modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/drivers/usb/host/ohci-at91.c
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@@ -115,7 +115,6 @@
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 static void at91_stop_hc(struct platform_device *pdev)
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 {
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 	struct usb_hcd *hcd = platform_get_drvdata(pdev);
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-	struct ohci_regs __iomem *regs = hcd->regs;
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 	struct ohci_at91_priv *ohci_at91 = hcd_to_ohci_at91_priv(hcd);
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 	dev_dbg(&pdev->dev, "stop\n");
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@@ -123,7 +122,7 @@
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 	/*
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 	 * Put the USB host controller into reset.
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 	 */
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-	writel(0, &regs->control);
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+	usb_hcd_platform_shutdown(pdev);
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 	/*
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 	 * Stop the USB clocks.
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@@ -141,8 +140,11 @@
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 	struct regmap *regmap;
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 	regmap = syscon_regmap_lookup_by_compatible("atmel,sama5d2-sfr");
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-	if (IS_ERR(regmap))
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-		regmap = NULL;
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+	if (IS_ERR(regmap)) {
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+		regmap = syscon_regmap_lookup_by_compatible("microchip,sam9x60-sfr");
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+		if (IS_ERR(regmap))
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+			regmap = NULL;
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+	}
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 	return regmap;
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 }
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@@ -151,7 +153,7 @@
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 /* always called with process context; sleeping is OK */
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-/**
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+/*
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  * usb_hcd_at91_probe - initialize AT91-based HCDs
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  * Context: !in_interrupt()
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  *
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@@ -242,9 +244,8 @@
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 /* may be called with controller, bus, and devices active */
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-/**
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+/*
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  * usb_hcd_at91_remove - shutdown processing for AT91-based HCDs
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- * @dev: USB Host Controller being removed
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  * Context: !in_interrupt()
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  *
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  * Reverses the effect of usb_hcd_at91_probe(), first invoking
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@@ -605,8 +606,6 @@
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 	if (ohci_at91->wakeup)
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 		enable_irq_wake(hcd->irq);
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-	ohci_at91_port_suspend(ohci_at91->sfr_regmap, 1);
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-
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 	ret = ohci_suspend(hcd, ohci_at91->wakeup);
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 	if (ret) {
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 		if (ohci_at91->wakeup)
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@@ -625,7 +624,11 @@
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 		/* flush the writes */
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 		(void) ohci_readl (ohci, &ohci->regs->control);
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+		msleep(1);
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+		ohci_at91_port_suspend(ohci_at91->sfr_regmap, 1);
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 		at91_stop_clock(ohci_at91);
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+	} else {
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+		ohci_at91_port_suspend(ohci_at91->sfr_regmap, 1);
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 	}
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 	return ret;
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@@ -637,14 +640,20 @@
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 	struct usb_hcd	*hcd = dev_get_drvdata(dev);
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 	struct ohci_at91_priv *ohci_at91 = hcd_to_ohci_at91_priv(hcd);
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+	ohci_at91_port_suspend(ohci_at91->sfr_regmap, 0);
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+
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 	if (ohci_at91->wakeup)
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 		disable_irq_wake(hcd->irq);
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+	else
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+		at91_start_clock(ohci_at91);
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-	at91_start_clock(ohci_at91);
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-
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-	ohci_resume(hcd, false);
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-
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-	ohci_at91_port_suspend(ohci_at91->sfr_regmap, 0);
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+	/*
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+	 * According to the comment in ohci_hcd_at91_drv_suspend()
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+	 * we need to do a reset if the 48Mhz clock was stopped,
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+	 * that is, if ohci_at91->wakeup is clear. Tell ohci_resume()
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+	 * to reset in this case by setting its "hibernated" flag.
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+	 */
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+	ohci_resume(hcd, !ohci_at91->wakeup);
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 	return 0;
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 }