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UPSTREAM: usb: dwc3: Set GUSB2PHYCFG.ENBLSLPM

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GUSB2PHYCFG.ENBLSLPM enables the controller to assert low power signals
to the PHY. Unless disabled via device property, explicitly set
GUSB2PHYCFG.ENBLSLPM as it may not be set by default.

Change-Id: Id31448c50898a8924e3630ca57d710d886ea000b
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: William Wu <william.wu@rock-chips.com>
(cherry picked from commit eafeacf119)
This commit is contained in:
Thinh Nguyen
2018-11-07 18:10:30 -08:00
committed by Tao Huang
parent f28d72c14a
commit b0efb9ece8
1 changed files with 2 additions and 0 deletions
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2
drivers/usb/dwc3/core.c
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@@ -661,6 +661,8 @@ static int dwc3_phy_setup(struct dwc3 *dwc)
if (dwc->dis_enblslpm_quirk)
reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM;
else
reg |= DWC3_GUSB2PHYCFG_ENBLSLPM;
if (dwc->dis_u2_freeclk_exists_quirk)
reg &= ~DWC3_GUSB2PHYCFG_U2_FREECLK_EXISTS;