https://source.codeaurora.org/external/imx/uboot-imx
cherry picked, styled and merged commits: - MLK-18387 pmic: Add pmic driver for BD71837: e9a3bec2e95a - MLK-18590 pmic: bd71837: Change to use new fdt API: acdc5c297a96
Signed-off-by: Ye Li ye.li@nxp.com Signed-off-by: Matti Vaittinen matti.vaittinen@fi.rohmeurope.com --- Changelog v2 => v3 - use pmic_clrsetbits() instead of reg_read and reg_write - remove unnecessary include
drivers/power/pmic/Kconfig | 7 +++ drivers/power/pmic/Makefile | 1 + drivers/power/pmic/bd71837.c | 89 ++++++++++++++++++++++++++++++++++++ include/power/bd71837.h | 62 +++++++++++++++++++++++++ 4 files changed, 159 insertions(+) create mode 100644 drivers/power/pmic/bd71837.c create mode 100644 include/power/bd71837.h
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig index 8cf60ebcf3..e154d0a57b 100644 --- a/drivers/power/pmic/Kconfig +++ b/drivers/power/pmic/Kconfig @@ -48,6 +48,13 @@ config PMIC_AS3722 interface and is designs to cover most of the power managementment required for a tablets or laptop.
+config DM_PMIC_BD71837 + bool "Enable Driver Model for PMIC BD71837" + depends on DM_PMIC + help + This config enables implementation of driver-model pmic uclass features + for PMIC BD71837. The driver implements read/write operations. + config DM_PMIC_FAN53555 bool "Enable support for OnSemi FAN53555" depends on DM_PMIC && DM_REGULATOR && DM_I2C diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile index 637352ab2b..e605a88196 100644 --- a/drivers/power/pmic/Makefile +++ b/drivers/power/pmic/Makefile @@ -8,6 +8,7 @@ obj-$(CONFIG_DM_PMIC_FAN53555) += fan53555.o obj-$(CONFIG_DM_PMIC_MAX77686) += max77686.o obj-$(CONFIG_DM_PMIC_MAX8998) += max8998.o obj-$(CONFIG_DM_PMIC_MC34708) += mc34708.o +obj-$(CONFIG_$(SPL_)DM_PMIC_BD71837) += bd71837.o obj-$(CONFIG_$(SPL_)DM_PMIC_PFUZE100) += pfuze100.o obj-$(CONFIG_PMIC_S2MPS11) += s2mps11.o obj-$(CONFIG_DM_PMIC_SANDBOX) += sandbox.o i2c_pmic_emul.o diff --git a/drivers/power/pmic/bd71837.c b/drivers/power/pmic/bd71837.c new file mode 100644 index 0000000000..24d9f7fab7 --- /dev/null +++ b/drivers/power/pmic/bd71837.c @@ -0,0 +1,89 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2018 NXP + */ + +#include <common.h> +#include <errno.h> +#include <dm.h> +#include <i2c.h> +#include <power/pmic.h> +#include <power/regulator.h> +#include <power/bd71837.h> + +DECLARE_GLOBAL_DATA_PTR; + +static const struct pmic_child_info pmic_children_info[] = { + /* buck */ + { .prefix = "b", .driver = BD71837_REGULATOR_DRIVER}, + /* ldo */ + { .prefix = "l", .driver = BD71837_REGULATOR_DRIVER}, + { }, +}; + +static int bd71837_reg_count(struct udevice *dev) +{ + return BD71837_REG_NUM; +} + +static int bd71837_write(struct udevice *dev, uint reg, const uint8_t *buff, + int len) +{ + if (dm_i2c_write(dev, reg, buff, len)) { + pr_err("write error to device: %p register: %#x!", dev, reg); + return -EIO; + } + + return 0; +} + +static int bd71837_read(struct