* [PATCH v2 0/4] Add support for Ricoh RN5T618 PMIC
@ 2014-08-30 12:50 ` Beniamino Galvani
0 siblings, 0 replies; 16+ messages in thread
From: Beniamino Galvani @ 2014-08-30 12:50 UTC (permalink / raw)
To: linux-kernel
Cc: Lee Jones, Samuel Ortiz, Mark Brown, Liam Girdwood,
Wim Van Sebroeck, Guenter Roeck, linux-watchdog, devicetree,
Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
Grant Likely, Carlo Caione, Beniamino Galvani
Ricoh RN5T618 is a power management IC which includes 3 step-down DCDC
converters, 7 low-dropout regulators, a Li-ion battery charger, fuel
gauge, ADC, GPIOs and a watchdog timer.
This series adds a MFD core driver and separate drivers to support the
regulator and watchdog functionalities.
The patchset has been tested on a Tronsmart Vega S89 Elite TV box on
top of other patches needed to support the Amlogic Meson SoC. The tree
with all the changes is available at:
https://github.com/bengal/linux/tree/rn5t618-v2
Changes since v1:
- moved all header file changes to the first patch
- mfd: allow modular build
- mfd: removed printk after mfd registration
- regulator: rebased on regulator/for-next
- wdt: initialized heartbeat parameter to 0 instead of -1
- wdt: simplified code path in set_timeout function
- wdt: fixed module unloading
- wdt: made 'time' unsigned in struct rn5t618_wdt_map
Beniamino Galvani (4):
mfd: Add Ricoh RN5T618 PMIC core driver
regulator: add driver for Ricoh RN5T618 regulators
watchdog: add driver for Ricoh RN5T618 watchdog
mfd: rn5t618: document device tree bindings
Documentation/devicetree/bindings/mfd/rn5t618.txt | 36 ++++
drivers/mfd/Kconfig | 11 +
drivers/mfd/Makefile | 1 +
drivers/mfd/rn5t618.c | 134 ++++++++++++
drivers/regulator/Kconfig | 6 +
drivers/regulator/Makefile | 1 +
drivers/regulator/rn5t618-regulator.c | 143 +++++++++++++
drivers/watchdog/Kconfig | 11 +
drivers/watchdog/Makefile | 1 +
drivers/watchdog/rn5t618_wdt.c | 198 ++++++++++++++++++
include/linux/mfd/rn5t618.h | 228 +++++++++++++++++++++
11 files changed, 770 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/rn5t618.txt
create mode 100644 drivers/mfd/rn5t618.c
create mode 100644 drivers/regulator/rn5t618-regulator.c
create mode 100644 drivers/watchdog/rn5t618_wdt.c
create mode 100644 include/linux/mfd/rn5t618.h
--
1.7.10.4
^ permalink raw reply [flat|nested] 16+ messages in thread
* [PATCH v2 0/4] Add support for Ricoh RN5T618 PMIC
@ 2014-08-30 12:50 ` Beniamino Galvani
0 siblings, 0 replies; 16+ messages in thread
From: Beniamino Galvani @ 2014-08-30 12:50 UTC (permalink / raw)
To: linux-kernel-u79uwXL29TY76Z2rM5mHXA
Cc: Lee Jones, Samuel Ortiz, Mark Brown, Liam Girdwood,
Wim Van Sebroeck, Guenter Roeck,
linux-watchdog-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Pawel Moll,
Mark Rutland, Ian Campbell, Kumar Gala, Grant Likely,
Carlo Caione, Beniamino Galvani
Ricoh RN5T618 is a power management IC which includes 3 step-down DCDC
converters, 7 low-dropout regulators, a Li-ion battery charger, fuel
gauge, ADC, GPIOs and a watchdog timer.
This series adds a MFD core driver and separate drivers to support the
regulator and watchdog functionalities.
The patchset has been tested on a Tronsmart Vega S89 Elite TV box on
top of other patches needed to support the Amlogic Meson SoC. The tree
with all the changes is available at:
https://github.com/bengal/linux/tree/rn5t618-v2
Changes since v1:
- moved all header file changes to the first patch
- mfd: allow modular build
- mfd: removed printk after mfd registration
- regulator: rebased on regulator/for-next
- wdt: initialized heartbeat parameter to 0 instead of -1
- wdt: simplified code path in set_timeout function
- wdt: fixed module unloading
- wdt: made 'time' unsigned in struct rn5t618_wdt_map
Beniamino Galvani (4):
mfd: Add Ricoh RN5T618 PMIC core driver
regulator: add driver for Ricoh RN5T618 regulators
watchdog: add driver for Ricoh RN5T618 watchdog
mfd: rn5t618: document device tree bindings
Documentation/devicetree/bindings/mfd/rn5t618.txt | 36 ++++
drivers/mfd/Kconfig | 11 +
drivers/mfd/Makefile | 1 +
drivers/mfd/rn5t618.c | 134 ++++++++++++
drivers/regulator/Kconfig | 6 +
drivers/regulator/Makefile | 1 +
drivers/regulator/rn5t618-regulator.c | 143 +++++++++++++
drivers/watchdog/Kconfig | 11 +
drivers/watchdog/Makefile | 1 +
drivers/watchdog/rn5t618_wdt.c | 198 ++++++++++++++++++
include/linux/mfd/rn5t618.h | 228 +++++++++++++++++++++
11 files changed, 770 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/rn5t618.txt
create mode 100644 drivers/mfd/rn5t618.c
create mode 100644 drivers/regulator/rn5t618-regulator.c
create mode 100644 drivers/watchdog/rn5t618_wdt.c
create mode 100644 include/linux/mfd/rn5t618.h
--
1.7.10.4
--
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^ permalink raw reply [flat|nested] 16+ messages in thread
* [PATCH v2 1/4] mfd: Add Ricoh RN5T618 PMIC core driver
@ 2014-08-30 12:50 ` Beniamino Galvani
0 siblings, 0 replies; 16+ messages in thread
From: Beniamino Galvani @ 2014-08-30 12:50 UTC (permalink / raw)
To: linux-kernel
Cc: Lee Jones, Samuel Ortiz, Mark Brown, Liam Girdwood,
Wim Van Sebroeck, Guenter Roeck, linux-watchdog, devicetree,
Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
Grant Likely, Carlo Caione, Beniamino Galvani
Ricoh RN5T618 is a power management IC which integrates 3 step-down
DCDC converters, 7 low-dropout regulators, a Li-ion battery charger,
fuel gauge, ADC, GPIOs and a watchdog timer.
This commit adds a MFD core driver to support the I2C communication
with the device.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
---
drivers/mfd/Kconfig | 11 +++
drivers/mfd/Makefile | 1 +
drivers/mfd/rn5t618.c | 134 +++++++++++++++++++++++++
include/linux/mfd/rn5t618.h | 228 +++++++++++++++++++++++++++++++++++++++++++
4 files changed, 374 insertions(+)
create mode 100644 drivers/mfd/rn5t618.c
create mode 100644 include/linux/mfd/rn5t618.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 8d5fad2..843da5d 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -582,6 +582,17 @@ config MFD_RC5T583
Additional drivers must be enabled in order to use the
different functionality of the device.
+config MFD_RN5T618
+ tristate "Ricoh RN5T5618 PMIC"
+ depends on I2C
+ select MFD_CORE
+ select REGMAP_I2C
+ help
+ Say yes here to add support for the Ricoh RN5T618 PMIC. This
+ driver provides common support for accessing the device,
+ additional drivers must be enabled in order to use the
+ functionality of the device.
+
config MFD_SEC_CORE
bool "SAMSUNG Electronics PMIC Series Support"
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index f001487..b945899 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -160,6 +160,7 @@ obj-$(CONFIG_MFD_INTEL_MSIC) += intel_msic.o
obj-$(CONFIG_MFD_PALMAS) += palmas.o
obj-$(CONFIG_MFD_VIPERBOARD) += viperboard.o
obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o
+obj-$(CONFIG_MFD_RN5T618) += rn5t618.o
obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o
obj-$(CONFIG_MFD_SYSCON) += syscon.o
obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o
diff --git a/drivers/mfd/rn5t618.c b/drivers/mfd/rn5t618.c
new file mode 100644
index 0000000..6668571
--- /dev/null
+++ b/drivers/mfd/rn5t618.c
@@ -0,0 +1,134 @@
+/*
+ * MFD core 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/i2c.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/rn5t618.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+
+static const struct mfd_cell rn5t618_cells[] = {
+ { .name = "rn5t618-regulator" },
+ { .name = "rn5t618-wdt" },
+};
+
+static bool rn5t618_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case RN5T618_WATCHDOGCNT:
+ case RN5T618_DCIRQ:
+ case RN5T618_ILIMDATAH ... RN5T618_AIN0DATAL:
+ case RN5T618_IR_ADC1 ... RN5T618_IR_ADC3:
+ case RN5T618_IR_GPR:
+ case RN5T618_IR_GPF:
+ case RN5T618_MON_IOIN:
+ case RN5T618_INTMON:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config rn5t618_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .volatile_reg = rn5t618_volatile_reg,
+ .max_register = RN5T618_MAX_REG,
+ .cache_type = REGCACHE_RBTREE,
+};
+
+static struct rn5t618 *rn5t618_pm_power_off;
+
+static void rn5t618_power_off(void)
+{
+ /* disable automatic repower-on */
+ regmap_update_bits(rn5t618_pm_power_off->regmap, RN5T618_REPCNT,
+ RN5T618_REPCNT_REPWRON, 0);
+ /* start power-off sequence */
+ regmap_update_bits(rn5t618_pm_power_off->regmap, RN5T618_SLPCNT,
+ RN5T618_SLPCNT_SWPWROFF, RN5T618_SLPCNT_SWPWROFF);
+}
+
+static int rn5t618_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct rn5t618 *priv;
+ int ret;
+
+ priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c, priv);
+
+ priv->regmap = devm_regmap_init_i2c(i2c, &rn5t618_regmap_config);
+ if (IS_ERR(priv->regmap)) {
+ ret = PTR_ERR(priv->regmap);
+ dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = mfd_add_devices(&i2c->dev, -1, rn5t618_cells,
+ ARRAY_SIZE(rn5t618_cells), NULL, 0, NULL);
+ if (ret) {
+ dev_err(&i2c->dev, "failed to add sub-devices: %d\n", ret);
+ return ret;
+ }
+
+ if (!pm_power_off) {
+ rn5t618_pm_power_off = priv;
+ pm_power_off = rn5t618_power_off;
+ }
+
+ return 0;
+}
+
+static int rn5t618_i2c_remove(struct i2c_client *i2c)
+{
+ struct rn5t618 *priv = i2c_get_clientdata(i2c);
+
+ if (priv == rn5t618_pm_power_off) {
+ rn5t618_pm_power_off = NULL;
+ pm_power_off = NULL;
+ }
+
+ mfd_remove_devices(&i2c->dev);
+ return 0;
+}
+
+static const struct of_device_id rn5t618_of_match[] = {
+ { .compatible = "ricoh,rn5t618" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, rn5t618_of_match);
+
+static const struct i2c_device_id rn5t618_i2c_id[] = {
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, rn5t618_i2c_id);
+
+static struct i2c_driver rn5t618_i2c_driver = {
+ .driver = {
+ .name = "rn5t618",
+ .of_match_table = of_match_ptr(rn5t618_of_match),
+ },
+ .probe = rn5t618_i2c_probe,
+ .remove = rn5t618_i2c_remove,
+ .id_table = rn5t618_i2c_id,
+};
+
+module_i2c_driver(rn5t618_i2c_driver);
+
+MODULE_AUTHOR("Beniamino Galvani <b.galvani@gmail.com>");
+MODULE_DESCRIPTION("Ricoh RN5T618 MFD driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/mfd/rn5t618.h b/include/linux/mfd/rn5t618.h
new file mode 100644
index 0000000..c72d534
--- /dev/null
+++ b/include/linux/mfd/rn5t618.h
@@ -0,0 +1,228 @@
+/*
+ * MFD core 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/>.
+ */
+
+#ifndef __LINUX_MFD_RN5T618_H
+#define __LINUX_MFD_RN5T618_H
+
+#include <linux/regmap.h>
+
+#define RN5T618_LSIVER 0x00
+#define RN5T618_OTPVER 0x01
+#define RN5T618_IODAC 0x02
+#define RN5T618_VINDAC 0x03
+#define RN5T618_CPUCNT 0x06
+#define RN5T618_PSWR 0x07
+#define RN5T618_PONHIS 0x09
+#define RN5T618_POFFHIS 0x0a
+#define RN5T618_WATCHDOG 0x0b
+#define RN5T618_WATCHDOGCNT 0x0c
+#define RN5T618_PWRFUNC 0x0d
+#define RN5T618_SLPCNT 0x0e
+#define RN5T618_REPCNT 0x0f
+#define RN5T618_PWRONTIMSET 0x10
+#define RN5T618_NOETIMSETCNT 0x11
+#define RN5T618_PWRIREN 0x12
+#define RN5T618_PWRIRQ 0x13
+#define RN5T618_PWRMON 0x14
+#define RN5T618_PWRIRSEL 0x15
+#define RN5T618_DC1_SLOT 0x16
+#define RN5T618_DC2_SLOT 0x17
+#define RN5T618_DC3_SLOT 0x18
+#define RN5T618_LDO1_SLOT 0x1b
+#define RN5T618_LDO2_SLOT 0x1c
+#define RN5T618_LDO3_SLOT 0x1d
+#define RN5T618_LDO4_SLOT 0x1e
+#define RN5T618_LDO5_SLOT 0x1f
+#define RN5T618_PSO0_SLOT 0x25
+#define RN5T618_PSO1_SLOT 0x26
+#define RN5T618_PSO2_SLOT 0x27
+#define RN5T618_PSO3_SLOT 0x28
+#define RN5T618_LDORTC1_SLOT 0x2a
+#define RN5T618_DC1CTL 0x2c
+#define RN5T618_DC1CTL2 0x2d
+#define RN5T618_DC2CTL 0x2e
+#define RN5T618_DC2CTL2 0x2f
+#define RN5T618_DC3CTL 0x30
+#define RN5T618_DC3CTL2 0x31
+#define RN5T618_DC1DAC 0x36
+#define RN5T618_DC2DAC 0x37
+#define RN5T618_DC3DAC 0x38
+#define RN5T618_DC1DAC_SLP 0x3b
+#define RN5T618_DC2DAC_SLP 0x3c
+#define RN5T618_DC3DAC_SLP 0x3d
+#define RN5T618_DCIREN 0x40
+#define RN5T618_DCIRQ 0x41
+#define RN5T618_DCIRMON 0x42
+#define RN5T618_LDOEN1 0x44
+#define RN5T618_LDOEN2 0x45
+#define RN5T618_LDODIS 0x46
+#define RN5T618_LDO1DAC 0x4c
+#define RN5T618_LDO2DAC 0x4d
+#define RN5T618_LDO3DAC 0x4e
+#define RN5T618_LDO4DAC 0x4f
+#define RN5T618_LDO5DAC 0x50
+#define RN5T618_LDORTCDAC 0x56
+#define RN5T618_LDORTC2DAC 0x57
+#define RN5T618_LDO1DAC_SLP 0x58
+#define RN5T618_LDO2DAC_SLP 0x59
+#define RN5T618_LDO3DAC_SLP 0x5a
+#define RN5T618_LDO4DAC_SLP 0x5b
+#define RN5T618_LDO5DAC_SLP 0x5c
+#define RN5T618_ADCCNT1 0x64
+#define RN5T618_ADCCNT2 0x65
+#define RN5T618_ADCCNT3 0x66
+#define RN5T618_ILIMDATAH 0x68
+#define RN5T618_ILIMDATAL 0x69
+#define RN5T618_VBATDATAH 0x6a
+#define RN5T618_VBATDATAL 0x6b
+#define RN5T618_VADPDATAH 0x6c
+#define RN5T618_VADPDATAL 0x6d
+#define RN5T618_VUSBDATAH 0x6e
+#define RN5T618_VUSBDATAL 0x6f
+#define RN5T618_VSYSDATAH 0x70
+#define RN5T618_VSYSDATAL 0x71
+#define RN5T618_VTHMDATAH 0x72
+#define RN5T618_VTHMDATAL 0x73
+#define RN5T618_AIN1DATAH 0x74
+#define RN5T618_AIN1DATAL 0x75
+#define RN5T618_AIN0DATAH 0x76
+#define RN5T618_AIN0DATAL 0x77
+#define RN5T618_ILIMTHL 0x78
+#define RN5T618_ILIMTHH 0x79
+#define RN5T618_VBATTHL 0x7a
+#define RN5T618_VBATTHH 0x7b
+#define RN5T618_VADPTHL 0x7c
+#define RN5T618_VADPTHH 0x7d
+#define RN5T618_VUSBTHL 0x7e
+#define RN5T618_VUSBTHH 0x7f
+#define RN5T618_VSYSTHL 0x80
+#define RN5T618_VSYSTHH 0x81
+#define RN5T618_VTHMTHL 0x82
+#define RN5T618_VTHMTHH 0x83
+#define RN5T618_AIN1THL 0x84
+#define RN5T618_AIN1THH 0x85
+#define RN5T618_AIN0THL 0x86
+#define RN5T618_AIN0THH 0x87
+#define RN5T618_EN_ADCIR1 0x88
+#define RN5T618_EN_ADCIR2 0x89
+#define RN5T618_EN_ADCIR3 0x8a
+#define RN5T618_IR_ADC1 0x8c
+#define RN5T618_IR_ADC2 0x8d
+#define RN5T618_IR_ADC3 0x8e
+#define RN5T618_IOSEL 0x90
+#define RN5T618_IOOUT 0x91
+#define RN5T618_GPEDGE1 0x92
+#define RN5T618_GPEDGE2 0x93
+#define RN5T618_EN_GPIR 0x94
+#define RN5T618_IR_GPR 0x95
+#define RN5T618_IR_GPF 0x96
+#define RN5T618_MON_IOIN 0x97
+#define RN5T618_GPLED_FUNC 0x98
+#define RN5T618_INTPOL 0x9c
+#define RN5T618_INTEN 0x9d
+#define RN5T618_INTMON 0x9e
+#define RN5T618_PREVINDAC 0xb0
+#define RN5T618_BATDAC 0xb1
+#define RN5T618_CHGCTL1 0xb3
+#define RN5T618_CHGCTL2 0xb4
+#define RN5T618_VSYSSET 0xb5
+#define RN5T618_REGISET1 0xb6
+#define RN5T618_REGISET2 0xb7
+#define RN5T618_CHGISET 0xb8
+#define RN5T618_TIMSET 0xb9
+#define RN5T618_BATSET1 0xba
+#define RN5T618_BATSET2 0xbb
+#define RN5T618_DIESET 0xbc
+#define RN5T618_CHGSTATE 0xbd
+#define RN5T618_CHGCTRL_IRFMASK 0xbe
+#define RN5T618_CHGSTAT_IRFMASK1 0xbf
+#define RN5T618_CHGSTAT_IRFMASK2 0xc0
+#define RN5T618_CHGERR_IRFMASK 0xc1
+#define RN5T618_CHGCTRL_IRR 0xc2
+#define RN5T618_CHGSTAT_IRR1 0xc3
+#define RN5T618_CHGSTAT_IRR2 0xc4
+#define RN5T618_CHGERR_IRR 0xc5
+#define RN5T618_CHGCTRL_MONI 0xc6
+#define RN5T618_CHGSTAT_MONI1 0xc7
+#define RN5T618_CHGSTAT_MONI2 0xc8
+#define RN5T618_CHGERR_MONI 0xc9
+#define RN5T618_CHGCTRL_DETMOD1 0xca
+#define RN5T618_CHGCTRL_DETMOD2 0xcb
+#define RN5T618_CHGSTAT_DETMOD1 0xcc
+#define RN5T618_CHGSTAT_DETMOD2 0xcd
+#define RN5T618_CHGSTAT_DETMOD3 0xce
+#define RN5T618_CHGERR_DETMOD1 0xcf
+#define RN5T618_CHGERR_DETMOD2 0xd0
+#define RN5T618_CHGOSCCTL 0xd4
+#define RN5T618_CHGOSCSCORESET1 0xd5
+#define RN5T618_CHGOSCSCORESET2 0xd6
+#define RN5T618_CHGOSCSCORESET3 0xd7
+#define RN5T618_CHGOSCFREQSET1 0xd8
+#define RN5T618_CHGOSCFREQSET2 0xd9
+#define RN5T618_CONTROL 0xe0
+#define RN5T618_SOC 0xe1
+#define RN5T618_RE_CAP_H 0xe2
+#define RN5T618_RE_CAP_L 0xe3
+#define RN5T618_FA_CAP_H 0xe4
+#define RN5T618_FA_CAP_L 0xe5
+#define RN5T618_AGE 0xe6
+#define RN5T618_TT_EMPTY_H 0xe7
+#define RN5T618_TT_EMPTY_L 0xe8
+#define RN5T618_TT_FULL_H 0xe9
+#define RN5T618_TT_FULL_L 0xea
+#define RN5T618_VOLTAGE_1 0xeb
+#define RN5T618_VOLTAGE_0 0xec
+#define RN5T618_TEMP_1 0xed
+#define RN5T618_TEMP_0 0xee
+#define RN5T618_CC_CTRL 0xef
+#define RN5T618_CC_COUNT2 0xf0
+#define RN5T618_CC_COUNT1 0xf1
+#define RN5T618_CC_COUNT0 0xf2
+#define RN5T618_CC_SUMREG3 0xf3
+#define RN5T618_CC_SUMREG2 0xf4
+#define RN5T618_CC_SUMREG1 0xf5
+#define RN5T618_CC_SUMREG0 0xf6
+#define RN5T618_CC_OFFREG1 0xf7
+#define RN5T618_CC_OFFREG0 0xf8
+#define RN5T618_CC_GAINREG1 0xf9
+#define RN5T618_CC_GAINREG0 0xfa
+#define RN5T618_CC_AVEREG1 0xfb
+#define RN5T618_CC_AVEREG0 0xfc
+#define RN5T618_MAX_REG 0xfc
+
+#define RN5T618_REPCNT_REPWRON BIT(0)
+#define RN5T618_SLPCNT_SWPWROFF BIT(0)
+#define RN5T618_WATCHDOG_WDOGEN BIT(2)
+#define RN5T618_WATCHDOG_WDOGTIM_M (BIT(0) | BIT(1))
+#define RN5T618_WATCHDOG_WDOGTIM_S 0
+#define RN5T618_PWRIRQ_IR_WDOG BIT(6)
+
+enum {
+ RN5T618_DCDC1,
+ RN5T618_DCDC2,
+ RN5T618_DCDC3,
+ RN5T618_LDO1,
+ RN5T618_LDO2,
+ RN5T618_LDO3,
+ RN5T618_LDO4,
+ RN5T618_LDO5,
+ RN5T618_LDORTC1,
+ RN5T618_LDORTC2,
+ RN5T618_REG_NUM,
+};
+
+struct rn5t618 {
+ struct regmap *regmap;
+};
+
+#endif /* __LINUX_MFD_RN5T618_H */
--
1.7.10.4
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH v2 1/4] mfd: Add Ricoh RN5T618 PMIC core driver
@ 2014-08-30 12:50 ` Beniamino Galvani
0 siblings, 0 replies; 16+ messages in thread
From: Beniamino Galvani @ 2014-08-30 12:50 UTC (permalink / raw)
To: linux-kernel-u79uwXL29TY76Z2rM5mHXA
Cc: Lee Jones, Samuel Ortiz, Mark Brown, Liam Girdwood,
Wim Van Sebroeck, Guenter Roeck,
linux-watchdog-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Pawel Moll,
Mark Rutland, Ian Campbell, Kumar Gala, Grant Likely,
Carlo Caione, Beniamino Galvani
Ricoh RN5T618 is a power management IC which integrates 3 step-down
DCDC converters, 7 low-dropout regulators, a Li-ion battery charger,
fuel gauge, ADC, GPIOs and a watchdog timer.
