1 // SPDX-License-Identifier: GPL-2.0+
3 // clk-s2mps11.c - Clock driver for S2MPS11.
12 #include <linux/clk-provider.h>
14 #include <linux/mfd/samsung/s2mps11.h>
20 #include <dt-bindings/clock/samsung,s2mps11.h>
26 	struct clk *clk;  member
39 	struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw);  in s2mps11_clk_prepare()  local
41 	return regmap_update_bits(s2mps11->iodev->regmap_pmic,  in s2mps11_clk_prepare()
42 				 s2mps11->reg,  in s2mps11_clk_prepare()
43 				 s2mps11->mask, s2mps11->mask);  in s2mps11_clk_prepare()
48 	struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw);  in s2mps11_clk_unprepare()  local
50 	regmap_update_bits(s2mps11->iodev->regmap_pmic, s2mps11->reg,  in s2mps11_clk_unprepare()
51 			   s2mps11->mask, ~s2mps11->mask);  in s2mps11_clk_unprepare()
58 	struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw);  in s2mps11_clk_is_prepared()  local
60 	ret = regmap_read(s2mps11->iodev->regmap_pmic,  in s2mps11_clk_is_prepared()
61 				s2mps11->reg, &val);  in s2mps11_clk_is_prepared()
63 		return -EINVAL;  in s2mps11_clk_is_prepared()
65 	return val & s2mps11->mask;  in s2mps11_clk_is_prepared()
81 /* This s2mps11_clks_init tructure is common to s2mps11, s2mps13 and s2mps14 */
100 	struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);  in s2mps11_clk_parse_dt()
104 	if (!iodev->dev->of_node)  in s2mps11_clk_parse_dt()
105 		return ERR_PTR(-EINVAL);  in s2mps11_clk_parse_dt()
107 	clk_np = of_get_child_by_name(iodev->dev->of_node, "clocks");  in s2mps11_clk_parse_dt()
109 		dev_err(&pdev->dev, "could not find clock sub-node\n");  in s2mps11_clk_parse_dt()
110 		return ERR_PTR(-EINVAL);  in s2mps11_clk_parse_dt()
114 		of_property_read_string_index(clk_np, "clock-output-names", i,  in s2mps11_clk_parse_dt()
122 	struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);  in s2mps11_clk_probe()
127 	enum sec_device_type hwid = platform_get_device_id(pdev)->driver_data;  in s2mps11_clk_probe()
129 	s2mps11_clks = devm_kcalloc(&pdev->dev, S2MPS11_CLKS_NUM,  in s2mps11_clk_probe()
132 		return -ENOMEM;  in s2mps11_clk_probe()
134 	clk_data = devm_kzalloc(&pdev->dev,  in s2mps11_clk_probe()
138 		return -ENOMEM;  in s2mps11_clk_probe()
154 		dev_err(&pdev->dev, "Invalid device type\n");  in s2mps11_clk_probe()
155 		return -EINVAL;  in s2mps11_clk_probe()
159 	s2mps11_clks->clk_np = s2mps11_clk_parse_dt(pdev, s2mps11_clks_init);  in s2mps11_clk_probe()
160 	if (IS_ERR(s2mps11_clks->clk_np))  in s2mps11_clk_probe()
161 		return PTR_ERR(s2mps11_clks->clk_np);  in s2mps11_clk_probe()
171 		s2mps11_clks[i].clk = devm_clk_register(&pdev->dev,  in s2mps11_clk_probe()
173 		if (IS_ERR(s2mps11_clks[i].clk)) {  in s2mps11_clk_probe()
174 			dev_err(&pdev->dev, "Fail to register : %s\n",  in s2mps11_clk_probe()
176 			ret = PTR_ERR(s2mps11_clks[i].clk);  in s2mps11_clk_probe()
183 			ret = -ENOMEM;  in s2mps11_clk_probe()
186 		clk_data->hws[i] = &s2mps11_clks[i].hw;  in s2mps11_clk_probe()
189 	clk_data->num = S2MPS11_CLKS_NUM;  in s2mps11_clk_probe()
190 	of_clk_add_hw_provider(s2mps11_clks->clk_np, of_clk_hw_onecell_get,  in s2mps11_clk_probe()
199 	while (--i >= 0)  in s2mps11_clk_probe()
223 	{ "s2mps11-clk", S2MPS11X},
224 	{ "s2mps13-clk", S2MPS13X},
225 	{ "s2mps14-clk", S2MPS14X},
226 	{ "s5m8767-clk", S5M8767X},
243 		.compatible = "samsung,s2mps11-clk",
246 		.compatible = "samsung,s2mps13-clk",
249 		.compatible = "samsung,s2mps14-clk",
252 		.compatible = "samsung,s5m8767-clk",
263 		.name  = "s2mps11-clk",
271 MODULE_DESCRIPTION("S2MPS11 Clock Driver");