* [PATCH v2 0/4] Add support for Ricoh RN5T618 PMIC
@ 2014-08-30 12:50 Beniamino Galvani
[not found] ` <1409403026-28818-1-git-send-email-b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
` (3 more replies)
0 siblings, 4 replies; 10+ 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
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 10+ messages in thread[parent not found: <1409403026-28818-1-git-send-email-b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]
* [PATCH v2 1/4] mfd: Add Ricoh RN5T618 PMIC core driver [not found] ` <1409403026-28818-1-git-send-email-b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> @ 2014-08-30 12:50 ` Beniamino Galvani [not found] ` <1409403026-28818-2-git-send-email-b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 2014-09-01 8:26 ` Lee Jones 0 siblings, 2 replies; 10+ 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 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 10+ messages in thread
[parent not found: <1409403026-28818-2-git-send-email-b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]
* Re: [PATCH v2 1/4] mfd: Add Ricoh RN5T618 PMIC core driver [not found] ` <1409403026-28818-2-git-send-email-b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> @ 2014-09-01 8:25 ` Lee Jones 0 siblings, 0 replies; 10+ 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 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v2 1/4] mfd: Add Ricoh RN5T618 PMIC core driver 2014-08-30 12:50 ` [PATCH v2 1/4] mfd: Add Ricoh RN5T618 PMIC core driver Beniamino Galvani [not found] ` <1409403026-28818-2-git-send-email-b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> @ 2014-09-01 8:26 ` Lee Jones 1 sibling, 0 replies; 10+ 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] 10+ messages in thread
* [PATCH v2 2/4] regulator: add driver for Ricoh RN5T618 regulators 2014-08-30 12:50 [PATCH v2 0/4] Add support for Ricoh RN5T618 PMIC Beniamino Galvani [not found] ` <1409403026-28818-1-git-send-email-b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> @ 2014-08-30 12:50 ` 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 2014-08-30 12:50 ` [PATCH v2 4/4] mfd: rn5t618: document device tree bindings Beniamino Galvani 3 siblings, 1 reply; 10+ 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] 10+ 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; 10+ 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] 10+ messages in thread
* [PATCH v2 3/4] watchdog: add driver for Ricoh RN5T618 watchdog 2014-08-30 12:50 [PATCH v2 0/4] Add support for Ricoh RN5T618 PMIC Beniamino Galvani [not found] ` <1409403026-28818-1-git-send-email-b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 2014-08-30 12:50 ` [PATCH v2 2/4] regulator: add driver for Ricoh RN5T618 regulators Beniamino Galvani @ 2014-08-30 12:50 ` 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 3 siblings, 1 reply; 10+ 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] 10+ 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; 10+ 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] 10+ messages in thread
* [PATCH v2 4/4] mfd: rn5t618: document device tree bindings 2014-08-30 12:50 [PATCH v2 0/4] Add support for Ricoh RN5T618 PMIC Beniamino Galvani ` (2 preceding siblings ...) 2014-08-30 12:50 ` [PATCH v2 3/4] watchdog: add driver for Ricoh RN5T618 watchdog Beniamino Galvani @ 2014-08-30 12:50 ` Beniamino Galvani 2014-09-01 8:27 ` Lee Jones 3 siblings, 1 reply; 10+ 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] 10+ 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; 10+ 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] 10+ messages in thread
end of thread, other threads:[~2014-09-01 8:27 UTC | newest]
Thread overview: 10+ 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
[not found] ` <1409403026-28818-1-git-send-email-b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-08-30 12:50 ` [PATCH v2 1/4] mfd: Add Ricoh RN5T618 PMIC core driver Beniamino Galvani
[not found] ` <1409403026-28818-2-git-send-email-b.galvani-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-09-01 8:25 ` 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
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for NNTP newsgroup(s).