This commit adds a MFD core driver to support the I2C communication
with the device.
Signed-off-by: Beniamino Galvani <b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
drivers/mfd/Kconfig | 11 +++
drivers/mfd/Makefile | 1 +
drivers/mfd/rn5t618.c | 134 +++++++++++++++++++++++++
include/linux/mfd/rn5t618.h | 228 +++++++++++++++++++++++++++++++++++++++++++
4 files changed, 374 insertions(+)
create mode 100644 drivers/mfd/rn5t618.c
create mode 100644 include/linux/mfd/rn5t618.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 8d5fad2..843da5d 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -582,6 +582,17 @@ config MFD_RC5T583
Additional drivers must be enabled in order to use the
different functionality of the device.
+config MFD_RN5T618
+ tristate "Ricoh RN5T5618 PMIC"
+ depends on I2C
+ select MFD_CORE
+ select REGMAP_I2C
+ help
+ Say yes here to add support for the Ricoh RN5T618 PMIC. This
+ driver provides common support for accessing the device,
+ additional drivers must be enabled in order to use the
+ functionality of the device.
+
config MFD_SEC_CORE
bool "SAMSUNG Electronics PMIC Series Support"
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index f001487..b945899 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -160,6 +160,7 @@ obj-$(CONFIG_MFD_INTEL_MSIC) += intel_msic.o
obj-$(CONFIG_MFD_PALMAS) += palmas.o
obj-$(CONFIG_MFD_VIPERBOARD) += viperboard.o
obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o
+obj-$(CONFIG_MFD_RN5T618) += rn5t618.o
obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o
obj-$(CONFIG_MFD_SYSCON) += syscon.o
obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o
diff --git a/drivers/mfd/rn5t618.c b/drivers/mfd/rn5t618.c
new file mode 100644
index 0000000..6668571
--- /dev/null
+++ b/drivers/mfd/rn5t618.c
@@ -0,0 +1,134 @@
+/*
+ * MFD core driver for Ricoh RN5T618 PMIC
+ *
+ * Copyright (C) 2014 Beniamino Galvani <b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
+ *
+ * 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/i2c.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/rn5t618.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+
+static const struct mfd_cell rn5t618_cells[] = {
+ { .name = "rn5t618-regulator" },
+ { .name = "rn5t618-wdt" },
+};
+
+static bool rn5t618_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case RN5T618_WATCHDOGCNT:
+ case RN5T618_DCIRQ:
+ case RN5T618_ILIMDATAH ... RN5T618_AIN0DATAL:
+ case RN5T618_IR_ADC1 ... RN5T618_IR_ADC3:
+ case RN5T618_IR_GPR:
+ case RN5T618_IR_GPF:
+ case RN5T618_MON_IOIN:
+ case RN5T618_INTMON:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config rn5t618_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .volatile_reg = rn5t618_volatile_reg,
+ .max_register = RN5T618_MAX_REG,
+ .cache_type = REGCACHE_RBTREE,
+};
+
+static struct rn5t618 *rn5t618_pm_power_off;
+
+static void rn5t618_power_off(void)
+{
+ /* disable automatic repower-on */
+ regmap_update_bits(rn5t618_pm_power_off->regmap, RN5T618_REPCNT,
+ RN5T618_REPCNT_REPWRON, 0);
+ /* start power-off sequence */
+ regmap_update_bits(rn5t618_pm_power_off->regmap, RN5T618_SLPCNT,
+ RN5T618_SLPCNT_SWPWROFF, RN5T618_SLPCNT_SWPWROFF);
+}
+
+static int rn5t618_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct rn5t618 *priv;
+ int ret;
+
+ priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c, priv);
+
+ priv->regmap = devm_regmap_init_i2c(i2c, &rn5t618_regmap_config);
+ if (IS_ERR(priv->regmap)) {
+ ret = PTR_ERR(priv->regmap);
+ dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = mfd_add_devices(&i2c->dev, -1, rn5t618_cells,
+ ARRAY_SIZE(rn5t618_cells), NULL, 0, NULL);
+ if (ret) {
+ dev_err(&i2c->dev, "failed to add sub-devices: %d\n", ret);
+ return ret;
+ }
+
+ if (!pm_power_off) {
+ rn5t618_pm_power_off = priv;
+ pm_power_off = rn5t618_power_off;
+ }
+
+ return 0;
+}
+
+static int rn5t618_i2c_remove(struct i2c_client *i2c)
+{
+ struct rn5t618 *priv = i2c_get_clientdata(i2c);
+
+ if (priv == rn5t618_pm_power_off) {
+ rn5t618_pm_power_off = NULL;
+ pm_power_off = NULL;
+ }
+
+ mfd_remove_devices(&i2c->dev);
+ return 0;
+}
+
+static const struct of_device_id rn5t618_of_match[] = {
+ { .compatible = "ricoh,rn5t618" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, rn5t618_of_match);
+
+static const struct i2c_device_id rn5t618_i2c_id[] = {
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, rn5t618_i2c_id);
+
+static struct i2c_driver rn5t618_i2c_driver = {
+ .driver = {
+ .name = "rn5t618",
+ .of_match_table = of_match_ptr(rn5t618_of_match),
+ },
+ .probe = rn5t618_i2c_probe,
+ .remove = rn5t618_i2c_remove,
+ .id_table = rn5t618_i2c_id,
+};
+
+module_i2c_driver(rn5t618_i2c_driver);
+
+MODULE_AUTHOR("Beniamino Galvani <b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>");
+MODULE_DESCRIPTION("Ricoh RN5T618 MFD driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/mfd/rn5t618.h b/include/linux/mfd/rn5t618.h
new file mode 100644
index 0000000..c72d534
--- /dev/null
+++ b/include/linux/mfd/rn5t618.h
@@ -0,0 +1,228 @@
+/*
+ * MFD core driver for Ricoh RN5T618 PMIC
+ *
+ * Copyright (C) 2014 Beniamino Galvani <b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
+ *
+ * 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/>.
+ */
+
+#ifndef __LINUX_MFD_RN5T618_H
+#define __LINUX_MFD_RN5T618_H
+
+#include <linux/regmap.h>
+
+#define RN5T618_LSIVER 0x00
+#define RN5T618_OTPVER 0x01
+#define RN5T618_IODAC 0x02
+#define RN5T618_VINDAC 0x03
+#define RN5T618_CPUCNT 0x06
+#define RN5T618_PSWR 0x07
+#define RN5T618_PONHIS 0x09
+#define RN5T618_POFFHIS 0x0a
+#define RN5T618_WATCHDOG 0x0b
+#define RN5T618_WATCHDOGCNT 0x0c
+#define RN5T618_PWRFUNC 0x0d
+#define RN5T618_SLPCNT 0x0e
+#define RN5T618_REPCNT 0x0f
+#define RN5T618_PWRONTIMSET 0x10
+#define RN5T618_NOETIMSETCNT 0x11
+#define RN5T618_PWRIREN 0x12
+#define RN5T618_PWRIRQ 0x13
+#define RN5T618_PWRMON 0x14
+#define RN5T618_PWRIRSEL 0x15
+#define RN5T618_DC1_SLOT 0x16
+#define RN5T618_DC2_SLOT 0x17
+#define RN5T618_DC3_SLOT 0x18
+#define RN5T618_LDO1_SLOT 0x1b
+#define RN5T618_LDO2_SLOT 0x1c
+#define RN5T618_LDO3_SLOT 0x1d
+#define RN5T618_LDO4_SLOT 0x1e
+#define RN5T618_LDO5_SLOT 0x1f
+#define RN5T618_PSO0_SLOT 0x25
+#define RN5T618_PSO1_SLOT 0x26
+#define RN5T618_PSO2_SLOT 0x27
+#define RN5T618_PSO3_SLOT 0x28
+#define RN5T618_LDORTC1_SLOT 0x2a
+#define RN5T618_DC1CTL 0x2c
+#define RN5T618_DC1CTL2 0x2d
+#define RN5T618_DC2CTL 0x2e
+#define RN5T618_DC2CTL2 0x2f
+#define RN5T618_DC3CTL 0x30
+#define RN5T618_DC3CTL2 0x31
+#define RN5T618_DC1DAC 0x36
+#define RN5T618_DC2DAC 0x37
+#define RN5T618_DC3DAC 0x38
+#define RN5T618_DC1DAC_SLP 0x3b
+#define RN5T618_DC2DAC_SLP 0x3c
+#define RN5T618_DC3DAC_SLP 0x3d
+#define RN5T618_DCIREN 0x40
+#define RN5T618_DCIRQ 0x41
+#define RN5T618_DCIRMON 0x42
+#define RN5T618_LDOEN1 0x44
+#define RN5T618_LDOEN2 0x45
+#define RN5T618_LDODIS 0x46
+#define RN5T618_LDO1DAC 0x4c
+#define RN5T618_LDO2DAC 0x4d
+#define RN5T618_LDO3DAC 0x4e
+#define RN5T618_LDO4DAC 0x4f
+#define RN5T618_LDO5DAC 0x50
+#define RN5T618_LDORTCDAC 0x56
+#define RN5T618_LDORTC2DAC 0x57
+#define RN5T618_LDO1DAC_SLP 0x58
+#define RN5T618_LDO2DAC_SLP 0x59
+#define RN5T618_LDO3DAC_SLP 0x5a
+#define RN5T618_LDO4DAC_SLP 0x5b
+#define RN5T618_LDO5DAC_SLP 0x5c
+#define RN5T618_ADCCNT1 0x64
+#define RN5T618_ADCCNT2 0x65
+#define RN5T618_ADCCNT3 0x66
+#define RN5T618_ILIMDATAH 0x68
+#define RN5T618_ILIMDATAL 0x69
+#define RN5T618_VBATDATAH 0x6a
+#define RN5T618_VBATDATAL 0x6b
+#define RN5T618_VADPDATAH 0x6c
+#define RN5T618_VADPDATAL 0x6d
+#define RN5T618_VUSBDATAH 0x6e
+#define RN5T618_VUSBDATAL 0x6f
+#define RN5T618_VSYSDATAH 0x70
+#define RN5T618_VSYSDATAL 0x71
+#define RN5T618_VTHMDATAH 0x72
+#define RN5T618_VTHMDATAL 0x73
+#define RN5T618_AIN1DATAH 0x74
+#define RN5T618_AIN1DATAL 0x75
+#define RN5T618_AIN0DATAH 0x76
+#define RN5T618_AIN0DATAL 0x77
+#define RN5T618_ILIMTHL 0x78
+#define RN5T618_ILIMTHH 0x79
+#define RN5T618_VBATTHL 0x7a
+#define RN5T618_VBATTHH 0x7b
+#define RN5T618_VADPTHL 0x7c
+#define RN5T618_VADPTHH 0x7d
+#define RN5T618_VUSBTHL 0x7e
+#define RN5T618_VUSBTHH 0x7f
+#define RN5T618_VSYSTHL 0x80
+#define RN5T618_VSYSTHH 0x81
+#define RN5T618_VTHMTHL 0x82
+#define RN5T618_VTHMTHH 0x83
+#define RN5T618_AIN1THL 0x84
+#define RN5T618_AIN1THH 0x85
+#define RN5T618_AIN0THL 0x86
+#define RN5T618_AIN0THH 0x87
+#define RN5T618_EN_ADCIR1 0x88
+#define RN5T618_EN_ADCIR2 0x89
+#define RN5T618_EN_ADCIR3 0x8a
+#define RN5T618_IR_ADC1 0x8c
+#define RN5T618_IR_ADC2 0x8d
+#define RN5T618_IR_ADC3 0x8e
+#define RN5T618_IOSEL 0x90
+#define RN5T618_IOOUT 0x91
+#define RN5T618_GPEDGE1 0x92
+#define RN5T618_GPEDGE2 0x93
+#define RN5T618_EN_GPIR 0x94
+#define RN5T618_IR_GPR 0x95
+#define RN5T618_IR_GPF 0x96
+#define RN5T618_MON_IOIN 0x97
+#define RN5T618_GPLED_FUNC 0x98
+#define RN5T618_INTPOL 0x9c
+#define RN5T618_INTEN 0x9d
+#define RN5T618_INTMON 0x9e
+#define RN5T618_PREVINDAC 0xb0
+#define RN5T618_BATDAC 0xb1
+#define RN5T618_CHGCTL1 0xb3
+#define RN5T618_CHGCTL2 0xb4
+#define RN5T618_VSYSSET 0xb5
+#define RN5T618_REGISET1 0xb6
+#define RN5T618_REGISET2 0xb7
+#define RN5T618_CHGISET 0xb8
+#define RN5T618_TIMSET 0xb9
+#define RN5T618_BATSET1 0xba
+#define RN5T618_BATSET2 0xbb
+#define RN5T618_DIESET 0xbc
+#define RN5T618_CHGSTATE 0xbd
+#define RN5T618_CHGCTRL_IRFMASK 0xbe
+#define RN5T618_CHGSTAT_IRFMASK1 0xbf
+#define RN5T618_CHGSTAT_IRFMASK2 0xc0
+#define RN5T618_CHGERR_IRFMASK 0xc1
+#define RN5T618_CHGCTRL_IRR 0xc2
+#define RN5T618_CHGSTAT_IRR1 0xc3
+#define RN5T618_CHGSTAT_IRR2 0xc4
+#define RN5T618_CHGERR_IRR 0xc5
+#define RN5T618_CHGCTRL_MONI 0xc6
+#define RN5T618_CHGSTAT_MONI1 0xc7
+#define RN5T618_CHGSTAT_MONI2 0xc8
+#define RN5T618_CHGERR_MONI 0xc9
+#define RN5T618_CHGCTRL_DETMOD1 0xca
+#define RN5T618_CHGCTRL_DETMOD2 0xcb
+#define RN5T618_CHGSTAT_DETMOD1 0xcc
+#define RN5T618_CHGSTAT_DETMOD2 0xcd
+#define RN5T618_CHGSTAT_DETMOD3 0xce
+#define RN5T618_CHGERR_DETMOD1 0xcf
+#define RN5T618_CHGERR_DETMOD2 0xd0
+#define RN5T618_CHGOSCCTL 0xd4
+#define RN5T618_CHGOSCSCORESET1 0xd5
+#define RN5T618_CHGOSCSCORESET2 0xd6
+#define RN5T618_CHGOSCSCORESET3 0xd7
+#define RN5T618_CHGOSCFREQSET1 0xd8
+#define RN5T618_CHGOSCFREQSET2 0xd9
+#define RN5T618_CONTROL 0xe0
+#define RN5T618_SOC 0xe1
+#define RN5T618_RE_CAP_H 0xe2
+#define RN5T618_RE_CAP_L 0xe3
+#define RN5T618_FA_CAP_H 0xe4
+#define RN5T618_FA_CAP_L 0xe5
+#define RN5T618_AGE 0xe6
+#define RN5T618_TT_EMPTY_H 0xe7
+#define RN5T618_TT_EMPTY_L 0xe8
+#define RN5T618_TT_FULL_H 0xe9
+#define RN5T618_TT_FULL_L 0xea
+#define RN5T618_VOLTAGE_1 0xeb
+#define RN5T618_VOLTAGE_0 0xec
+#define RN5T618_TEMP_1 0xed
+#define RN5T618_TEMP_0 0xee
+#define RN5T618_CC_CTRL 0xef
+#define RN5T618_CC_COUNT2 0xf0
+#define RN5T618_CC_COUNT1 0xf1
+#define RN5T618_CC_COUNT0 0xf2
+#define RN5T618_CC_SUMREG3 0xf3
+#define RN5T618_CC_SUMREG2 0xf4
+#define RN5T618_CC_SUMREG1 0xf5
+#define RN5T618_CC_SUMREG0 0xf6
+#define RN5T618_CC_OFFREG1 0xf7
+#define RN5T618_CC_OFFREG0 0xf8
+#define RN5T618_CC_GAINREG1 0xf9
+#define RN5T618_CC_GAINREG0 0xfa
+#define RN5T618_CC_AVEREG1 0xfb
+#define RN5T618_CC_AVEREG0 0xfc
+#define RN5T618_MAX_REG 0xfc
+
+#define RN5T618_REPCNT_REPWRON BIT(0)
+#define RN5T618_SLPCNT_SWPWROFF BIT(0)
+#define RN5T618_WATCHDOG_WDOGEN BIT(2)
+#define RN5T618_WATCHDOG_WDOGTIM_M (BIT(0) | BIT(1))
+#define RN5T618_WATCHDOG_WDOGTIM_S 0
+#define RN5T618_PWRIRQ_IR_WDOG BIT(6)
+
+enum {
+ RN5T618_DCDC1,
+ RN5T618_DCDC2,
+ RN5T618_DCDC3,
+ RN5T618_LDO1,
+ RN5T618_LDO2,
+ RN5T618_LDO3,
+ RN5T618_LDO4,
+ RN5T618_LDO5,
+ RN5T618_LDORTC1,
+ RN5T618_LDORTC2,
+ RN5T618_REG_NUM,
+};
+
+struct rn5t618 {
+ struct regmap *regmap;
+};
+
+#endif /* __LINUX_MFD_RN5T618_H */
--
1.7.10.4
--
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^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH v2 2/4] regulator: add driver for Ricoh RN5T618 regulators
2014-08-30 12:50 ` Beniamino Galvani
(?)
(?)
@ 2014-08-30 12:50 ` Beniamino Galvani
2014-08-30 13:11 ` Mark Brown
-1 siblings, 1 reply; 16+ messages in thread
From: Beniamino Galvani @ 2014-08-30 12:50 UTC (permalink / raw)
To: linux-kernel
Cc: Lee Jones, Samuel Ortiz, Mark Brown, Liam Girdwood,
Wim Van Sebroeck, Guenter Roeck, linux-watchdog, devicetree,
Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
Grant Likely, Carlo Caione, Beniamino Galvani
This driver supports the 3 DCDC and 7 LDO regulators available on
Ricoh RN5T618 PMIC.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
---
drivers/regulator/Kconfig | 6 ++
drivers/regulator/Makefile | 1 +
drivers/regulator/rn5t618-regulator.c | 143 +++++++++++++++++++++++++++++++++
3 files changed, 150 insertions(+)
create mode 100644 drivers/regulator/rn5t618-regulator.c
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index fb32bab..ac0e643 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -469,6 +469,12 @@ config REGULATOR_RK808
through regulator interface. The device supports multiple DCDC/LDO
outputs which can be controlled by i2c communication.
+config REGULATOR_RN5T618
+ tristate "Ricoh RN5T618 voltage regulators"
+ depends on MFD_RN5T618
+ help
+ Say y here to support the regulators found on Ricoh RN5T618 PMIC.
