1 // SPDX-License-Identifier: GPL-2.0
21 #include <linux/soc/samsung/exynos-chipid.h>
23 #include "exynos-asv.h"
24 #include "exynos5422-asv.h"
36 	for (i = 0; i < ARRAY_SIZE(asv->subsys); i++) {  in exynos_asv_update_cpu_opps()
37 		if (of_device_is_compatible(cpu->of_node,  in exynos_asv_update_cpu_opps()
38 					    asv->subsys[i].cpu_dt_compat)) {  in exynos_asv_update_cpu_opps()
39 			subsys = &asv->subsys[i];  in exynos_asv_update_cpu_opps()
44 		return -EINVAL;  in exynos_asv_update_cpu_opps()
46 	for (i = 0; i < subsys->table.num_rows; i++) {  in exynos_asv_update_cpu_opps()
54 			dev_info(asv->dev, "cpu%d opp%d, freq: %u missing\n",  in exynos_asv_update_cpu_opps()
55 				 cpu->id, i, opp_freq);  in exynos_asv_update_cpu_opps()
61 		new_volt = asv->opp_get_voltage(subsys, i, volt);  in exynos_asv_update_cpu_opps()
70 			dev_err(asv->dev,  in exynos_asv_update_cpu_opps()
72 				opp_freq, new_volt, cpu->id);  in exynos_asv_update_cpu_opps()
74 			dev_dbg(asv->dev,  in exynos_asv_update_cpu_opps()
75 				"Adjusted OPP %u Hz/%u -> %u uV, cpu%d\n",  in exynos_asv_update_cpu_opps()
76 				opp_freq, volt, new_volt, cpu->id);  in exynos_asv_update_cpu_opps()
104 				dev_err(asv->dev, "Couldn't udate OPPs for cpu%d\n",  in exynos_asv_update_opps()
122 	asv = devm_kzalloc(&pdev->dev, sizeof(*asv), GFP_KERNEL);  in exynos_asv_probe()
124 		return -ENOMEM;  in exynos_asv_probe()
126 	asv->chipid_regmap = device_node_to_regmap(pdev->dev.of_node);  in exynos_asv_probe()
127 	if (IS_ERR(asv->chipid_regmap)) {  in exynos_asv_probe()
128 		dev_err(&pdev->dev, "Could not find syscon regmap\n");  in exynos_asv_probe()
129 		return PTR_ERR(asv->chipid_regmap);  in exynos_asv_probe()
132 	ret = regmap_read(asv->chipid_regmap, EXYNOS_CHIPID_REG_PRO_ID,  in exynos_asv_probe()
135 		dev_err(&pdev->dev, "Cannot read revision from ChipID: %d\n",  in exynos_asv_probe()
137 		return -ENODEV;  in exynos_asv_probe()
145 		return -ENODEV;  in exynos_asv_probe()
151 		return -EPROBE_DEFER;  in exynos_asv_probe()
153 	ret = of_property_read_u32(pdev->dev.of_node, "samsung,asv-bin",  in exynos_asv_probe()
154 				   &asv->of_bin);  in exynos_asv_probe()
156 		asv->of_bin = -EINVAL;  in exynos_asv_probe()
158 	asv->dev = &pdev->dev;  in exynos_asv_probe()
159 	dev_set_drvdata(&pdev->dev, asv);  in exynos_asv_probe()
161 	for (i = 0; i < ARRAY_SIZE(asv->subsys); i++)  in exynos_asv_probe()
162 		asv->subsys[i].asv = asv;  in exynos_asv_probe()
172 	{ .compatible = "samsung,exynos4210-chipid" },
178 		.name = "exynos-asv",