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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/usb/dwc3/dwc3-omap.c
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@@ -1,8 +1,8 @@
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 // SPDX-License-Identifier: GPL-2.0
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-/**
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+/*
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  * dwc3-omap.c - OMAP Specific Glue layer
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  *
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- * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
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+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com
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  *
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  * Authors: Felipe Balbi <balbi@ti.com>,
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  *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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@@ -14,7 +14,6 @@
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 #include <linux/irq.h>
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 #include <linux/interrupt.h>
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 #include <linux/platform_device.h>
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-#include <linux/platform_data/dwc3-omap.h>
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 #include <linux/pm_runtime.h>
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 #include <linux/dma-mapping.h>
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 #include <linux/ioport.h>
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@@ -105,6 +104,12 @@
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 #define USBOTGSS_UTMI_OTG_CTRL_SESSEND		BIT(3)
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 #define USBOTGSS_UTMI_OTG_CTRL_SESSVALID	BIT(2)
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 #define USBOTGSS_UTMI_OTG_CTRL_VBUSVALID	BIT(1)
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+
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+enum dwc3_omap_utmi_mode {
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+	DWC3_OMAP_UTMI_MODE_UNKNOWN = 0,
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+	DWC3_OMAP_UTMI_MODE_HW,
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+	DWC3_OMAP_UTMI_MODE_SW,
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+};
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 struct dwc3_omap {
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 	struct device		*dev;
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@@ -237,7 +242,7 @@
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 		break;
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 	case OMAP_DWC3_ID_FLOAT:
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-		if (omap->vbus_reg)
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+		if (omap->vbus_reg && regulator_is_enabled(omap->vbus_reg))
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 			regulator_disable(omap->vbus_reg);
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 		val = dwc3_omap_read_utmi_ctrl(omap);
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 		val |= USBOTGSS_UTMI_OTG_CTRL_IDDIG;
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@@ -451,14 +456,11 @@
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 	struct device_node	*node = pdev->dev.of_node;
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 	struct dwc3_omap	*omap;
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-	struct resource		*res;
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 	struct device		*dev = &pdev->dev;
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 	struct regulator	*vbus_reg = NULL;
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 	int			ret;
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 	int			irq;
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-
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-	u32			reg;
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 	void __iomem		*base;
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@@ -474,13 +476,10 @@
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 	platform_set_drvdata(pdev, omap);
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477
 
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 	irq = platform_get_irq(pdev, 0);
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-	if (irq < 0) {
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-		dev_err(dev, "missing IRQ resource: %d\n", irq);
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+	if (irq < 0)
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 		return irq;
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-	}
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-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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-	base = devm_ioremap_resource(dev, res);
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+	base = devm_platform_ioremap_resource(pdev, 0);
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 	if (IS_ERR(base))
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 		return PTR_ERR(base);
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@@ -506,9 +505,6 @@
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 	dwc3_omap_map_offset(omap);
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 	dwc3_omap_set_utmi_mode(omap);
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-
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-	/* check the DMA Status */
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-	reg = dwc3_omap_readl(omap->base, USBOTGSS_SYSCONFIG);
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 	ret = dwc3_omap_extcon_register(omap);
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 	if (ret < 0)