dd9d..4de7456794ad 100644
--- a/drivers/usb/typec/mux/gpio-sbu-mux.c
+++ b/drivers/usb/typec/mux/gpio-sbu-mux.c
@@ -40,9 +40,11 @@ static int gpio_sbu_switch_set(struct typec_switch_dev *sw,
 		enabled = false;
 		break;
 	case TYPEC_ORIENTATION_NORMAL:
+		enabled = true;
 		swapped = false;
 		break;
 	case TYPEC_ORIENTATION_REVERSE:
+		enabled = true;
 		swapped = true;
 		break;
 	}

---
base-commit: 4477a78374a57c3809b172ad30cceabda48c47c6
change-id: 20260817-typec-mux-d0e148129c08

Best regards,
--  
Peng Fan <peng.fan@nxp.com>

Re: [PATCH] usb: typec: mux: gpio-sbu-mux: fix SBU path not enabled on orientation change

[Peng Fan]

Ignore this patch. The patch is not correct.

Thanks
Peng.
On Mon, Aug 17, 2026 at 10:11:07AM +0800, Peng Fan (OSS) wrote:
>From: Peng Fan <peng.fan@nxp.com>
>
>The swapped state is updated, but the mux is never enabled when
>orientation is set to TYPEC_ORIENTATION_NORMAL or
>TYPEC_ORIENTATION_REVERSE, which means the SBU mux enable GPIO would
>never be asserted when a cable is plugged in with a known orientation,
>leaving the SBU lines disconnected.
>
>Fix by setting enabled=true in both NORMAL and REVERSE orientation
>cases, mirroring the disable in TYPEC_ORIENTATION_NONE.
>
>Fixes: 065ded319d39 ("usb: typec: mux: Introduce GPIO-based SBU mux")
>Signed-off-by: Peng Fan <peng.fan@nxp.com>
>---
> drivers/usb/typec/mux/gpio-sbu-mux.c | 2 ++
> 1 file changed, 2 insertions(+)
>
>diff --git a/drivers/usb/typec/mux/gpio-sbu-mux.c b/drivers/usb/typec/mux/gpio-sbu-mux.c
>index 1834f1a2dd9d..4de7456794ad 100644
>--- a/drivers/usb/typec/mux/gpio-sbu-mux.c
>+++ b/drivers/usb/typec/mux/gpio-sbu-mux.c
>@@ -40,9 +40,11 @@ static int gpio_sbu_switch_set(struct typec_switch_dev *sw,
> 		enabled = false;
> 		break;
> 	case TYPEC_ORIENTATION_NORMAL:
>+		enabled = true;
> 		swapped = false;
> 		break;
> 	case TYPEC_ORIENTATION_REVERSE:
>+		enabled = true;
> 		swapped = true;
> 		break;
> 	}
>
>---
>base-commit: 4477a78374a57c3809b172ad30cceabda48c47c6
>change-id: 20260817-typec-mux-d0e148129c08
>
>Best regards,
>--  
>Peng Fan <peng.fan@nxp.com>
>
>
>