Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 116 insertions, 0 deletions

diff --git a/drivers/regulator/tps6105x-regulator.c b/drivers/regulator/tps6105x-regulator.c
new file mode 100644
index 0000000000..a09c6ae6a0
--- /dev/null
+++ b/drivers/regulator/tps6105x-regulator.c
@@ -0,0 +1,116 @@
+// 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_type = PROBE_PREFER_ASYNCHRONOUS,
+	},
+	.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");