1 // SPDX-License-Identifier: GPL-2.0-only
6 #include <linux/ulpi/driver.h>
7 #include <linux/ulpi/regs.h>
10 #include <linux/pinctrl/pinctrl-state.h>
14 #define ULPI_HSIC_CFG		0x30
15 #define ULPI_HSIC_IO_CAL	0x33
18 	struct ulpi *ulpi;  member
29 	struct ulpi *ulpi = uphy->ulpi;  in qcom_usb_hsic_phy_power_on()  local
33 	ret = clk_prepare_enable(uphy->phy_clk);  in qcom_usb_hsic_phy_power_on()
37 	ret = clk_prepare_enable(uphy->cal_clk);  in qcom_usb_hsic_phy_power_on()
41 	ret = clk_prepare_enable(uphy->cal_sleep_clk);  in qcom_usb_hsic_phy_power_on()
46 	ret = ulpi_write(ulpi, ULPI_HSIC_IO_CAL, 0xff);  in qcom_usb_hsic_phy_power_on()
51 	ret = ulpi_write(ulpi, ULPI_HSIC_CFG, 0xa8);  in qcom_usb_hsic_phy_power_on()
56 	pins_default = pinctrl_lookup_state(uphy->pctl, PINCTRL_STATE_DEFAULT);  in qcom_usb_hsic_phy_power_on()
62 	ret = pinctrl_select_state(uphy->pctl, pins_default);  in qcom_usb_hsic_phy_power_on()
67 	ret = ulpi_write(ulpi, ULPI_SET(ULPI_HSIC_CFG), 0x01);  in qcom_usb_hsic_phy_power_on()
71 	/* Disable auto-resume */  in qcom_usb_hsic_phy_power_on()
72 	ret = ulpi_write(ulpi, ULPI_CLR(ULPI_IFC_CTRL),  in qcom_usb_hsic_phy_power_on()
79 	clk_disable_unprepare(uphy->cal_sleep_clk);  in qcom_usb_hsic_phy_power_on()
81 	clk_disable_unprepare(uphy->cal_clk);  in qcom_usb_hsic_phy_power_on()
83 	clk_disable_unprepare(uphy->phy_clk);  in qcom_usb_hsic_phy_power_on()
91 	clk_disable_unprepare(uphy->cal_sleep_clk);  in qcom_usb_hsic_phy_power_off()
92 	clk_disable_unprepare(uphy->cal_clk);  in qcom_usb_hsic_phy_power_off()
93 	clk_disable_unprepare(uphy->phy_clk);  in qcom_usb_hsic_phy_power_off()
95 	return 0;  in qcom_usb_hsic_phy_power_off()
104 static int qcom_usb_hsic_phy_probe(struct ulpi *ulpi)  in qcom_usb_hsic_phy_probe()  argument
110 	uphy = devm_kzalloc(&ulpi->dev, sizeof(*uphy), GFP_KERNEL);  in qcom_usb_hsic_phy_probe()
112 		return -ENOMEM;  in qcom_usb_hsic_phy_probe()
113 	ulpi_set_drvdata(ulpi, uphy);  in qcom_usb_hsic_phy_probe()
115 	uphy->ulpi = ulpi;  in qcom_usb_hsic_phy_probe()
116 	uphy->pctl = devm_pinctrl_get(&ulpi->dev);  in qcom_usb_hsic_phy_probe()
117 	if (IS_ERR(uphy->pctl))  in qcom_usb_hsic_phy_probe()
118 		return PTR_ERR(uphy->pctl);  in qcom_usb_hsic_phy_probe()
120 	uphy->phy_clk = clk = devm_clk_get(&ulpi->dev, "phy");  in qcom_usb_hsic_phy_probe()
124 	uphy->cal_clk = clk = devm_clk_get(&ulpi->dev, "cal");  in qcom_usb_hsic_phy_probe()
128 	uphy->cal_sleep_clk = clk = devm_clk_get(&ulpi->dev, "cal_sleep");  in qcom_usb_hsic_phy_probe()
132 	uphy->phy = devm_phy_create(&ulpi->dev, ulpi->dev.of_node,  in qcom_usb_hsic_phy_probe()
134 	if (IS_ERR(uphy->phy))  in qcom_usb_hsic_phy_probe()
135 		return PTR_ERR(uphy->phy);  in qcom_usb_hsic_phy_probe()
136 	phy_set_drvdata(uphy->phy, uphy);  in qcom_usb_hsic_phy_probe()
138 	p = devm_of_phy_provider_register(&ulpi->dev, of_phy_simple_xlate);  in qcom_usb_hsic_phy_probe()
143 	{ .compatible = "qcom,usb-hsic-phy", },