+
config REGULATOR_S2MPA01
tristate "Samsung S2MPA01 voltage regulator"
depends on MFD_SEC_CORE
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 236fdbb..3b767c6 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -63,6 +63,7 @@ obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o
obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o
obj-$(CONFIG_REGULATOR_RC5T583) += rc5t583-regulator.o
obj-$(CONFIG_REGULATOR_RK808) += rk808-regulator.o
+obj-$(CONFIG_REGULATOR_RN5T618) += rn5t618-regulator.o
obj-$(CONFIG_REGULATOR_S2MPA01) += s2mpa01.o
obj-$(CONFIG_REGULATOR_S2MPS11) += s2mps11.o
obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o
diff --git a/drivers/regulator/rn5t618-regulator.c b/drivers/regulator/rn5t618-regulator.c
new file mode 100644
index 0000000..e58d79a
--- /dev/null
+++ b/drivers/regulator/rn5t618-regulator.c
@@ -0,0 +1,143 @@
+/*
+ * 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, \
+ .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 struct of_regulator_match rn5t618_matches[] = {
+ [RN5T618_DCDC1] = { .name = "DCDC1" },
+ [RN5T618_DCDC2] = { .name = "DCDC2" },
+ [RN5T618_DCDC3] = { .name = "DCDC3" },
+ [RN5T618_LDO1] = { .name = "LDO1" },
+ [RN5T618_LDO2] = { .name = "LDO2" },
+ [RN5T618_LDO3] = { .name = "LDO3" },
+ [RN5T618_LDO4] = { .name = "LDO4" },
+ [RN5T618_LDO5] = { .name = "LDO5" },
+ [RN5T618_LDORTC1] = { .name = "LDORTC1" },
+ [RN5T618_LDORTC2] = { .name = "LDORTC2" },
+};
+
+static int rn5t618_regulator_parse_dt(struct platform_device *pdev)
+{
+ struct device_node *np, *regulators;
+ int ret;
+
+ np = of_node_get(pdev->dev.parent->of_node);
+ if (!np)
+ return 0;
+
+ regulators = of_get_child_by_name(np, "regulators");
+ if (!regulators) {
+ dev_err(&pdev->dev, "regulators node not found\n");
+ return -EINVAL;
+ }
+
+ ret = of_regulator_match(&pdev->dev, regulators, rn5t618_matches,
+ ARRAY_SIZE(rn5t618_matches));
+ of_node_put(regulators);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "error parsing regulator init data: %d\n",
+ ret);
+ }
+
+ return 0;
+}
+
+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 ret, i;
+
+ ret = rn5t618_regulator_parse_dt(pdev);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < RN5T618_REG_NUM; i++) {
+ config.dev = &pdev->dev;
+ config.init_data = rn5t618_matches[i].init_data;
+ config.of_node = rn5t618_matches[i].of_node;
+ 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");
--
1.7.10.4
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH v2 3/4] watchdog: add driver for Ricoh RN5T618 watchdog
2014-08-30 12:50 ` Beniamino Galvani
` (2 preceding siblings ...)
(?)
@ 2014-08-30 12:50 ` Beniamino Galvani
2014-08-31 17:51 ` Guenter Roeck
-1 siblings, 1 reply; 16+ messages in thread
From: Beniamino Galvani @ 2014-08-30 12:50 UTC (permalink / raw)
To: linux-kernel
Cc: Lee Jones, Samuel Ortiz, Mark Brown, Liam Girdwood,
Wim Van Sebroeck, Guenter Roeck, linux-watchdog, devicetree,
Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
Grant Likely, Carlo Caione, Beniamino Galvani
This adds a driver for the watchdog timer available in Ricoh RN5T618
PMIC. The device supports a programmable expiration time of 1, 8, 32
or 128 seconds.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
---
drivers/watchdog/Kconfig | 11 +++
drivers/watchdog/Makefile | 1 +
drivers/watchdog/rn5t618_wdt.c | 198 ++++++++++++++++++++++++++++++++++++++++
3 files changed, 210 insertions(+)
create mode 100644 drivers/watchdog/rn5t618_wdt.c
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index f57312f..9eba6af 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -309,6 +309,17 @@ config ORION_WATCHDOG
To compile this driver as a module, choose M here: the
module will be called orion_wdt.
+config RN5T618_WATCHDOG
+ tristate "Ricoh RN5T618 watchdog"
+ depends on MFD_RN5T618
+ select WATCHDOG_CORE
+ help
+ If you say yes here you get support for watchdog on the Ricoh
+ RN5T618 PMIC.
+
+ This driver can also be built as a module. If so, the module
+ will be called rn5t618_wdt.
+
config SUNXI_WATCHDOG
tristate "Allwinner SoCs watchdog support"
depends on ARCH_SUNXI
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 468c320..0afa343 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -47,6 +47,7 @@ obj-$(CONFIG_IOP_WATCHDOG) += iop_wdt.o
obj-$(CONFIG_DAVINCI_WATCHDOG) += davinci_wdt.o
obj-$(CONFIG_ORION_WATCHDOG) += orion_wdt.o
obj-$(CONFIG_SUNXI_WATCHDOG) += sunxi_wdt.o
+obj-$(CONFIG_RN5T618_WATCHDOG) += rn5t618_wdt.o
obj-$(CONFIG_COH901327_WATCHDOG) += coh901327_wdt.o
obj-$(CONFIG_STMP3XXX_RTC_WATCHDOG) += stmp3xxx_rtc_wdt.o
obj-$(CONFIG_NUC900_WATCHDOG) += nuc900_wdt.o
diff --git a/drivers/watchdog/rn5t618_wdt.c b/drivers/watchdog/rn5t618_wdt.c
new file mode 100644
index 0000000..b6d62ac
--- /dev/null
+++ b/drivers/watchdog/rn5t618_wdt.c
@@ -0,0 +1,198 @@
+/*
+ * Watchdog 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/device.h>
+#include <linux/mfd/rn5t618.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/watchdog.h>
+
+#define DRIVER_NAME "rn5t618-wdt"
+
+static bool nowayout = WATCHDOG_NOWAYOUT;
+static unsigned int heartbeat;
+
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat, "Initial watchdog heartbeat in seconds");
+
+module_param(nowayout, bool, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
+ __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+struct rn5t618_wdt {
+ struct watchdog_device wdt_dev;
+ struct rn5t618 *rn5t618;
+};
+
+/*
+ * This array encodes the values of WDOGTIM field for the supported
+ * watchdog expiration times. If the watchdog is not accessed before
+ * the timer expiration, the PMU generates an interrupt and if the CPU
+ * doesn't clear it within one second the system is restarted.
+ */
+static const struct {
+ u8 reg_val;
+ unsigned int time;
+} rn5t618_wdt_map[] = {
+ { 0, 1 },
+ { 1, 8 },
+ { 2, 32 },
+ { 3, 128 },
+};
+
+static int rn5t618_wdt_set_timeout(struct watchdog_device *wdt_dev,
+ unsigned int timeout)
+{
+ struct rn5t618_wdt *wdt = watchdog_get_drvdata(wdt_dev);
+ int ret, i;
+
+ for (i = 0; i < ARRAY_SIZE(rn5t618_wdt_map); i++) {
+ if (rn5t618_wdt_map[i].time + 1 >= timeout)
+ break;
+ }
+
+ if (i == ARRAY_SIZE(rn5t618_wdt_map))
+ return -EINVAL;
+
+ ret = regmap_update_bits(wdt->rn5t618->regmap, RN5T618_WATCHDOG,
+ RN5T618_WATCHDOG_WDOGTIM_M,
+ rn5t618_wdt_map[i].reg_val);
+ if (!ret)
+ wdt_dev->timeout = rn5t618_wdt_map[i].time;
+
+ return ret;
+}
+
+static int rn5t618_wdt_start(struct watchdog_device *wdt_dev)
+{
+ struct rn5t618_wdt *wdt = watchdog_get_drvdata(wdt_dev);
+ int ret;
+
+ ret = rn5t618_wdt_set_timeout(wdt_dev, wdt_dev->timeout);
+ if (ret)
+ return ret;
+
+ /* enable repower-on */
+ ret = regmap_update_bits(wdt->rn5t618->regmap, RN5T618_REPCNT,
+ RN5T618_REPCNT_REPWRON,
+ RN5T618_REPCNT_REPWRON);
+ if (ret)
+ return ret;
+
+ /* enable watchdog */
+ ret = regmap_update_bits(wdt->rn5t618->regmap, RN5T618_WATCHDOG,
+ RN5T618_WATCHDOG_WDOGEN,
+ RN5T618_WATCHDOG_WDOGEN);
+ if (ret)
+ return ret;
+
+ /* enable watchdog interrupt */
+ return regmap_update_bits(wdt->rn5t618->regmap, RN5T618_PWRIREN,
+ RN5T618_PWRIRQ_IR_WDOG,
+ RN5T618_PWRIRQ_IR_WDOG);
+}
+
+static int rn5t618_wdt_stop(struct watchdog_device *wdt_dev)
+{
+ struct rn5t618_wdt *wdt = watchdog_get_drvdata(wdt_dev);
+
+ return regmap_update_bits(wdt->rn5t618->regmap, RN5T618_WATCHDOG,
+ RN5T618_WATCHDOG_WDOGEN, 0);
+}
+
+static int rn5t618_wdt_ping(struct watchdog_device *wdt_dev)
+{
+ struct rn5t618_wdt *wdt = watchdog_get_drvdata(wdt_dev);
+ unsigned int val;
+ int ret;
+
+ /* The counter is restarted after a R/W access to watchdog register */
+ ret = regmap_read(wdt->rn5t618->regmap, RN5T618_WATCHDOG, &val);
+ if (ret)
+ return ret;
+
+ ret = regmap_write(wdt->rn5t618->regmap, RN5T618_WATCHDOG, val);
+ if (ret)
+ return ret;
+
+ /* Clear pending watchdog interrupt */
+ return regmap_update_bits(wdt->rn5t618->regmap, RN5T618_PWRIRQ,
+ RN5T618_PWRIRQ_IR_WDOG, 0);
+}
+
+static struct watchdog_info rn5t618_wdt_info = {
+ .options = WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE |
+ WDIOF_KEEPALIVEPING,
+ .identity = DRIVER_NAME,
+};
+
+static struct watchdog_ops rn5t618_wdt_ops = {
+ .owner = THIS_MODULE,
+ .start = rn5t618_wdt_start,
+ .stop = rn5t618_wdt_stop,
+ .ping = rn5t618_wdt_ping,
+ .set_timeout = rn5t618_wdt_set_timeout,
+};
+
+static int rn5t618_wdt_probe(struct platform_device *pdev)
+{
+ struct rn5t618 *rn5t618 = dev_get_drvdata(pdev->dev.parent);
+ struct rn5t618_wdt *wdt;
+ int min_timeout, max_timeout;
+
+ wdt = devm_kzalloc(&pdev->dev, sizeof(struct rn5t618_wdt), GFP_KERNEL);
+ if (!wdt)
+ return -ENOMEM;
+
+ min_timeout = rn5t618_wdt_map[0].time;
+ max_timeout = rn5t618_wdt_map[ARRAY_SIZE(rn5t618_wdt_map) - 1].time;
+
+ wdt->rn5t618 = rn5t618;
+ wdt->wdt_dev.info = &rn5t618_wdt_info;
+ wdt->wdt_dev.ops = &rn5t618_wdt_ops;
+ wdt->wdt_dev.min_timeout = min_timeout;
+ wdt->wdt_dev.max_timeout = max_timeout;
+ wdt->wdt_dev.timeout = max_timeout;
+ wdt->wdt_dev.parent = &pdev->dev;
+
+ watchdog_set_drvdata(&wdt->wdt_dev, wdt);
+ watchdog_init_timeout(&wdt->wdt_dev, heartbeat, &pdev->dev);
+ watchdog_set_nowayout(&wdt->wdt_dev, nowayout);
+
+ platform_set_drvdata(pdev, wdt);
+
+ return watchdog_register_device(&wdt->wdt_dev);
+}
+
+static int rn5t618_wdt_remove(struct platform_device *pdev)
+{
+ struct rn5t618_wdt *wdt = platform_get_drvdata(pdev);
+
+ watchdog_unregister_device(&wdt->wdt_dev);
+
+ return 0;
+}
+
+static struct platform_driver rn5t618_wdt_driver = {
+ .probe = rn5t618_wdt_probe,
+ .remove = rn5t618_wdt_remove,
+ .driver = {
+ .name = DRIVER_NAME,
+ },
+};
+
+module_platform_driver(rn5t618_wdt_driver);
+
+MODULE_AUTHOR("Beniamino Galvani <b.galvani@gmail.com>");
+MODULE_DESCRIPTION("RN5T618 watchdog driver");
+MODULE_LICENSE("GPL v2");
--
1.7.10.4
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [PATCH v2 4/4] mfd: rn5t618: document device tree bindings
2014-08-30 12:50 ` Beniamino Galvani
` (3 preceding siblings ...)
(?)
@ 2014-08-30 12:50 ` Beniamino Galvani
2014-09-01 8:27 ` Lee Jones
-1 siblings, 1 reply; 16+ messages in thread
From: Beniamino Galvani @ 2014-08-30 12:50 UTC (permalink / raw)
To: linux-kernel
Cc: Lee Jones, Samuel Ortiz, Mark Brown, Liam Girdwood,
Wim Van Sebroeck, Guenter Roeck, linux-watchdog, devicetree,
Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
Grant Likely, Carlo Caione, Beniamino Galvani
This adds the device tree bindings documentation for Ricoh RN5T618.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Mark Brown <broonie@linaro.org>
---
Documentation/devicetree/bindings/mfd/rn5t618.txt | 36 +++++++++++++++++++++
1 file changed, 36 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/rn5t618.txt
diff --git a/Documentation/devicetree/bindings/mfd/rn5t618.txt b/Documentation/devicetree/bindings/mfd/rn5t618.txt
new file mode 100644
index 0000000..937785a
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/rn5t618.txt
@@ -0,0 +1,36 @@
+* Ricoh RN5T618 PMIC
+
+Ricoh RN5T618 is a power management IC which integrates 3 step-down
+DCDC converters, 7 low-dropout regulators, a Li-ion battery charger,
+fuel gauge, ADC, GPIOs and a watchdog timer. It can be controlled
+through a I2C interface.
+
+Required properties:
+ - compatible: should be "ricoh,rn5t618"
+ - reg: the I2C slave address of the device
+
+Sub-nodes:
+ - regulators: the node is required if the regulator functionality is
+ needed. The valid regulator names are: DCDC1, DCDC2, DCDC3, LDO1,
+ LDO2, LDO3, LDO4, LDO5, LDORTC1 and LDORTC2.
+ The common bindings for each individual regulator can be found in:
+ Documentation/devicetree/bindings/regulator/regulator.txt
+
+Example:
+
+ pmic@32 {
+ compatible = "ricoh,rn5t618";
+ reg = <0x32>;
+
+ regulators {
+ DCDC1 {
+ regulator-min-microvolt = <1050000>;
+ regulator-max-microvolt = <1050000>;
+ };
+
+ DCDC2 {
+ regulator-min-microvolt = <1175000>;
+ regulator-max-microvolt = <1175000>;
+ };
+ };
+ };
--
1.7.10.4
^ permalink raw reply related [flat|nested] 16+ messages in thread
* Re: [PATCH v2 2/4] regulator: add driver for Ricoh RN5T618 regulators
2014-08-30 12:50 ` [PATCH v2 2/4] regulator: add driver for Ricoh RN5T618 regulators Beniamino Galvani
@ 2014-08-30 13:11 ` Mark Brown
0 siblings, 0 replies; 16+ messages in thread
From: Mark Brown @ 2014-08-30 13:11 UTC (permalink / raw)
To: Beniamino Galvani
Cc: linux-kernel, Lee Jones, Samuel Ortiz, Liam Girdwood,
Wim Van Sebroeck, Guenter Roeck, linux-watchdog, devicetree,
Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
Grant Likely, Carlo Caione
[-- Attachment #1: Type: text/plain, Size: 175 bytes --]
On Sat, Aug 30, 2014 at 02:50:24PM +0200, Beniamino Galvani wrote:
> This driver supports the 3 DCDC and 7 LDO regulators available on
> Ricoh RN5T618 PMIC.
Applied, thanks.
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH v2 3/4] watchdog: add driver for Ricoh RN5T618 watchdog
2014-08-30 12:50 ` [PATCH v2 3/4] watchdog: add driver for Ricoh RN5T618 watchdog Beniamino Galvani
@ 2014-08-31 17:51 ` Guenter Roeck
0 siblings, 0 replies; 16+ messages in thread
From: Guenter Roeck @ 2014-08-31 17:51 UTC (permalink / raw)
To: Beniamino Galvani, linux-kernel
Cc: Lee Jones, Samuel Ortiz, Mark Brown, Liam Girdwood,
Wim Van Sebroeck, linux-watchdog, devicetree, Rob Herring,
Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala, Grant Likely,
Carlo Caione
On 08/30/2014 05:50 AM, Beniamino Galvani wrote:
> This adds a driver for the watchdog timer available in Ricoh RN5T618
> PMIC. The device supports a programmable expiration time of 1, 8, 32
> or 128 seconds.
>
> Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
> ---
> drivers/watchdog/Kconfig | 11 +++
> drivers/watchdog/Makefile | 1 +
> drivers/watchdog/rn5t618_wdt.c | 198 ++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 210 insertions(+)
> create mode 100644 drivers/watchdog/rn5t618_wdt.c
>
> diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
> index f57312f..9eba6af 100644
> --- a/drivers/watchdog/Kconfig
> +++ b/drivers/watchdog/Kconfig
> @@ -309,6 +309,17 @@ config ORION_WATCHDOG
> To compile this driver as a module, choose M here: the
> module will be called orion_wdt.
>
> +config RN5T618_WATCHDOG
> + tristate "Ricoh RN5T618 watchdog"
> + depends on MFD_RN5T618
> + select WATCHDOG_CORE
> + help
> + If you say yes here you get support for watchdog on the Ricoh
> + RN5T618 PMIC.
> +
> + This driver can also be built as a module. If so, the module
> + will be called rn5t618_wdt.
> +
> config SUNXI_WATCHDOG
> tristate "Allwinner SoCs watchdog support"
> depends on ARCH_SUNXI
> diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
> index 468c320..0afa343 100644
> --- a/drivers/watchdog/Makefile
> +++ b/drivers/watchdog/Makefile
> @@ -47,6 +47,7 @@ obj-$(CONFIG_IOP_WATCHDOG) += iop_wdt.o
> obj-$(CONFIG_DAVINCI_WATCHDOG) += davinci_wdt.o
> obj-$(CONFIG_ORION_WATCHDOG) += orion_wdt.o
> obj-$(CONFIG_SUNXI_WATCHDOG) += sunxi_wdt.o
> +obj-$(CONFIG_RN5T618_WATCHDOG) += rn5t618_wdt.o
> obj-$(CONFIG_COH901327_WATCHDOG) += coh901327_wdt.o
> obj-$(CONFIG_STMP3XXX_RTC_WATCHDOG) += stmp3xxx_rtc_wdt.o
> obj-$(CONFIG_NUC900_WATCHDOG) += nuc900_wdt.o
> diff --git a/drivers/watchdog/rn5t618_wdt.c b/drivers/watchdog/rn5t618_wdt.c
> new file mode 100644
> index 0000000..b6d62ac
> --- /dev/null
> +++ b/drivers/watchdog/rn5t618_wdt.c
> @@ -0,0 +1,198 @@
> +/*
> + * Watchdog 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/device.h>
> +#include <linux/mfd/rn5t618.h>
> +#include <linux/module.h>
> +#include <linux/platform_device.h>
> +#include <linux/watchdog.h>
> +
> +#define DRIVER_NAME "rn5t618-wdt"
> +
> +static bool nowayout = WATCHDOG_NOWAYOUT;
> +static unsigned int heartbeat;
> +
> +module_param(heartbeat, int, 0);
> +MODULE_PARM_DESC(heartbeat, "Initial watchdog heartbeat in seconds");
> +
> +module_param(nowayout, bool, 0);
> +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
> + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
> +
> +struct rn5t618_wdt {
> + struct watchdog_device wdt_dev;
> + struct rn5t618 *rn5t618;
> +};
> +
> +/*
> + * This array encodes the values of WDOGTIM field for the supported
> + * watchdog expiration times. If the watchdog is not accessed before
> + * the timer expiration, the PMU generates an interrupt and if the CPU
> + * doesn't clear it within one second the system is restarted.
