1 // SPDX-License-Identifier: GPL-2.0
7 #include "phy-mtk-hdmi.h"
9 static int mtk_hdmi_phy_power_on(struct phy *phy);
10 static int mtk_hdmi_phy_power_off(struct phy *phy);
11 static int mtk_hdmi_phy_configure(struct phy *phy, union phy_configure_opts *opts);
25 static int mtk_hdmi_phy_power_on(struct phy *phy)  in mtk_hdmi_phy_power_on()  argument
27 	struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy);  in mtk_hdmi_phy_power_on()
30 	ret = clk_prepare_enable(hdmi_phy->pll);  in mtk_hdmi_phy_power_on()
34 	hdmi_phy->conf->hdmi_phy_enable_tmds(hdmi_phy);  in mtk_hdmi_phy_power_on()
38 static int mtk_hdmi_phy_power_off(struct phy *phy)  in mtk_hdmi_phy_power_off()  argument
40 	struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy);  in mtk_hdmi_phy_power_off()
42 	hdmi_phy->conf->hdmi_phy_disable_tmds(hdmi_phy);  in mtk_hdmi_phy_power_off()
43 	clk_disable_unprepare(hdmi_phy->pll);  in mtk_hdmi_phy_power_off()
48 static int mtk_hdmi_phy_configure(struct phy *phy, union phy_configure_opts *opts)  in mtk_hdmi_phy_configure()  argument
50 	struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy);  in mtk_hdmi_phy_configure()
52 	if (hdmi_phy->conf->hdmi_phy_configure)  in mtk_hdmi_phy_configure()
53 		return hdmi_phy->conf->hdmi_phy_configure(phy, opts);  in mtk_hdmi_phy_configure()
61 	if (hdmi_phy && hdmi_phy->conf &&  in mtk_hdmi_phy_dev_get_ops()
62 	    hdmi_phy->conf->hdmi_phy_enable_tmds &&  in mtk_hdmi_phy_dev_get_ops()
63 	    hdmi_phy->conf->hdmi_phy_disable_tmds)  in mtk_hdmi_phy_dev_get_ops()
67 		dev_err(hdmi_phy->dev, "Failed to get dev ops of phy\n");  in mtk_hdmi_phy_dev_get_ops()
74 	clk_init->flags = hdmi_phy->conf->flags;  in mtk_hdmi_phy_clk_get_data()
75 	clk_init->ops = hdmi_phy->conf->hdmi_phy_clk_ops;  in mtk_hdmi_phy_clk_get_data()
80 	const struct regulator_desc *vreg_desc = hdmi_phy->conf->hdmi_phy_regulator_desc;  in mtk_hdmi_phy_register_regulators()
87 		.dev = hdmi_phy->dev,  in mtk_hdmi_phy_register_regulators()
90 		.of_node = hdmi_phy->dev->of_node  in mtk_hdmi_phy_register_regulators()
93 	hdmi_phy->rdev = devm_regulator_register(hdmi_phy->dev, vreg_desc, &vreg_config);  in mtk_hdmi_phy_register_regulators()
94 	if (IS_ERR(hdmi_phy->rdev))  in mtk_hdmi_phy_register_regulators()
95 		return PTR_ERR(hdmi_phy->rdev);  in mtk_hdmi_phy_register_regulators()
102 	struct device *dev = &pdev->dev;  in mtk_hdmi_phy_probe()
111 	struct phy *phy;  in mtk_hdmi_phy_probe()  local
117 		return -ENOMEM;  in mtk_hdmi_phy_probe()
119 	hdmi_phy->regs = devm_platform_ioremap_resource(pdev, 0);  in mtk_hdmi_phy_probe()
120 	if (IS_ERR(hdmi_phy->regs))  in mtk_hdmi_phy_probe()
121 		return PTR_ERR(hdmi_phy->regs);  in mtk_hdmi_phy_probe()
130 	ret = of_property_read_string(dev->of_node, "clock-output-names",  in mtk_hdmi_phy_probe()
133 		return dev_err_probe(dev, ret, "Failed to read clock-output-names\n");  in mtk_hdmi_phy_probe()
135 	hdmi_phy->dev = dev;  in mtk_hdmi_phy_probe()
136 	hdmi_phy->conf =  in mtk_hdmi_phy_probe()
139 	hdmi_phy->pll_hw.init = &clk_init;  in mtk_hdmi_phy_probe()
140 	hdmi_phy->pll = devm_clk_register(dev, &hdmi_phy->pll_hw);  in mtk_hdmi_phy_probe()
141 	if (IS_ERR(hdmi_phy->pll))  in mtk_hdmi_phy_probe()
142 		return dev_err_probe(dev, PTR_ERR(hdmi_phy->pll),  in mtk_hdmi_phy_probe()
145 	ret = of_property_read_u32(dev->of_node, "mediatek,ibias",  in mtk_hdmi_phy_probe()
146 				   &hdmi_phy->ibias);  in mtk_hdmi_phy_probe()
150 	ret = of_property_read_u32(dev->of_node, "mediatek,ibias_up",  in mtk_hdmi_phy_probe()
151 				   &hdmi_phy->ibias_up);  in mtk_hdmi_phy_probe()
156 	hdmi_phy->drv_imp_clk = 0x30;  in mtk_hdmi_phy_probe()
157 	hdmi_phy->drv_imp_d2 = 0x30;  in mtk_hdmi_phy_probe()
158 	hdmi_phy->drv_imp_d1 = 0x30;  in mtk_hdmi_phy_probe()
159 	hdmi_phy->drv_imp_d0 = 0x30;  in mtk_hdmi_phy_probe()
161 	phy = devm_phy_create(dev, NULL, mtk_hdmi_phy_dev_get_ops(hdmi_phy));  in mtk_hdmi_phy_probe()
162 	if (IS_ERR(phy))  in mtk_hdmi_phy_probe()
163 		return dev_err_probe(dev, PTR_ERR(phy), "Cannot create HDMI PHY\n");  in mtk_hdmi_phy_probe()
165 	phy_set_drvdata(phy, hdmi_phy);  in mtk_hdmi_phy_probe()
170 				     "Failed to register HDMI PHY\n");  in mtk_hdmi_phy_probe()
172 	if (hdmi_phy->conf->pll_default_off)  in mtk_hdmi_phy_probe()
173 		hdmi_phy->conf->hdmi_phy_disable_tmds(hdmi_phy);  in mtk_hdmi_phy_probe()
175 	if (hdmi_phy->conf->hdmi_phy_regulator_desc) {  in mtk_hdmi_phy_probe()
181 	return of_clk_add_provider(dev->of_node, of_clk_src_simple_get,  in mtk_hdmi_phy_probe()
182 				   hdmi_phy->pll);  in mtk_hdmi_phy_probe()
186 	{ .compatible = "mediatek,mt2701-hdmi-phy",
189 	{ .compatible = "mediatek,mt8173-hdmi-phy",
192 	{ .compatible = "mediatek,mt8195-hdmi-phy",
202 		.name = "mediatek-hdmi-phy",
208 MODULE_DESCRIPTION("MediaTek HDMI PHY Driver");