From: Ye Li ye.li@nxp.com
PCA9450 PMIC series is used to support iMX8MM (PCA9450A) and iMX8MN (PCA9450B). Add the PMIC driver for both PCA9450A and PCA9450B.
Signed-off-by: Robin Gong yibin.gong@nxp.com Signed-off-by: Ye Li ye.li@nxp.com Signed-off-by: Peng Fan peng.fan@nxp.com --- drivers/power/pmic/Kconfig | 7 +++ drivers/power/pmic/Makefile | 2 + drivers/power/pmic/pca9450.c | 93 +++++++++++++++++++++++++++++++++++++++ drivers/power/pmic/pmic_pca9450.c | 50 +++++++++++++++++++++ include/power/pca9450.h | 60 +++++++++++++++++++++++++ 5 files changed, 212 insertions(+) create mode 100644 drivers/power/pmic/pca9450.c create mode 100644 drivers/power/pmic/pmic_pca9450.c create mode 100644 include/power/pca9450.h
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig index b4bf018674..df9372c239 100644 --- a/drivers/power/pmic/Kconfig +++ b/drivers/power/pmic/Kconfig @@ -77,6 +77,13 @@ config DM_PMIC_FAN53555 The driver implements read/write operations for use with the FAN53555 regulator driver and binds the regulator driver to its node.
+config DM_PMIC_PCA9450 + bool "Enable Driver Model for PMIC PCA9450" + depends on DM_PMIC + help + This config enables implementation of driver-model pmic uclass features + for PMIC PCA9450. The driver implements read/write operations. + config DM_PMIC_PFUZE100 bool "Enable Driver Model for PMIC PFUZE100" depends on DM_PMIC diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile index ec64327805..7b6cb0ee1b 100644 --- a/drivers/power/pmic/Makefile +++ b/drivers/power/pmic/Makefile @@ -10,6 +10,7 @@ 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-$(CONFIG_$(SPL_)DM_PMIC_PCA9450) += pca9450.o obj-$(CONFIG_PMIC_S2MPS11) += s2mps11.o obj-$(CONFIG_DM_PMIC_SANDBOX) += sandbox.o i2c_pmic_emul.o obj-$(CONFIG_PMIC_ACT8846) += act8846.o @@ -31,6 +32,7 @@ obj-$(CONFIG_POWER_MAX77696) += pmic_max77696.o obj-$(CONFIG_POWER_MAX8998) += pmic_max8998.o obj-$(CONFIG_POWER_MAX8997) += pmic_max8997.o obj-$(CONFIG_POWER_MUIC_MAX8997) += muic_max8997.o +obj-$(CONFIG_POWER_PCA9450) += pmic_pca9450.o obj-$(CONFIG_POWER_PFUZE100) += pmic_pfuze100.o obj-$(CONFIG_POWER_PFUZE3000) += pmic_pfuze3000.o obj-$(CONFIG_POWER_TPS65217) += pmic_tps65217.o diff --git a/drivers/power/pmic/pca9450.c b/drivers/power/pmic/pca9450.c new file mode 100644 index 0000000000..77986c47d7 --- /dev/null +++ b/drivers/power/pmic/pca9450.c @@ -0,0 +1,93 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2019 NXP + */ + +#include <common.h> +#include <fdtdec.h> +#include <errno.h> +#include <dm.h> +#include <i2c.h> +#include <power/pmic.h> +#include <power/regulator.h> +#include <power/pca9450.h> + +DECLARE_GLOBAL_DATA_PTR; + +static const struct pmic_child_info pmic_children_info[] = { + /* buck */ + { .prefix = "b", .driver = PCA9450_REGULATOR_DRIVER}, + /* ldo */ + { .prefix = "l", .driver = PCA9450_REGULATOR_DRIVER}, + { }, +}; + +static int pca9450_reg_count(struct udevice *dev) +{ + return PCA9450_REG_NUM; +} + +static int pca9450_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 pca9450_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 pca9450_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 pca9450_ops = { + .reg_count = pca9450_reg_count, + .read = pca9450_read, + .write = pca9450_write, +}; + +static const struct udevice_id pca9450_ids[] = { + { .compatible = "nxp,pca9450a", .data = 0x35, }, + { .compatible = "nxp,pca9450b", .data = 0x25, }, + { } +}; + +U_BOOT_DRIVER(pmic_pca9450) = { + .name = "pca9450 pmic", + .id = UCLASS_PMIC, + .of_match = pca9450_ids, + .bind = pca9450_bind, + .ops = &pca9450_ops, +}; diff --git a/drivers/power/pmic/pmic_pca9450.c b/drivers/power/pmic/pmic_pca9450.c new file mode 100644 index 0000000000..67a9090200 --- /dev/null +++ b/drivers/power/pmic/pmic_pca9450.c @@ -0,0 +1,50 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2019 NXP + */ + +#include <common.h> +#include <errno.h> +#include <i2c.h> +#include <power/pmic.h> +#include <power/pca9450.h> + +static const char pca9450_name[] = "PCA9450"; + +int power_pca9450a_init(unsigned char bus) +{ + struct pmic *p = pmic_alloc(); + + if (!p) { + printf("%s: POWER allocation error!\n", __func__); + return -ENOMEM; + } + + p->name = pca9450_name; + p->interface = PMIC_I2C; + p->number_of_regs = PCA9450_REG_NUM; + p->hw.i2c.addr = 0x35; + p->hw.i2c.tx_num = 1; + p->bus = bus; + + return 0; +} + +int power_pca9450b_init(unsigned char bus) +{ + struct pmic *p = pmic_alloc(); + + if (!p) { + printf("%s: POWER allocation error!\n", __func__); + return -ENOMEM; + } + + p->name = pca9450_name; + p->interface = PMIC_I2C; + p->number_of_regs = PCA9450_REG_NUM; + p->hw.i2c.addr = 0x25; + p->hw.i2c.tx_num = 1; + p->bus = bus; + + return 0; +} diff --git a/include/power/pca9450.h b/include/power/pca9450.h new file mode 100644 index 0000000000..5d4f58ca44 --- /dev/null +++ b/include/power/pca9450.h @@ -0,0 +1,60 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright 2019 NXP + */ + +#ifndef PCA9450_H_ +#define PCA9450_H_ + +#define PCA9450_REGULATOR_DRIVER "pca9450_regulator" + +enum { + PCA9450_REG_DEV_ID = 0x00, + PCA9450_INT1 = 0x01, + PCA9450_INT1_MSK = 0x02, + PCA9450_STATUS1 = 0x03, + PCA9450_STATUS2 = 0x04, + PCA9450_PWRON_STAT = 0x05, + PCA9450_SW_RST = 0x06, + PCA9450_PWR_CTRL = 0x07, + PCA9450_RESET_CTRL = 0x08, + PCA9450_CONFIG1 = 0x09, + PCA9450_CONFIG2 = 0x0A, + PCA9450_BUCK123_DVS = 0x0C, + PCA9450_BUCK1OUT_LIMIT = 0x0D, + PCA9450_BUCK2OUT_LIMIT = 0x0E, + PCA9450_BUCK3OUT_LIMIT = 0x0F, + PCA9450_BUCK1CTRL = 0x10, + PCA9450_BUCK1OUT_DVS0 = 0x11, + PCA9450_BUCK1OUT_DVS1 = 0x12, + PCA9450_BUCK2CTRL = 0x13, + PCA9450_BUCK2OUT_DVS0 = 0x14, + PCA9450_BUCK2OUT_DVS1 = 0x15, + PCA9450_BUCK3CTRL = 0x16, + PCA9450_BUCK3OUT_DVS0 = 0x17, + PCA9450_BUCK3OUT_DVS1 = 0x18, + PCA9450_BUCK4CTRL = 0x19, + PCA9450_BUCK4OUT = 0x1A, + PCA9450_BUCK5CTRL = 0x1B, + PCA9450_BUCK5OUT = 0x1C, + PCA9450_BUCK6CTRL = 0x1D, + PCA9450_BUCK6OUT = 0x1E, + PCA9450_LDO_AD_CTRL = 0x20, + PCA9450_LDO1CTRL = 0x21, + PCA9450_LDO2CTRL = 0x22, + PCA9450_LDO3CTRL = 0x23, + PCA9450_LDO4CTRL = 0x24, + PCA9450_LDO5CTRL_L = 0x25, + PCA9450_LDO5CTRL_H = 0x26, + PCA9450_LOADSW_CTRL = 0x2A, + PCA9450_VRFLT1_STS = 0x2B, + PCA9450_VRFLT2_STS = 0x2C, + PCA9450_VRFLT1_MASK = 0x2D, + PCA9450_VRFLT2_MASK = 0x2E, + PCA9450_REG_NUM, +}; + +int power_pca9450a_init(unsigned char bus); +int power_pca9450b_init(unsigned char bus); + +#endif