> + */
> +static const struct {
> + u8 reg_val;
> + unsigned int time;
> +} rn5t618_wdt_map[] = {
> + { 0, 1 },
> + { 1, 8 },
> + { 2, 32 },
> + { 3, 128 },
> +};
> +
> +static int rn5t618_wdt_set_timeout(struct watchdog_device *wdt_dev,
> + unsigned int timeout)
> +{
> + struct rn5t618_wdt *wdt = watchdog_get_drvdata(wdt_dev);
> + int ret, i;
> +
> + for (i = 0; i < ARRAY_SIZE(rn5t618_wdt_map); i++) {
> + if (rn5t618_wdt_map[i].time + 1 >= timeout)
> + break;
> + }
> +
> + if (i == ARRAY_SIZE(rn5t618_wdt_map))
> + return -EINVAL;
> +
> + ret = regmap_update_bits(wdt->rn5t618->regmap, RN5T618_WATCHDOG,
> + RN5T618_WATCHDOG_WDOGTIM_M,
> + rn5t618_wdt_map[i].reg_val);
> + if (!ret)
> + wdt_dev->timeout = rn5t618_wdt_map[i].time;
> +
> + return ret;
> +}
> +
> +static int rn5t618_wdt_start(struct watchdog_device *wdt_dev)
> +{
> + struct rn5t618_wdt *wdt = watchdog_get_drvdata(wdt_dev);
> + int ret;
> +
> + ret = rn5t618_wdt_set_timeout(wdt_dev, wdt_dev->timeout);
> + if (ret)
> + return ret;
> +
> + /* enable repower-on */
> + ret = regmap_update_bits(wdt->rn5t618->regmap, RN5T618_REPCNT,
> + RN5T618_REPCNT_REPWRON,
> + RN5T618_REPCNT_REPWRON);
> + if (ret)
> + return ret;
> +
> + /* enable watchdog */
> + ret = regmap_update_bits(wdt->rn5t618->regmap, RN5T618_WATCHDOG,
> + RN5T618_WATCHDOG_WDOGEN,
> + RN5T618_WATCHDOG_WDOGEN);
> + if (ret)
> + return ret;
> +
> + /* enable watchdog interrupt */
> + return regmap_update_bits(wdt->rn5t618->regmap, RN5T618_PWRIREN,
> + RN5T618_PWRIRQ_IR_WDOG,
> + RN5T618_PWRIRQ_IR_WDOG);
> +}
> +
> +static int rn5t618_wdt_stop(struct watchdog_device *wdt_dev)
> +{
> + struct rn5t618_wdt *wdt = watchdog_get_drvdata(wdt_dev);
> +
> + return regmap_update_bits(wdt->rn5t618->regmap, RN5T618_WATCHDOG,
> + RN5T618_WATCHDOG_WDOGEN, 0);
> +}
> +
> +static int rn5t618_wdt_ping(struct watchdog_device *wdt_dev)
> +{
> + struct rn5t618_wdt *wdt = watchdog_get_drvdata(wdt_dev);
> + unsigned int val;
> + int ret;
> +
> + /* The counter is restarted after a R/W access to watchdog register */
> + ret = regmap_read(wdt->rn5t618->regmap, RN5T618_WATCHDOG, &val);
> + if (ret)
> + return ret;
> +
> + ret = regmap_write(wdt->rn5t618->regmap, RN5T618_WATCHDOG, val);
> + if (ret)
> + return ret;
> +
> + /* Clear pending watchdog interrupt */
> + return regmap_update_bits(wdt->rn5t618->regmap, RN5T618_PWRIRQ,
> + RN5T618_PWRIRQ_IR_WDOG, 0);
> +}
> +
> +static struct watchdog_info rn5t618_wdt_info = {
> + .options = WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE |
> + WDIOF_KEEPALIVEPING,
> + .identity = DRIVER_NAME,
> +};
> +
> +static struct watchdog_ops rn5t618_wdt_ops = {
> + .owner = THIS_MODULE,
> + .start = rn5t618_wdt_start,
> + .stop = rn5t618_wdt_stop,
> + .ping = rn5t618_wdt_ping,
> + .set_timeout = rn5t618_wdt_set_timeout,
> +};
> +
> +static int rn5t618_wdt_probe(struct platform_device *pdev)
> +{
> + struct rn5t618 *rn5t618 = dev_get_drvdata(pdev->dev.parent);
> + struct rn5t618_wdt *wdt;
> + int min_timeout, max_timeout;
> +
> + wdt = devm_kzalloc(&pdev->dev, sizeof(struct rn5t618_wdt), GFP_KERNEL);
> + if (!wdt)
> + return -ENOMEM;
> +
> + min_timeout = rn5t618_wdt_map[0].time;
> + max_timeout = rn5t618_wdt_map[ARRAY_SIZE(rn5t618_wdt_map) - 1].time;
> +
> + wdt->rn5t618 = rn5t618;
> + wdt->wdt_dev.info = &rn5t618_wdt_info;
> + wdt->wdt_dev.ops = &rn5t618_wdt_ops;
> + wdt->wdt_dev.min_timeout = min_timeout;
> + wdt->wdt_dev.max_timeout = max_timeout;
> + wdt->wdt_dev.timeout = max_timeout;
> + wdt->wdt_dev.parent = &pdev->dev;
> +
> + watchdog_set_drvdata(&wdt->wdt_dev, wdt);
> + watchdog_init_timeout(&wdt->wdt_dev, heartbeat, &pdev->dev);
> + watchdog_set_nowayout(&wdt->wdt_dev, nowayout);
> +
> + platform_set_drvdata(pdev, wdt);
> +
> + return watchdog_register_device(&wdt->wdt_dev);
> +}
> +
> +static int rn5t618_wdt_remove(struct platform_device *pdev)
> +{
> + struct rn5t618_wdt *wdt = platform_get_drvdata(pdev);
> +
> + watchdog_unregister_device(&wdt->wdt_dev);
> +
> + return 0;
> +}
> +
> +static struct platform_driver rn5t618_wdt_driver = {
> + .probe = rn5t618_wdt_probe,
> + .remove = rn5t618_wdt_remove,
> + .driver = {
> + .name = DRIVER_NAME,
> + },
> +};
> +
> +module_platform_driver(rn5t618_wdt_driver);
> +
> +MODULE_AUTHOR("Beniamino Galvani <b.galvani@gmail.com>");
> +MODULE_DESCRIPTION("RN5T618 watchdog driver");
> +MODULE_LICENSE("GPL v2");
>
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH v2 1/4] mfd: Add Ricoh RN5T618 PMIC core driver
@ 2014-09-01 8:25 ` Lee Jones
0 siblings, 0 replies; 16+ messages in thread
From: Lee Jones @ 2014-09-01 8:25 UTC (permalink / raw)
To: Beniamino Galvani
Cc: linux-kernel, Samuel Ortiz, Mark Brown, Liam Girdwood,
Wim Van Sebroeck, Guenter Roeck, linux-watchdog, devicetree,
Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
Grant Likely, Carlo Caione
On Sat, 30 Aug 2014, Beniamino Galvani wrote:
> Ricoh RN5T618 is a power management IC which integrates 3 step-down
> DCDC converters, 7 low-dropout regulators, a Li-ion battery charger,
> fuel gauge, ADC, GPIOs and a watchdog timer.
>
> This commit adds a MFD core driver to support the I2C communication
> with the device.
>
> Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
> ---
> drivers/mfd/Kconfig | 11 +++
> drivers/mfd/Makefile | 1 +
> drivers/mfd/rn5t618.c | 134 +++++++++++++++++++++++++
> include/linux/mfd/rn5t618.h | 228 +++++++++++++++++++++++++++++++++++++++++++
> 4 files changed, 374 insertions(+)
> create mode 100644 drivers/mfd/rn5t618.c
> create mode 100644 include/linux/mfd/rn5t618.h
Applied thanks.
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 8d5fad2..843da5d 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -582,6 +582,17 @@ config MFD_RC5T583
> Additional drivers must be enabled in order to use the
> different functionality of the device.
>
> +config MFD_RN5T618
> + tristate "Ricoh RN5T5618 PMIC"
> + depends on I2C
> + select MFD_CORE
> + select REGMAP_I2C
> + help
> + Say yes here to add support for the Ricoh RN5T618 PMIC. This
> + driver provides common support for accessing the device,
> + additional drivers must be enabled in order to use the
> + functionality of the device.
> +
> config MFD_SEC_CORE
> bool "SAMSUNG Electronics PMIC Series Support"
> depends on I2C=y
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index f001487..b945899 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -160,6 +160,7 @@ obj-$(CONFIG_MFD_INTEL_MSIC) += intel_msic.o
> obj-$(CONFIG_MFD_PALMAS) += palmas.o
> obj-$(CONFIG_MFD_VIPERBOARD) += viperboard.o
> obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o
> +obj-$(CONFIG_MFD_RN5T618) += rn5t618.o
> obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o
> obj-$(CONFIG_MFD_SYSCON) += syscon.o
> obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o
> diff --git a/drivers/mfd/rn5t618.c b/drivers/mfd/rn5t618.c
> new file mode 100644
> index 0000000..6668571
> --- /dev/null
> +++ b/drivers/mfd/rn5t618.c
> @@ -0,0 +1,134 @@
> +/*
> + * MFD core 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/i2c.h>
> +#include <linux/mfd/core.h>
> +#include <linux/mfd/rn5t618.h>
> +#include <linux/module.h>
> +#include <linux/regmap.h>
> +
> +static const struct mfd_cell rn5t618_cells[] = {
> + { .name = "rn5t618-regulator" },
> + { .name = "rn5t618-wdt" },
> +};
> +
> +static bool rn5t618_volatile_reg(struct device *dev, unsigned int reg)
> +{
> + switch (reg) {
> + case RN5T618_WATCHDOGCNT:
> + case RN5T618_DCIRQ:
> + case RN5T618_ILIMDATAH ... RN5T618_AIN0DATAL:
> + case RN5T618_IR_ADC1 ... RN5T618_IR_ADC3:
> + case RN5T618_IR_GPR:
> + case RN5T618_IR_GPF:
> + case RN5T618_MON_IOIN:
> + case RN5T618_INTMON:
> + return true;
> + default:
> + return false;
> + }
> +}
> +
> +static const struct regmap_config rn5t618_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + .volatile_reg = rn5t618_volatile_reg,
> + .max_register = RN5T618_MAX_REG,
> + .cache_type = REGCACHE_RBTREE,
> +};
> +
> +static struct rn5t618 *rn5t618_pm_power_off;
> +
> +static void rn5t618_power_off(void)
> +{
> + /* disable automatic repower-on */
> + regmap_update_bits(rn5t618_pm_power_off->regmap, RN5T618_REPCNT,
> + RN5T618_REPCNT_REPWRON, 0);
> + /* start power-off sequence */
> + regmap_update_bits(rn5t618_pm_power_off->regmap, RN5T618_SLPCNT,
> + RN5T618_SLPCNT_SWPWROFF, RN5T618_SLPCNT_SWPWROFF);
> +}
> +
> +static int rn5t618_i2c_probe(struct i2c_client *i2c,
> + const struct i2c_device_id *id)
> +{
> + struct rn5t618 *priv;
> + int ret;
> +
> + priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
> + if (!priv)
> + return -ENOMEM;
> +
> + i2c_set_clientdata(i2c, priv);
> +
> + priv->regmap = devm_regmap_init_i2c(i2c, &rn5t618_regmap_config);
> + if (IS_ERR(priv->regmap)) {
> + ret = PTR_ERR(priv->regmap);
> + dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
> + return ret;
> + }
> +
> + ret = mfd_add_devices(&i2c->dev, -1, rn5t618_cells,
> + ARRAY_SIZE(rn5t618_cells), NULL, 0, NULL);
> + if (ret) {
> + dev_err(&i2c->dev, "failed to add sub-devices: %d\n", ret);
> + return ret;
> + }
> +
> + if (!pm_power_off) {
> + rn5t618_pm_power_off = priv;
> + pm_power_off = rn5t618_power_off;
> + }
> +
> + return 0;
> +}
> +
> +static int rn5t618_i2c_remove(struct i2c_client *i2c)
> +{
> + struct rn5t618 *priv = i2c_get_clientdata(i2c);
> +
> + if (priv == rn5t618_pm_power_off) {
> + rn5t618_pm_power_off = NULL;
> + pm_power_off = NULL;
> + }
> +
> + mfd_remove_devices(&i2c->dev);
> + return 0;
> +}
> +
> +static const struct of_device_id rn5t618_of_match[] = {
> + { .compatible = "ricoh,rn5t618" },
> + { }
> +};
> +MODULE_DEVICE_TABLE(of, rn5t618_of_match);
> +
> +static const struct i2c_device_id rn5t618_i2c_id[] = {
> + { }
> +};
> +MODULE_DEVICE_TABLE(i2c, rn5t618_i2c_id);
> +
> +static struct i2c_driver rn5t618_i2c_driver = {
> + .driver = {
> + .name = "rn5t618",
> + .of_match_table = of_match_ptr(rn5t618_of_match),
> + },
> + .probe = rn5t618_i2c_probe,
> + .remove = rn5t618_i2c_remove,
> + .id_table = rn5t618_i2c_id,
> +};
> +
> +module_i2c_driver(rn5t618_i2c_driver);
> +
> +MODULE_AUTHOR("Beniamino Galvani <b.galvani@gmail.com>");
> +MODULE_DESCRIPTION("Ricoh RN5T618 MFD driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/include/linux/mfd/rn5t618.h b/include/linux/mfd/rn5t618.h
> new file mode 100644
> index 0000000..c72d534
> --- /dev/null
> +++ b/include/linux/mfd/rn5t618.h
> @@ -0,0 +1,228 @@
> +/*
> + * MFD core 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/>.
> + */
> +
> +#ifndef __LINUX_MFD_RN5T618_H
> +#define __LINUX_MFD_RN5T618_H
> +
> +#include <linux/regmap.h>
> +
> +#define RN5T618_LSIVER 0x00
> +#define RN5T618_OTPVER 0x01
> +#define RN5T618_IODAC 0x02
> +#define RN5T618_VINDAC 0x03
> +#define RN5T618_CPUCNT 0x06
> +#define RN5T618_PSWR 0x07
> +#define RN5T618_PONHIS 0x09
> +#define RN5T618_POFFHIS 0x0a
> +#define RN5T618_WATCHDOG 0x0b
> +#define RN5T618_WATCHDOGCNT 0x0c
> +#define RN5T618_PWRFUNC 0x0d
> +#define RN5T618_SLPCNT 0x0e
> +#define RN5T618_REPCNT 0x0f
> +#define RN5T618_PWRONTIMSET 0x10
> +#define RN5T618_NOETIMSETCNT 0x11
> +#define RN5T618_PWRIREN 0x12
> +#define RN5T618_PWRIRQ 0x13
> +#define RN5T618_PWRMON 0x14
> +#define RN5T618_PWRIRSEL 0x15
> +#define RN5T618_DC1_SLOT 0x16
> +#define RN5T618_DC2_SLOT 0x17
> +#define RN5T618_DC3_SLOT 0x18
> +#define RN5T618_LDO1_SLOT 0x1b
> +#define RN5T618_LDO2_SLOT 0x1c
> +#define RN5T618_LDO3_SLOT 0x1d
> +#define RN5T618_LDO4_SLOT 0x1e
> +#define RN5T618_LDO5_SLOT 0x1f
> +#define RN5T618_PSO0_SLOT 0x25
> +#define RN5T618_PSO1_SLOT 0x26
> +#define RN5T618_PSO2_SLOT 0x27
> +#define RN5T618_PSO3_SLOT 0x28
> +#define RN5T618_LDORTC1_SLOT 0x2a
> +#define RN5T618_DC1CTL 0x2c
> +#define RN5T618_DC1CTL2 0x2d
> +#define RN5T618_DC2CTL 0x2e
> +#define RN5T618_DC2CTL2 0x2f
> +#define RN5T618_DC3CTL 0x30
> +#define RN5T618_DC3CTL2 0x31
> +#define RN5T618_DC1DAC 0x36
> +#define RN5T618_DC2DAC 0x37
> +#define RN5T618_DC3DAC 0x38
> +#define RN5T618_DC1DAC_SLP 0x3b
> +#define RN5T618_DC2DAC_SLP 0x3c
> +#define RN5T618_DC3DAC_SLP 0x3d
> +#define RN5T618_DCIREN 0x40
> +#define RN5T618_DCIRQ 0x41
> +#define RN5T618_DCIRMON 0x42
> +#define RN5T618_LDOEN1 0x44
> +#define RN5T618_LDOEN2 0x45
> +#define RN5T618_LDODIS 0x46
> +#define RN5T618_LDO1DAC 0x4c
> +#define RN5T618_LDO2DAC 0x4d
> +#define RN5T618_LDO3DAC 0x4e
> +#define RN5T618_LDO4DAC 0x4f
> +#define RN5T618_LDO5DAC 0x50
> +#define RN5T618_LDORTCDAC 0x56
> +#define RN5T618_LDORTC2DAC 0x57
> +#define RN5T618_LDO1DAC_SLP 0x58
> +#define RN5T618_LDO2DAC_SLP 0x59
> +#define RN5T618_LDO3DAC_SLP 0x5a
> +#define RN5T618_LDO4DAC_SLP 0x5b
> +#define RN5T618_LDO5DAC_SLP 0x5c
> +#define RN5T618_ADCCNT1 0x64
> +#define RN5T618_ADCCNT2 0x65
> +#define RN5T618_ADCCNT3 0x66
> +#define RN5T618_ILIMDATAH 0x68
> +#define RN5T618_ILIMDATAL 0x69
> +#define RN5T618_VBATDATAH 0x6a
> +#define RN5T618_VBATDATAL 0x6b
> +#define RN5T618_VADPDATAH 0x6c
> +#define RN5T618_VADPDATAL 0x6d
> +#define RN5T618_VUSBDATAH 0x6e
> +#define RN5T618_VUSBDATAL 0x6f
> +#define RN5T618_VSYSDATAH 0x70
> +#define RN5T618_VSYSDATAL 0x71
> +#define RN5T618_VTHMDATAH 0x72
> +#define RN5T618_VTHMDATAL 0x73
> +#define RN5T618_AIN1DATAH 0x74
> +#define RN5T618_AIN1DATAL 0x75
> +#define RN5T618_AIN0DATAH 0x76
> +#define RN5T618_AIN0DATAL 0x77
> +#define RN5T618_ILIMTHL 0x78
> +#define RN5T618_ILIMTHH 0x79
> +#define RN5T618_VBATTHL 0x7a
> +#define RN5T618_VBATTHH 0x7b
> +#define RN5T618_VADPTHL 0x7c
> +#define RN5T618_VADPTHH 0x7d
> +#define RN5T618_VUSBTHL 0x7e
> +#define RN5T618_VUSBTHH 0x7f
> +#define RN5T618_VSYSTHL 0x80
> +#define RN5T618_VSYSTHH 0x81
> +#define RN5T618_VTHMTHL 0x82
> +#define RN5T618_VTHMTHH 0x83
> +#define RN5T618_AIN1THL 0x84
> +#define RN5T618_AIN1THH 0x85
> +#define RN5T618_AIN0THL 0x86
> +#define RN5T618_AIN0THH 0x87
> +#define RN5T618_EN_ADCIR1 0x88
> +#define RN5T618_EN_ADCIR2 0x89
> +#define RN5T618_EN_ADCIR3 0x8a
> +#define RN5T618_IR_ADC1 0x8c
> +#define RN5T618_IR_ADC2 0x8d
> +#define RN5T618_IR_ADC3 0x8e
> +#define RN5T618_IOSEL 0x90
> +#define RN5T618_IOOUT 0x91
> +#define RN5T618_GPEDGE1 0x92
> +#define RN5T618_GPEDGE2 0x93
> +#define RN5T618_EN_GPIR 0x94
> +#define RN5T618_IR_GPR 0x95
> +#define RN5T618_IR_GPF 0x96
> +#define RN5T618_MON_IOIN 0x97
> +#define RN5T618_GPLED_FUNC 0x98
> +#define RN5T618_INTPOL 0x9c
> +#define RN5T618_INTEN 0x9d
> +#define RN5T618_INTMON 0x9e
> +#define RN5T618_PREVINDAC 0xb0
> +#define RN5T618_BATDAC 0xb1
> +#define RN5T618_CHGCTL1 0xb3
> +#define RN5T618_CHGCTL2 0xb4
> +#define RN5T618_VSYSSET 0xb5
> +#define RN5T618_REGISET1 0xb6
> +#define RN5T618_REGISET2 0xb7
> +#define RN5T618_CHGISET 0xb8
> +#define RN5T618_TIMSET 0xb9
> +#define RN5T618_BATSET1 0xba
> +#define RN5T618_BATSET2 0xbb
> +#define RN5T618_DIESET 0xbc
> +#define RN5T618_CHGSTATE 0xbd
> +#define RN5T618_CHGCTRL_IRFMASK 0xbe
> +#define RN5T618_CHGSTAT_IRFMASK1 0xbf
> +#define RN5T618_CHGSTAT_IRFMASK2 0xc0
> +#define RN5T618_CHGERR_IRFMASK 0xc1
> +#define RN5T618_CHGCTRL_IRR 0xc2
> +#define RN5T618_CHGSTAT_IRR1 0xc3
> +#define RN5T618_CHGSTAT_IRR2 0xc4
> +#define RN5T618_CHGERR_IRR 0xc5
> +#define RN5T618_CHGCTRL_MONI 0xc6
> +#define RN5T618_CHGSTAT_MONI1 0xc7
> +#define RN5T618_CHGSTAT_MONI2 0xc8
> +#define RN5T618_CHGERR_MONI 0xc9
> +#define RN5T618_CHGCTRL_DETMOD1 0xca
> +#define RN5T618_CHGCTRL_DETMOD2 0xcb
> +#define RN5T618_CHGSTAT_DETMOD1 0xcc
> +#define RN5T618_CHGSTAT_DETMOD2 0xcd
> +#define RN5T618_CHGSTAT_DETMOD3 0xce
> +#define RN5T618_CHGERR_DETMOD1 0xcf
> +#define RN5T618_CHGERR_DETMOD2 0xd0
> +#define RN5T618_CHGOSCCTL 0xd4
> +#define RN5T618_CHGOSCSCORESET1 0xd5
> +#define RN5T618_CHGOSCSCORESET2 0xd6
> +#define RN5T618_CHGOSCSCORESET3 0xd7
> +#define RN5T618_CHGOSCFREQSET1 0xd8
> +#define RN5T618_CHGOSCFREQSET2 0xd9
> +#define RN5T618_CONTROL 0xe0
> +#define RN5T618_SOC 0xe1
> +#define RN5T618_RE_CAP_H 0xe2
> +#define RN5T618_RE_CAP_L 0xe3
> +#define RN5T618_FA_CAP_H 0xe4
> +#define RN5T618_FA_CAP_L 0xe5
> +#define RN5T618_AGE 0xe6
> +#define RN5T618_TT_EMPTY_H 0xe7
> +#define RN5T618_TT_EMPTY_L 0xe8
> +#define RN5T618_TT_FULL_H 0xe9
> +#define RN5T618_TT_FULL_L 0xea
> +#define RN5T618_VOLTAGE_1 0xeb
> +#define RN5T618_VOLTAGE_0 0xec
> +#define RN5T618_TEMP_1 0xed
> +#define RN5T618_TEMP_0 0xee
> +#define RN5T618_CC_CTRL 0xef
> +#define RN5T618_CC_COUNT2 0xf0
> +#define RN5T618_CC_COUNT1 0xf1
> +#define RN5T618_CC_COUNT0 0xf2
> +#define RN5T618_CC_SUMREG3 0xf3
> +#define RN5T618_CC_SUMREG2 0xf4
> +#define RN5T618_CC_SUMREG1 0xf5
> +#define RN5T618_CC_SUMREG0 0xf6
> +#define RN5T618_CC_OFFREG1 0xf7
> +#define RN5T618_CC_OFFREG0 0xf8
> +#define RN5T618_CC_GAINREG1 0xf9
> +#define RN5T618_CC_GAINREG0 0xfa
> +#define RN5T618_CC_AVEREG1 0xfb
> +#define RN5T618_CC_AVEREG0 0xfc
> +#define RN5T618_MAX_REG 0xfc
> +
> +#define RN5T618_REPCNT_REPWRON BIT(0)
> +#define RN5T618_SLPCNT_SWPWROFF BIT(0)
> +#define RN5T618_WATCHDOG_WDOGEN BIT(2)
> +#define RN5T618_WATCHDOG_WDOGTIM_M (BIT(0) | BIT(1))
> +#define RN5T618_WATCHDOG_WDOGTIM_S 0
> +#define RN5T618_PWRIRQ_IR_WDOG BIT(6)
> +
> +enum {
> + RN5T618_DCDC1,
> + RN5T618_DCDC2,
> + RN5T618_DCDC3,
> + RN5T618_LDO1,
> + RN5T618_LDO2,
> + RN5T618_LDO3,
> + RN5T618_LDO4,
> + RN5T618_LDO5,
> + RN5T618_LDORTC1,
> + RN5T618_LDORTC2,
> + RN5T618_REG_NUM,
> +};
> +
> +struct rn5t618 {
> + struct regmap *regmap;
> +};
> +
> +#endif /* __LINUX_MFD_RN5T618_H */
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH v2 1/4] mfd: Add Ricoh RN5T618 PMIC core driver
@ 2014-09-01 8:25 ` Lee Jones
0 siblings, 0 replies; 16+ messages in thread
From: Lee Jones @ 2014-09-01 8:25 UTC (permalink / raw)
To: Beniamino Galvani
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA, Samuel Ortiz, Mark Brown,
Liam Girdwood, Wim Van Sebroeck, Guenter Roeck,
linux-watchdog-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA, Rob Herring, Pawel Moll,
Mark Rutland, Ian Campbell, Kumar Gala, Grant Likely,
Carlo Caione
On Sat, 30 Aug 2014, Beniamino Galvani wrote:
> Ricoh RN5T618 is a power management IC which integrates 3 step-down
> DCDC converters, 7 low-dropout regulators, a Li-ion battery charger,
> fuel gauge, ADC, GPIOs and a watchdog timer.
