usb: dwc3: add dis_enblslpm_quirk
Add a quirk to clear the GUSB2PHYCFG.ENBLSLPM bit, which controls
whether the PHY receives the suspend signal from the controller.
Refer to commit ec791d149bca("usb: dwc3: Add dis_enblslpm_quirk")
in Linux Kernel.
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 8d418c9..8b75de0 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -400,6 +400,9 @@
if (dwc->dis_u2_susphy_quirk)
reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
+ if (dwc->dis_enblslpm_quirk)
+ reg &= ~DWC3_GUSB2PHYCFG_ENBLSLPM;
+
dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
mdelay(100);
@@ -721,6 +724,7 @@
dwc->dis_u3_susphy_quirk = dwc3_dev->dis_u3_susphy_quirk;
dwc->dis_u2_susphy_quirk = dwc3_dev->dis_u2_susphy_quirk;
dwc->dis_del_phy_power_chg_quirk = dwc3_dev->dis_del_phy_power_chg_quirk;
+ dwc->dis_enblslpm_quirk = dwc3_dev->dis_enblslpm_quirk;
dwc->tx_de_emphasis_quirk = dwc3_dev->tx_de_emphasis_quirk;
if (dwc3_dev->tx_de_emphasis)
@@ -928,6 +932,8 @@
"snps,dis_u2_susphy_quirk");
dwc->dis_del_phy_power_chg_quirk = dev_read_bool(dev,
"snps,dis-del-phy-power-chg-quirk");
+ dwc->dis_enblslpm_quirk = dev_read_bool(dev,
+ "snps,dis_enblslpm_quirk");
dwc->tx_de_emphasis_quirk = dev_read_bool(dev,
"snps,tx_de_emphasis_quirk");
tmp = dev_read_u8_array_ptr(dev, "snps,tx_de_emphasis", 1);