X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fregulator%2Frn5t618-regulator.c;fp=kernel%2Fdrivers%2Fregulator%2Frn5t618-regulator.c;h=b85ceb8ff9111ccecc672fc66d4c5082718b8a3d;hb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;hp=0000000000000000000000000000000000000000;hpb=98260f3884f4a202f9ca5eabed40b1354c489b29;p=kvmfornfv.git

diff --git a/kernel/drivers/regulator/rn5t618-regulator.c b/kernel/drivers/regulator/rn5t618-regulator.c
new file mode 100644
index 000000000..b85ceb8ff
--- /dev/null
+++ b/kernel/drivers/regulator/rn5t618-regulator.c
@@ -0,0 +1,100 @@
+/*
+ * Regulator driver for Ricoh RN5T618 PMIC
+ *
+ * Copyright (C) 2014 Beniamino Galvani <b.galvani@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/mfd/rn5t618.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/of_regulator.h>
+
+static struct regulator_ops rn5t618_reg_ops = {
+	.enable			= regulator_enable_regmap,
+	.disable		= regulator_disable_regmap,
+	.is_enabled		= regulator_is_enabled_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.list_voltage		= regulator_list_voltage_linear,
+};
+
+#define REG(rid, ereg, emask, vreg, vmask, min, max, step)		\
+	[RN5T618_##rid] = {						\
+		.name		= #rid,					\
+		.of_match	= of_match_ptr(#rid),			\
+		.regulators_node = of_match_ptr("regulators"),		\
+		.id		= RN5T618_##rid,			\
+		.type		= REGULATOR_VOLTAGE,			\
+		.owner		= THIS_MODULE,				\
+		.ops		= &rn5t618_reg_ops,			\
+		.n_voltages	= ((max) - (min)) / (step) + 1,		\
+		.min_uV		= (min),				\
+		.uV_step	= (step),				\
+		.enable_reg	= RN5T618_##ereg,			\
+		.enable_mask	= (emask),				\
+		.vsel_reg	= RN5T618_##vreg,			\
+		.vsel_mask	= (vmask),				\
+	}
+
+static struct regulator_desc rn5t618_regulators[] = {
+	/* DCDC */
+	REG(DCDC1, DC1CTL, BIT(0), DC1DAC, 0xff, 600000, 3500000, 12500),
+	REG(DCDC2, DC2CTL, BIT(0), DC2DAC, 0xff, 600000, 3500000, 12500),
+	REG(DCDC3, DC3CTL, BIT(0), DC3DAC, 0xff, 600000, 3500000, 12500),
+	/* LDO */
+	REG(LDO1, LDOEN1, BIT(0), LDO1DAC, 0x7f, 900000, 3500000, 25000),
+	REG(LDO2, LDOEN1, BIT(1), LDO2DAC, 0x7f, 900000, 3500000, 25000),
+	REG(LDO3, LDOEN1, BIT(2), LDO3DAC, 0x7f, 600000, 3500000, 25000),
+	REG(LDO4, LDOEN1, BIT(3), LDO4DAC, 0x7f, 900000, 3500000, 25000),
+	REG(LDO5, LDOEN1, BIT(4), LDO5DAC, 0x7f, 900000, 3500000, 25000),
+	/* LDO RTC */
+	REG(LDORTC1, LDOEN2, BIT(4), LDORTCDAC, 0x7f, 1700000, 3500000, 25000),
+	REG(LDORTC2, LDOEN2, BIT(5), LDORTC2DAC, 0x7f, 900000, 3500000, 25000),
+};
+
+static int rn5t618_regulator_probe(struct platform_device *pdev)
+{
+	struct rn5t618 *rn5t618 = dev_get_drvdata(pdev->dev.parent);
+	struct regulator_config config = { };
+	struct regulator_dev *rdev;
+	int i;
+
+	for (i = 0; i < RN5T618_REG_NUM; i++) {
+		config.dev = pdev->dev.parent;
+		config.regmap = rn5t618->regmap;
+
+		rdev = devm_regulator_register(&pdev->dev,
+					       &rn5t618_regulators[i],
+					       &config);
+		if (IS_ERR(rdev)) {
+			dev_err(&pdev->dev, "failed to register %s regulator\n",
+				rn5t618_regulators[i].name);
+			return PTR_ERR(rdev);
+		}
+	}
+
+	return 0;
+}
+
+static struct platform_driver rn5t618_regulator_driver = {
+	.probe = rn5t618_regulator_probe,
+	.driver = {
+		.name	= "rn5t618-regulator",
+	},
+};
+
+module_platform_driver(rn5t618_regulator_driver);
+
+MODULE_AUTHOR("Beniamino Galvani <b.galvani@gmail.com>");
+MODULE_DESCRIPTION("RN5T618 regulator driver");
+MODULE_LICENSE("GPL v2");