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usb: dwc2: make otg clk optional

Browse source 
Fixes commit 09a75e8577
("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.

Acked-by: Eric Anholt <[email protected]>
Signed-off-by: Stefan Wahren <[email protected]>
Cc: Marek Szyprowski <[email protected]>
Acked-by: John Youn <[email protected]>
Tested-by: Marek Szyprowski <[email protected]>
Fixes: 09a75e8577 ("usb: dwc2: refactor common low-level hw code to platform.c")
Signed-off-by: Felipe Balbi <[email protected]>
This commit is contained in:
Stefan Wahren 2015-11-13 17:02:12 +00:00 • committed by Felipe Balbi
commit 8aa90cf2a2
1 changed files with 7 additions and 4 deletions
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11
drivers/usb/dwc2/platform.c
View file

@ -125,9 +125,11 @@ 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);
@ -175,7 +177,8 @@ 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);