[U-Boot] [PATCH 07/10] power: pmic: add Ricoh RN5T567 PMIC support
Stefan Agner
stefan at agner.ch
Tue Jul 26 08:22:30 CEST 2016
From: Stefan Agner <stefan.agner at toradex.com>
Add device model enabled PMIC driver for Ricoh RN5T567 PMIC used
on Colibri iMX7.
Signed-off-by: Stefan Agner <stefan.agner at toradex.com>
---
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 | 115 ++++++++++++++++++++++++++++++
5 files changed, 205 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 at 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 at 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..aa3b083
--- /dev/null
+++ b/include/power/rn5t567_pmic.h
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2016 Toradex AG
+ * Stefan Agner <stefan.agner at 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,
+};
+
+int power_rn5t567_init(unsigned char bus);
+
+#endif
--
2.9.0
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