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Date: Mon, 15 Feb 2016 20:26:08 +0000
From: Mark Brown <broonie@...nel.org>
To: Chen Feng <puck.chen@...ilicon.com>, Fei Wang <w.f@...wei.com>,
Xinwei Kong <kong.kongxinwei@...ilicon.com>,
Mark Brown <broonie@...nel.org>
Cc: linux-kernel@...r.kernel.org
Subject: Applied "regulator: hi655x: enable regulator for hi655x PMIC" to the regulator tree
The patch
regulator: hi655x: enable regulator for hi655x PMIC
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 4618119b9be5f5075daf995b2ab807088b14961c Mon Sep 17 00:00:00 2001
From: Chen Feng <puck.chen@...ilicon.com>
Date: Sun, 14 Feb 2016 14:29:22 +0800
Subject: [PATCH] regulator: hi655x: enable regulator for hi655x PMIC
Add the regulator driver for hi655x PMIC.
Signed-off-by: Chen Feng <puck.chen@...ilicon.com>
Signed-off-by: Fei Wang <w.f@...wei.com>
Signed-off-by: Xinwei Kong <kong.kongxinwei@...ilicon.com>
Reviewed-by: Haojian Zhuang <haojian.zhuang@...aro.org>
Signed-off-by: Mark Brown <broonie@...nel.org>
---
drivers/regulator/Kconfig | 8 ++
drivers/regulator/Makefile | 1 +
drivers/regulator/hi655x-regulator.c | 227 +++++++++++++++++++++++++++++++++++
3 files changed, 236 insertions(+)
create mode 100644 drivers/regulator/hi655x-regulator.c
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 8155e80..cd8ce7e 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -261,6 +261,14 @@ config REGULATOR_HI6421
21 general purpose LDOs, 3 dedicated LDOs, and 5 BUCKs. All
of them come with support to either ECO (idle) or sleep mode.
+config REGULATOR_HI655X
+ tristate "Hisilicon HI655X PMIC regulators support"
+ depends on ARCH_HISI || COMPILE_TEST
+ depends on MFD_HI655X_PMIC && OF
+ help
+ This driver provides support for the voltage regulators of the
+ Hisilicon Hi655x PMIC device.
+
config REGULATOR_ISL9305
tristate "Intersil ISL9305 regulator"
depends on I2C
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 980b194..422786c 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -34,6 +34,7 @@ obj-$(CONFIG_REGULATOR_DB8500_PRCMU) += db8500-prcmu.o
obj-$(CONFIG_REGULATOR_FAN53555) += fan53555.o
obj-$(CONFIG_REGULATOR_GPIO) += gpio-regulator.o
obj-$(CONFIG_REGULATOR_HI6421) += hi6421-regulator.o
+obj-$(CONFIG_REGULATOR_HI655X) += hi655x-regulator.o
obj-$(CONFIG_REGULATOR_ISL6271A) += isl6271a-regulator.o
obj-$(CONFIG_REGULATOR_ISL9305) += isl9305.o
obj-$(CONFIG_REGULATOR_LM363X) += lm363x-regulator.o
diff --git a/drivers/regulator/hi655x-regulator.c b/drivers/regulator/hi655x-regulator.c
new file mode 100644
index 0000000..aca1846
--- /dev/null
+++ b/drivers/regulator/hi655x-regulator.c
@@ -0,0 +1,227 @@
+/*
+ * Device driver for regulators in Hi655x IC
+ *
+ * Copyright (c) 2016 Hisilicon.
+ *
+ * Authors:
+ * Chen Feng <puck.chen@...ilicon.com>
+ * Fei Wang <w.f@...wei.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.
