Merge tag 'regulator-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "The biggest changes in the core this time around have been some
  refactorings that move us towards being able to drop the list of
  regulators maintained by the core and instead just use the driver
  model list maintained for the class devices for regulators which will
  make the code smaller and avoid some potential bugs.

  Otherwise another fairly quiet release for the regulator API,
  highlights include:

   - a new API for setting voltages based on a minimum, target, maximum
     triplet

   - support for continuous voltage ranges rather than tables of
     explicit steps in the PWM regulator, requiring less explicit
     configuration

   - new driver support for Dialog DA9215, Maxim 77843, Mediatek MT6311
     and Qualcomm RPM"

* tag 'regulator-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (70 commits)
  regulator: mt6311: fix platform_no_drv_owner.cocci warnings
  regulator: ltc3589: Remove unnecessary MODULE_ALIAS()
  regulator: ad5398: Remove unnecessary MODULE_ALIAS()
  regulator: pfuze100: Remove unnecessary MODULE_ALIAS()
  regulator: core: use debug level print in regulator_check_drms
  regulator: lp872x: handle error case
  regulator: lp872x: use the private data instead of updating I2C device platform data
  regulator: isl9305: Export OF module alias information
  regulators: max77693: register driver earlier to avoid deferred probe
  regulator: qcom_smd: Set n_voltages for pm8941_lnldo
  regulator: core: Use IS_ERR_OR_NULL()
  regulator: core: Define regulator_set_voltage_triplet()
  regulator: Regulator driver for the Qualcomm RPM
  regulator: pbias: Fix broken pbias disable functionality
  regulator: core: Spelling fix
  regulator: core: Use class device list for regulator_list in late init
  regulator: core: Move more deallocation into class unregister
  regulator: core: Reduce rdev locking region when releasing regulator
  Input: Remove the max77843 haptic driver
  Input: max77693: Add support for Maxim 77843
  ...

