diff options
Diffstat (limited to 'drivers/power/pmic')
| -rw-r--r-- | drivers/power/pmic/Kconfig | 9 | ||||
| -rw-r--r-- | drivers/power/pmic/Makefile | 1 | ||||
| -rw-r--r-- | drivers/power/pmic/max8907.c | 94 | ||||
| -rw-r--r-- | drivers/power/pmic/rk8xx.c | 2 |
4 files changed, 105 insertions, 1 deletions
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig index 5a61cd45b8c..ec7ccc3a63f 100644 --- a/drivers/power/pmic/Kconfig +++ b/drivers/power/pmic/Kconfig @@ -184,6 +184,15 @@ config SPL_DM_PMIC_PFUZE100 This config enables implementation of driver-model pmic uclass features for PMIC PFUZE100 in SPL. The driver implements read/write operations. +config DM_PMIC_MAX8907 + bool "Enable Driver Model for PMIC MAX8907" + ---help--- + This config enables implementation of driver-model pmic uclass features + for PMIC MAX8907. The driver implements read/write operations. + This is a Power Management IC with a decent set of peripherals from which + 3 DC-to-DC Step-Down (SD) Regulators, 20 Low-Dropout Linear (LDO) Regulators, + Real-Time Clock (RTC) and more with I2C Compatible Interface. + config DM_PMIC_MAX77663 bool "Enable Driver Model for PMIC MAX77663" ---help--- diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile index 2210b1a64ae..6bebffb05a6 100644 --- a/drivers/power/pmic/Makefile +++ b/drivers/power/pmic/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_$(PHASE_)DM_PMIC) += pmic-uclass.o obj-$(CONFIG_$(PHASE_)DM_PMIC_FAN53555) += fan53555.o obj-$(CONFIG_$(PHASE_)DM_PMIC_DA9063) += da9063.o obj-$(CONFIG_$(PHASE_)DM_PMIC_MAX77663) += max77663.o +obj-$(CONFIG_$(PHASE_)DM_PMIC_MAX8907) += max8907.o obj-$(CONFIG_DM_PMIC_MAX77686) += max77686.o obj-$(CONFIG_DM_PMIC_MAX8998) += max8998.o obj-$(CONFIG_DM_PMIC_MC34708) += mc34708.o diff --git a/drivers/power/pmic/max8907.c b/drivers/power/pmic/max8907.c new file mode 100644 index 00000000000..a7ef70177de --- /dev/null +++ b/drivers/power/pmic/max8907.c @@ -0,0 +1,94 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright(C) 2024 Svyatoslav Ryhel <clamor95@gmail.com> + */ + +#include <dm.h> +#include <dm/lists.h> +#include <power/pmic.h> +#include <power/max8907.h> + +static const struct pmic_child_info pmic_children_info[] = { + { .prefix = "ldo", .driver = MAX8907_LDO_DRIVER }, + { .prefix = "sd", .driver = MAX8907_SD_DRIVER }, + { }, +}; + +static int max8907_write(struct udevice *dev, uint reg, const uint8_t *buff, int len) +{ + int ret; + + ret = dm_i2c_write(dev, reg, buff, len); + if (ret) { + log_debug("%s: write error to device: %p register: %#x!\n", + __func__, dev, reg); + return ret; + } + + return 0; +} + +static int max8907_read(struct udevice *dev, uint reg, uint8_t *buff, int len) +{ + int ret; + + ret = dm_i2c_read(dev, reg, buff, len); + if (ret) { + log_debug("%s: read error from device: %p register: %#x!\n", + __func__, dev, reg); + return ret; + } + + return 0; +} + +static int max8907_bind(struct udevice *dev) +{ + ofnode regulators_node; + int children, ret; + + if (IS_ENABLED(CONFIG_SYSRESET_MAX8907) && + dev_read_bool(dev, "maxim,system-power-controller")) { + ret = device_bind_driver_to_node(dev, MAX8907_RST_DRIVER, + "sysreset", dev_ofnode(dev), + NULL); + if (ret) { + log_debug("%s: cannot bind SYSRESET (ret = %d)\n", + __func__, ret); + return ret; + } + } + + regulators_node = dev_read_subnode(dev, "regulators"); + if (!ofnode_valid(regulators_node)) { + log_err("%s regulators subnode not found!\n", dev->name); + return -ENXIO; + } + + log_debug("%s: '%s' - found regulators subnode\n", __func__, dev->name); + + children = pmic_bind_children(dev, regulators_node, pmic_children_info); + if (!children) + log_err("%s - no child found\n", dev->name); + + /* Always return success for this device */ + return 0; +} + +static struct dm_pmic_ops max8907_ops = { + .read = max8907_read, + .write = max8907_write, +}; + +static const struct udevice_id max8907_ids[] = { + { .compatible = "maxim,max8907" }, + { } +}; + +U_BOOT_DRIVER(pmic_max8907) = { + .name = "max8907_pmic", + .id = UCLASS_PMIC, + .of_match = max8907_ids, + .bind = max8907_bind, + .ops = &max8907_ops, +}; diff --git a/drivers/power/pmic/rk8xx.c b/drivers/power/pmic/rk8xx.c index a14555cf472..3bc696d4caa 100644 --- a/drivers/power/pmic/rk8xx.c +++ b/drivers/power/pmic/rk8xx.c @@ -91,7 +91,7 @@ void rk8xx_off_for_plugin(struct udevice *dev) static struct reg_data rk806_init_reg[] = { /* RST_FUN */ - { RK806_REG_SYS_CFG3, GENMASK(7, 6), BIT(7)}, + { RK806_REG_SYS_CFG3, BIT(7), GENMASK(7, 6)}, }; static struct reg_data rk817_init_reg[] = { |