MLK-18387 pmic: Add pmic driver for BD71837
The iMX8MM EVK board uses BD71837MWV pmic. Add its driver to u-boot. Signed-off-by: Ye Li <ye.li@nxp.com>
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Ye Li
parent
f3d2fba818
commit
e9a3bec2e9
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@ -48,6 +48,13 @@ config PMIC_AS3722
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interface and is designs to cover most of the power managementment
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required for a tablets or laptop.
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config DM_PMIC_BD71837
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bool "Enable Driver Model for PMIC BD71837"
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depends on DM_PMIC
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help
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This config enables implementation of driver-model pmic uclass features
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for PMIC BD71837. The driver implements read/write operations.
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config DM_PMIC_PFUZE100
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bool "Enable Driver Model for PMIC PFUZE100"
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depends on DM_PMIC
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@ -9,6 +9,7 @@ obj-$(CONFIG_$(SPL_)DM_PMIC) += pmic-uclass.o
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obj-$(CONFIG_DM_PMIC_MAX77686) += max77686.o
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obj-$(CONFIG_DM_PMIC_MAX8998) += max8998.o
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obj-$(CONFIG_$(SPL_)DM_PMIC_PFUZE100) += pfuze100.o
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obj-$(CONFIG_$(SPL_)DM_PMIC_BD71837) += bd71837.o
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obj-$(CONFIG_PMIC_S2MPS11) += s2mps11.o
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obj-$(CONFIG_DM_PMIC_SANDBOX) += sandbox.o i2c_pmic_emul.o
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obj-$(CONFIG_PMIC_ACT8846) += act8846.o
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@ -30,6 +31,7 @@ obj-$(CONFIG_POWER_MAX8998) += pmic_max8998.o
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obj-$(CONFIG_POWER_MAX8997) += pmic_max8997.o
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obj-$(CONFIG_POWER_MUIC_MAX8997) += muic_max8997.o
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obj-$(CONFIG_POWER_MAX77686) += pmic_max77686.o
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obj-$(CONFIG_POWER_BD71837) += pmic_bd71837.o
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obj-$(CONFIG_POWER_PFUZE100) += pmic_pfuze100.o
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obj-$(CONFIG_POWER_PFUZE3000) += pmic_pfuze3000.o
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obj-$(CONFIG_POWER_TPS65217) += pmic_tps65217.o
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@ -0,0 +1,92 @@
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/*
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* Copyright 2018 NXP *
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <fdtdec.h>
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#include <errno.h>
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#include <dm.h>
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#include <i2c.h>
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#include <power/pmic.h>
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#include <power/regulator.h>
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#include <power/bd71837.h>
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DECLARE_GLOBAL_DATA_PTR;
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static const struct pmic_child_info pmic_children_info[] = {
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/* buck */
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{ .prefix = "b", .driver = BD71837_REGULATOR_DRIVER},
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/* ldo */
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{ .prefix = "l", .driver = BD71837_REGULATOR_DRIVER},
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{ },
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};
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static int bd71837_reg_count(struct udevice *dev)
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{
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return BD71837_REG_NUM;
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}
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static int bd71837_write(struct udevice *dev, uint reg, const uint8_t *buff,
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int len)
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{
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if (dm_i2c_write(dev, reg, buff, len)) {
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error("write error to device: %p register: %#x!", dev, reg);
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return -EIO;
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}
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return 0;
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}
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static int bd71837_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
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{
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if (dm_i2c_read(dev, reg, buff, len)) {
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error("read error from device: %p register: %#x!", dev, reg);
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return -EIO;
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}
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return 0;
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}
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static int bd71837_bind(struct udevice *dev)
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{
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int children;
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int regulators_node;
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const void *blob = gd->fdt_blob;
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regulators_node = fdt_subnode_offset(blob, dev_of_offset(dev),
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"regulators");
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if (regulators_node <= 0) {
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debug("%s: %s regulators subnode not found!", __func__,
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dev->name);
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return -ENXIO;
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}
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debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
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children = pmic_bind_children(dev, regulators_node, pmic_children_info);
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if (!children)
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debug("%s: %s - no child found\n", __func__, dev->name);
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/* Always return success for this device */
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return 0;
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}
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static struct dm_pmic_ops bd71837_ops = {