1 files changed, 350 insertions, 0 deletions

diff --git a/drivers/regulator/qcom_smd-regulator.c b/drivers/regulator/qcom_smd-regulator.c
new file mode 100644
index 000000000000..9c6167dd2c8b
--- /dev/null
+++ b/drivers/regulator/qcom_smd-regulator.c
@@ -0,0 +1,350 @@
+/*
+ * Copyright (c) 2015, Sony Mobile Communications AB.
+ * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/soc/qcom/smd-rpm.h>
+
+struct qcom_rpm_reg {
+	struct device *dev;
+
+	struct qcom_smd_rpm *rpm;
+
+	u32 type;
+	u32 id;
+
+	struct regulator_desc desc;
+
+	int is_enabled;
+	int uV;
+};
+
+struct rpm_regulator_req {
+	u32 key;
+	u32 nbytes;
+	u32 value;
+};
+
+#define RPM_KEY_SWEN	0x6e657773 /* "swen" */
+#define RPM_KEY_UV	0x00007675 /* "uv" */
+#define RPM_KEY_MA	0x0000616d /* "ma" */
+
+static int rpm_reg_write_active(struct qcom_rpm_reg *vreg,
+				struct rpm_regulator_req *req,
+				size_t size)
+{
+	return qcom_rpm_smd_write(vreg->rpm,
+				  QCOM_SMD_RPM_ACTIVE_STATE,
+				  vreg->type,
+				  vreg->id,
+				  req, size);
+}
+
+static int rpm_reg_enable(struct regulator_dev *rdev)
+{
+	struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
+	struct rpm_regulator_req req;
+	int ret;
+
+	req.key = RPM_KEY_SWEN;
+	req.nbytes = sizeof(u32);
+	req.value = 1;
+
+	ret = rpm_reg_write_active(vreg, &req, sizeof(req));
+	if (!ret)
+		vreg->is_enabled = 1;
+
+	return ret;
+}
+
+static int rpm_reg_is_enabled(struct regulator_dev *rdev)
+{
+	struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
+
+	return vreg->is_enabled;
+}
+
+static int rpm_reg_disable(struct regulator_dev *rdev)
+{
+	struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
+	struct rpm_regulator_req req;
+	int ret;
+
+	req.key = RPM_KEY_SWEN;
+	req.nbytes = sizeof(u32);
+	req.value = 0;
+
+	ret = rpm_reg_write_active(vreg, &req, sizeof(req));
+	if (!ret)
+		vreg->is_enabled = 0;
+
+	return ret;
+}
+
+static int rpm_reg_get_voltage(struct regulator_dev *rdev)
+{
+	struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
+
+	return vreg->uV;
+}
+
+static int rpm_reg_set_voltage(struct regulator_dev *rdev,
+			       int min_uV,
+			       int max_uV,
+			       unsigned *selector)
+{
+	struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
+	struct rpm_regulator_req req;
+	int ret = 0;
+
+	req.key = RPM_KEY_UV;
+	req.nbytes = sizeof(u32);
+	req.value = min_uV;
+
+	ret = rpm_reg_write_active(vreg, &req, sizeof(req));
+	if (!ret)
+		vreg->uV = min_uV;
+
+	return ret;
+}
+
+static int rpm_reg_set_load(struct regulator_dev *rdev, int load_uA)
+{
+	struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
+	struct rpm_regulator_req req;
+
+	req.key = RPM_KEY_MA;
+	req.nbytes = sizeof(u32);
+	req.value = load_uA;
+
+	return rpm_reg_write_active(vreg, &req, sizeof(req));
+}
+
+static const struct regulator_ops rpm_smps_ldo_ops = {
+	.enable = rpm_reg_enable,
+	.disable = rpm_reg_disable,
+	.is_enabled = rpm_reg_is_enabled,
+
+	.get_voltage = rpm_reg_get_voltage,
+	.set_voltage = rpm_reg_set_voltage,
+
+	.set_load = rpm_reg_set_load,
+};
+
+static const struct regulator_ops rpm_switch_ops = {
+	.enable = rpm_reg_enable,
+	.disable = rpm_reg_disable,
+	.is_enabled = rpm_reg_is_enabled,
+};
+
+static const struct regulator_desc pm8x41_hfsmps = {
