diff options
| author | Alexey Charkov <alchark@gmail.com> | 2025-04-25 17:11:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-05-01 18:39:16 +0300 |
| commit | a5c7973539b010874a37a0e846e62ac6f00553ba (patch) | |
| tree | 0de83b578cf57ce9187697c7420425d109de7d46 /drivers/usb/host | |
| parent | 2372f1caeca433c4c01c2482f73fbe057f5168ce (diff) | |
| download | linux-a5c7973539b010874a37a0e846e62ac6f00553ba.tar.xz | |
usb: uhci-platform: Make the clock really optional
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 <stable@kernel.org>
Fixes: 26c502701c52 ("usb: uhci: Add clk support to uhci-platform")
Signed-off-by: Alexey Charkov <alchark@gmail.com>
Link: https://lore.kernel.org/r/20250425-uhci-clock-optional-v1-1-a1d462592f29@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/uhci-platform.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c index a7c934404ebc..62318291f566 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; |