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.reg_count = bd71837_reg_count,
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.read = bd71837_read,
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.write = bd71837_write,
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};
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static const struct udevice_id bd71837_ids[] = {
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{ .compatible = "rohm,bd71837", .data = 0x4b, },
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{ }
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};
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U_BOOT_DRIVER(pmic_bd71837) = {
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.name = "bd71837 pmic",
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.id = UCLASS_PMIC,
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.of_match = bd71837_ids,
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.bind = bd71837_bind,
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.ops = &bd71837_ops,
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};
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@ -0,0 +1,33 @@
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/*
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* Copyright (C) 2014 Gateworks Corporation
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* Tim Harvey <tharvey@gateworks.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <errno.h>
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#include <i2c.h>
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#include <power/pmic.h>
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#include <power/bd71837.h>
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static const char bd71837_name[] = "BD71837";
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int power_bd71837_init (unsigned char bus) {
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struct pmic *p = pmic_alloc();
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if (!p) {
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printf("%s: POWER allocation error!\n", __func__);
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return -ENOMEM;
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}
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p->name = bd71837_name;
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p->interface = PMIC_I2C;
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p->number_of_regs = BD71837_REG_NUM;
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p->hw.i2c.addr = 0x4b;
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p->hw.i2c.tx_num = 1;
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p->bus = bus;
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printf("power_bd71837_init\n");
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return 0;
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}
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@ -0,0 +1,62 @@
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#ifndef BD71837_H_
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#define BD71837_H_
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#define BD71837_REGULATOR_DRIVER "bd71837_regulator"
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enum {
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BD71837_REV = 0x00,
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BD71837_SWRESET = 0x01,
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BD71837_I2C_DEV = 0x02,
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BD71837_PWRCTRL0 = 0x03,
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BD71837_PWRCTRL1 = 0x04,
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BD71837_BUCK1_CTRL = 0x05,
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BD71837_BUCK2_CTRL = 0x06,
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BD71837_BUCK3_CTRL = 0x07,
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BD71837_BUCK4_CTRL = 0x08,
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BD71837_BUCK5_CTRL = 0x09,
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BD71837_BUCK6_CTRL = 0x0A,
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BD71837_BUCK7_CTRL = 0x0B,
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BD71837_BUCK8_CTRL = 0x0C,
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BD71837_BUCK1_VOLT_RUN = 0x0D,
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BD71837_BUCK1_VOLT_IDLE = 0x0E,
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BD71837_BUCK1_VOLT_SUSP = 0x0F,
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BD71837_BUCK2_VOLT_RUN = 0x10,
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BD71837_BUCK2_VOLT_IDLE = 0x11,
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BD71837_BUCK3_VOLT_RUN = 0x12,
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BD71837_BUCK4_VOLT_RUN = 0x13,
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BD71837_BUCK5_VOLT = 0x14,
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BD71837_BUCK6_VOLT = 0x15,
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BD71837_BUCK7_VOLT = 0x16,
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BD71837_BUCK8_VOLT = 0x17,
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BD71837_LDO1_VOLT = 0x18,
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BD71837_LDO2_VOLT = 0x19,
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BD71837_LDO3_VOLT = 0x1A,
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BD71837_LDO4_VOLT = 0x1B,
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BD71837_LDO5_VOLT = 0x1C,
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BD71837_LDO6_VOLT = 0x1D,
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BD71837_LDO7_VOLT = 0x1E,
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BD71837_TRANS_COND0 = 0x1F,
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BD71837_TRANS_COND1 = 0x20,
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BD71837_VRFAULTEN = 0x21,
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BD71837_MVRFLTMASK0 = 0x22,
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BD71837_MVRFLTMASK1 = 0x23,
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BD71837_MVRFLTMASK2 = 0x24,
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BD71837_RCVCFG = 0x25,
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BD71837_RCVNUM = 0x26,
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BD71837_PWRONCONFIG0 = 0x27,
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BD71837_PWRONCONFIG1 = 0x28,
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BD71837_RESETSRC = 0x29,
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BD71837_MIRQ = 0x2A,
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BD71837_IRQ = 0x2B,
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BD71837_IN_MON = 0x2C,
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BD71837_POW_STATE = 0x2D,
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BD71837_OUT32K = 0x2E,
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BD71837_REGLOCK = 0x2F,
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BD71837_MUXSW_EN = 0x30,
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BD71837_REG_NUM,
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};
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int power_bd71837_init(unsigned char bus);
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#endif
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