disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/usb/dwc3/ulpi.c
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@@ -1,5 +1,5 @@
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 // SPDX-License-Identifier: GPL-2.0
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-/**
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+/*
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  * ulpi.c - DesignWare USB3 Controller's ULPI PHY interface
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  *
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  * Copyright (C) 2015 Intel Corporation
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@@ -24,7 +24,7 @@
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 static int dwc3_ulpi_busyloop(struct dwc3 *dwc, u8 addr, bool read)
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 {
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 	unsigned long ns = 5L * DWC3_ULPI_BASE_DELAY;
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-	unsigned int count = 1000;
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+	unsigned int count = 10000;
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 	u32 reg;
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 	if (addr >= ULPI_EXT_VENDOR_SPECIFIC)
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@@ -32,6 +32,10 @@
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 	if (read)
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 		ns += DWC3_ULPI_BASE_DELAY;
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+
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+	reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
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+	if (reg & DWC3_GUSB2PHYCFG_SUSPHY)
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+		usleep_range(1000, 1200);
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 	while (count--) {
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 		ndelay(ns);
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@@ -50,12 +54,6 @@
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 	u32 reg;
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 	int ret;
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-	reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
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-	if (reg & DWC3_GUSB2PHYCFG_SUSPHY) {
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-		reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
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-		dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
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-	}
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-
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 	reg = DWC3_GUSB2PHYACC_NEWREGREQ | DWC3_ULPI_ADDR(addr);
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 	dwc3_writel(dwc->regs, DWC3_GUSB2PHYACC(0), reg);
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@@ -72,12 +70,6 @@
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 {
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 	struct dwc3 *dwc = dev_get_drvdata(dev);
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 	u32 reg;
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-
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-	reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
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-	if (reg & DWC3_GUSB2PHYCFG_SUSPHY) {
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-		reg &= ~DWC3_GUSB2PHYCFG_SUSPHY;
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-		dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
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-	}
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 	reg = DWC3_GUSB2PHYACC_NEWREGREQ | DWC3_ULPI_ADDR(addr);
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 	reg |= DWC3_GUSB2PHYACC_WRITE | val;