[PATCH] usb: typec: intel_pmc_mux: Defer probe if SCU IPC isn't present

From: Tomasz Michalec
Date: Tue Jun 10 2025 - 11:44:39 EST


If pmc_usb_probe is called before SCU IPC is registered, pmc_usb_probe
will fail.

Return -EPROBE_DEFER when pmc_usb_probe doesn't get SCU IPC device, so
the probe function can be called again after SCU IPC is initialized.

Signed-off-by: Tomasz Michalec <tmichalec@xxxxxxxxxx>
---
drivers/usb/typec/mux/intel_pmc_mux.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/typec/mux/intel_pmc_mux.c b/drivers/usb/typec/mux/intel_pmc_mux.c
index 65dda9183e6f..1698428654ab 100644
--- a/drivers/usb/typec/mux/intel_pmc_mux.c
+++ b/drivers/usb/typec/mux/intel_pmc_mux.c
@@ -754,7 +754,7 @@ static int pmc_usb_probe(struct platform_device *pdev)

pmc->ipc = devm_intel_scu_ipc_dev_get(&pdev->dev);
if (!pmc->ipc)
- return -ENODEV;
+ return -EPROBE_DEFER;

pmc->dev = &pdev->dev;

--
2.50.0.rc0.604.gd4ff7b7c86-goog