udevice *dev, uint reg, uint8_t *buff, int len) +{ + if (dm_i2c_read(dev, reg, buff, len)) { + pr_err("read error from device: %p register: %#x!", dev, reg); + return -EIO; + } + + return 0; +} + +static int bd71837_bind(struct udevice *dev) +{ + int children; + ofnode regulators_node; + + regulators_node = dev_read_subnode(dev, "regulators"); + if (!ofnode_valid(regulators_node)) { + debug("%s: %s regulators subnode not found!", __func__, + dev->name); + return -ENXIO; + } + + debug("%s: '%s' - found regulators subnode\n", __func__, dev->name); + + children = pmic_bind_children(dev, regulators_node, pmic_children_info); + if (!children) + debug("%s: %s - no child found\n", __func__, dev->name); + + /* Always return success for this device */ + return 0; +} + +static struct dm_pmic_ops bd71837_ops = { + .reg_count = bd71837_reg_count, + .read = bd71837_read, + .write = bd71837_write, +}; + +static const struct udevice_id bd71837_ids[] = { + { .compatible = "rohm,bd71837", .data = 0x4b, }, + { } +}; + +U_BOOT_DRIVER(pmic_bd71837) = { + .name = "bd71837 pmic", + .id = UCLASS_PMIC, + .of_match = bd71837_ids, + .bind = bd71837_bind, + .ops = &bd71837_ops, +}; diff --git a/include/power/bd71837.h b/include/power/bd71837.h new file mode 100644 index 0000000000..38c69b2b90 --- /dev/null +++ b/include/power/bd71837.h @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* Copyright (C) 2018 ROHM Semiconductors */ + +#ifndef BD71837_H_ +#define BD71837_H_ + +#define BD71837_REGULATOR_DRIVER "bd71837_regulator" + +enum { + BD71837_REV = 0x00, + BD71837_SWRESET = 0x01, + BD71837_I2C_DEV = 0x02, + BD71837_PWRCTRL0 = 0x03, + BD71837_PWRCTRL1 = 0x04, + BD71837_BUCK1_CTRL = 0x05, + BD71837_BUCK2_CTRL = 0x06, + BD71837_BUCK3_CTRL = 0x07, + BD71837_BUCK4_CTRL = 0x08, + BD71837_BUCK5_CTRL = 0x09, + BD71837_BUCK6_CTRL = 0x0a, + BD71837_BUCK7_CTRL = 0x0b, + BD71837_BUCK8_CTRL = 0x0c, + BD71837_BUCK1_VOLT_RUN = 0x0d, + BD71837_BUCK1_VOLT_IDLE = 0x0e, + BD71837_BUCK1_VOLT_SUSP = 0x0f, + BD71837_BUCK2_VOLT_RUN = 0x10, + BD71837_BUCK2_VOLT_IDLE = 0x11, + BD71837_BUCK3_VOLT_RUN = 0x12, + BD71837_BUCK4_VOLT_RUN = 0x13, + BD71837_BUCK5_VOLT = 0x14, + BD71837_BUCK6_VOLT = 0x15, + BD71837_BUCK7_VOLT = 0x16, + BD71837_BUCK8_VOLT = 0x17, + BD71837_LDO1_VOLT = 0x18, + BD71837_LDO2_VOLT = 0x19, + BD71837_LDO3_VOLT = 0x1a, + BD71837_LDO4_VOLT = 0x1b, + BD71837_LDO5_VOLT = 0x1c, + BD71837_LDO6_VOLT = 0x1d, + BD71837_LDO7_VOLT = 0x1e, + BD71837_TRANS_COND0 = 0x1f, + BD71837_TRANS_COND1 = 0x20, + BD71837_VRFAULTEN = 0x21, + BD71837_MVRFLTMASK0 = 0x22, + BD71837_MVRFLTMASK1 = 0x23, + BD71837_MVRFLTMASK2 = 0x24, + BD71837_RCVCFG = 0x25, + BD71837_RCVNUM = 0x26, + BD71837_PWRONCONFIG0 = 0x27, + BD71837_PWRONCONFIG1 = 0x28, + BD71837_RESETSRC = 0x29, + BD71837_MIRQ = 0x2a, + BD71837_IRQ = 0x2b, + BD71837_IN_MON = 0x2c, + BD71837_POW_STATE = 0x2d, + BD71837_OUT32K = 0x2e, + BD71837_REGLOCK = 0x2f, + BD71837_MUXSW_EN = 0x30, + BD71837_REG_NUM, +}; + +#endif