1 // SPDX-License-Identifier: GPL-2.0
3 // Copyright (c) 2022 Collabora Ltd.
6 // Based on mt6323-regulator.c,
7 //     Copyright (c) 2016 MediaTek Inc.
18 #include <linux/regulator/mt6332-regulator.h>
30  * @vselctrl_reg: Register for controlling the buck control mode.
31  * @vselctrl_mask: Mask for query buck's voltage control mode.
57 		.n_voltages = (max - min)/step + 1,			\
83 		.n_voltages = (max - min)/step + 1,			\
188 	if (info->qi > 0) {  in mt6332_get_status()
189 		reg = info->desc.enable_reg;  in mt6332_get_status()
190 		en_mask = info->qi;  in mt6332_get_status()
192 		reg = info->status_reg;  in mt6332_get_status()
193 		en_mask = info->status_mask;  in mt6332_get_status()
196 	ret = regmap_read(rdev->regmap, reg, &regval);  in mt6332_get_status()
198 		dev_err(&rdev->dev, "Failed to get enable reg: %d\n", ret);  in mt6332_get_status()
218 		return -EINVAL;  in mt6332_ldo_set_mode()
221 	val <<= ffs(info->modeset_mask) - 1;  in mt6332_ldo_set_mode()
223 	return regmap_update_bits(rdev->regmap, info->modeset_reg,  in mt6332_ldo_set_mode()
224 				  info->modeset_mask, val);  in mt6332_ldo_set_mode()
233 	ret = regmap_read(rdev->regmap, info->modeset_reg, &val);  in mt6332_ldo_get_mode()
237 	val &= info->modeset_mask;  in mt6332_ldo_get_mode()
238 	val >>= ffs(info->modeset_mask) - 1;  in mt6332_ldo_get_mode()
301 	MT6332_BUCK("buck-vdram", VDRAM, 700000, 1493750, 6250, buck_volt_range,
304 	MT6332_BUCK("buck-vdvfs2", VDVFS2, 700000, 1312500, 6250, buck_volt_range,
307 	MT6332_BUCK("buck-vpa", VPA, 500000, 3400000, 50000, buck_pa_volt_range,
310 	MT6332_BUCK("buck-vrf18a", VRF1, 1050000, 2240625, 9375, buck_rf_volt_range,
313 	MT6332_BUCK("buck-vrf18b", VRF2, 1050000, 2240625, 9375, buck_rf_volt_range,
316 	MT6332_BUCK("buck-vsbst", VSBST, 3500000, 7468750, 31250, boost_volt_range,
319 	MT6332_LDO("ldo-vauxb32", VAUXB32, ldo_volt_table1, MT6332_LDO_CON1, 10,
321 	MT6332_REG_FIXED("ldo-vbif28", VBIF28, MT6332_LDO_CON2, 10, 0, 2800000, 1),
322 	MT6332_REG_FIXED("ldo-vusb33", VUSB33, MT6332_LDO_CON3, 10, 0, 3300000, 2),
323 	MT6332_LDO_LINEAR("ldo-vsram", VSRAM_DVFS2, 700000, 1493750, 6250, buck_volt_range,
327 	MT6332_LDO_AO("ldo-vdig18", VDIG18, ldo_volt_table2, MT6332_LDO_CON12, GENMASK(11, 9)),
332 	struct mt6397_chip *mt6332 = dev_get_drvdata(pdev->dev.parent);  in mt6332_set_buck_vosel_reg()
338 			if (regmap_read(mt6332->regmap,  in mt6332_set_buck_vosel_reg()
341 				dev_err(&pdev->dev,  in mt6332_set_buck_vosel_reg()
342 					"Failed to read buck ctrl\n");  in mt6332_set_buck_vosel_reg()
343 				return -EIO;  in mt6332_set_buck_vosel_reg()
358 	struct mt6397_chip *mt6332 = dev_get_drvdata(pdev->dev.parent);  in mt6332_regulator_probe()
364 	/* Query buck controller to select activated voltage register part */  in mt6332_regulator_probe()
366 		return -EIO;  in mt6332_regulator_probe()
369 	if (regmap_read(mt6332->regmap, MT6332_HWCID, &reg_value) < 0) {  in mt6332_regulator_probe()
370 		dev_err(&pdev->dev, "Failed to read Chip ID\n");  in mt6332_regulator_probe()
371 		return -EIO;  in mt6332_regulator_probe()
375 	dev_info(&pdev->dev, "Chip ID = 0x%x\n", reg_value);  in mt6332_regulator_probe()
385 		dev_err(&pdev->dev, "Chip version not supported. Bailing out.\n");  in mt6332_regulator_probe()
386 		return -EINVAL;  in mt6332_regulator_probe()
390 		config.dev = &pdev->dev;  in mt6332_regulator_probe()
392 		config.regmap = mt6332->regmap;  in mt6332_regulator_probe()
393 		rdev = devm_regulator_register(&pdev->dev,  in mt6332_regulator_probe()
396 			dev_err(&pdev->dev, "failed to register %s\n",  in mt6332_regulator_probe()
405 	{"mt6332-regulator", 0},
412 		.name = "mt6332-regulator",