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2024-05-11 04dd17822334871b23ea2862f7798fb0e0007777

 kernel/drivers/regulator/tps6507x-regulator.c
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@@ -3,7 +3,7 @@
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  *
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  * Regulator driver for TPS65073 PMIC
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  *
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- * Copyright (C) 2009 Texas Instrument Incorporated - http://www.ti.com/
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+ * Copyright (C) 2009 Texas Instrument Incorporated - https://www.ti.com/
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  *
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  * This program is free software; you can redistribute it and/or
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  * modify it under the terms of the GNU General Public License as
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@@ -115,7 +115,6 @@
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 struct tps6507x_pmic {
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 	struct regulator_desc desc[TPS6507X_NUM_REGULATOR];
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 	struct tps6507x_dev *mfd;
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-	struct regulator_dev *rdev[TPS6507X_NUM_REGULATOR];
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 	struct tps_info *info[TPS6507X_NUM_REGULATOR];
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 	struct mutex io_lock;
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 };
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@@ -349,7 +348,7 @@
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 	return tps6507x_pmic_reg_write(tps, reg, data);
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 }
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-static struct regulator_ops tps6507x_pmic_ops = {
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+static const struct regulator_ops tps6507x_pmic_ops = {
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 	.is_enabled = tps6507x_pmic_is_enabled,
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 	.enable = tps6507x_pmic_enable,
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 	.disable = tps6507x_pmic_disable,
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@@ -359,66 +358,20 @@
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 	.map_voltage = regulator_map_voltage_ascend,
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 };
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-static struct of_regulator_match tps6507x_matches[] = {
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-	{ .name = "VDCDC1"},
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-	{ .name = "VDCDC2"},
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-	{ .name = "VDCDC3"},
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-	{ .name = "LDO1"},
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-	{ .name = "LDO2"},
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-};
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-
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-static struct tps6507x_board *tps6507x_parse_dt_reg_data(
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-		struct platform_device *pdev,
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-		struct of_regulator_match **tps6507x_reg_matches)
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+static int tps6507x_pmic_of_parse_cb(struct device_node *np,
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+				     const struct regulator_desc *desc,
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+				     struct regulator_config *config)
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 {
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-	struct tps6507x_board *tps_board;
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-	struct device_node *np = pdev->dev.parent->of_node;
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-	struct device_node *regulators;
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-	struct of_regulator_match *matches;
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-	struct regulator_init_data *reg_data;
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-	int idx = 0, count, ret;
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+	struct tps6507x_pmic *tps = config->driver_data;
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+	struct tps_info *info = tps->info[desc->id];
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+	u32 prop;
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+	int ret;
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-	tps_board = devm_kzalloc(&pdev->dev, sizeof(*tps_board),
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-					GFP_KERNEL);
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-	if (!tps_board)
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-		return NULL;
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+	ret = of_property_read_u32(np, "ti,defdcdc_default", &prop);
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+	if (!ret)
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+		info->defdcdc_default = prop;
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-	regulators = of_get_child_by_name(np, "regulators");
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-	if (!regulators) {
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-		dev_err(&pdev->dev, "regulator node not found\n");
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-		return NULL;
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-	}
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-
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-	count = ARRAY_SIZE(tps6507x_matches);
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-	matches = tps6507x_matches;
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-
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-	ret = of_regulator_match(&pdev->dev, regulators, matches, count);
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-	of_node_put(regulators);
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-	if (ret < 0) {
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-		dev_err(&pdev->dev, "Error parsing regulator init data: %d\n",
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-			ret);
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-		return NULL;
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-	}
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-
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-	*tps6507x_reg_matches = matches;
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-
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-	reg_data = devm_kzalloc(&pdev->dev, (sizeof(struct regulator_init_data)
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-					* TPS6507X_NUM_REGULATOR), GFP_KERNEL);
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-	if (!reg_data)
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-		return NULL;
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-
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-	tps_board->tps6507x_pmic_init_data = reg_data;
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-
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-	for (idx = 0; idx < count; idx++) {
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-		if (!matches[idx].init_data || !matches[idx].of_node)
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-			continue;
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-