>
> This commit adds a MFD core driver to support the I2C communication
> with the device.
>
> Signed-off-by: Beniamino Galvani <b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> ---
> drivers/mfd/Kconfig | 11 +++
> drivers/mfd/Makefile | 1 +
> drivers/mfd/rn5t618.c | 134 +++++++++++++++++++++++++
> include/linux/mfd/rn5t618.h | 228 +++++++++++++++++++++++++++++++++++++++++++
> 4 files changed, 374 insertions(+)
> create mode 100644 drivers/mfd/rn5t618.c
> create mode 100644 include/linux/mfd/rn5t618.h
Applied thanks.
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 8d5fad2..843da5d 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -582,6 +582,17 @@ config MFD_RC5T583
> Additional drivers must be enabled in order to use the
> different functionality of the device.
>
> +config MFD_RN5T618
> + tristate "Ricoh RN5T5618 PMIC"
> + depends on I2C
> + select MFD_CORE
> + select REGMAP_I2C
> + help
> + Say yes here to add support for the Ricoh RN5T618 PMIC. This
> + driver provides common support for accessing the device,
> + additional drivers must be enabled in order to use the
> + functionality of the device.
> +
> config MFD_SEC_CORE
> bool "SAMSUNG Electronics PMIC Series Support"
> depends on I2C=y
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index f001487..b945899 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -160,6 +160,7 @@ obj-$(CONFIG_MFD_INTEL_MSIC) += intel_msic.o
> obj-$(CONFIG_MFD_PALMAS) += palmas.o
> obj-$(CONFIG_MFD_VIPERBOARD) += viperboard.o
> obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o
> +obj-$(CONFIG_MFD_RN5T618) += rn5t618.o
> obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o
> obj-$(CONFIG_MFD_SYSCON) += syscon.o
> obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o
> diff --git a/drivers/mfd/rn5t618.c b/drivers/mfd/rn5t618.c
> new file mode 100644
> index 0000000..6668571
> --- /dev/null
> +++ b/drivers/mfd/rn5t618.c
> @@ -0,0 +1,134 @@
> +/*
> + * MFD core driver for Ricoh RN5T618 PMIC
> + *
> + * Copyright (C) 2014 Beniamino Galvani <b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> + *
> + * 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/i2c.h>
> +#include <linux/mfd/core.h>
> +#include <linux/mfd/rn5t618.h>
> +#include <linux/module.h>
> +#include <linux/regmap.h>
> +
> +static const struct mfd_cell rn5t618_cells[] = {
> + { .name = "rn5t618-regulator" },
> + { .name = "rn5t618-wdt" },
> +};
> +
> +static bool rn5t618_volatile_reg(struct device *dev, unsigned int reg)
> +{
> + switch (reg) {
> + case RN5T618_WATCHDOGCNT:
> + case RN5T618_DCIRQ:
> + case RN5T618_ILIMDATAH ... RN5T618_AIN0DATAL:
> + case RN5T618_IR_ADC1 ... RN5T618_IR_ADC3:
> + case RN5T618_IR_GPR:
> + case RN5T618_IR_GPF:
> + case RN5T618_MON_IOIN:
> + case RN5T618_INTMON:
> + return true;
> + default:
> + return false;
> + }
> +}
> +
> +static const struct regmap_config rn5t618_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + .volatile_reg = rn5t618_volatile_reg,
> + .max_register = RN5T618_MAX_REG,
> + .cache_type = REGCACHE_RBTREE,
> +};
> +
> +static struct rn5t618 *rn5t618_pm_power_off;
> +
> +static void rn5t618_power_off(void)
> +{
> + /* disable automatic repower-on */
> + regmap_update_bits(rn5t618_pm_power_off->regmap, RN5T618_REPCNT,
> + RN5T618_REPCNT_REPWRON, 0);
> + /* start power-off sequence */
> + regmap_update_bits(rn5t618_pm_power_off->regmap, RN5T618_SLPCNT,
> + RN5T618_SLPCNT_SWPWROFF, RN5T618_SLPCNT_SWPWROFF);
> +}
> +
> +static int rn5t618_i2c_probe(struct i2c_client *i2c,
> + const struct i2c_device_id *id)
> +{
> + struct rn5t618 *priv;
> + int ret;
> +
> + priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
> + if (!priv)
> + return -ENOMEM;
> +
> + i2c_set_clientdata(i2c, priv);
> +
> + priv->regmap = devm_regmap_init_i2c(i2c, &rn5t618_regmap_config);
> + if (IS_ERR(priv->regmap)) {
> + ret = PTR_ERR(priv->regmap);
> + dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
> + return ret;
> + }
> +
> + ret = mfd_add_devices(&i2c->dev, -1, rn5t618_cells,
> + ARRAY_SIZE(rn5t618_cells), NULL, 0, NULL);
> + if (ret) {
> + dev_err(&i2c->dev, "failed to add sub-devices: %d\n", ret);
> + return ret;
> + }
> +
> + if (!pm_power_off) {
> + rn5t618_pm_power_off = priv;
> + pm_power_off = rn5t618_power_off;
> + }
> +
> + return 0;
> +}
> +
> +static int rn5t618_i2c_remove(struct i2c_client *i2c)
> +{
> + struct rn5t618 *priv = i2c_get_clientdata(i2c);
> +
> + if (priv == rn5t618_pm_power_off) {
> + rn5t618_pm_power_off = NULL;
> + pm_power_off = NULL;
> + }
> +
> + mfd_remove_devices(&i2c->dev);
> + return 0;
> +}
> +
> +static const struct of_device_id rn5t618_of_match[] = {
> + { .compatible = "ricoh,rn5t618" },
> + { }
> +};
> +MODULE_DEVICE_TABLE(of, rn5t618_of_match);
> +
> +static const struct i2c_device_id rn5t618_i2c_id[] = {
> + { }
> +};
> +MODULE_DEVICE_TABLE(i2c, rn5t618_i2c_id);
> +
> +static struct i2c_driver rn5t618_i2c_driver = {
> + .driver = {
> + .name = "rn5t618",
> + .of_match_table = of_match_ptr(rn5t618_of_match),
> + },
> + .probe = rn5t618_i2c_probe,
> + .remove = rn5t618_i2c_remove,
> + .id_table = rn5t618_i2c_id,
> +};
> +
> +module_i2c_driver(rn5t618_i2c_driver);
> +
> +MODULE_AUTHOR("Beniamino Galvani <b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>");
> +MODULE_DESCRIPTION("Ricoh RN5T618 MFD driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/include/linux/mfd/rn5t618.h b/include/linux/mfd/rn5t618.h
> new file mode 100644
> index 0000000..c72d534
> --- /dev/null
> +++ b/include/linux/mfd/rn5t618.h
> @@ -0,0 +1,228 @@
> +/*
> + * MFD core driver for Ricoh RN5T618 PMIC
> + *
> + * Copyright (C) 2014 Beniamino Galvani <b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> + *
> + * 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/>.
> + */
> +
> +#ifndef __LINUX_MFD_RN5T618_H
> +#define __LINUX_MFD_RN5T618_H
> +
> +#include <linux/regmap.h>
> +
> +#define RN5T618_LSIVER 0x00
> +#define RN5T618_OTPVER 0x01
> +#define RN5T618_IODAC 0x02
> +#define RN5T618_VINDAC 0x03
> +#define RN5T618_CPUCNT 0x06
> +#define RN5T618_PSWR 0x07
> +#define RN5T618_PONHIS 0x09
> +#define RN5T618_POFFHIS 0x0a
> +#define RN5T618_WATCHDOG 0x0b
> +#define RN5T618_WATCHDOGCNT 0x0c
> +#define RN5T618_PWRFUNC 0x0d
> +#define RN5T618_SLPCNT 0x0e
> +#define RN5T618_REPCNT 0x0f
> +#define RN5T618_PWRONTIMSET 0x10
> +#define RN5T618_NOETIMSETCNT 0x11
> +#define RN5T618_PWRIREN 0x12
> +#define RN5T618_PWRIRQ 0x13
> +#define RN5T618_PWRMON 0x14
> +#define RN5T618_PWRIRSEL 0x15
> +#define RN5T618_DC1_SLOT 0x16
> +#define RN5T618_DC2_SLOT 0x17
> +#define RN5T618_DC3_SLOT 0x18
> +#define RN5T618_LDO1_SLOT 0x1b
> +#define RN5T618_LDO2_SLOT 0x1c
> +#define RN5T618_LDO3_SLOT 0x1d
> +#define RN5T618_LDO4_SLOT 0x1e
> +#define RN5T618_LDO5_SLOT 0x1f
> +#define RN5T618_PSO0_SLOT 0x25
> +#define RN5T618_PSO1_SLOT 0x26
> +#define RN5T618_PSO2_SLOT 0x27
> +#define RN5T618_PSO3_SLOT 0x28
> +#define RN5T618_LDORTC1_SLOT 0x2a
> +#define RN5T618_DC1CTL 0x2c
> +#define RN5T618_DC1CTL2 0x2d
> +#define RN5T618_DC2CTL 0x2e
> +#define RN5T618_DC2CTL2 0x2f
> +#define RN5T618_DC3CTL 0x30
> +#define RN5T618_DC3CTL2 0x31
> +#define RN5T618_DC1DAC 0x36
> +#define RN5T618_DC2DAC 0x37
> +#define RN5T618_DC3DAC 0x38
> +#define RN5T618_DC1DAC_SLP 0x3b
> +#define RN5T618_DC2DAC_SLP 0x3c
> +#define RN5T618_DC3DAC_SLP 0x3d
> +#define RN5T618_DCIREN 0x40
> +#define RN5T618_DCIRQ 0x41
> +#define RN5T618_DCIRMON 0x42
> +#define RN5T618_LDOEN1 0x44
> +#define RN5T618_LDOEN2 0x45
> +#define RN5T618_LDODIS 0x46
> +#define RN5T618_LDO1DAC 0x4c
> +#define RN5T618_LDO2DAC 0x4d
> +#define RN5T618_LDO3DAC 0x4e
> +#define RN5T618_LDO4DAC 0x4f
> +#define RN5T618_LDO5DAC 0x50
> +#define RN5T618_LDORTCDAC 0x56
> +#define RN5T618_LDORTC2DAC 0x57
> +#define RN5T618_LDO1DAC_SLP 0x58
> +#define RN5T618_LDO2DAC_SLP 0x59
> +#define RN5T618_LDO3DAC_SLP 0x5a
> +#define RN5T618_LDO4DAC_SLP 0x5b
> +#define RN5T618_LDO5DAC_SLP 0x5c
> +#define RN5T618_ADCCNT1 0x64
> +#define RN5T618_ADCCNT2 0x65
> +#define RN5T618_ADCCNT3 0x66
> +#define RN5T618_ILIMDATAH 0x68
> +#define RN5T618_ILIMDATAL 0x69
> +#define RN5T618_VBATDATAH 0x6a
> +#define RN5T618_VBATDATAL 0x6b
> +#define RN5T618_VADPDATAH 0x6c
> +#define RN5T618_VADPDATAL 0x6d
> +#define RN5T618_VUSBDATAH 0x6e
> +#define RN5T618_VUSBDATAL 0x6f
> +#define RN5T618_VSYSDATAH 0x70
> +#define RN5T618_VSYSDATAL 0x71
> +#define RN5T618_VTHMDATAH 0x72
> +#define RN5T618_VTHMDATAL 0x73
> +#define RN5T618_AIN1DATAH 0x74
> +#define RN5T618_AIN1DATAL 0x75
> +#define RN5T618_AIN0DATAH 0x76
> +#define RN5T618_AIN0DATAL 0x77
> +#define RN5T618_ILIMTHL 0x78
> +#define RN5T618_ILIMTHH 0x79
> +#define RN5T618_VBATTHL 0x7a
> +#define RN5T618_VBATTHH 0x7b
> +#define RN5T618_VADPTHL 0x7c
> +#define RN5T618_VADPTHH 0x7d
> +#define RN5T618_VUSBTHL 0x7e
> +#define RN5T618_VUSBTHH 0x7f
> +#define RN5T618_VSYSTHL 0x80
> +#define RN5T618_VSYSTHH 0x81
> +#define RN5T618_VTHMTHL 0x82
> +#define RN5T618_VTHMTHH 0x83
> +#define RN5T618_AIN1THL 0x84
> +#define RN5T618_AIN1THH 0x85
> +#define RN5T618_AIN0THL 0x86
> +#define RN5T618_AIN0THH 0x87
> +#define RN5T618_EN_ADCIR1 0x88
> +#define RN5T618_EN_ADCIR2 0x89
> +#define RN5T618_EN_ADCIR3 0x8a
> +#define RN5T618_IR_ADC1 0x8c
> +#define RN5T618_IR_ADC2 0x8d
> +#define RN5T618_IR_ADC3 0x8e
> +#define RN5T618_IOSEL 0x90
> +#define RN5T618_IOOUT 0x91
> +#define RN5T618_GPEDGE1 0x92
> +#define RN5T618_GPEDGE2 0x93
> +#define RN5T618_EN_GPIR 0x94
> +#define RN5T618_IR_GPR 0x95
> +#define RN5T618_IR_GPF 0x96
> +#define RN5T618_MON_IOIN 0x97
> +#define RN5T618_GPLED_FUNC 0x98
> +#define RN5T618_INTPOL 0x9c
> +#define RN5T618_INTEN 0x9d
> +#define RN5T618_INTMON 0x9e
> +#define RN5T618_PREVINDAC 0xb0
> +#define RN5T618_BATDAC 0xb1
> +#define RN5T618_CHGCTL1 0xb3
> +#define RN5T618_CHGCTL2 0xb4
> +#define RN5T618_VSYSSET 0xb5
> +#define RN5T618_REGISET1 0xb6
> +#define RN5T618_REGISET2 0xb7
> +#define RN5T618_CHGISET 0xb8
> +#define RN5T618_TIMSET 0xb9
> +#define RN5T618_BATSET1 0xba
> +#define RN5T618_BATSET2 0xbb
> +#define RN5T618_DIESET 0xbc
> +#define RN5T618_CHGSTATE 0xbd
> +#define RN5T618_CHGCTRL_IRFMASK 0xbe
> +#define RN5T618_CHGSTAT_IRFMASK1 0xbf
> +#define RN5T618_CHGSTAT_IRFMASK2 0xc0
> +#define RN5T618_CHGERR_IRFMASK 0xc1
> +#define RN5T618_CHGCTRL_IRR 0xc2
> +#define RN5T618_CHGSTAT_IRR1 0xc3
> +#define RN5T618_CHGSTAT_IRR2 0xc4
> +#define RN5T618_CHGERR_IRR 0xc5
> +#define RN5T618_CHGCTRL_MONI 0xc6
> +#define RN5T618_CHGSTAT_MONI1 0xc7
> +#define RN5T618_CHGSTAT_MONI2 0xc8
> +#define RN5T618_CHGERR_MONI 0xc9
> +#define RN5T618_CHGCTRL_DETMOD1 0xca
> +#define RN5T618_CHGCTRL_DETMOD2 0xcb
> +#define RN5T618_CHGSTAT_DETMOD1 0xcc
> +#define RN5T618_CHGSTAT_DETMOD2 0xcd
> +#define RN5T618_CHGSTAT_DETMOD3 0xce
> +#define RN5T618_CHGERR_DETMOD1 0xcf
> +#define RN5T618_CHGERR_DETMOD2 0xd0
> +#define RN5T618_CHGOSCCTL 0xd4
> +#define RN5T618_CHGOSCSCORESET1 0xd5
> +#define RN5T618_CHGOSCSCORESET2 0xd6
> +#define RN5T618_CHGOSCSCORESET3 0xd7
> +#define RN5T618_CHGOSCFREQSET1 0xd8
> +#define RN5T618_CHGOSCFREQSET2 0xd9
> +#define RN5T618_CONTROL 0xe0
> +#define RN5T618_SOC 0xe1
> +#define RN5T618_RE_CAP_H 0xe2
> +#define RN5T618_RE_CAP_L 0xe3
> +#define RN5T618_FA_CAP_H 0xe4
> +#define RN5T618_FA_CAP_L 0xe5
> +#define RN5T618_AGE 0xe6
> +#define RN5T618_TT_EMPTY_H 0xe7
> +#define RN5T618_TT_EMPTY_L 0xe8
> +#define RN5T618_TT_FULL_H 0xe9
> +#define RN5T618_TT_FULL_L 0xea
> +#define RN5T618_VOLTAGE_1 0xeb
> +#define RN5T618_VOLTAGE_0 0xec
> +#define RN5T618_TEMP_1 0xed
> +#define RN5T618_TEMP_0 0xee
> +#define RN5T618_CC_CTRL 0xef
> +#define RN5T618_CC_COUNT2 0xf0
> +#define RN5T618_CC_COUNT1 0xf1
> +#define RN5T618_CC_COUNT0 0xf2
> +#define RN5T618_CC_SUMREG3 0xf3
> +#define RN5T618_CC_SUMREG2 0xf4
> +#define RN5T618_CC_SUMREG1 0xf5
> +#define RN5T618_CC_SUMREG0 0xf6
> +#define RN5T618_CC_OFFREG1 0xf7
> +#define RN5T618_CC_OFFREG0 0xf8
> +#define RN5T618_CC_GAINREG1 0xf9
> +#define RN5T618_CC_GAINREG0 0xfa
> +#define RN5T618_CC_AVEREG1 0xfb
> +#define RN5T618_CC_AVEREG0 0xfc
> +#define RN5T618_MAX_REG 0xfc
> +
> +#define RN5T618_REPCNT_REPWRON BIT(0)
> +#define RN5T618_SLPCNT_SWPWROFF BIT(0)
> +#define RN5T618_WATCHDOG_WDOGEN BIT(2)
> +#define RN5T618_WATCHDOG_WDOGTIM_M (BIT(0) | BIT(1))
> +#define RN5T618_WATCHDOG_WDOGTIM_S 0
> +#define RN5T618_PWRIRQ_IR_WDOG BIT(6)
> +
> +enum {
> + RN5T618_DCDC1,
> + RN5T618_DCDC2,
> + RN5T618_DCDC3,
> + RN5T618_LDO1,
> + RN5T618_LDO2,
> + RN5T618_LDO3,
> + RN5T618_LDO4,
> + RN5T618_LDO5,
> + RN5T618_LDORTC1,
> + RN5T618_LDORTC2,
> + RN5T618_REG_NUM,
> +};
> +
> +struct rn5t618 {
> + struct regmap *regmap;
> +};
> +
> +#endif /* __LINUX_MFD_RN5T618_H */
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH v2 1/4] mfd: Add Ricoh RN5T618 PMIC core driver
@ 2014-09-01 8:25 ` Lee Jones
0 siblings, 0 replies; 16+ messages in thread
From: Lee Jones @ 2014-09-01 8:25 UTC (permalink / raw)
To: Beniamino Galvani
Cc: linux-kernel, Samuel Ortiz, Mark Brown, Liam Girdwood,
Wim Van Sebroeck, Guenter Roeck, linux-watchdog, devicetree,
Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
Grant Likely, Carlo Caione
On Sat, 30 Aug 2014, Beniamino Galvani wrote:
> Ricoh RN5T618 is a power management IC which integrates 3 step-down
> DCDC converters, 7 low-dropout regulators, a Li-ion battery charger,
> fuel gauge, ADC, GPIOs and a watchdog timer.
