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Date: Mon, 17 Aug 2015 13:07:00 -0700
From: Mark Brown <broonie@...nel.org>
To: Bjorn Andersson <bjorn.andersson@...ymobile.com>,
Andy Gross <agross@...eaurora.org>,
Tim Bird <tim.bird@...ymobile.com>,
Mark Brown <broonie@...nel.org>
Cc: linux-kernel@...r.kernel.org
Subject: Applied "regulator: Regulator driver for the Qualcomm RPM" to the regulator tree
The patch
regulator: Regulator driver for the Qualcomm RPM
has been applied to the regulator tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying
to this mail.
Thanks,
Mark
>From da65e367b67e15fc41cbf646c506c802dd5213b7 Mon Sep 17 00:00:00 2001
From: Bjorn Andersson <bjorn.andersson@...ymobile.com>
Date: Mon, 17 Aug 2015 11:43:59 -0700
Subject: [PATCH] regulator: Regulator driver for the Qualcomm RPM
Driver for regulators exposed by the Resource Power Manager (RPM) found
in devices based on Qualcomm 8974 and newer platforms.
Signed-off-by: Bjorn Andersson <bjorn.andersson@...ymobile.com>
Acked-by: Andy Gross <agross@...eaurora.org>
Tested-by: Tim Bird <tim.bird@...ymobile.com>
Signed-off-by: Mark Brown <broonie@...nel.org>
---
drivers/regulator/Kconfig | 12 ++
drivers/regulator/Makefile | 1 +
drivers/regulator/qcom_smd-regulator.c | 349 +++++++++++++++++++++++++++++++++
3 files changed, 362 insertions(+)
create mode 100644 drivers/regulator/qcom_smd-regulator.c
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index bef3bde..79c3f6d 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -522,6 +522,18 @@ config REGULATOR_QCOM_RPM
Qualcomm RPM as a module. The module will be named
"qcom_rpm-regulator".
+config REGULATOR_QCOM_SMD_RPM
+ tristate "Qualcomm SMD based RPM regulator driver"
+ depends on QCOM_SMD_RPM
+ help
+ If you say yes to this option, support will be included for the
+ regulators exposed by the Resource Power Manager found in Qualcomm
+ 8974 based devices.
+
+ Say M here if you want to include support for the regulators on the
+ Qualcomm RPM as a module. The module will be named
+ "qcom_smd-regulator".
+
config REGULATOR_QCOM_SPMI
tristate "Qualcomm SPMI regulator driver"
depends on SPMI || COMPILE_TEST
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 91bf762..abf70a7 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -62,6 +62,7 @@ obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o
obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o
obj-$(CONFIG_REGULATOR_MT6397) += mt6397-regulator.o
obj-$(CONFIG_REGULATOR_QCOM_RPM) += qcom_rpm-regulator.o
+obj-$(CONFIG_REGULATOR_QCOM_SMD_RPM) += qcom_smd-regulator.o
obj-$(CONFIG_REGULATOR_QCOM_SPMI) += qcom_spmi-regulator.o
obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o
obj-$(CONFIG_REGULATOR_PFUZE100) += pfuze100-regulator.o
diff --git a/drivers/regulator/qcom_smd-regulator.c b/drivers/regulator/qcom_smd-regulator.c
new file mode 100644
index 0000000..9d093ae
--- /dev/null
+++ b/drivers/regulator/qcom_smd-regulator.c
@@ -0,0 +1,349 @@
+/*
+ * 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,
+ .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");
--
2.5.0
--
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