From: Stefan Agner stefan.agner@toradex.com
Add device model enabled PMIC driver for Ricoh RN5T567 PMIC used on Colibri iMX7.
Signed-off-by: Stefan Agner stefan.agner@toradex.com Reviewed-by: Simon Glass sjg@chromium.org ---
doc/device-tree-bindings/pmic/rn5t567.txt | 17 +++++ drivers/power/pmic/Kconfig | 8 +++ drivers/power/pmic/Makefile | 1 + drivers/power/pmic/rn5t567.c | 64 +++++++++++++++++ include/power/rn5t567_pmic.h | 113 ++++++++++++++++++++++++++++++ 5 files changed, 203 insertions(+) create mode 100644 doc/device-tree-bindings/pmic/rn5t567.txt create mode 100644 drivers/power/pmic/rn5t567.c create mode 100644 include/power/rn5t567_pmic.h
diff --git a/doc/device-tree-bindings/pmic/rn5t567.txt b/doc/device-tree-bindings/pmic/rn5t567.txt new file mode 100644 index 0000000..e9e6885 --- /dev/null +++ b/doc/device-tree-bindings/pmic/rn5t567.txt @@ -0,0 +1,17 @@ +Ricoh RN5T567 PMIC + +This file describes the binding info for the PMIC driver. + +Required properties: +- compatible: "ricoh,rn5t567" +- reg: depending on strapping, e.g. 0x33 + +With those two properties, the PMIC device can be used to read/write +registers. + +Example: + +rn5t567@33 { + compatible = "ricoh,rn5t567"; + reg = <0x33>; +}; diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig index 69f8d51..13d293a 100644 --- a/drivers/power/pmic/Kconfig +++ b/drivers/power/pmic/Kconfig @@ -127,6 +127,14 @@ config PMIC_S5M8767 driver provides basic register access and sets up the attached regulators if regulator support is enabled.
+config PMIC_RN5T567 + bool "Enable driver for Ricoh RN5T567 PMIC" + depends on DM_PMIC + ---help--- + The RN5T567 is a PMIC with 4 step-down DC/DC converters, 5 LDO + regulators Real-Time Clock and 4 GPIOs. This driver provides + register access only. + config PMIC_TPS65090 bool "Enable driver for Texas Instruments TPS65090 PMIC" depends on DM_PMIC diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile index 52b4f71..37d9eb5 100644 --- a/drivers/power/pmic/Makefile +++ b/drivers/power/pmic/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_DM_PMIC_SANDBOX) += sandbox.o i2c_pmic_emul.o obj-$(CONFIG_PMIC_ACT8846) += act8846.o obj-$(CONFIG_PMIC_PM8916) += pm8916.o obj-$(CONFIG_PMIC_RK808) += rk808.o +obj-$(CONFIG_PMIC_RN5T567) += rn5t567.o obj-$(CONFIG_PMIC_TPS65090) += tps65090.o obj-$(CONFIG_PMIC_S5M8767) += s5m8767.o
diff --git a/drivers/power/pmic/rn5t567.c b/drivers/power/pmic/rn5t567.c new file mode 100644 index 0000000..001e695 --- /dev/null +++ b/drivers/power/pmic/rn5t567.c @@ -0,0 +1,64 @@ +/* + * Copyright (C) 2016 Toradex AG + * Stefan Agner stefan.agner@toradex.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <errno.h> +#include <fdtdec.h> +#include <libfdt.h> +#include <power/rn5t567_pmic.h> +#include <power/pmic.h> + +static int rn5t567_reg_count(struct udevice *dev) +{ + return RN5T567_NUM_OF_REGS; +} + +static int rn5t567_write(struct udevice *dev, uint reg, const uint8_t *buff, + int len) +{ + int ret; + + ret = dm_i2c_write(dev, reg, buff, len); + if (ret) { + debug("write error to device: %p register: %#x!", dev, reg); + return ret; + } + + return 0; +} + +static int rn5t567_read(struct udevice *dev, uint reg, uint8_t *buff, int len) +{ + int ret; + + ret = dm_i2c_read(dev, reg, buff, len); + if (ret) { + debug("read error from device: %p register: %#x!", dev, reg); + return ret; + } + + return 0; +} + +static struct dm_pmic_ops rn5t567_ops = { + .reg_count = rn5t567_reg_count, + .read = rn5t567_read, + .write = rn5t567_write, +}; + +static const struct udevice_id rn5t567_ids[] = { + { .compatible = "ricoh,rn5t567" }, + { } +}; + +U_BOOT_DRIVER(pmic_rn5t567) = { + .name = "rn5t567 pmic", + .id = UCLASS_PMIC, + .of_match = rn5t567_ids, + .ops = &rn5t567_ops, +}; diff --git a/include/power/rn5t567_pmic.h b/include/power/rn5t567_pmic.h new file mode 100644 index 0000000..9ce601f --- /dev/null +++ b/include/power/rn5t567_pmic.h @@ -0,0 +1,113 @@ +/* + * Copyright (C) 2016 Toradex AG + * Stefan Agner stefan.agner@toradex.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#ifndef __RN5T567_PMIC_H_ +#define __RN5T567_PMIC_H_ + +/* RN5T567 registers */ +enum { + RN5T567_LSIVER = 0x00, + RN5T567_OTPVER = 0x01, + RN5T567_IODAC = 0x02, + RN5T567_VINDAC = 0x03, + RN5T567_OUT32KEN = 0x05, + + RN5T567_CPUCNT = 0x06, + + RN5T567_PSWR = 0x07, + RN5T567_PONHIS = 0x09, + RN5T567_POFFHIS = 0x0A, + RN5T567_WATCHDOG = 0x0B, + RN5T567_WATCHDOGCNT = 0x0C, + RN5T567_PWRFUNC = 0x0D, + RN5T567_SLPCNT = 0x0E, + RN5T567_REPCNT = 0x0F, + RN5T567_PWRONTIMSET = 0x10, + RN5T567_NOETIMSETCNT = 0x11, + RN5T567_PWRIREN = 0x12, + RN5T567_PWRIRQ = 0x13, + RN5T567_PWRMON = 0x14, + RN5T567_PWRIRSEL = 0x15, + + RN5T567_DC1_SLOT = 0x16, + RN5T567_DC2_SLOT = 0x17, + RN5T567_DC3_SLOT = 0x18, + RN5T567_DC4_SLOT = 0x19, + + RN5T567_LDO1_SLOT = 0x1B, + RN5T567_LDO2_SLOT = 0x1C, + RN5T567_LDO3_SLOT = 0x1D, + RN5T567_LDO4_SLOT = 0x1E, + RN5T567_LDO5_SLOT = 0x1F, + + RN5T567_PSO0_SLOT = 0x25, + RN5T567_PSO1_SLOT = 0x26, + RN5T567_PSO2_SLOT = 0x27, + RN5T567_PSO3_SLOT = 0x28, + + RN5T567_LDORTC1_SLOT = 0x2A, + + RN5T567_DC1CTL = 0x2C, + RN5T567_DC1CTL2 = 0x2D, + RN5T567_DC2CTL = 0x2E, + RN5T567_DC2CTL2 = 0x2F, + RN5T567_DC3CTL = 0x30, + RN5T567_DC3CTL2 = 0x31, + RN5T567_DC4CTL = 0x32, + RN5T567_DC4CTL2 = 0x33, + + RN5T567_DC1DAC = 0x36, + RN5T567_DC2DAC = 0x37, + RN5T567_DC3DAC = 0x38, + RN5T567_DC4DAC = 0x39, + + RN5T567_DC1DAC_SLP = 0x3B, + RN5T567_DC2DAC_SLP = 0x3C, + RN5T567_DC3DAC_SLP = 0x3D, + RN5T567_DC4DAC_SLP = 0x3E, + + RN5T567_DCIREN = 0x40, + RN5T567_DCIRQ = 0x41, + RN5T567_DCIRMON = 0x42, + + RN5T567_LDOEN1 = 0x44, + RN5T567_LDOEN2 = 0x45, + RN5T567_LDODIS1 = 0x46, + + RN5T567_LDO1DAC = 0x4C, + RN5T567_LDO2DAC = 0x4D, + RN5T567_LDO3DAC = 0x4E, + RN5T567_LDO4DAC = 0x4F, + RN5T567_LDO5DAC = 0x50, + + RN5T567_LDORTC1DAC = 0x56, + RN5T567_LDORTC2DAC = 0x57, + + RN5T567_LDO1DAC_SLP = 0x58, + RN5T567_LDO2DAC_SLP = 0x59, + RN5T567_LDO3DAC_SLP = 0x5A, + RN5T567_LDO4DAC_SLP = 0x5B, + RN5T567_LDO5DAC_SLP = 0x5C, + + RN5T567_IOSEL = 0x90, + RN5T567_IOOUT = 0x91, + RN5T567_GPEDGE1 = 0x92, + RN5T567_EN_GPIR = 0x94, + RN5T567_IR_GPR = 0x95, + RN5T567_IR_GPF = 0x96, + RN5T567_MON_IOIN = 0x97, + RN5T567_GPLED_FUNC = 0x98, + RN5T567_INTPOL = 0x9C, + RN5T567_INTEN = 0x9D, + RN5T567_INTMON = 0x9E, + + RN5T567_PREVINDAC = 0xB0, + RN5T567_OVTEMP = 0xBC, + + RN5T567_NUM_OF_REGS = 0xBF, +}; + +#endif