>
> This commit adds a MFD core driver to support the I2C communication
> with the device.
>
> Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
> ---
> drivers/mfd/Kconfig | 11 +++
> drivers/mfd/Makefile | 1 +
> drivers/mfd/rn5t618.c | 134 +++++++++++++++++++++++++
> include/linux/mfd/rn5t618.h | 228 +++++++++++++++++++++++++++++++++++++++++++
> 4 files changed, 374 insertions(+)
> create mode 100644 drivers/mfd/rn5t618.c
> create mode 100644 include/linux/mfd/rn5t618.h
Applied thanks.
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 8d5fad2..843da5d 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -582,6 +582,17 @@ config MFD_RC5T583
> Additional drivers must be enabled in order to use the
> different functionality of the device.
>
> +config MFD_RN5T618
> + tristate "Ricoh RN5T5618 PMIC"
> + depends on I2C
> + select MFD_CORE
> + select REGMAP_I2C
> + help
> + Say yes here to add support for the Ricoh RN5T618 PMIC. This
> + driver provides common support for accessing the device,
> + additional drivers must be enabled in order to use the
> + functionality of the device.
> +
> config MFD_SEC_CORE
> bool "SAMSUNG Electronics PMIC Series Support"
> depends on I2C=y
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index f001487..b945899 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -160,6 +160,7 @@ obj-$(CONFIG_MFD_INTEL_MSIC) += intel_msic.o
> obj-$(CONFIG_MFD_PALMAS) += palmas.o
> obj-$(CONFIG_MFD_VIPERBOARD) += viperboard.o
> obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o
> +obj-$(CONFIG_MFD_RN5T618) += rn5t618.o
> obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o
> obj-$(CONFIG_MFD_SYSCON) += syscon.o
> obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o
> diff --git a/drivers/mfd/rn5t618.c b/drivers/mfd/rn5t618.c
> new file mode 100644
> index 0000000..6668571
> --- /dev/null
> +++ b/drivers/mfd/rn5t618.c
> @@ -0,0 +1,134 @@
> +/*
> + * MFD core 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/i2c.h>
> +#include <linux/mfd/core.h>
> +#include <linux/mfd/rn5t618.h>
> +#include <linux/module.h>
> +#include <linux/regmap.h>
> +
> +static const struct mfd_cell rn5t618_cells[] = {
> + { .name = "rn5t618-regulator" },
> + { .name = "rn5t618-wdt" },
> +};
> +
> +static bool rn5t618_volatile_reg(struct device *dev, unsigned int reg)
> +{
> + switch (reg) {
> + case RN5T618_WATCHDOGCNT:
> + case RN5T618_DCIRQ:
> + case RN5T618_ILIMDATAH ... RN5T618_AIN0DATAL:
> + case RN5T618_IR_ADC1 ... RN5T618_IR_ADC3:
> + case RN5T618_IR_GPR:
> + case RN5T618_IR_GPF:
> + case RN5T618_MON_IOIN:
> + case RN5T618_INTMON:
> + return true;
> + default:
> + return false;
> + }
> +}
> +
> +static const struct regmap_config rn5t618_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + .volatile_reg = rn5t618_volatile_reg,
> + .max_register = RN5T618_MAX_REG,
> + .cache_type = REGCACHE_RBTREE,
> +};
> +
> +static struct rn5t618 *rn5t618_pm_power_off;
> +
> +static void rn5t618_power_off(void)
> +{
> + /* disable automatic repower-on */
> + regmap_update_bits(rn5t618_pm_power_off->regmap, RN5T618_REPCNT,
> + RN5T618_REPCNT_REPWRON, 0);
> + /* start power-off sequence */
> + regmap_update_bits(rn5t618_pm_power_off->regmap, RN5T618_SLPCNT,
> + RN5T618_SLPCNT_SWPWROFF, RN5T618_SLPCNT_SWPWROFF);
> +}
> +
> +static int rn5t618_i2c_probe(struct i2c_client *i2c,
> + const struct i2c_device_id *id)
> +{
> + struct rn5t618 *priv;
> + int ret;
> +
> + priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
> + if (!priv)
> + return -ENOMEM;
> +
> + i2c_set_clientdata(i2c, priv);
> +
> + priv->regmap = devm_regmap_init_i2c(i2c, &rn5t618_regmap_config);
> + if (IS_ERR(priv->regmap)) {
> + ret = PTR_ERR(priv->regmap);
> + dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
> + return ret;
> + }
> +
> + ret = mfd_add_devices(&i2c->dev, -1, rn5t618_cells,
> + ARRAY_SIZE(rn5t618_cells), NULL, 0, NULL);
> + if (ret) {
> + dev_err(&i2c->dev, "failed to add sub-devices: %d\n", ret);
> + return ret;
> + }
> +
> + if (!pm_power_off) {
> + rn5t618_pm_power_off = priv;
> + pm_power_off = rn5t618_power_off;
> + }
> +
> + return 0;
> +}
> +
> +static int rn5t618_i2c_remove(struct i2c_client *i2c)
> +{
> + struct rn5t618 *priv = i2c_get_clientdata(i2c);
> +
> + if (priv == rn5t618_pm_power_off) {
> + rn5t618_pm_power_off = NULL;
> + pm_power_off = NULL;
> + }
> +
> + mfd_remove_devices(&i2c->dev);
> + return 0;
> +}
> +
> +static const struct of_device_id rn5t618_of_match[] = {
> + { .compatible = "ricoh,rn5t618" },
> + { }
> +};
> +MODULE_DEVICE_TABLE(of, rn5t618_of_match);
> +
> +static const struct i2c_device_id rn5t618_i2c_id[] = {
> + { }
> +};
> +MODULE_DEVICE_TABLE(i2c, rn5t618_i2c_id);
> +
> +static struct i2c_driver rn5t618_i2c_driver = {
> + .driver = {
> + .name = "rn5t618",
> + .of_match_table = of_match_ptr(rn5t618_of_match),
> + },
> + .probe = rn5t618_i2c_probe,
> + .remove = rn5t618_i2c_remove,
> + .id_table = rn5t618_i2c_id,
> +};
> +
> +module_i2c_driver(rn5t618_i2c_driver);
> +
> +MODULE_AUTHOR("Beniamino Galvani <b.galvani@gmail.com>");
> +MODULE_DESCRIPTION("Ricoh RN5T618 MFD driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/include/linux/mfd/rn5t618.h b/include/linux/mfd/rn5t618.h
> new file mode 100644
> index 0000000..c72d534
> --- /dev/null
> +++ b/include/linux/mfd/rn5t618.h
> @@ -0,0 +1,228 @@
> +/*
> + * MFD core 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/>.
> + */
> +
> +#ifndef __LINUX_MFD_RN5T618_H
> +#define __LINUX_MFD_RN5T618_H
> +
> +#include <linux/regmap.h>
> +
> +#define RN5T618_LSIVER 0x00
> +#define RN5T618_OTPVER 0x01
> +#define RN5T618_IODAC 0x02
> +#define RN5T618_VINDAC 0x03
> +#define RN5T618_CPUCNT 0x06
> +#define RN5T618_PSWR 0x07
> +#define RN5T618_PONHIS 0x09
> +#define RN5T618_POFFHIS 0x0a
> +#define RN5T618_WATCHDOG 0x0b
> +#define RN5T618_WATCHDOGCNT 0x0c
> +#define RN5T618_PWRFUNC 0x0d
> +#define RN5T618_SLPCNT 0x0e
> +#define RN5T618_REPCNT 0x0f
> +#define RN5T618_PWRONTIMSET 0x10
> +#define RN5T618_NOETIMSETCNT 0x11
> +#define RN5T618_PWRIREN 0x12
> +#define RN5T618_PWRIRQ 0x13
> +#define RN5T618_PWRMON 0x14
> +#define RN5T618_PWRIRSEL 0x15
> +#define RN5T618_DC1_SLOT 0x16
> +#define RN5T618_DC2_SLOT 0x17
> +#define RN5T618_DC3_SLOT 0x18
> +#define RN5T618_LDO1_SLOT 0x1b
> +#define RN5T618_LDO2_SLOT 0x1c
> +#define RN5T618_LDO3_SLOT 0x1d
> +#define RN5T618_LDO4_SLOT 0x1e
> +#define RN5T618_LDO5_SLOT 0x1f
> +#define RN5T618_PSO0_SLOT 0x25
> +#define RN5T618_PSO1_SLOT 0x26
> +#define RN5T618_PSO2_SLOT 0x27
> +#define RN5T618_PSO3_SLOT 0x28
> +#define RN5T618_LDORTC1_SLOT 0x2a
> +#define RN5T618_DC1CTL 0x2c
> +#define RN5T618_DC1CTL2 0x2d
> +#define RN5T618_DC2CTL 0x2e
> +#define RN5T618_DC2CTL2 0x2f
> +#define RN5T618_DC3CTL 0x30
> +#define RN5T618_DC3CTL2 0x31
> +#define RN5T618_DC1DAC 0x36
> +#define RN5T618_DC2DAC 0x37
> +#define RN5T618_DC3DAC 0x38
> +#define RN5T618_DC1DAC_SLP 0x3b
> +#define RN5T618_DC2DAC_SLP 0x3c
> +#define RN5T618_DC3DAC_SLP 0x3d
> +#define RN5T618_DCIREN 0x40
> +#define RN5T618_DCIRQ 0x41
> +#define RN5T618_DCIRMON 0x42
> +#define RN5T618_LDOEN1 0x44
> +#define RN5T618_LDOEN2 0x45
> +#define RN5T618_LDODIS 0x46
> +#define RN5T618_LDO1DAC 0x4c
> +#define RN5T618_LDO2DAC 0x4d
> +#define RN5T618_LDO3DAC 0x4e
> +#define RN5T618_LDO4DAC 0x4f
> +#define RN5T618_LDO5DAC 0x50
> +#define RN5T618_LDORTCDAC 0x56
> +#define RN5T618_LDORTC2DAC 0x57
> +#define RN5T618_LDO1DAC_SLP 0x58
> +#define RN5T618_LDO2DAC_SLP 0x59
> +#define RN5T618_LDO3DAC_SLP 0x5a
> +#define RN5T618_LDO4DAC_SLP 0x5b
> +#define RN5T618_LDO5DAC_SLP 0x5c
> +#define RN5T618_ADCCNT1 0x64
> +#define RN5T618_ADCCNT2 0x65
> +#define RN5T618_ADCCNT3 0x66
> +#define RN5T618_ILIMDATAH 0x68
> +#define RN5T618_ILIMDATAL 0x69
> +#define RN5T618_VBATDATAH 0x6a
> +#define RN5T618_VBATDATAL 0x6b
> +#define RN5T618_VADPDATAH 0x6c
> +#define RN5T618_VADPDATAL 0x6d
> +#define RN5T618_VUSBDATAH 0x6e
> +#define RN5T618_VUSBDATAL 0x6f
> +#define RN5T618_VSYSDATAH 0x70
> +#define RN5T618_VSYSDATAL 0x71
> +#define RN5T618_VTHMDATAH 0x72
> +#define RN5T618_VTHMDATAL 0x73
> +#define RN5T618_AIN1DATAH 0x74
> +#define RN5T618_AIN1DATAL 0x75
> +#define RN5T618_AIN0DATAH 0x76
> +#define RN5T618_AIN0DATAL 0x77
> +#define RN5T618_ILIMTHL 0x78
> +#define RN5T618_ILIMTHH 0x79
> +#define RN5T618_VBATTHL 0x7a
> +#define RN5T618_VBATTHH 0x7b
> +#define RN5T618_VADPTHL 0x7c
> +#define RN5T618_VADPTHH 0x7d
> +#define RN5T618_VUSBTHL 0x7e
> +#define RN5T618_VUSBTHH 0x7f
> +#define RN5T618_VSYSTHL 0x80
> +#define RN5T618_VSYSTHH 0x81
> +#define RN5T618_VTHMTHL 0x82
> +#define RN5T618_VTHMTHH 0x83
> +#define RN5T618_AIN1THL 0x84
> +#define RN5T618_AIN1THH 0x85
> +#define RN5T618_AIN0THL 0x86
> +#define RN5T618_AIN0THH 0x87
> +#define RN5T618_EN_ADCIR1 0x88
> +#define RN5T618_EN_ADCIR2 0x89
> +#define RN5T618_EN_ADCIR3 0x8a
> +#define RN5T618_IR_ADC1 0x8c
> +#define RN5T618_IR_ADC2 0x8d
> +#define RN5T618_IR_ADC3 0x8e
> +#define RN5T618_IOSEL 0x90
> +#define RN5T618_IOOUT 0x91
> +#define RN5T618_GPEDGE1 0x92
> +#define RN5T618_GPEDGE2 0x93
> +#define RN5T618_EN_GPIR 0x94
> +#define RN5T618_IR_GPR 0x95
> +#define RN5T618_IR_GPF 0x96
> +#define RN5T618_MON_IOIN 0x97
> +#define RN5T618_GPLED_FUNC 0x98
> +#define RN5T618_INTPOL 0x9c
> +#define RN5T618_INTEN 0x9d
> +#define RN5T618_INTMON 0x9e
> +#define RN5T618_PREVINDAC 0xb0
> +#define RN5T618_BATDAC 0xb1
> +#define RN5T618_CHGCTL1 0xb3
> +#define RN5T618_CHGCTL2 0xb4
> +#define RN5T618_VSYSSET 0xb5
> +#define RN5T618_REGISET1 0xb6
> +#define RN5T618_REGISET2 0xb7
> +#define RN5T618_CHGISET 0xb8
> +#define RN5T618_TIMSET 0xb9
> +#define RN5T618_BATSET1 0xba
> +#define RN5T618_BATSET2 0xbb
> +#define RN5T618_DIESET 0xbc
> +#define RN5T618_CHGSTATE 0xbd
> +#define RN5T618_CHGCTRL_IRFMASK 0xbe
> +#define RN5T618_CHGSTAT_IRFMASK1 0xbf
> +#define RN5T618_CHGSTAT_IRFMASK2 0xc0
> +#define RN5T618_CHGERR_IRFMASK 0xc1
> +#define RN5T618_CHGCTRL_IRR 0xc2
> +#define RN5T618_CHGSTAT_IRR1 0xc3
> +#define RN5T618_CHGSTAT_IRR2 0xc4
> +#define RN5T618_CHGERR_IRR 0xc5
> +#define RN5T618_CHGCTRL_MONI 0xc6
> +#define RN5T618_CHGSTAT_MONI1 0xc7
> +#define RN5T618_CHGSTAT_MONI2 0xc8
> +#define RN5T618_CHGERR_MONI 0xc9
> +#define RN5T618_CHGCTRL_DETMOD1 0xca
> +#define RN5T618_CHGCTRL_DETMOD2 0xcb
> +#define RN5T618_CHGSTAT_DETMOD1 0xcc
> +#define RN5T618_CHGSTAT_DETMOD2 0xcd
> +#define RN5T618_CHGSTAT_DETMOD3 0xce
> +#define RN5T618_CHGERR_DETMOD1 0xcf
> +#define RN5T618_CHGERR_DETMOD2 0xd0
> +#define RN5T618_CHGOSCCTL 0xd4
> +#define RN5T618_CHGOSCSCORESET1 0xd5
> +#define RN5T618_CHGOSCSCORESET2 0xd6
> +#define RN5T618_CHGOSCSCORESET3 0xd7
> +#define RN5T618_CHGOSCFREQSET1 0xd8
> +#define RN5T618_CHGOSCFREQSET2 0xd9
> +#define RN5T618_CONTROL 0xe0
> +#define RN5T618_SOC 0xe1
> +#define RN5T618_RE_CAP_H 0xe2
> +#define RN5T618_RE_CAP_L 0xe3
> +#define RN5T618_FA_CAP_H 0xe4
> +#define RN5T618_FA_CAP_L 0xe5
> +#define RN5T618_AGE 0xe6
> +#define RN5T618_TT_EMPTY_H 0xe7
> +#define RN5T618_TT_EMPTY_L 0xe8
> +#define RN5T618_TT_FULL_H 0xe9
> +#define RN5T618_TT_FULL_L 0xea
> +#define RN5T618_VOLTAGE_1 0xeb
> +#define RN5T618_VOLTAGE_0 0xec
> +#define RN5T618_TEMP_1 0xed
> +#define RN5T618_TEMP_0 0xee
> +#define RN5T618_CC_CTRL 0xef
> +#define RN5T618_CC_COUNT2 0xf0
> +#define RN5T618_CC_COUNT1 0xf1
> +#define RN5T618_CC_COUNT0 0xf2
> +#define RN5T618_CC_SUMREG3 0xf3
> +#define RN5T618_CC_SUMREG2 0xf4
> +#define RN5T618_CC_SUMREG1 0xf5
> +#define RN5T618_CC_SUMREG0 0xf6
> +#define RN5T618_CC_OFFREG1 0xf7
> +#define RN5T618_CC_OFFREG0 0xf8
> +#define RN5T618_CC_GAINREG1 0xf9
> +#define RN5T618_CC_GAINREG0 0xfa
> +#define RN5T618_CC_AVEREG1 0xfb
> +#define RN5T618_CC_AVEREG0 0xfc
> +#define RN5T618_MAX_REG 0xfc
> +
> +#define RN5T618_REPCNT_REPWRON BIT(0)
> +#define RN5T618_SLPCNT_SWPWROFF BIT(0)
> +#define RN5T618_WATCHDOG_WDOGEN BIT(2)
> +#define RN5T618_WATCHDOG_WDOGTIM_M (BIT(0) | BIT(1))
> +#define RN5T618_WATCHDOG_WDOGTIM_S 0
> +#define RN5T618_PWRIRQ_IR_WDOG BIT(6)
> +
> +enum {
> + RN5T618_DCDC1,
> + RN5T618_DCDC2,
> + RN5T618_DCDC3,
> + RN5T618_LDO1,
> + RN5T618_LDO2,
> + RN5T618_LDO3,
> + RN5T618_LDO4,
> + RN5T618_LDO5,
> + RN5T618_LDORTC1,
> + RN5T618_LDORTC2,
> + RN5T618_REG_NUM,
> +};
> +
> +struct rn5t618 {
> + struct regmap *regmap;
> +};
> +
> +#endif /* __LINUX_MFD_RN5T618_H */
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in
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^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH v2 1/4] mfd: Add Ricoh RN5T618 PMIC core driver
2014-08-30 12:50 ` Beniamino Galvani
@ 2014-09-01 8:26 ` Lee Jones
-1 siblings, 0 replies; 16+ messages in thread
From: Lee Jones @ 2014-09-01 8:26 UTC (permalink / raw)
To: Beniamino Galvani
Cc: linux-kernel, Samuel Ortiz, Mark Brown, Liam Girdwood,
Wim Van Sebroeck, Guenter Roeck, linux-watchdog, devicetree,
Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
Grant Likely, Carlo Caione
On Sat, 30 Aug 2014, Beniamino Galvani wrote:
> Ricoh RN5T618 is a power management IC which integrates 3 step-down
> DCDC converters, 7 low-dropout regulators, a Li-ion battery charger,
> fuel gauge, ADC, GPIOs and a watchdog timer.
>
> This commit adds a MFD core driver to support the I2C communication
> with the device.
>
> Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
> ---
> drivers/mfd/Kconfig | 11 +++
> drivers/mfd/Makefile | 1 +
> drivers/mfd/rn5t618.c | 134 +++++++++++++++++++++++++
> include/linux/mfd/rn5t618.h | 228 +++++++++++++++++++++++++++++++++++++++++++
> 4 files changed, 374 insertions(+)
> create mode 100644 drivers/mfd/rn5t618.c
> create mode 100644 include/linux/mfd/rn5t618.h
Applied, thanks.
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 8d5fad2..843da5d 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -582,6 +582,17 @@ config MFD_RC5T583
> Additional drivers must be enabled in order to use the
> different functionality of the device.
>
> +config MFD_RN5T618
> + tristate "Ricoh RN5T5618 PMIC"
> + depends on I2C
> + select MFD_CORE
> + select REGMAP_I2C
> + help
> + Say yes here to add support for the Ricoh RN5T618 PMIC. This
> + driver provides common support for accessing the device,
> + additional drivers must be enabled in order to use the
> + functionality of the device.
