1 // SPDX-License-Identifier: GPL-2.0-only
20 #include <linux/phy/phy.h>
22 /* USB PXA1928 PHY mapping */
135 	struct phy		*phy;  member
149 static int mv_usb2_phy_28nm_init(struct phy *phy)  in mv_usb2_phy_28nm_init()  argument
151 	struct mv_usb2_phy *mv_phy = phy_get_drvdata(phy);  in mv_usb2_phy_28nm_init()
152 	struct platform_device *pdev = mv_phy->pdev;  in mv_usb2_phy_28nm_init()
153 	void __iomem *base = mv_phy->base;  in mv_usb2_phy_28nm_init()
157 	clk_prepare_enable(mv_phy->clk);  in mv_usb2_phy_28nm_init()
207 	/* Make sure PHY Calibration is ready */  in mv_usb2_phy_28nm_init()
212 		dev_warn(&pdev->dev, "USB PHY PLL calibrate not done after 100mS.");  in mv_usb2_phy_28nm_init()
218 		dev_warn(&pdev->dev, "USB PHY RX SQ calibrate not done after 100mS.");  in mv_usb2_phy_28nm_init()
221 	/* Make sure PHY PLL is ready */  in mv_usb2_phy_28nm_init()
224 		dev_warn(&pdev->dev, "PLL_READY not set after 100mS.");  in mv_usb2_phy_28nm_init()
230 	clk_disable_unprepare(mv_phy->clk);  in mv_usb2_phy_28nm_init()
234 static int mv_usb2_phy_28nm_power_on(struct phy *phy)  in mv_usb2_phy_28nm_power_on()  argument
236 	struct mv_usb2_phy *mv_phy = phy_get_drvdata(phy);  in mv_usb2_phy_28nm_power_on()
237 	void __iomem *base = mv_phy->base;  in mv_usb2_phy_28nm_power_on()
247 static int mv_usb2_phy_28nm_power_off(struct phy *phy)  in mv_usb2_phy_28nm_power_off()  argument
249 	struct mv_usb2_phy *mv_phy = phy_get_drvdata(phy);  in mv_usb2_phy_28nm_power_off()
250 	void __iomem *base = mv_phy->base;  in mv_usb2_phy_28nm_power_off()
260 static int mv_usb2_phy_28nm_exit(struct phy *phy)  in mv_usb2_phy_28nm_exit()  argument
262 	struct mv_usb2_phy *mv_phy = phy_get_drvdata(phy);  in mv_usb2_phy_28nm_exit()
263 	void __iomem *base = mv_phy->base;  in mv_usb2_phy_28nm_exit()
270 	/* power down PHY Analog part */  in mv_usb2_phy_28nm_exit()
275 	/* power down PHY OTG part */  in mv_usb2_phy_28nm_exit()
280 	clk_disable_unprepare(mv_phy->clk);  in mv_usb2_phy_28nm_exit()
297 	mv_phy = devm_kzalloc(&pdev->dev, sizeof(*mv_phy), GFP_KERNEL);  in mv_usb2_phy_probe()
299 		return -ENOMEM;  in mv_usb2_phy_probe()
301 	mv_phy->pdev = pdev;  in mv_usb2_phy_probe()
303 	mv_phy->clk = devm_clk_get(&pdev->dev, NULL);  in mv_usb2_phy_probe()
304 	if (IS_ERR(mv_phy->clk)) {  in mv_usb2_phy_probe()
305 		dev_err(&pdev->dev, "failed to get clock.\n");  in mv_usb2_phy_probe()
306 		return PTR_ERR(mv_phy->clk);  in mv_usb2_phy_probe()
309 	mv_phy->base = devm_platform_ioremap_resource(pdev, 0);  in mv_usb2_phy_probe()
310 	if (IS_ERR(mv_phy->base))  in mv_usb2_phy_probe()
311 		return PTR_ERR(mv_phy->base);  in mv_usb2_phy_probe()
313 	mv_phy->phy = devm_phy_create(&pdev->dev, pdev->dev.of_node, &usb_ops);  in mv_usb2_phy_probe()
314 	if (IS_ERR(mv_phy->phy))  in mv_usb2_phy_probe()
315 		return PTR_ERR(mv_phy->phy);  in mv_usb2_phy_probe()
317 	phy_set_drvdata(mv_phy->phy, mv_phy);  in mv_usb2_phy_probe()
319 	phy_provider = devm_of_phy_provider_register(&pdev->dev, of_phy_simple_xlate);  in mv_usb2_phy_probe()
324 	{ .compatible = "marvell,pxa1928-usb-phy", },
332 		.name   = "mv-usb2-phy",
339 MODULE_DESCRIPTION("Marvell USB2 phy driver");