+	.linear_ranges = (struct regulator_linear_range[]) {
+		REGULATOR_LINEAR_RANGE( 375000,  0,  95, 12500),
+		REGULATOR_LINEAR_RANGE(1550000, 96, 158, 25000),
+	},
+	.n_linear_ranges = 2,
+	.n_voltages = 159,
+	.ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pm8841_ftsmps = {
+	.linear_ranges = (struct regulator_linear_range[]) {
+		REGULATOR_LINEAR_RANGE(350000,  0, 184, 5000),
+		REGULATOR_LINEAR_RANGE(700000, 185, 339, 10000),
+	},
+	.n_linear_ranges = 2,
+	.n_voltages = 340,
+	.ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pm8941_boost = {
+	.linear_ranges = (struct regulator_linear_range[]) {
+		REGULATOR_LINEAR_RANGE(4000000, 0, 15, 100000),
+	},
+	.n_linear_ranges = 1,
+	.n_voltages = 16,
+	.ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pm8941_pldo = {
+	.linear_ranges = (struct regulator_linear_range[]) {
+		REGULATOR_LINEAR_RANGE( 750000,  0,  30, 25000),
+		REGULATOR_LINEAR_RANGE(1500000, 31, 99, 50000),
+	},
+	.n_linear_ranges = 2,
+	.n_voltages = 100,
+	.ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pm8941_nldo = {
+	.linear_ranges = (struct regulator_linear_range[]) {
+		REGULATOR_LINEAR_RANGE(750000, 0, 63, 12500),
+	},
+	.n_linear_ranges = 1,
+	.n_voltages = 64,
+	.ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pm8941_lnldo = {
+	.fixed_uV = 1740000,
+	.n_voltages = 1,
+	.ops = &rpm_smps_ldo_ops,
+};
+
+static const struct regulator_desc pm8941_switch = {
+	.ops = &rpm_switch_ops,
+};
+
+struct rpm_regulator_data {
+	const char *name;
+	u32 type;
+	u32 id;
+	const struct regulator_desc *desc;
+	const char *supply;
+};
+
+static const struct rpm_regulator_data rpm_pm8841_regulators[] = {
+	{ "s1", QCOM_SMD_RPM_SMPB, 1, &pm8x41_hfsmps, "vdd_s1" },
+	{ "s2", QCOM_SMD_RPM_SMPB, 2, &pm8841_ftsmps, "vdd_s2" },
+	{ "s3", QCOM_SMD_RPM_SMPB, 3, &pm8x41_hfsmps, "vdd_s3" },
+	{ "s4", QCOM_SMD_RPM_SMPB, 4, &pm8841_ftsmps, "vdd_s4" },
+	{ "s5", QCOM_SMD_RPM_SMPB, 5, &pm8841_ftsmps, "vdd_s5" },
+	{ "s6", QCOM_SMD_RPM_SMPB, 6, &pm8841_ftsmps, "vdd_s6" },
+	{ "s7", QCOM_SMD_RPM_SMPB, 7, &pm8841_ftsmps, "vdd_s7" },
+	{ "s8", QCOM_SMD_RPM_SMPB, 8, &pm8841_ftsmps, "vdd_s8" },
+	{}
+};
+
+static const struct rpm_regulator_data rpm_pm8941_regulators[] = {
+	{ "s1", QCOM_SMD_RPM_SMPA, 1, &pm8x41_hfsmps, "vdd_s1" },
+	{ "s2", QCOM_SMD_RPM_SMPA, 2, &pm8x41_hfsmps, "vdd_s2" },
+	{ "s3", QCOM_SMD_RPM_SMPA, 3, &pm8x41_hfsmps, "vdd_s3" },
+	{ "s4", QCOM_SMD_RPM_BOOST, 1, &pm8941_boost },
+
+	{ "l1", QCOM_SMD_RPM_LDOA, 1, &pm8941_nldo, "vdd_l1_l3" },
+	{ "l2", QCOM_SMD_RPM_LDOA, 2, &pm8941_nldo, "vdd_l2_lvs1_2_3" },
+	{ "l3", QCOM_SMD_RPM_LDOA, 3, &pm8941_nldo, "vdd_l1_l3" },
+	{ "l4", QCOM_SMD_RPM_LDOA, 4, &pm8941_nldo, "vdd_l4_l11" },
+	{ "l5", QCOM_SMD_RPM_LDOA, 5, &pm8941_lnldo, "vdd_l5_l7" },
+	{ "l6", QCOM_SMD_RPM_LDOA, 6, &pm8941_pldo, "vdd_l6_l12_l14_l15" },
+	{ "l7", QCOM_SMD_RPM_LDOA, 7, &pm8941_lnldo, "vdd_l5_l7" },
+	{ "l8", QCOM_SMD_RPM_LDOA, 8, &pm8941_pldo, "vdd_l8_l16_l18_l19" },
+	{ "l9", QCOM_SMD_RPM_LDOA, 9, &pm8941_pldo, "vdd_l9_l10_l17_l22" },
+	{ "l10", QCOM_SMD_RPM_LDOA, 10, &pm8941_pldo, "vdd_l9_l10_l17_l22" },
+	{ "l11", QCOM_SMD_RPM_LDOA, 11, &pm8941_nldo, "vdd_l4_l11" },
+	{ "l12", QCOM_SMD_RPM_LDOA, 12, &pm8941_pldo, "vdd_l6_l12_l14_l15" },
