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Diffstat (limited to 'drivers/regulator/tps6105x-regulator.c')
-rw-r--r--drivers/regulator/tps6105x-regulator.c115
1 files changed, 115 insertions, 0 deletions
diff --git a/drivers/regulator/tps6105x-regulator.c b/drivers/regulator/tps6105x-regulator.c
new file mode 100644
index 000000000..a6469fe05
--- /dev/null
+++ b/drivers/regulator/tps6105x-regulator.c
@@ -0,0 +1,115 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Driver for TPS61050/61052 boost converters, typically used for white LEDs
+ * or audio amplifiers.
+ *
+ * Copyright (C) 2011 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/regmap.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/tps6105x.h>
+
+static const unsigned int tps6105x_voltages[] = {
+ 4500000,
+ 5000000,
+ 5250000,
+ 5000000, /* There is an additional 5V */
+};
+
+static const struct regulator_ops tps6105x_regulator_ops = {
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = regulator_is_enabled_regmap,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+ .list_voltage = regulator_list_voltage_table,
+};
+
+static const struct regulator_desc tps6105x_regulator_desc = {
+ .name = "tps6105x-boost",
+ .of_match = of_match_ptr("regulator"),
+ .ops = &tps6105x_regulator_ops,
+ .type = REGULATOR_VOLTAGE,
+ .id = 0,
+ .owner = THIS_MODULE,
+ .n_voltages = ARRAY_SIZE(tps6105x_voltages),
+ .volt_table = tps6105x_voltages,
+ .vsel_reg = TPS6105X_REG_0,
+ .vsel_mask = TPS6105X_REG0_VOLTAGE_MASK,
+ .enable_reg = TPS6105X_REG_0,
+ .enable_mask = TPS6105X_REG0_MODE_MASK,
+ .enable_val = TPS6105X_REG0_MODE_VOLTAGE <<
+ TPS6105X_REG0_MODE_SHIFT,
+};
+
+/*
+ * Registers the chip as a voltage regulator
+ */
+static int tps6105x_regulator_probe(struct platform_device *pdev)
+{
+ struct tps6105x *tps6105x = dev_get_platdata(&pdev->dev);
+ struct tps6105x_platform_data *pdata = tps6105x->pdata;
+ struct regulator_config config = { };
+ int ret;
+
+ /* This instance is not set for regulator mode so bail out */
+ if (pdata->mode != TPS6105X_MODE_VOLTAGE) {
+ dev_info(&pdev->dev,
+ "chip not in voltage mode mode, exit probe\n");
+ return 0;
+ }
+
+ config.dev = &tps6105x->client->dev;
+ config.init_data = pdata->regulator_data;
+ config.driver_data = tps6105x;
+ config.of_node = pdev->dev.parent->of_node;
+ config.regmap = tps6105x->regmap;
+
+ /* Register regulator with framework */
+ tps6105x->regulator = devm_regulator_register(&pdev->dev,
+ &tps6105x_regulator_desc,
+ &config);
+ if (IS_ERR(tps6105x->regulator)) {
+ ret = PTR_ERR(tps6105x->regulator);
+ dev_err(&tps6105x->client->dev,
+ "failed to register regulator\n");
+ return ret;
+ }
+ platform_set_drvdata(pdev, tps6105x);
+
+ return 0;
+}
+
+static struct platform_driver tps6105x_regulator_driver = {
+ .driver = {
+ .name = "tps6105x-regulator",
+ },
+ .probe = tps6105x_regulator_probe,
+};
+
+static __init int tps6105x_regulator_init(void)
+{
+ return platform_driver_register(&tps6105x_regulator_driver);
+}
+subsys_initcall(tps6105x_regulator_init);
+
+static __exit void tps6105x_regulator_exit(void)
+{
+ platform_driver_unregister(&tps6105x_regulator_driver);
+}
+module_exit(tps6105x_regulator_exit);
+
+MODULE_AUTHOR("Linus Walleij <linus.walleij@linaro.org>");
+MODULE_DESCRIPTION("TPS6105x regulator driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:tps6105x-regulator");