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-		memcpy(&reg_data[idx], matches[idx].init_data,
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-				sizeof(struct regulator_init_data));
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-
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-	}
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-
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-	return tps_board;
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+	return 0;
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 }
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 static int tps6507x_pmic_probe(struct platform_device *pdev)
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@@ -426,14 +379,11 @@
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 	struct tps6507x_dev *tps6507x_dev = dev_get_drvdata(pdev->dev.parent);
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 	struct tps_info *info = &tps6507x_pmic_regs[0];
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 	struct regulator_config config = { };
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-	struct regulator_init_data *init_data;
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+	struct regulator_init_data *init_data = NULL;
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 	struct regulator_dev *rdev;
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 	struct tps6507x_pmic *tps;
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 	struct tps6507x_board *tps_board;
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-	struct of_regulator_match *tps6507x_reg_matches = NULL;
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 	int i;
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-	int error;
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-	unsigned int prop;
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 	/**
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 	 * tps_board points to pmic related constants
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@@ -441,20 +391,8 @@
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 	 */
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 	tps_board = dev_get_platdata(tps6507x_dev->dev);
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-	if (IS_ENABLED(CONFIG_OF) && !tps_board &&
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-		tps6507x_dev->dev->of_node)
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-		tps_board = tps6507x_parse_dt_reg_data(pdev,
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-				&tps6507x_reg_matches);
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-	if (!tps_board)
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-		return -EINVAL;
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-
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-	/**
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-	 * init_data points to array of regulator_init structures
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-	 * coming from the board-evm file.
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-	 */
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-	init_data = tps_board->tps6507x_pmic_init_data;
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-	if (!init_data)
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-		return -EINVAL;
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+	if (tps_board)
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+		init_data = tps_board->tps6507x_pmic_init_data;
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 	tps = devm_kzalloc(&pdev->dev, sizeof(*tps), GFP_KERNEL);
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 	if (!tps)
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@@ -465,16 +403,19 @@
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 	/* common for all regulators */
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 	tps->mfd = tps6507x_dev;
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-	for (i = 0; i < TPS6507X_NUM_REGULATOR; i++, info++, init_data++) {
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+	for (i = 0; i < TPS6507X_NUM_REGULATOR; i++, info++) {
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 		/* Register the regulators */
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 		tps->info[i] = info;
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-		if (init_data->driver_data) {
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+		if (init_data && init_data[i].driver_data) {
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 			struct tps6507x_reg_platform_data *data =
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-					init_data->driver_data;
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-			tps->info[i]->defdcdc_default = data->defdcdc_default;
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+					init_data[i].driver_data;
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+			info->defdcdc_default = data->defdcdc_default;
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 		}
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 		tps->desc[i].name = info->name;
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+		tps->desc[i].of_match = of_match_ptr(info->name);
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+		tps->desc[i].regulators_node = of_match_ptr("regulators");
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+		tps->desc[i].of_parse_cb = tps6507x_pmic_of_parse_cb;
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 		tps->desc[i].id = i;
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 		tps->desc[i].n_voltages = info->table_len;
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 		tps->desc[i].volt_table = info->table;
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@@ -486,17 +427,6 @@
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 		config.init_data = init_data;
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 		config.driver_data = tps;
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-		if (tps6507x_reg_matches) {
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-			error = of_property_read_u32(
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-				tps6507x_reg_matches[i].of_node,
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-					"ti,defdcdc_default", &prop);
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-
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-			if (!error)
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-				tps->info[i]->defdcdc_default = prop;
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-
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-			config.of_node = tps6507x_reg_matches[i].of_node;
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-		}
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-
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 		rdev = devm_regulator_register(&pdev->dev, &tps->desc[i],
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 					       &config);
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 		if (IS_ERR(rdev)) {
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@@ -505,9 +435,6 @@
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 				pdev->name);
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 			return PTR_ERR(rdev);
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 		}
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-
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-		/* Save regulator for cleanup */
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-		tps->rdev[i] = rdev;
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 	}
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 	tps6507x_dev->pmic = tps;