+ */
+
+#include <linux/bitops.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/mfd/hi655x-pmic.h>
+
+struct hi655x_regulator {
+ unsigned int disable_reg;
+ unsigned int status_reg;
+ unsigned int ctrl_regs;
+ unsigned int ctrl_mask;
+ struct regulator_desc rdesc;
+};
+
+/* LDO7 & LDO10 */
+static const unsigned int ldo7_voltages[] = {
+ 1800000, 1850000, 2850000, 2900000,
+ 3000000, 3100000, 3200000, 3300000,
+};
+
+static const unsigned int ldo19_voltages[] = {
+ 1800000, 1850000, 1900000, 1750000,
+ 2800000, 2850000, 2900000, 3000000,
+};
+
+static const unsigned int ldo22_voltages[] = {
+ 900000, 1000000, 1050000, 1100000,
+ 1150000, 1175000, 1185000, 1200000,
+};
+
+enum hi655x_regulator_id {
+ HI655X_LDO0,
+ HI655X_LDO1,
+ HI655X_LDO2,
+ HI655X_LDO3,
+ HI655X_LDO4,
+ HI655X_LDO5,
+ HI655X_LDO6,
+ HI655X_LDO7,
+ HI655X_LDO8,
+ HI655X_LDO9,
+ HI655X_LDO10,
+ HI655X_LDO11,
+ HI655X_LDO12,
+ HI655X_LDO13,
+ HI655X_LDO14,
+ HI655X_LDO15,
+ HI655X_LDO16,
+ HI655X_LDO17,
+ HI655X_LDO18,
+ HI655X_LDO19,
+ HI655X_LDO20,
+ HI655X_LDO21,
+ HI655X_LDO22,
+};
+
+static int hi655x_is_enabled(struct regulator_dev *rdev)
+{
+ unsigned int value = 0;
+
+ struct hi655x_regulator *regulator = rdev_get_drvdata(rdev);
+
+ regmap_read(rdev->regmap, regulator->status_reg, &value);
+ return (value & BIT(regulator->ctrl_mask));
+}
+
+static int hi655x_disable(struct regulator_dev *rdev)
+{
+ int ret = 0;
+
+ struct hi655x_regulator *regulator = rdev_get_drvdata(rdev);
+
+ ret = regmap_write(rdev->regmap, regulator->disable_reg,
+ BIT(regulator->ctrl_mask));
+ return ret;
+}
+
+static struct regulator_ops hi655x_regulator_ops = {
+ .enable = regulator_enable_regmap,
+ .disable = hi655x_disable,
+ .is_enabled = hi655x_is_enabled,
+ .list_voltage = regulator_list_voltage_table,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+};
+
+static struct regulator_ops hi655x_ldo_linear_ops = {
+ .enable = regulator_enable_regmap,
+ .disable = hi655x_disable,
+ .is_enabled = hi655x_is_enabled,
+ .list_voltage = regulator_list_voltage_linear,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+};
+
+#define HI655X_LDO(_ID, vreg, vmask, ereg, dreg, \
+ sreg, cmask, vtable) { \
+ .rdesc = { \
+ .name = #_ID, \
+ .of_match = of_match_ptr(#_ID), \
+ .ops = &hi655x_regulator_ops, \
+ .regulators_node = of_match_ptr("regulators"), \
+ .type = REGULATOR_VOLTAGE, \
+ .id = HI655X_##_ID, \
+ .owner = THIS_MODULE, \
+ .n_voltages = ARRAY_SIZE(vtable), \
+ .volt_table = vtable, \
+ .vsel_reg = HI655X_BUS_ADDR(vreg), \
+ .vsel_mask = vmask, \
+ .enable_reg = HI655X_BUS_ADDR(ereg), \
+ .enable_mask = BIT(cmask), \
+ }, \
+ .disable_reg = HI655X_BUS_ADDR(dreg), \
+ .status_reg = HI655X_BUS_ADDR(sreg), \
+ .ctrl_mask = cmask, \
+}
+
+#define HI655X_LDO_LINEAR(_ID, vreg, vmask, ereg, dreg, \
