phy/qualcomm/phy-qcom-usb-ss.c

50 static int qcom_ssphy_do_reset(struct ssphy_priv *priv)
54 	if (!priv->reset_com) {
55 		qcom_ssphy_updatel(priv->base + PHY_CTRL1, PHY_RESET,
58 		qcom_ssphy_updatel(priv->base + PHY_CTRL1, PHY_RESET, 0);
60 		ret = reset_control_assert(priv->reset_com);
62 			dev_err(priv->dev, "Failed to assert reset com\n");
66 		ret = reset_control_assert(priv->reset_phy);
68 			dev_err(priv->dev, "Failed to assert reset phy\n");
74 		ret = reset_control_deassert(priv->reset_com);
76 			dev_err(priv->dev, "Failed to deassert reset com\n");
80 		ret = reset_control_deassert(priv->reset_phy);
82 			dev_err(priv->dev, "Failed to deassert reset phy\n");
92 	struct ssphy_priv *priv = phy_get_drvdata(phy);
95 	ret = regulator_bulk_enable(NUM_BULK_REGS, priv->regs);
99 	ret = clk_bulk_prepare_enable(NUM_BULK_CLKS, priv->clks);
103 	ret = qcom_ssphy_do_reset(priv);
107 	writeb(SWI_PCS_CLK_SEL, priv->base + PHY_CTRL0);
108 	qcom_ssphy_updatel(priv->base + PHY_CTRL4, LANE0_PWR_ON, LANE0_PWR_ON);
109 	qcom_ssphy_updatel(priv->base + PHY_CTRL2, REF_PHY_EN, REF_PHY_EN);
110 	qcom_ssphy_updatel(priv->base + PHY_CTRL4, TST_PWR_DOWN, 0);
114 	clk_bulk_disable_unprepare(NUM_BULK_CLKS, priv->clks);
116 	regulator_bulk_disable(NUM_BULK_REGS, priv->regs);
123 	struct ssphy_priv *priv = phy_get_drvdata(phy);
125 	qcom_ssphy_updatel(priv->base + PHY_CTRL4, LANE0_PWR_ON, 0);
126 	qcom_ssphy_updatel(priv->base + PHY_CTRL2, REF_PHY_EN, 0);
127 	qcom_ssphy_updatel(priv->base + PHY_CTRL4, TST_PWR_DOWN, TST_PWR_DOWN);
129 	clk_bulk_disable_unprepare(NUM_BULK_CLKS, priv->clks);
130 	regulator_bulk_disable(NUM_BULK_REGS, priv->regs);
135 static int qcom_ssphy_init_clock(struct ssphy_priv *priv)
137 	priv->clks[0].id = "ref";
138 	priv->clks[1].id = "ahb";
139 	priv->clks[2].id = "pipe";
141 	return devm_clk_bulk_get(priv->dev, NUM_BULK_CLKS, priv->clks);
144 static int qcom_ssphy_init_regulator(struct ssphy_priv *priv)
148 	priv->regs[0].supply = "vdd";
149 	priv->regs[1].supply = "vdda1p8";
150 	ret = devm_regulator_bulk_get(priv->dev, NUM_BULK_REGS, priv->regs);
153 			dev_err(priv->dev, "Failed to get regulators\n");
160 static int qcom_ssphy_init_reset(struct ssphy_priv *priv)
162 	priv->reset_com = devm_reset_control_get_optional_exclusive(priv->dev, "com");
163 	if (IS_ERR(priv->reset_com)) {
164 		dev_err(priv->dev, "Failed to get reset control com\n");
165 		return PTR_ERR(priv->reset_com);
168 	if (priv->reset_com) {
170 		priv->reset_phy = devm_reset_control_get_exclusive(priv->dev, "phy");
171 		if (IS_ERR(priv->reset_phy)) {
172 			dev_err(priv->dev, "Failed to get reset control phy\n");
173 			return PTR_ERR(priv->reset_phy);
190 	struct ssphy_priv *priv;
194 	priv = devm_kzalloc(dev, sizeof(struct ssphy_priv), GFP_KERNEL);
195 	if (!priv)
198 	priv->dev = dev;
199 	priv->mode = PHY_MODE_INVALID;
201 	priv->base = devm_platform_ioremap_resource(pdev, 0);
202 	if (IS_ERR(priv->base))
203 		return PTR_ERR(priv->base);
205 	ret = qcom_ssphy_init_clock(priv);
209 	ret = qcom_ssphy_init_reset(priv);
213 	ret = qcom_ssphy_init_regulator(priv);
223 	phy_set_drvdata(phy, priv);