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usb: dwc3: core: only set DEV_FORCE_20_CLK_FOR_30_CLK for high speed

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Fixes: 5f0c2578ed ("usb: dwc3: core: do not use 3.0 clock when operating in 2.0 mode")
Change-Id: I7082d996979c4f52f898403e25853644e956cf48
Signed-off-by: William Wu <william.wu@rock-chips.com>
This commit is contained in:
William Wu
2020-11-11 16:29:05 +08:00
committed by Tao Huang
parent 096abe6464
commit fefd47dc10
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/dwc3/core.c
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@@ -1092,7 +1092,8 @@ static int dwc3_core_init(struct dwc3 *dwc)
if (dwc->parkmode_disable_ss_quirk)
reg |= DWC3_GUCTL1_PARKMODE_DISABLE_SS;
if (dwc->maximum_speed <= USB_SPEED_HIGH)
if (dwc->maximum_speed == USB_SPEED_HIGH ||
dwc->maximum_speed == USB_SPEED_FULL)
reg |= DWC3_GUCTL1_DEV_FORCE_20_CLK_FOR_30_CLK;
dwc3_writel(dwc->regs, DWC3_GUCTL1, reg);