change wifi driver to cypress

hc

2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/drivers/usb/dwc3/dwc3-keystone.c
..
..
@@ -2,7 +2,7 @@
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 /**
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  * dwc3-keystone.c - Keystone Specific Glue layer
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  *
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- * Copyright (C) 2010-2013 Texas Instruments Incorporated - http://www.ti.com
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+ * Copyright (C) 2010-2013 Texas Instruments Incorporated - https://www.ti.com
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  *
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  * Author: WingMan Kwok <w-kwok2@ti.com>
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  */
..
..
@@ -14,6 +14,7 @@
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 #include <linux/dma-mapping.h>
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 #include <linux/io.h>
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 #include <linux/of_platform.h>
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+#include <linux/phy/phy.h>
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 #include <linux/pm_runtime.h>
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19
 
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 /* USBSS register offsets */
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..
@@ -34,6 +35,7 @@
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 struct dwc3_keystone {
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 	struct device			*dev;
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 	void __iomem			*usbss;
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+	struct phy			*usb3_phy;
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 };
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40
 
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 static inline u32 kdwc3_readl(void __iomem *base, u32 offset)
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@@ -81,7 +83,6 @@
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 	struct device		*dev = &pdev->dev;
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 	struct device_node	*node = pdev->dev.of_node;
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 	struct dwc3_keystone	*kdwc;
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-	struct resource		*res;
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 	int			error, irq;
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 	kdwc = devm_kzalloc(dev, sizeof(*kdwc), GFP_KERNEL);
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@@ -92,13 +93,37 @@
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 	kdwc->dev = dev;
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-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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-	kdwc->usbss = devm_ioremap_resource(dev, res);
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+	kdwc->usbss = devm_platform_ioremap_resource(pdev, 0);
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 	if (IS_ERR(kdwc->usbss))
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 		return PTR_ERR(kdwc->usbss);
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-	pm_runtime_enable(kdwc->dev);
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+	/* PSC dependency on AM65 needs SERDES0 to be powered before USB0 */
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+	kdwc->usb3_phy = devm_phy_optional_get(dev, "usb3-phy");
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+	if (IS_ERR(kdwc->usb3_phy))
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+		return dev_err_probe(dev, PTR_ERR(kdwc->usb3_phy), "couldn't get usb3 phy\n");
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+	phy_pm_runtime_get_sync(kdwc->usb3_phy);
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+
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+	error = phy_reset(kdwc->usb3_phy);
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+	if (error < 0) {
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+		dev_err(dev, "usb3 phy reset failed: %d\n", error);
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+		return error;
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+	}
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+
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+	error = phy_init(kdwc->usb3_phy);
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+	if (error < 0) {
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+		dev_err(dev, "usb3 phy init failed: %d\n", error);
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+		return error;
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+	}
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+
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+	error = phy_power_on(kdwc->usb3_phy);
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+	if (error < 0) {
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+		dev_err(dev, "usb3 phy power on failed: %d\n", error);
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+		phy_exit(kdwc->usb3_phy);
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+		return error;
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+	}
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+
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+	pm_runtime_enable(kdwc->dev);
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 	error = pm_runtime_get_sync(kdwc->dev);
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 	if (error < 0) {
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 		dev_err(kdwc->dev, "pm_runtime_get_sync failed, error %d\n",
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@@ -106,9 +131,12 @@
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 		goto err_irq;
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 	}
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+	/* IRQ processing not required currently for AM65 */
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+	if (of_device_is_compatible(node, "ti,am654-dwc3"))
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+		goto skip_irq;
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+
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 	irq = platform_get_irq(pdev, 0);
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 	if (irq < 0) {
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-		dev_err(&pdev->dev, "missing irq\n");
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 		error = irq;
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 		goto err_irq;
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 	}
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@@ -123,6 +151,7 @@
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 	kdwc3_enable_irqs(kdwc);
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153
 
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+skip_irq:
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 	error = of_platform_populate(node, NULL, NULL, dev);
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 	if (error) {
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 		dev_err(&pdev->dev, "failed to create dwc3 core\n");
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@@ -136,6 +165,9 @@
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 err_irq:
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 	pm_runtime_put_sync(kdwc->dev);
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 	pm_runtime_disable(kdwc->dev);
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+	phy_power_off(kdwc->usb3_phy);
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+	phy_exit(kdwc->usb3_phy);
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+	phy_pm_runtime_put_sync(kdwc->usb3_phy);
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 	return error;
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 }
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@@ -152,11 +184,18 @@
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 static int kdwc3_remove(struct platform_device *pdev)
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 {
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 	struct dwc3_keystone *kdwc = platform_get_drvdata(pdev);
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+	struct device_node *node = pdev->dev.of_node;
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-	kdwc3_disable_irqs(kdwc);
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+	if (!of_device_is_compatible(node, "ti,am654-dwc3"))
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+		kdwc3_disable_irqs(kdwc);
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+
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 	device_for_each_child(&pdev->dev, NULL, kdwc3_remove_core);
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 	pm_runtime_put_sync(kdwc->dev);
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 	pm_runtime_disable(kdwc->dev);
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+
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+	phy_power_off(kdwc->usb3_phy);
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+	phy_exit(kdwc->usb3_phy);
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+	phy_pm_runtime_put_sync(kdwc->usb3_phy);
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 	platform_set_drvdata(pdev, NULL);
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..
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@@ -165,6 +204,7 @@
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 static const struct of_device_id kdwc3_of_match[] = {
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 	{ .compatible = "ti,keystone-dwc3", },
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+	{ .compatible = "ti,am654-dwc3" },
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 	{},
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 };
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 MODULE_DEVICE_TABLE(of, kdwc3_of_match);