38 static int tegra124_cpu_switch_to_dfll(struct tegra124_cpufreq_priv *priv)  in tegra124_cpu_switch_to_dfll()  argument
43 	ret = clk_set_rate(priv->dfll_clk, clk_get_rate(priv->cpu_clk));  in tegra124_cpu_switch_to_dfll()
47 	orig_parent = clk_get_parent(priv->cpu_clk);  in tegra124_cpu_switch_to_dfll()
48 	clk_set_parent(priv->cpu_clk, priv->pllp_clk);  in tegra124_cpu_switch_to_dfll()
50 	ret = clk_prepare_enable(priv->dfll_clk);  in tegra124_cpu_switch_to_dfll()
54 	clk_set_parent(priv->cpu_clk, priv->dfll_clk);  in tegra124_cpu_switch_to_dfll()
59 	clk_set_parent(priv->cpu_clk, orig_parent);  in tegra124_cpu_switch_to_dfll()
64 static void tegra124_cpu_switch_to_pllx(struct tegra124_cpufreq_priv *priv)  in tegra124_cpu_switch_to_pllx()  argument
66 	clk_set_parent(priv->cpu_clk, priv->pllp_clk);  in tegra124_cpu_switch_to_pllx()
67 	clk_disable_unprepare(priv->dfll_clk);  in tegra124_cpu_switch_to_pllx()
68 	regulator_sync_voltage(priv->vdd_cpu_reg);  in tegra124_cpu_switch_to_pllx()
69 	clk_set_parent(priv->cpu_clk, priv->pllx_clk);  in tegra124_cpu_switch_to_pllx()
78 	struct tegra124_cpufreq_priv *priv;  in tegra124_cpufreq_probe()  local
84 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);  in tegra124_cpufreq_probe()
85 	if (!priv)  in tegra124_cpufreq_probe()
96 	priv->vdd_cpu_reg = regulator_get(cpu_dev, "vdd-cpu");  in tegra124_cpufreq_probe()
97 	if (IS_ERR(priv->vdd_cpu_reg)) {  in tegra124_cpufreq_probe()
98 		ret = PTR_ERR(priv->vdd_cpu_reg);  in tegra124_cpufreq_probe()
102 	priv->cpu_clk = of_clk_get_by_name(np, "cpu_g");  in tegra124_cpufreq_probe()
103 	if (IS_ERR(priv->cpu_clk)) {  in tegra124_cpufreq_probe()
104 		ret = PTR_ERR(priv->cpu_clk);  in tegra124_cpufreq_probe()
108 	priv->dfll_clk = of_clk_get_by_name(np, "dfll");  in tegra124_cpufreq_probe()
109 	if (IS_ERR(priv->dfll_clk)) {  in tegra124_cpufreq_probe()
110 		ret = PTR_ERR(priv->dfll_clk);  in tegra124_cpufreq_probe()
114 	priv->pllx_clk = of_clk_get_by_name(np, "pll_x");  in tegra124_cpufreq_probe()
115 	if (IS_ERR(priv->pllx_clk)) {  in tegra124_cpufreq_probe()
116 		ret = PTR_ERR(priv->pllx_clk);  in tegra124_cpufreq_probe()
120 	priv->pllp_clk = of_clk_get_by_name(np, "pll_p");  in tegra124_cpufreq_probe()
121 	if (IS_ERR(priv->pllp_clk)) {  in tegra124_cpufreq_probe()
122 		ret = PTR_ERR(priv->pllp_clk);  in tegra124_cpufreq_probe()
126 	ret = tegra124_cpu_switch_to_dfll(priv);  in tegra124_cpufreq_probe()
135 	priv->cpufreq_dt_pdev =  in tegra124_cpufreq_probe()
137 	if (IS_ERR(priv->cpufreq_dt_pdev)) {  in tegra124_cpufreq_probe()
138 		ret = PTR_ERR(priv->cpufreq_dt_pdev);  in tegra124_cpufreq_probe()
142 	platform_set_drvdata(pdev, priv);  in tegra124_cpufreq_probe()
147 	tegra124_cpu_switch_to_pllx(priv);  in tegra124_cpufreq_probe()
149 	clk_put(priv->pllp_clk);  in tegra124_cpufreq_probe()
151 	clk_put(priv->pllx_clk);  in tegra124_cpufreq_probe()
153 	clk_put(priv->dfll_clk);  in tegra124_cpufreq_probe()
155 	clk_put(priv->cpu_clk);  in tegra124_cpufreq_probe()
157 	regulator_put(priv->vdd_cpu_reg);  in tegra124_cpufreq_probe()
166 	struct tegra124_cpufreq_priv *priv = platform_get_drvdata(pdev);  in tegra124_cpufreq_remove()  local
168 	platform_device_unregister(priv->cpufreq_dt_pdev);  in tegra124_cpufreq_remove()
169 	tegra124_cpu_switch_to_pllx(priv);  in tegra124_cpufreq_remove()
171 	clk_put(priv->pllp_clk);  in tegra124_cpufreq_remove()
172 	clk_put(priv->pllx_clk);  in tegra124_cpufreq_remove()
173 	clk_put(priv->dfll_clk);  in tegra124_cpufreq_remove()
174 	clk_put(priv->cpu_clk);  in tegra124_cpufreq_remove()
175 	regulator_put(priv->vdd_cpu_reg);  in tegra124_cpufreq_remove()