Fixes commit 09a75e857790
("usb: dwc2: refactor common low-level hw code to platform.c")
The above commit consolidated the low-level phy access into a common
location. This change made the otg clk a requirement and broke some
platforms when it was moved into platform.c.
So make clk handling optional again.
Signed-off-by: Stefan Wahren <stefan.wahren@xxxxxxxx>
Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Acked-by: John Youn <johnyoun@xxxxxxxxxxxx>
Tested-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Fixes: 09a75e857790 ("usb: dwc2: refactor common low-level hw code to platform.c")
---
drivers/usb/dwc2/platform.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index 5c3704d..947c2e8 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -124,9 +124,11 @@ static int __dwc2_lowlevel_hw_enable(struct dwc2_hsotg *hsotg)
if (ret)
return ret;
- ret = clk_prepare_enable(hsotg->clk);
- if (ret)
- return ret;
+ if (hsotg->clk) {
+ ret = clk_prepare_enable(hsotg->clk);
+ if (ret)
+ return ret;
+ }
if (hsotg->uphy)
ret = usb_phy_init(hsotg->uphy);
@@ -174,7 +176,8 @@ static int __dwc2_lowlevel_hw_disable(struct dwc2_hsotg *hsotg)
if (ret)
return ret;
- clk_disable_unprepare(hsotg->clk);
+ if (hsotg->clk)
+ clk_disable_unprepare(hsotg->clk);
ret = regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies),
hsotg->supplies);
--
1.7.9.5
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