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mfd: rn5t618: Add Ricoh RC5T619 PMIC support

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The Ricoh RN5T567 is from the same family as the Ricoh RN5T618 is,
the differences are:

+ DCDC4/DCDC5
+ LDO7-10
+ Slightly different output voltage/currents
+ 32kHz Output
+ RTC
+ USB Charger detection

Signed-off-by: Pierre-Hugues Husson <phh@phh.me>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Pierre-Hugues Husson 2016-11-05 17:19:24 +01:00 committed by Lee Jones
parent 34d9030b5d
commit c5e589a171
4 changed files with 22 additions and 7 deletions
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16
Documentation/devicetree/bindings/mfd/rn5t618.txt
View File

@ -1,21 +1,25 @@
* Ricoh RN5T567/RN5T618 PMIC
Ricoh RN5T567/RN5T618 is a power management IC family which integrates
3 to 4 step-down DCDC converters, 7 low-dropout regulators, GPIOs and
a watchdog timer. The RN5T618 provides additionally a Li-ion battery
charger, fuel gauge and an ADC. It can be controlled through an I2C
interface.
Ricoh RN5T567/RN5T618/RC5T619 is a power management IC family which
integrates 3 to 5 step-down DCDC converters, 7 to 10 low-dropout regulators,
GPIOs, and a watchdog timer. It can be controlled through an I2C interface.
The RN5T618/RC5T619 provides additionally a Li-ion battery charger,
fuel gauge, and an ADC.
The RC5T619 additionnally includes USB charger detection and an RTC.
Required properties:
- compatible: must be one of
"ricoh,rn5t567"
"ricoh,rn5t618"
"ricoh,rc5t619"
- 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, DCDC4
(RN5T567), LDO1, LDO2, LDO3, LDO4, LDO5, LDORTC1 and LDORTC2.
(RN5T567/RC5T619), LDO1, LDO2, LDO3, LDO4, LDO5, LDO6, LDO7, LDO8,
LDO9, LDO10, LDORTC1 and LDORTC2.
LDO7-10 are specific to RC5T619.
The common bindings for each individual regulator can be found in:
Documentation/devicetree/bindings/regulator/regulator.txt

3
drivers/mfd/Kconfig
View File

@ -894,7 +894,8 @@ config MFD_RN5T618
select MFD_CORE
select REGMAP_I2C
help
Say yes here to add support for the Ricoh RN5T567 or R5T618 PMIC.
Say yes here to add support for the Ricoh RN5T567,
RN5T618, RC5T619 PMIC.
This driver provides common support for accessing the device,
additional drivers must be enabled in order to use the
functionality of the device.

1
drivers/mfd/rn5t618.c
View File

@ -87,6 +87,7 @@ static int rn5t618_restart(struct notifier_block *this,
static const struct of_device_id rn5t618_of_match[] = {
{ .compatible = "ricoh,rn5t567", .data = (void *)RN5T567 },
{ .compatible = "ricoh,rn5t618", .data = (void *)RN5T618 },
{ .compatible = "ricoh,rc5t619", .data = (void *)RC5T619 },
{ }
};
MODULE_DEVICE_TABLE(of, rn5t618_of_match);

9
include/linux/mfd/rn5t618.h
View File

@ -58,10 +58,13 @@
#define RN5T618_DC3CTL2 0x31
#define RN5T618_DC4CTL 0x32
#define RN5T618_DC4CTL2 0x33
#define RN5T618_DC5CTL 0x34
#define RN5T618_DC5CTL2 0x35
#define RN5T618_DC1DAC 0x36
#define RN5T618_DC2DAC 0x37
#define RN5T618_DC3DAC 0x38
#define RN5T618_DC4DAC 0x39
#define RN5T618_DC5DAC 0x3a
#define RN5T618_DC1DAC_SLP 0x3b
#define RN5T618_DC2DAC_SLP 0x3c
#define RN5T618_DC3DAC_SLP 0x3d
@ -77,6 +80,11 @@
#define RN5T618_LDO3DAC 0x4e
#define RN5T618_LDO4DAC 0x4f
#define RN5T618_LDO5DAC 0x50
#define RN5T618_LDO6DAC 0x51
#define RN5T618_LDO7DAC 0x52
#define RN5T618_LDO8DAC 0x53
#define RN5T618_LDO9DAC 0x54
#define RN5T618_LDO10DAC 0x55
#define RN5T618_LDORTCDAC 0x56
#define RN5T618_LDORTC2DAC 0x57
#define RN5T618_LDO1DAC_SLP 0x58
@ -231,6 +239,7 @@ enum {
enum {
RN5T567 = 0,
RN5T618,
RC5T619,
};
struct rn5t618 {