+ sreg, cmask, minv, nvolt, vstep) { \
+ .rdesc = { \
+ .name = #_ID, \
+ .of_match = of_match_ptr(#_ID), \
+ .ops = &hi655x_ldo_linear_ops, \
+ .regulators_node = of_match_ptr("regulators"), \
+ .type = REGULATOR_VOLTAGE, \
+ .id = HI655X_##_ID, \
+ .owner = THIS_MODULE, \
+ .min_uV = minv, \
+ .n_voltages = nvolt, \
+ .uV_step = vstep, \
+ .vsel_reg = HI655X_BUS_ADDR(vreg), \
+ .vsel_mask = vmask, \
+ .enable_reg = HI655X_BUS_ADDR(ereg), \
+ .enable_mask = BIT(cmask), \
+ }, \
+ .disable_reg = HI655X_BUS_ADDR(dreg), \
+ .status_reg = HI655X_BUS_ADDR(sreg), \
+ .ctrl_mask = cmask, \
+}
+
+static struct hi655x_regulator regulators[] = {
+ HI655X_LDO_LINEAR(LDO2, 0x72, 0x07, 0x29, 0x2a, 0x2b, 0x01,
+ 2500000, 8, 100000),
+ HI655X_LDO(LDO7, 0x78, 0x07, 0x29, 0x2a, 0x2b, 0x06, ldo7_voltages),
+ HI655X_LDO(LDO10, 0x78, 0x07, 0x29, 0x2a, 0x2b, 0x01, ldo7_voltages),
+ HI655X_LDO_LINEAR(LDO13, 0x7e, 0x07, 0x2c, 0x2d, 0x2e, 0x04,
+ 1600000, 8, 50000),
+ HI655X_LDO_LINEAR(LDO14, 0x7f, 0x07, 0x2c, 0x2d, 0x2e, 0x05,
+ 2500000, 8, 100000),
+ HI655X_LDO_LINEAR(LDO15, 0x80, 0x07, 0x2c, 0x2d, 0x2e, 0x06,
+ 1600000, 8, 50000),
+ HI655X_LDO_LINEAR(LDO17, 0x82, 0x07, 0x2f, 0x30, 0x31, 0x00,
+ 2500000, 8, 100000),
+ HI655X_LDO(LDO19, 0x84, 0x07, 0x2f, 0x30, 0x31, 0x02, ldo19_voltages),
+ HI655X_LDO_LINEAR(LDO21, 0x86, 0x07, 0x2f, 0x30, 0x31, 0x04,
+ 1650000, 8, 50000),
+ HI655X_LDO(LDO22, 0x87, 0x07, 0x2f, 0x30, 0x31, 0x05, ldo22_voltages),
+};
+
+static int hi655x_regulator_probe(struct platform_device *pdev)
+{
+ unsigned int i;
+ struct hi655x_regulator *regulator;
+ struct hi655x_pmic *pmic;
+ struct regulator_config config = { };
+ struct regulator_dev *rdev;
+
+ pmic = dev_get_drvdata(pdev->dev.parent);
+ if (!pmic) {
+ dev_err(&pdev->dev, "no pmic in the regulator parent node\n");
+ return -ENODEV;
+ }
+
+ regulator = devm_kzalloc(&pdev->dev, sizeof(*regulator), GFP_KERNEL);
+ if (!regulator)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, regulator);
+
+ config.dev = pdev->dev.parent;
+ config.regmap = pmic->regmap;
+ config.driver_data = regulator;
+ for (i = 0; i < ARRAY_SIZE(regulators); i++) {
+ rdev = devm_regulator_register(&pdev->dev,
+ ®ulators[i].rdesc,
+ &config);
+ if (IS_ERR(rdev)) {
+ dev_err(&pdev->dev, "failed to register regulator %s\n",
+ regulator->rdesc.name);
+ return PTR_ERR(rdev);
+ }
+ }
+ return 0;
+}
+
+static struct platform_driver hi655x_regulator_driver = {
+ .driver = {
+ .name = "hi655x-regulator",
+ },
+ .probe = hi655x_regulator_probe,
+};
+module_platform_driver(hi655x_regulator_driver);
+
+MODULE_AUTHOR("Chen Feng <puck.chen@...ilicon.com>");
+MODULE_DESCRIPTION("Hisilicon Hi655x regulator driver");
+MODULE_LICENSE("GPL v2");
--
2.7.0
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