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);
23 static int mtk_hdmi_phy_power_on(struct phy *phy)  in mtk_hdmi_phy_power_on()  argument
25 	struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy);  in mtk_hdmi_phy_power_on()
28 	ret = clk_prepare_enable(hdmi_phy->pll);  in mtk_hdmi_phy_power_on()
32 	hdmi_phy->conf->hdmi_phy_enable_tmds(hdmi_phy);  in mtk_hdmi_phy_power_on()
36 static int mtk_hdmi_phy_power_off(struct phy *phy)  in mtk_hdmi_phy_power_off()  argument
38 	struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy);  in mtk_hdmi_phy_power_off()
40 	hdmi_phy->conf->hdmi_phy_disable_tmds(hdmi_phy);  in mtk_hdmi_phy_power_off()
41 	clk_disable_unprepare(hdmi_phy->pll);  in mtk_hdmi_phy_power_off()
49 	if (hdmi_phy && hdmi_phy->conf &&  in mtk_hdmi_phy_dev_get_ops()
50 	    hdmi_phy->conf->hdmi_phy_enable_tmds &&  in mtk_hdmi_phy_dev_get_ops()
51 	    hdmi_phy->conf->hdmi_phy_disable_tmds)  in mtk_hdmi_phy_dev_get_ops()
55 		dev_err(hdmi_phy->dev, "Failed to get dev ops of phy\n");  in mtk_hdmi_phy_dev_get_ops()
62 	clk_init->flags = hdmi_phy->conf->flags;  in mtk_hdmi_phy_clk_get_data()
63 	clk_init->ops = hdmi_phy->conf->hdmi_phy_clk_ops;  in mtk_hdmi_phy_clk_get_data()
68 	struct device *dev = &pdev->dev;  in mtk_hdmi_phy_probe()
77 	struct phy *phy;  in mtk_hdmi_phy_probe()  local
83 		return -ENOMEM;  in mtk_hdmi_phy_probe()
85 	hdmi_phy->regs = devm_platform_ioremap_resource(pdev, 0);  in mtk_hdmi_phy_probe()
86 	if (IS_ERR(hdmi_phy->regs))  in mtk_hdmi_phy_probe()
87 		return PTR_ERR(hdmi_phy->regs);  in mtk_hdmi_phy_probe()
96 	ret = of_property_read_string(dev->of_node, "clock-output-names",  in mtk_hdmi_phy_probe()
99 		return dev_err_probe(dev, ret, "Failed to read clock-output-names\n");  in mtk_hdmi_phy_probe()
101 	hdmi_phy->dev = dev;  in mtk_hdmi_phy_probe()
102 	hdmi_phy->conf =  in mtk_hdmi_phy_probe()
105 	hdmi_phy->pll_hw.init = &clk_init;  in mtk_hdmi_phy_probe()
106 	hdmi_phy->pll = devm_clk_register(dev, &hdmi_phy->pll_hw);  in mtk_hdmi_phy_probe()
107 	if (IS_ERR(hdmi_phy->pll))  in mtk_hdmi_phy_probe()
108 		return dev_err_probe(dev, PTR_ERR(hdmi_phy->pll),  in mtk_hdmi_phy_probe()
111 	ret = of_property_read_u32(dev->of_node, "mediatek,ibias",  in mtk_hdmi_phy_probe()
112 				   &hdmi_phy->ibias);  in mtk_hdmi_phy_probe()
116 	ret = of_property_read_u32(dev->of_node, "mediatek,ibias_up",  in mtk_hdmi_phy_probe()
117 				   &hdmi_phy->ibias_up);  in mtk_hdmi_phy_probe()
122 	hdmi_phy->drv_imp_clk = 0x30;  in mtk_hdmi_phy_probe()
123 	hdmi_phy->drv_imp_d2 = 0x30;  in mtk_hdmi_phy_probe()
124 	hdmi_phy->drv_imp_d1 = 0x30;  in mtk_hdmi_phy_probe()
125 	hdmi_phy->drv_imp_d0 = 0x30;  in mtk_hdmi_phy_probe()
127 	phy = devm_phy_create(dev, NULL, mtk_hdmi_phy_dev_get_ops(hdmi_phy));  in mtk_hdmi_phy_probe()
128 	if (IS_ERR(phy))  in mtk_hdmi_phy_probe()
129 		return dev_err_probe(dev, PTR_ERR(phy), "Cannot create HDMI PHY\n");  in mtk_hdmi_phy_probe()
131 	phy_set_drvdata(phy, hdmi_phy);  in mtk_hdmi_phy_probe()
136 				     "Failed to register HDMI PHY\n");  in mtk_hdmi_phy_probe()
138 	if (hdmi_phy->conf->pll_default_off)  in mtk_hdmi_phy_probe()
139 		hdmi_phy->conf->hdmi_phy_disable_tmds(hdmi_phy);  in mtk_hdmi_phy_probe()
141 	return of_clk_add_provider(dev->of_node, of_clk_src_simple_get,  in mtk_hdmi_phy_probe()
142 				   hdmi_phy->pll);  in mtk_hdmi_phy_probe()
146 	{ .compatible = "mediatek,mt2701-hdmi-phy",
149 	{ .compatible = "mediatek,mt8173-hdmi-phy",
159 		.name = "mediatek-hdmi-phy",
165 MODULE_DESCRIPTION("MediaTek HDMI PHY Driver");