> +
> config MFD_SEC_CORE
> bool "SAMSUNG Electronics PMIC Series Support"
> depends on I2C=y
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index f001487..b945899 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -160,6 +160,7 @@ obj-$(CONFIG_MFD_INTEL_MSIC) += intel_msic.o
> obj-$(CONFIG_MFD_PALMAS) += palmas.o
> obj-$(CONFIG_MFD_VIPERBOARD) += viperboard.o
> obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o
> +obj-$(CONFIG_MFD_RN5T618) += rn5t618.o
> obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o
> obj-$(CONFIG_MFD_SYSCON) += syscon.o
> obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o
> diff --git a/drivers/mfd/rn5t618.c b/drivers/mfd/rn5t618.c
> new file mode 100644
> index 0000000..6668571
> --- /dev/null
> +++ b/drivers/mfd/rn5t618.c
> @@ -0,0 +1,134 @@
> +/*
> + * MFD core 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/i2c.h>
> +#include <linux/mfd/core.h>
> +#include <linux/mfd/rn5t618.h>
> +#include <linux/module.h>
> +#include <linux/regmap.h>
> +
> +static const struct mfd_cell rn5t618_cells[] = {
> + { .name = "rn5t618-regulator" },
> + { .name = "rn5t618-wdt" },
> +};
> +
> +static bool rn5t618_volatile_reg(struct device *dev, unsigned int reg)
> +{
> + switch (reg) {
> + case RN5T618_WATCHDOGCNT:
> + case RN5T618_DCIRQ:
> + case RN5T618_ILIMDATAH ... RN5T618_AIN0DATAL:
> + case RN5T618_IR_ADC1 ... RN5T618_IR_ADC3:
> + case RN5T618_IR_GPR:
> + case RN5T618_IR_GPF:
> + case RN5T618_MON_IOIN:
> + case RN5T618_INTMON:
> + return true;
> + default:
> + return false;
> + }
> +}
> +
> +static const struct regmap_config rn5t618_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + .volatile_reg = rn5t618_volatile_reg,
> + .max_register = RN5T618_MAX_REG,
> + .cache_type = REGCACHE_RBTREE,
> +};
> +
> +static struct rn5t618 *rn5t618_pm_power_off;
> +
> +static void rn5t618_power_off(void)
> +{
> + /* disable automatic repower-on */
> + regmap_update_bits(rn5t618_pm_power_off->regmap, RN5T618_REPCNT,
> + RN5T618_REPCNT_REPWRON, 0);
> + /* start power-off sequence */
> + regmap_update_bits(rn5t618_pm_power_off->regmap, RN5T618_SLPCNT,
> + RN5T618_SLPCNT_SWPWROFF, RN5T618_SLPCNT_SWPWROFF);
> +}
> +
> +static int rn5t618_i2c_probe(struct i2c_client *i2c,
> + const struct i2c_device_id *id)
> +{
> + struct rn5t618 *priv;
> + int ret;
> +
> + priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
> + if (!priv)
> + return -ENOMEM;
> +
> + i2c_set_clientdata(i2c, priv);
> +
> + priv->regmap = devm_regmap_init_i2c(i2c, &rn5t618_regmap_config);
> + if (IS_ERR(priv->regmap)) {
> + ret = PTR_ERR(priv->regmap);
> + dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
> + return ret;
> + }
> +
> + ret = mfd_add_devices(&i2c->dev, -1, rn5t618_cells,
> + ARRAY_SIZE(rn5t618_cells), NULL, 0, NULL);
> + if (ret) {
> + dev_err(&i2c->dev, "failed to add sub-devices: %d\n", ret);
> + return ret;
> + }
> +
> + if (!pm_power_off) {
> + rn5t618_pm_power_off = priv;
> + pm_power_off = rn5t618_power_off;
> + }
> +
> + return 0;
> +}
> +
> +static int rn5t618_i2c_remove(struct i2c_client *i2c)
> +{
> + struct rn5t618 *priv = i2c_get_clientdata(i2c);
> +
> + if (priv == rn5t618_pm_power_off) {
> + rn5t618_pm_power_off = NULL;
> + pm_power_off = NULL;
> + }
> +
> + mfd_remove_devices(&i2c->dev);
> + return 0;
> +}
> +
> +static const struct of_device_id rn5t618_of_match[] = {
> + { .compatible = "ricoh,rn5t618" },
> + { }
> +};
> +MODULE_DEVICE_TABLE(of, rn5t618_of_match);
> +
> +static const struct i2c_device_id rn5t618_i2c_id[] = {
> + { }
> +};
> +MODULE_DEVICE_TABLE(i2c, rn5t618_i2c_id);
> +
> +static struct i2c_driver rn5t618_i2c_driver = {
> + .driver = {
> + .name = "rn5t618",
> + .of_match_table = of_match_ptr(rn5t618_of_match),
> + },
> + .probe = rn5t618_i2c_probe,
> + .remove = rn5t618_i2c_remove,
> + .id_table = rn5t618_i2c_id,
> +};
> +
> +module_i2c_driver(rn5t618_i2c_driver);
> +
> +MODULE_AUTHOR("Beniamino Galvani <b.galvani@gmail.com>");
> +MODULE_DESCRIPTION("Ricoh RN5T618 MFD driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/include/linux/mfd/rn5t618.h b/include/linux/mfd/rn5t618.h
> new file mode 100644
> index 0000000..c72d534
> --- /dev/null
> +++ b/include/linux/mfd/rn5t618.h
> @@ -0,0 +1,228 @@
> +/*
> + * MFD core 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/>.
> + */
> +
> +#ifndef __LINUX_MFD_RN5T618_H
> +#define __LINUX_MFD_RN5T618_H
> +
> +#include <linux/regmap.h>
> +
> +#define RN5T618_LSIVER 0x00
> +#define RN5T618_OTPVER 0x01
> +#define RN5T618_IODAC 0x02
> +#define RN5T618_VINDAC 0x03
> +#define RN5T618_CPUCNT 0x06
> +#define RN5T618_PSWR 0x07
> +#define RN5T618_PONHIS 0x09
> +#define RN5T618_POFFHIS 0x0a
> +#define RN5T618_WATCHDOG 0x0b
> +#define RN5T618_WATCHDOGCNT 0x0c
> +#define RN5T618_PWRFUNC 0x0d
> +#define RN5T618_SLPCNT 0x0e
> +#define RN5T618_REPCNT 0x0f
> +#define RN5T618_PWRONTIMSET 0x10
> +#define RN5T618_NOETIMSETCNT 0x11
> +#define RN5T618_PWRIREN 0x12
> +#define RN5T618_PWRIRQ 0x13
> +#define RN5T618_PWRMON 0x14
> +#define RN5T618_PWRIRSEL 0x15
> +#define RN5T618_DC1_SLOT 0x16
> +#define RN5T618_DC2_SLOT 0x17
> +#define RN5T618_DC3_SLOT 0x18
> +#define RN5T618_LDO1_SLOT 0x1b
> +#define RN5T618_LDO2_SLOT 0x1c
> +#define RN5T618_LDO3_SLOT 0x1d
> +#define RN5T618_LDO4_SLOT 0x1e
> +#define RN5T618_LDO5_SLOT 0x1f
> +#define RN5T618_PSO0_SLOT 0x25
> +#define RN5T618_PSO1_SLOT 0x26
> +#define RN5T618_PSO2_SLOT 0x27
> +#define RN5T618_PSO3_SLOT 0x28
> +#define RN5T618_LDORTC1_SLOT 0x2a
> +#define RN5T618_DC1CTL 0x2c
> +#define RN5T618_DC1CTL2 0x2d
> +#define RN5T618_DC2CTL 0x2e
> +#define RN5T618_DC2CTL2 0x2f
> +#define RN5T618_DC3CTL 0x30
> +#define RN5T618_DC3CTL2 0x31
> +#define RN5T618_DC1DAC 0x36
> +#define RN5T618_DC2DAC 0x37
> +#define RN5T618_DC3DAC 0x38
> +#define RN5T618_DC1DAC_SLP 0x3b
> +#define RN5T618_DC2DAC_SLP 0x3c
> +#define RN5T618_DC3DAC_SLP 0x3d
> +#define RN5T618_DCIREN 0x40
> +#define RN5T618_DCIRQ 0x41
> +#define RN5T618_DCIRMON 0x42
> +#define RN5T618_LDOEN1 0x44
> +#define RN5T618_LDOEN2 0x45
> +#define RN5T618_LDODIS 0x46
> +#define RN5T618_LDO1DAC 0x4c
> +#define RN5T618_LDO2DAC 0x4d
> +#define RN5T618_LDO3DAC 0x4e
> +#define RN5T618_LDO4DAC 0x4f
> +#define RN5T618_LDO5DAC 0x50
> +#define RN5T618_LDORTCDAC 0x56
> +#define RN5T618_LDORTC2DAC 0x57
> +#define RN5T618_LDO1DAC_SLP 0x58
> +#define RN5T618_LDO2DAC_SLP 0x59
> +#define RN5T618_LDO3DAC_SLP 0x5a
> +#define RN5T618_LDO4DAC_SLP 0x5b
> +#define RN5T618_LDO5DAC_SLP 0x5c
> +#define RN5T618_ADCCNT1 0x64
> +#define RN5T618_ADCCNT2 0x65
> +#define RN5T618_ADCCNT3 0x66
> +#define RN5T618_ILIMDATAH 0x68
> +#define RN5T618_ILIMDATAL 0x69
> +#define RN5T618_VBATDATAH 0x6a
> +#define RN5T618_VBATDATAL 0x6b
> +#define RN5T618_VADPDATAH 0x6c
> +#define RN5T618_VADPDATAL 0x6d
> +#define RN5T618_VUSBDATAH 0x6e
> +#define RN5T618_VUSBDATAL 0x6f
> +#define RN5T618_VSYSDATAH 0x70
> +#define RN5T618_VSYSDATAL 0x71
> +#define RN5T618_VTHMDATAH 0x72
> +#define RN5T618_VTHMDATAL 0x73
> +#define RN5T618_AIN1DATAH 0x74
> +#define RN5T618_AIN1DATAL 0x75
> +#define RN5T618_AIN0DATAH 0x76
> +#define RN5T618_AIN0DATAL 0x77
> +#define RN5T618_ILIMTHL 0x78
> +#define RN5T618_ILIMTHH 0x79
> +#define RN5T618_VBATTHL 0x7a
> +#define RN5T618_VBATTHH 0x7b
> +#define RN5T618_VADPTHL 0x7c
> +#define RN5T618_VADPTHH 0x7d
> +#define RN5T618_VUSBTHL 0x7e
> +#define RN5T618_VUSBTHH 0x7f
> +#define RN5T618_VSYSTHL 0x80
> +#define RN5T618_VSYSTHH 0x81
> +#define RN5T618_VTHMTHL 0x82
> +#define RN5T618_VTHMTHH 0x83
> +#define RN5T618_AIN1THL 0x84
> +#define RN5T618_AIN1THH 0x85
> +#define RN5T618_AIN0THL 0x86
> +#define RN5T618_AIN0THH 0x87
> +#define RN5T618_EN_ADCIR1 0x88
> +#define RN5T618_EN_ADCIR2 0x89
> +#define RN5T618_EN_ADCIR3 0x8a
> +#define RN5T618_IR_ADC1 0x8c
> +#define RN5T618_IR_ADC2 0x8d
> +#define RN5T618_IR_ADC3 0x8e
> +#define RN5T618_IOSEL 0x90
> +#define RN5T618_IOOUT 0x91
> +#define RN5T618_GPEDGE1 0x92
> +#define RN5T618_GPEDGE2 0x93
> +#define RN5T618_EN_GPIR 0x94
> +#define RN5T618_IR_GPR 0x95
> +#define RN5T618_IR_GPF 0x96
> +#define RN5T618_MON_IOIN 0x97
> +#define RN5T618_GPLED_FUNC 0x98
> +#define RN5T618_INTPOL 0x9c
> +#define RN5T618_INTEN 0x9d
> +#define RN5T618_INTMON 0x9e
> +#define RN5T618_PREVINDAC 0xb0
> +#define RN5T618_BATDAC 0xb1
> +#define RN5T618_CHGCTL1 0xb3
> +#define RN5T618_CHGCTL2 0xb4
> +#define RN5T618_VSYSSET 0xb5
> +#define RN5T618_REGISET1 0xb6
> +#define RN5T618_REGISET2 0xb7
> +#define RN5T618_CHGISET 0xb8
> +#define RN5T618_TIMSET 0xb9
> +#define RN5T618_BATSET1 0xba
> +#define RN5T618_BATSET2 0xbb
> +#define RN5T618_DIESET 0xbc
> +#define RN5T618_CHGSTATE 0xbd
> +#define RN5T618_CHGCTRL_IRFMASK 0xbe
> +#define RN5T618_CHGSTAT_IRFMASK1 0xbf
> +#define RN5T618_CHGSTAT_IRFMASK2 0xc0
> +#define RN5T618_CHGERR_IRFMASK 0xc1
> +#define RN5T618_CHGCTRL_IRR 0xc2
> +#define RN5T618_CHGSTAT_IRR1 0xc3
> +#define RN5T618_CHGSTAT_IRR2 0xc4
> +#define RN5T618_CHGERR_IRR 0xc5
> +#define RN5T618_CHGCTRL_MONI 0xc6
> +#define RN5T618_CHGSTAT_MONI1 0xc7
> +#define RN5T618_CHGSTAT_MONI2 0xc8
> +#define RN5T618_CHGERR_MONI 0xc9
> +#define RN5T618_CHGCTRL_DETMOD1 0xca
> +#define RN5T618_CHGCTRL_DETMOD2 0xcb
> +#define RN5T618_CHGSTAT_DETMOD1 0xcc
> +#define RN5T618_CHGSTAT_DETMOD2 0xcd
> +#define RN5T618_CHGSTAT_DETMOD3 0xce
> +#define RN5T618_CHGERR_DETMOD1 0xcf
> +#define RN5T618_CHGERR_DETMOD2 0xd0
> +#define RN5T618_CHGOSCCTL 0xd4
> +#define RN5T618_CHGOSCSCORESET1 0xd5
> +#define RN5T618_CHGOSCSCORESET2 0xd6
> +#define RN5T618_CHGOSCSCORESET3 0xd7
> +#define RN5T618_CHGOSCFREQSET1 0xd8
> +#define RN5T618_CHGOSCFREQSET2 0xd9
> +#define RN5T618_CONTROL 0xe0
> +#define RN5T618_SOC 0xe1
> +#define RN5T618_RE_CAP_H 0xe2
> +#define RN5T618_RE_CAP_L 0xe3
> +#define RN5T618_FA_CAP_H 0xe4
> +#define RN5T618_FA_CAP_L 0xe5
> +#define RN5T618_AGE 0xe6
> +#define RN5T618_TT_EMPTY_H 0xe7
> +#define RN5T618_TT_EMPTY_L 0xe8
> +#define RN5T618_TT_FULL_H 0xe9
> +#define RN5T618_TT_FULL_L 0xea
> +#define RN5T618_VOLTAGE_1 0xeb
> +#define RN5T618_VOLTAGE_0 0xec
> +#define RN5T618_TEMP_1 0xed
> +#define RN5T618_TEMP_0 0xee
> +#define RN5T618_CC_CTRL 0xef
> +#define RN5T618_CC_COUNT2 0xf0
> +#define RN5T618_CC_COUNT1 0xf1
> +#define RN5T618_CC_COUNT0 0xf2
> +#define RN5T618_CC_SUMREG3 0xf3
> +#define RN5T618_CC_SUMREG2 0xf4
> +#define RN5T618_CC_SUMREG1 0xf5
> +#define RN5T618_CC_SUMREG0 0xf6
> +#define RN5T618_CC_OFFREG1 0xf7
> +#define RN5T618_CC_OFFREG0 0xf8
> +#define RN5T618_CC_GAINREG1 0xf9
> +#define RN5T618_CC_GAINREG0 0xfa
> +#define RN5T618_CC_AVEREG1 0xfb
> +#define RN5T618_CC_AVEREG0 0xfc
> +#define RN5T618_MAX_REG 0xfc
> +
> +#define RN5T618_REPCNT_REPWRON BIT(0)
> +#define RN5T618_SLPCNT_SWPWROFF BIT(0)
> +#define RN5T618_WATCHDOG_WDOGEN BIT(2)
> +#define RN5T618_WATCHDOG_WDOGTIM_M (BIT(0) | BIT(1))
> +#define RN5T618_WATCHDOG_WDOGTIM_S 0
> +#define RN5T618_PWRIRQ_IR_WDOG BIT(6)
> +
> +enum {
> + RN5T618_DCDC1,
> + RN5T618_DCDC2,
> + RN5T618_DCDC3,
> + RN5T618_LDO1,
> + RN5T618_LDO2,
> + RN5T618_LDO3,
> + RN5T618_LDO4,
> + RN5T618_LDO5,
> + RN5T618_LDORTC1,
> + RN5T618_LDORTC2,
> + RN5T618_REG_NUM,
> +};
> +
> +struct rn5t618 {
> + struct regmap *regmap;
> +};
> +
> +#endif /* __LINUX_MFD_RN5T618_H */
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH v2 1/4] mfd: Add Ricoh RN5T618 PMIC core driver
@ 2014-09-01 8:26 ` Lee Jones
0 siblings, 0 replies; 16+ messages in thread
From: Lee Jones @ 2014-09-01 8:26 UTC (permalink / raw)
To: Beniamino Galvani
Cc: linux-kernel, Samuel Ortiz, Mark Brown, Liam Girdwood,
Wim Van Sebroeck, Guenter Roeck, linux-watchdog, devicetree,
Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
Grant Likely, Carlo Caione
On Sat, 30 Aug 2014, Beniamino Galvani wrote:
> Ricoh RN5T618 is a power management IC which integrates 3 step-down
> DCDC converters, 7 low-dropout regulators, a Li-ion battery charger,
> fuel gauge, ADC, GPIOs and a watchdog timer.
>
> This commit adds a MFD core driver to support the I2C communication
> with the device.
>
> Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
> ---
> drivers/mfd/Kconfig | 11 +++
> drivers/mfd/Makefile | 1 +
> drivers/mfd/rn5t618.c | 134 +++++++++++++++++++++++++
> include/linux/mfd/rn5t618.h | 228 +++++++++++++++++++++++++++++++++++++++++++
> 4 files changed, 374 insertions(+)
> create mode 100644 drivers/mfd/rn5t618.c
> create mode 100644 include/linux/mfd/rn5t618.h
Applied, thanks.
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 8d5fad2..843da5d 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -582,6 +582,17 @@ config MFD_RC5T583
> Additional drivers must be enabled in order to use the
> different functionality of the device.
>
> +config MFD_RN5T618
> + tristate "Ricoh RN5T5618 PMIC"
> + depends on I2C
> + select MFD_CORE
> + select REGMAP_I2C
> + help
> + Say yes here to add support for the Ricoh RN5T618 PMIC. This
> + driver provides common support for accessing the device,
> + additional drivers must be enabled in order to use the
> + functionality of the device.
