Device tree bindings state that the clock is optional for UHCI platform controllers, and some existing device trees don't provide those - such as those for VIA/WonderMedia devices.
The driver however fails to probe now if no clock is provided, because devm_clk_get returns an error pointer in such case.
Switch to devm_clk_get_optional instead, so that it could probe again on those platforms where no clocks are given.
Cc: stable@vger.kernel.org Fixes: 26c502701c52 ("usb: uhci: Add clk support to uhci-platform") Signed-off-by: Alexey Charkov alchark@gmail.com --- drivers/usb/host/uhci-platform.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c index a7c934404ebc7ed74f64265fafa7830809979ba5..62318291f5664c9ec94f24535c71d962e28354f3 100644 --- a/drivers/usb/host/uhci-platform.c +++ b/drivers/usb/host/uhci-platform.c @@ -121,7 +121,7 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev) }
/* Get and enable clock if any specified */ - uhci->clk = devm_clk_get(&pdev->dev, NULL); + uhci->clk = devm_clk_get_optional(&pdev->dev, NULL); if (IS_ERR(uhci->clk)) { ret = PTR_ERR(uhci->clk); goto err_rmr;
--- base-commit: 0af2f6be1b4281385b618cb86ad946eded089ac8 change-id: 20250425-uhci-clock-optional-9a9d09560e17
Best regards,