1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * omap-control-phy.c - The PHY part of control module.
5  * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
20  * omap_control_pcie_pcs - set the PCS delay count
40 	if (control_phy->type != OMAP_CTRL_TYPE_PCIE) {  in omap_control_pcie_pcs()
45 	val = readl(control_phy->pcie_pcs);  in omap_control_pcie_pcs()
49 	writel(val, control_phy->pcie_pcs);  in omap_control_pcie_pcs()
54  * omap_control_phy_power - power on/off the phy using control module reg
75 	if (control_phy->type == OMAP_CTRL_TYPE_OTGHS)  in omap_control_phy_power()
78 	val = readl(control_phy->power);  in omap_control_phy_power()
80 	switch (control_phy->type) {  in omap_control_phy_power()
90 		rate = clk_get_rate(control_phy->sys_clk);  in omap_control_phy_power()
129 			__func__, control_phy->type);  in omap_control_phy_power()
133 	writel(val, control_phy->power);  in omap_control_phy_power()
138  * omap_control_usb_host_mode - set AVALID, VBUSVALID and ID pin in grounded
148 	val = readl(ctrl_phy->otghs_control);  in omap_control_usb_host_mode()
151 	writel(val, ctrl_phy->otghs_control);  in omap_control_usb_host_mode()
155  * omap_control_usb_device_mode - set AVALID, VBUSVALID and ID pin in high
166 	val = readl(ctrl_phy->otghs_control);  in omap_control_usb_device_mode()
170 	writel(val, ctrl_phy->otghs_control);  in omap_control_usb_device_mode()
174  * omap_control_usb_set_sessionend - Enable SESSIONEND and IDIG to high
185 	val = readl(ctrl_phy->otghs_control);  in omap_control_usb_set_sessionend()
188 	writel(val, ctrl_phy->otghs_control);  in omap_control_usb_set_sessionend()
192  * omap_control_usb_set_mode - Calls to functions to set USB in one of host mode
214 	if (ctrl_phy->type != OMAP_CTRL_TYPE_OTGHS)  in omap_control_usb_set_mode()
228 		dev_vdbg(dev, "invalid omap control usb mode\n");  in omap_control_usb_set_mode()
242 		.compatible = "ti,control-phy-otghs",
246 		.compatible = "ti,control-phy-usb2",
250 		.compatible = "ti,control-phy-pipe3",
254 		.compatible = "ti,control-phy-pcie",
258 		.compatible = "ti,control-phy-usb2-dra7",
262 		.compatible = "ti,control-phy-usb2-am437",
275 	of_id = of_match_device(omap_control_phy_id_table, &pdev->dev);  in omap_control_phy_probe()
277 		return -EINVAL;  in omap_control_phy_probe()
279 	control_phy = devm_kzalloc(&pdev->dev, sizeof(*control_phy),  in omap_control_phy_probe()
282 		return -ENOMEM;  in omap_control_phy_probe()
284 	control_phy->dev = &pdev->dev;  in omap_control_phy_probe()
285 	control_phy->type = *(enum omap_control_phy_type *)of_id->data;  in omap_control_phy_probe()
287 	if (control_phy->type == OMAP_CTRL_TYPE_OTGHS) {  in omap_control_phy_probe()
290 		control_phy->otghs_control = devm_ioremap_resource(  in omap_control_phy_probe()
291 			&pdev->dev, res);  in omap_control_phy_probe()
292 		if (IS_ERR(control_phy->otghs_control))  in omap_control_phy_probe()
293 			return PTR_ERR(control_phy->otghs_control);  in omap_control_phy_probe()
297 		control_phy->power = devm_ioremap_resource(&pdev->dev, res);  in omap_control_phy_probe()
298 		if (IS_ERR(control_phy->power)) {  in omap_control_phy_probe()
299 			dev_err(&pdev->dev, "Couldn't get power register\n");  in omap_control_phy_probe()
300 			return PTR_ERR(control_phy->power);  in omap_control_phy_probe()
304 	if (control_phy->type == OMAP_CTRL_TYPE_PIPE3 ||  in omap_control_phy_probe()
305 	    control_phy->type == OMAP_CTRL_TYPE_PCIE) {  in omap_control_phy_probe()
306 		control_phy->sys_clk = devm_clk_get(control_phy->dev,  in omap_control_phy_probe()
308 		if (IS_ERR(control_phy->sys_clk)) {  in omap_control_phy_probe()
310 			return -EINVAL;  in omap_control_phy_probe()
314 	if (control_phy->type == OMAP_CTRL_TYPE_PCIE) {  in omap_control_phy_probe()
317 		control_phy->pcie_pcs = devm_ioremap_resource(&pdev->dev, res);  in omap_control_phy_probe()
318 		if (IS_ERR(control_phy->pcie_pcs))  in omap_control_phy_probe()
319 			return PTR_ERR(control_phy->pcie_pcs);  in omap_control_phy_probe()
322 	dev_set_drvdata(control_phy->dev, control_phy);  in omap_control_phy_probe()
330 		.name	= "omap-control-phy",
349 MODULE_DESCRIPTION("OMAP Control Module PHY Driver");