> +
> config MFD_SEC_CORE
> bool "SAMSUNG Electronics PMIC Series Support"
> depends on I2C=y
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index f001487..b945899 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -160,6 +160,7 @@ obj-$(CONFIG_MFD_INTEL_MSIC) += intel_msic.o
> obj-$(CONFIG_MFD_PALMAS) += palmas.o
> obj-$(CONFIG_MFD_VIPERBOARD) += viperboard.o
> obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o
> +obj-$(CONFIG_MFD_RN5T618) += rn5t618.o
> obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o
> obj-$(CONFIG_MFD_SYSCON) += syscon.o
> obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o
> diff --git a/drivers/mfd/rn5t618.c b/drivers/mfd/rn5t618.c
> new file mode 100644
> index 0000000..6668571
> --- /dev/null
> +++ b/drivers/mfd/rn5t618.c
> @@ -0,0 +1,134 @@
> +/*
> + * MFD core 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/i2c.h>
> +#include <linux/mfd/core.h>
> +#include <linux/mfd/rn5t618.h>
> +#include <linux/module.h>
> +#include <linux/regmap.h>
> +
> +static const struct mfd_cell rn5t618_cells[] = {
> + { .name = "rn5t618-regulator" },
> + { .name = "rn5t618-wdt" },
> +};
> +
> +static bool rn5t618_volatile_reg(struct device *dev, unsigned int reg)
> +{
> + switch (reg) {
> + case RN5T618_WATCHDOGCNT:
> + case RN5T618_DCIRQ:
> + case RN5T618_ILIMDATAH ... RN5T618_AIN0DATAL:
> + case RN5T618_IR_ADC1 ... RN5T618_IR_ADC3:
> + case RN5T618_IR_GPR:
> + case RN5T618_IR_GPF:
> + case RN5T618_MON_IOIN:
> + case RN5T618_INTMON:
> + return true;
> + default:
> + return false;
> + }
> +}
> +
> +static const struct regmap_config rn5t618_regmap_config = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + .volatile_reg = rn5t618_volatile_reg,
> + .max_register = RN5T618_MAX_REG,
> + .cache_type = REGCACHE_RBTREE,
> +};
> +
> +static struct rn5t618 *rn5t618_pm_power_off;
> +
> +static void rn5t618_power_off(void)
> +{
> + /* disable automatic repower-on */
> + regmap_update_bits(rn5t618_pm_power_off->regmap, RN5T618_REPCNT,
> + RN5T618_REPCNT_REPWRON, 0);
> + /* start power-off sequence */
> + regmap_update_bits(rn5t618_pm_power_off->regmap, RN5T618_SLPCNT,
> + RN5T618_SLPCNT_SWPWROFF, RN5T618_SLPCNT_SWPWROFF);
> +}
> +
> +static int rn5t618_i2c_probe(struct i2c_client *i2c,
> + const struct i2c_device_id *id)
> +{
> + struct rn5t618 *priv;
> + int ret;
> +
> + priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
> + if (!priv)
> + return -ENOMEM;
> +
> + i2c_set_clientdata(i2c, priv);
> +
> + priv->regmap = devm_regmap_init_i2c(i2c, &rn5t618_regmap_config);
> + if (IS_ERR(priv->regmap)) {
> + ret = PTR_ERR(priv->regmap);
> + dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
> + return ret;
> + }
> +
> + ret = mfd_add_devices(&i2c->dev, -1, rn5t618_cells,
> + ARRAY_SIZE(rn5t618_cells), NULL, 0, NULL);
> + if (ret) {
> + dev_err(&i2c->dev, "failed to add sub-devices: %d\n", ret);
> + return ret;
> + }
> +
> + if (!pm_power_off) {
> + rn5t618_pm_power_off = priv;
> + pm_power_off = rn5t618_power_off;
> + }
> +
> + return 0;
> +}
> +
> +static int rn5t618_i2c_remove(struct i2c_client *i2c)
> +{
> + struct rn5t618 *priv = i2c_get_clientdata(i2c);
> +
> + if (priv == rn5t618_pm_power_off) {
> + rn5t618_pm_power_off = NULL;
> + pm_power_off = NULL;
> + }
> +
> + mfd_remove_devices(&i2c->dev);
> + return 0;
> +}
> +
> +static const struct of_device_id rn5t618_of_match[] = {
> + { .compatible = "ricoh,rn5t618" },
> + { }
> +};
> +MODULE_DEVICE_TABLE(of, rn5t618_of_match);
> +
> +static const struct i2c_device_id rn5t618_i2c_id[] = {
> + { }
> +};
> +MODULE_DEVICE_TABLE(i2c, rn5t618_i2c_id);
> +
> +static struct i2c_driver rn5t618_i2c_driver = {
> + .driver = {
> + .name = "rn5t618",
> + .of_match_table = of_match_ptr(rn5t618_of_match),
> + },
> + .probe = rn5t618_i2c_probe,
> + .remove = rn5t618_i2c_remove,
> + .id_table = rn5t618_i2c_id,
> +};
> +
> +module_i2c_driver(rn5t618_i2c_driver);
> +
> +MODULE_AUTHOR("Beniamino Galvani <b.galvani@gmail.com>");
> +MODULE_DESCRIPTION("Ricoh RN5T618 MFD driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/include/linux/mfd/rn5t618.h b/include/linux/mfd/rn5t618.h
> new file mode 100644
> index 0000000..c72d534
> --- /dev/null
> +++ b/include/linux/mfd/rn5t618.h
> @@ -0,0 +1,228 @@
> +/*
> + * MFD core 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/>.
> + */
> +
> +#ifndef __LINUX_MFD_RN5T618_H
> +#define __LINUX_MFD_RN5T618_H
> +
> +#include <linux/regmap.h>
> +
> +#define RN5T618_LSIVER 0x00
> +#define RN5T618_OTPVER 0x01
> +#define RN5T618_IODAC 0x02
> +#define RN5T618_VINDAC 0x03
> +#define RN5T618_CPUCNT 0x06
> +#define RN5T618_PSWR 0x07
> +#define RN5T618_PONHIS 0x09
> +#define RN5T618_POFFHIS 0x0a
> +#define RN5T618_WATCHDOG 0x0b
> +#define RN5T618_WATCHDOGCNT 0x0c
> +#define RN5T618_PWRFUNC 0x0d
> +#define RN5T618_SLPCNT 0x0e
> +#define RN5T618_REPCNT 0x0f
> +#define RN5T618_PWRONTIMSET 0x10
> +#define RN5T618_NOETIMSETCNT 0x11
> +#define RN5T618_PWRIREN 0x12
> +#define RN5T618_PWRIRQ 0x13
> +#define RN5T618_PWRMON 0x14
> +#define RN5T618_PWRIRSEL 0x15
> +#define RN5T618_DC1_SLOT 0x16
> +#define RN5T618_DC2_SLOT 0x17
> +#define RN5T618_DC3_SLOT 0x18
> +#define RN5T618_LDO1_SLOT 0x1b
> +#define RN5T618_LDO2_SLOT 0x1c
> +#define RN5T618_LDO3_SLOT 0x1d
> +#define RN5T618_LDO4_SLOT 0x1e
> +#define RN5T618_LDO5_SLOT 0x1f
> +#define RN5T618_PSO0_SLOT 0x25
> +#define RN5T618_PSO1_SLOT 0x26
> +#define RN5T618_PSO2_SLOT 0x27
> +#define RN5T618_PSO3_SLOT 0x28
> +#define RN5T618_LDORTC1_SLOT 0x2a
> +#define RN5T618_DC1CTL 0x2c
> +#define RN5T618_DC1CTL2 0x2d
> +#define RN5T618_DC2CTL 0x2e
> +#define RN5T618_DC2CTL2 0x2f
> +#define RN5T618_DC3CTL 0x30
> +#define RN5T618_DC3CTL2 0x31
> +#define RN5T618_DC1DAC 0x36
> +#define RN5T618_DC2DAC 0x37
> +#define RN5T618_DC3DAC 0x38
> +#define RN5T618_DC1DAC_SLP 0x3b
> +#define RN5T618_DC2DAC_SLP 0x3c
> +#define RN5T618_DC3DAC_SLP 0x3d
> +#define RN5T618_DCIREN 0x40
> +#define RN5T618_DCIRQ 0x41
> +#define RN5T618_DCIRMON 0x42
> +#define RN5T618_LDOEN1 0x44
> +#define RN5T618_LDOEN2 0x45
> +#define RN5T618_LDODIS 0x46
> +#define RN5T618_LDO1DAC 0x4c
> +#define RN5T618_LDO2DAC 0x4d
> +#define RN5T618_LDO3DAC 0x4e
> +#define RN5T618_LDO4DAC 0x4f
> +#define RN5T618_LDO5DAC 0x50
> +#define RN5T618_LDORTCDAC 0x56
> +#define RN5T618_LDORTC2DAC 0x57
> +#define RN5T618_LDO1DAC_SLP 0x58
> +#define RN5T618_LDO2DAC_SLP 0x59
> +#define RN5T618_LDO3DAC_SLP 0x5a
> +#define RN5T618_LDO4DAC_SLP 0x5b
> +#define RN5T618_LDO5DAC_SLP 0x5c
> +#define RN5T618_ADCCNT1 0x64
> +#define RN5T618_ADCCNT2 0x65
> +#define RN5T618_ADCCNT3 0x66
> +#define RN5T618_ILIMDATAH 0x68
> +#define RN5T618_ILIMDATAL 0x69
> +#define RN5T618_VBATDATAH 0x6a
> +#define RN5T618_VBATDATAL 0x6b
> +#define RN5T618_VADPDATAH 0x6c
> +#define RN5T618_VADPDATAL 0x6d
> +#define RN5T618_VUSBDATAH 0x6e
> +#define RN5T618_VUSBDATAL 0x6f
> +#define RN5T618_VSYSDATAH 0x70
> +#define RN5T618_VSYSDATAL 0x71
> +#define RN5T618_VTHMDATAH 0x72
> +#define RN5T618_VTHMDATAL 0x73
> +#define RN5T618_AIN1DATAH 0x74
> +#define RN5T618_AIN1DATAL 0x75
> +#define RN5T618_AIN0DATAH 0x76
> +#define RN5T618_AIN0DATAL 0x77
> +#define RN5T618_ILIMTHL 0x78
> +#define RN5T618_ILIMTHH 0x79
> +#define RN5T618_VBATTHL 0x7a
> +#define RN5T618_VBATTHH 0x7b
> +#define RN5T618_VADPTHL 0x7c
> +#define RN5T618_VADPTHH 0x7d
> +#define RN5T618_VUSBTHL 0x7e
> +#define RN5T618_VUSBTHH 0x7f
> +#define RN5T618_VSYSTHL 0x80
> +#define RN5T618_VSYSTHH 0x81
> +#define RN5T618_VTHMTHL 0x82
> +#define RN5T618_VTHMTHH 0x83
> +#define RN5T618_AIN1THL 0x84
> +#define RN5T618_AIN1THH 0x85
> +#define RN5T618_AIN0THL 0x86
> +#define RN5T618_AIN0THH 0x87
> +#define RN5T618_EN_ADCIR1 0x88
> +#define RN5T618_EN_ADCIR2 0x89
> +#define RN5T618_EN_ADCIR3 0x8a
> +#define RN5T618_IR_ADC1 0x8c
> +#define RN5T618_IR_ADC2 0x8d
> +#define RN5T618_IR_ADC3 0x8e
> +#define RN5T618_IOSEL 0x90
> +#define RN5T618_IOOUT 0x91
> +#define RN5T618_GPEDGE1 0x92
> +#define RN5T618_GPEDGE2 0x93
> +#define RN5T618_EN_GPIR 0x94
> +#define RN5T618_IR_GPR 0x95
> +#define RN5T618_IR_GPF 0x96
> +#define RN5T618_MON_IOIN 0x97
> +#define RN5T618_GPLED_FUNC 0x98
> +#define RN5T618_INTPOL 0x9c
> +#define RN5T618_INTEN 0x9d
> +#define RN5T618_INTMON 0x9e
> +#define RN5T618_PREVINDAC 0xb0
> +#define RN5T618_BATDAC 0xb1
> +#define RN5T618_CHGCTL1 0xb3
> +#define RN5T618_CHGCTL2 0xb4
> +#define RN5T618_VSYSSET 0xb5
> +#define RN5T618_REGISET1 0xb6
> +#define RN5T618_REGISET2 0xb7
> +#define RN5T618_CHGISET 0xb8
> +#define RN5T618_TIMSET 0xb9
> +#define RN5T618_BATSET1 0xba
> +#define RN5T618_BATSET2 0xbb
> +#define RN5T618_DIESET 0xbc
> +#define RN5T618_CHGSTATE 0xbd
> +#define RN5T618_CHGCTRL_IRFMASK 0xbe
> +#define RN5T618_CHGSTAT_IRFMASK1 0xbf
> +#define RN5T618_CHGSTAT_IRFMASK2 0xc0
> +#define RN5T618_CHGERR_IRFMASK 0xc1
> +#define RN5T618_CHGCTRL_IRR 0xc2
> +#define RN5T618_CHGSTAT_IRR1 0xc3
> +#define RN5T618_CHGSTAT_IRR2 0xc4
> +#define RN5T618_CHGERR_IRR 0xc5
> +#define RN5T618_CHGCTRL_MONI 0xc6
> +#define RN5T618_CHGSTAT_MONI1 0xc7
> +#define RN5T618_CHGSTAT_MONI2 0xc8
> +#define RN5T618_CHGERR_MONI 0xc9
> +#define RN5T618_CHGCTRL_DETMOD1 0xca
> +#define RN5T618_CHGCTRL_DETMOD2 0xcb
> +#define RN5T618_CHGSTAT_DETMOD1 0xcc
> +#define RN5T618_CHGSTAT_DETMOD2 0xcd
> +#define RN5T618_CHGSTAT_DETMOD3 0xce
> +#define RN5T618_CHGERR_DETMOD1 0xcf
> +#define RN5T618_CHGERR_DETMOD2 0xd0
> +#define RN5T618_CHGOSCCTL 0xd4
> +#define RN5T618_CHGOSCSCORESET1 0xd5
> +#define RN5T618_CHGOSCSCORESET2 0xd6
> +#define RN5T618_CHGOSCSCORESET3 0xd7
> +#define RN5T618_CHGOSCFREQSET1 0xd8
> +#define RN5T618_CHGOSCFREQSET2 0xd9
> +#define RN5T618_CONTROL 0xe0
> +#define RN5T618_SOC 0xe1
> +#define RN5T618_RE_CAP_H 0xe2
> +#define RN5T618_RE_CAP_L 0xe3
> +#define RN5T618_FA_CAP_H 0xe4
> +#define RN5T618_FA_CAP_L 0xe5
> +#define RN5T618_AGE 0xe6
> +#define RN5T618_TT_EMPTY_H 0xe7
> +#define RN5T618_TT_EMPTY_L 0xe8
> +#define RN5T618_TT_FULL_H 0xe9
> +#define RN5T618_TT_FULL_L 0xea
> +#define RN5T618_VOLTAGE_1 0xeb
> +#define RN5T618_VOLTAGE_0 0xec
> +#define RN5T618_TEMP_1 0xed
> +#define RN5T618_TEMP_0 0xee
> +#define RN5T618_CC_CTRL 0xef
> +#define RN5T618_CC_COUNT2 0xf0
> +#define RN5T618_CC_COUNT1 0xf1
> +#define RN5T618_CC_COUNT0 0xf2
> +#define RN5T618_CC_SUMREG3 0xf3
> +#define RN5T618_CC_SUMREG2 0xf4
> +#define RN5T618_CC_SUMREG1 0xf5
> +#define RN5T618_CC_SUMREG0 0xf6
> +#define RN5T618_CC_OFFREG1 0xf7
> +#define RN5T618_CC_OFFREG0 0xf8
> +#define RN5T618_CC_GAINREG1 0xf9
> +#define RN5T618_CC_GAINREG0 0xfa
> +#define RN5T618_CC_AVEREG1 0xfb
> +#define RN5T618_CC_AVEREG0 0xfc
> +#define RN5T618_MAX_REG 0xfc
> +
> +#define RN5T618_REPCNT_REPWRON BIT(0)
> +#define RN5T618_SLPCNT_SWPWROFF BIT(0)
> +#define RN5T618_WATCHDOG_WDOGEN BIT(2)
> +#define RN5T618_WATCHDOG_WDOGTIM_M (BIT(0) | BIT(1))
> +#define RN5T618_WATCHDOG_WDOGTIM_S 0
> +#define RN5T618_PWRIRQ_IR_WDOG BIT(6)
> +
> +enum {
> + RN5T618_DCDC1,
> + RN5T618_DCDC2,
> + RN5T618_DCDC3,
> + RN5T618_LDO1,
> + RN5T618_LDO2,
> + RN5T618_LDO3,
> + RN5T618_LDO4,
> + RN5T618_LDO5,
> + RN5T618_LDORTC1,
> + RN5T618_LDORTC2,
> + RN5T618_REG_NUM,
> +};
> +
> +struct rn5t618 {
> + struct regmap *regmap;
> +};
> +
> +#endif /* __LINUX_MFD_RN5T618_H */
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
--
To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in
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^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH v2 4/4] mfd: rn5t618: document device tree bindings
2014-08-30 12:50 ` [PATCH v2 4/4] mfd: rn5t618: document device tree bindings Beniamino Galvani
@ 2014-09-01 8:27 ` Lee Jones
0 siblings, 0 replies; 16+ messages in thread
From: Lee Jones @ 2014-09-01 8:27 UTC (permalink / raw)
To: Beniamino Galvani
Cc: linux-kernel, Samuel Ortiz, Mark Brown, Liam Girdwood,
Wim Van Sebroeck, Guenter Roeck, linux-watchdog, devicetree,
Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
Grant Likely, Carlo Caione
On Sat, 30 Aug 2014, Beniamino Galvani wrote:
> This adds the device tree bindings documentation for Ricoh RN5T618.
>
> Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
> Reviewed-by: Mark Brown <broonie@linaro.org>
> ---
> Documentation/devicetree/bindings/mfd/rn5t618.txt | 36 +++++++++++++++++++++
> 1 file changed, 36 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/rn5t618.txt
Whoops, should have replied to this one instead of the other one
twice.
Applied, thanks.
> diff --git a/Documentation/devicetree/bindings/mfd/rn5t618.txt b/Documentation/devicetree/bindings/mfd/rn5t618.txt
> new file mode 100644
> index 0000000..937785a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/rn5t618.txt
> @@ -0,0 +1,36 @@
> +* Ricoh RN5T618 PMIC
> +
> +Ricoh RN5T618 is a power management IC which integrates 3 step-down
> +DCDC converters, 7 low-dropout regulators, a Li-ion battery charger,
> +fuel gauge, ADC, GPIOs and a watchdog timer. It can be controlled
> +through a I2C interface.
> +
> +Required properties:
> + - compatible: should be "ricoh,rn5t618"
> + - reg: the I2C slave address of the device
> +
> +Sub-nodes:
> + - regulators: the node is required if the regulator functionality is
> + needed. The valid regulator names are: DCDC1, DCDC2, DCDC3, LDO1,
> + LDO2, LDO3, LDO4, LDO5, LDORTC1 and LDORTC2.
> + The common bindings for each individual regulator can be found in:
> + Documentation/devicetree/bindings/regulator/regulator.txt
> +
> +Example:
> +
> + pmic@32 {
> + compatible = "ricoh,rn5t618";
> + reg = <0x32>;
> +
> + regulators {
> + DCDC1 {
> + regulator-min-microvolt = <1050000>;
> + regulator-max-microvolt = <1050000>;
> + };
> +
> + DCDC2 {
> + regulator-min-microvolt = <1175000>;
> + regulator-max-microvolt = <1175000>;
> + };
> + };
> + };
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [PATCH v2 4/4] mfd: rn5t618: document device tree bindings
@ 2014-09-01 8:27 ` Lee Jones
0 siblings, 0 replies; 16+ messages in thread
From: Lee Jones @ 2014-09-01 8:27 UTC (permalink / raw)
To: Beniamino Galvani
Cc: linux-kernel, Samuel Ortiz, Mark Brown, Liam Girdwood,
Wim Van Sebroeck, Guenter Roeck, linux-watchdog, devicetree,
Rob Herring, Pawel Moll, Mark Rutland, Ian Campbell, Kumar Gala,
Grant Likely, Carlo Caione
On Sat, 30 Aug 2014, Beniamino Galvani wrote:
> This adds the device tree bindings documentation for Ricoh RN5T618.
>
> Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
> Reviewed-by: Mark Brown <broonie@linaro.org>
> ---
> Documentation/devicetree/bindings/mfd/rn5t618.txt | 36 +++++++++++++++++++++
> 1 file changed, 36 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/rn5t618.txt
Whoops, should have replied to this one instead of the other one
twice.
Applied, thanks.
> diff --git a/Documentation/devicetree/bindings/mfd/rn5t618.txt b/Documentation/devicetree/bindings/mfd/rn5t618.txt
> new file mode 100644
> index 0000000..937785a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/rn5t618.txt
> @@ -0,0 +1,36 @@
> +* Ricoh RN5T618 PMIC
> +
> +Ricoh RN5T618 is a power management IC which integrates 3 step-down
> +DCDC converters, 7 low-dropout regulators, a Li-ion battery charger,
> +fuel gauge, ADC, GPIOs and a watchdog timer. It can be controlled
> +through a I2C interface.
> +
> +Required properties:
> + - compatible: should be "ricoh,rn5t618"
> + - reg: the I2C slave address of the device
> +
> +Sub-nodes:
> + - regulators: the node is required if the regulator functionality is
> + needed. The valid regulator names are: DCDC1, DCDC2, DCDC3, LDO1,
> + LDO2, LDO3, LDO4, LDO5, LDORTC1 and LDORTC2.
> + The common bindings for each individual regulator can be found in:
> + Documentation/devicetree/bindings/regulator/regulator.txt
> +
> +Example:
> +
> + pmic@32 {
> + compatible = "ricoh,rn5t618";
> + reg = <0x32>;
> +
> + regulators {
> + DCDC1 {
> + regulator-min-microvolt = <1050000>;
> + regulator-max-microvolt = <1050000>;
> + };
> +
> + DCDC2 {
> + regulator-min-microvolt = <1175000>;
> + regulator-max-microvolt = <1175000>;
> + };
> + };
> + };
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
--
To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in
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More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 16+ messages in thread
end of thread, other threads:[~2014-09-01 8:27 UTC | newest]
Thread overview: 16+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-08-30 12:50 [PATCH v2 0/4] Add support for Ricoh RN5T618 PMIC Beniamino Galvani
2014-08-30 12:50 ` Beniamino Galvani
2014-08-30 12:50 ` [PATCH v2 1/4] mfd: Add Ricoh RN5T618 PMIC core driver Beniamino Galvani
2014-08-30 12:50 ` Beniamino Galvani
2014-09-01 8:25 ` Lee Jones
2014-09-01 8:25 ` Lee Jones
2014-09-01 8:25 ` Lee Jones
2014-09-01 8:26 ` Lee Jones
2014-09-01 8:26 ` Lee Jones
2014-08-30 12:50 ` [PATCH v2 2/4] regulator: add driver for Ricoh RN5T618 regulators Beniamino Galvani
2014-08-30 13:11 ` Mark Brown
2014-08-30 12:50 ` [PATCH v2 3/4] watchdog: add driver for Ricoh RN5T618 watchdog Beniamino Galvani
2014-08-31 17:51 ` Guenter Roeck
2014-08-30 12:50 ` [PATCH v2 4/4] mfd: rn5t618: document device tree bindings Beniamino Galvani
2014-09-01 8:27 ` Lee Jones
2014-09-01 8:27 ` Lee Jones
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