+	{ "l13", QCOM_SMD_RPM_LDOA, 13, &pm8941_pldo, "vdd_l13_l20_l23_l24" },
+	{ "l14", QCOM_SMD_RPM_LDOA, 14, &pm8941_pldo, "vdd_l6_l12_l14_l15" },
+	{ "l15", QCOM_SMD_RPM_LDOA, 15, &pm8941_pldo, "vdd_l6_l12_l14_l15" },
+	{ "l16", QCOM_SMD_RPM_LDOA, 16, &pm8941_pldo, "vdd_l8_l16_l18_l19" },
+	{ "l17", QCOM_SMD_RPM_LDOA, 17, &pm8941_pldo, "vdd_l9_l10_l17_l22" },
+	{ "l18", QCOM_SMD_RPM_LDOA, 18, &pm8941_pldo, "vdd_l8_l16_l18_l19" },
+	{ "l19", QCOM_SMD_RPM_LDOA, 19, &pm8941_pldo, "vdd_l8_l16_l18_l19" },
+	{ "l20", QCOM_SMD_RPM_LDOA, 20, &pm8941_pldo, "vdd_l13_l20_l23_l24" },
+	{ "l21", QCOM_SMD_RPM_LDOA, 21, &pm8941_pldo, "vdd_l21" },
+	{ "l22", QCOM_SMD_RPM_LDOA, 22, &pm8941_pldo, "vdd_l9_l10_l17_l22" },
+	{ "l23", QCOM_SMD_RPM_LDOA, 23, &pm8941_pldo, "vdd_l13_l20_l23_l24" },
+	{ "l24", QCOM_SMD_RPM_LDOA, 24, &pm8941_pldo, "vdd_l13_l20_l23_l24" },
+
+	{ "lvs1", QCOM_SMD_RPM_VSA, 1, &pm8941_switch, "vdd_l2_lvs1_2_3" },
+	{ "lvs2", QCOM_SMD_RPM_VSA, 2, &pm8941_switch, "vdd_l2_lvs1_2_3" },
+	{ "lvs3", QCOM_SMD_RPM_VSA, 3, &pm8941_switch, "vdd_l2_lvs1_2_3" },
+
+	{ "5vs1", QCOM_SMD_RPM_VSA, 4, &pm8941_switch, "vin_5vs" },
+	{ "5vs2", QCOM_SMD_RPM_VSA, 5, &pm8941_switch, "vin_5vs" },
+
+	{}
+};
+
+static const struct of_device_id rpm_of_match[] = {
+	{ .compatible = "qcom,rpm-pm8841-regulators", .data = &rpm_pm8841_regulators },
+	{ .compatible = "qcom,rpm-pm8941-regulators", .data = &rpm_pm8941_regulators },
+	{}
+};
+MODULE_DEVICE_TABLE(of, rpm_of_match);
+
+static int rpm_reg_probe(struct platform_device *pdev)
+{
+	const struct rpm_regulator_data *reg;
+	const struct of_device_id *match;
+	struct regulator_config config = { };
+	struct regulator_dev *rdev;
+	struct qcom_rpm_reg *vreg;
+	struct qcom_smd_rpm *rpm;
+
+	rpm = dev_get_drvdata(pdev->dev.parent);
+	if (!rpm) {
+		dev_err(&pdev->dev, "unable to retrieve handle to rpm\n");
+		return -ENODEV;
+	}
+
+	match = of_match_device(rpm_of_match, &pdev->dev);
+	for (reg = match->data; reg->name; reg++) {
+		vreg = devm_kzalloc(&pdev->dev, sizeof(*vreg), GFP_KERNEL);
+		if (!vreg)
+			return -ENOMEM;
+
+		vreg->dev = &pdev->dev;
+		vreg->type = reg->type;
+		vreg->id = reg->id;
+		vreg->rpm = rpm;
+
+		memcpy(&vreg->desc, reg->desc, sizeof(vreg->desc));
+
+		vreg->desc.id = -1;
+		vreg->desc.owner = THIS_MODULE;
+		vreg->desc.type = REGULATOR_VOLTAGE;
+		vreg->desc.name = reg->name;
+		vreg->desc.supply_name = reg->supply;
+		vreg->desc.of_match = reg->name;
+
+		config.dev = &pdev->dev;
+		config.driver_data = vreg;
+		rdev = devm_regulator_register(&pdev->dev, &vreg->desc, &config);
+		if (IS_ERR(rdev)) {
+			dev_err(&pdev->dev, "failed to register %s\n", reg->name);
+			return PTR_ERR(rdev);
+		}
+	}
+
+	return 0;
+}
+
+static struct platform_driver rpm_reg_driver = {
+	.probe = rpm_reg_probe,
+	.driver = {
+		.name  = "qcom_rpm_smd_regulator",
+		.of_match_table = rpm_of_match,
+	},
+};
+
+static int __init rpm_reg_init(void)
+{
+	return platform_driver_register(&rpm_reg_driver);
+}
+subsys_initcall(rpm_reg_init);
+
+static void __exit rpm_reg_exit(void)
+{
+	platform_driver_unregister(&rpm_reg_driver);
+}
+module_exit(rpm_reg_exit)
+
+MODULE_DESCRIPTION("Qualcomm RPM regulator driver");
+MODULE_LICENSE("GPL v2");