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power: Add new PMIC PCA9450 driver
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>
This commit is contained in:
Ye Li
Stefano Babic
parent
c86987d067
commit
22172f6b7f
5 changed files with 212 additions and 0 deletions
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@ -77,6 +77,13 @@ config DM_PMIC_FAN53555
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The driver implements read/write operations for use with the FAN53555
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regulator driver and binds the regulator driver to its node.
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config DM_PMIC_PCA9450
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bool "Enable Driver Model for PMIC PCA9450"
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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 PCA9450. 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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@ -10,6 +10,7 @@ obj-$(CONFIG_DM_PMIC_MAX8998) += max8998.o
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obj-$(CONFIG_DM_PMIC_MC34708) += mc34708.o
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obj-$(CONFIG_$(SPL_)DM_PMIC_BD71837) += bd71837.o
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obj-$(CONFIG_$(SPL_)DM_PMIC_PFUZE100) += pfuze100.o
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obj-$(CONFIG_$(SPL_)DM_PMIC_PCA9450) += pca9450.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-$(CONFIG_PMIC_ACT8846) += act8846.o
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@ -31,6 +32,7 @@ obj-$(CONFIG_POWER_MAX77696) += pmic_max77696.o
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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_PCA9450) += pmic_pca9450.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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93
drivers/power/pmic/pca9450.c
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93
drivers/power/pmic/pca9450.c
Normal file
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@ -0,0 +1,93 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2019 NXP
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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/pca9450.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 = PCA9450_REGULATOR_DRIVER},
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/* ldo */
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{ .prefix = "l", .driver = PCA9450_REGULATOR_DRIVER},
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{ },
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};
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static int pca9450_reg_count(struct udevice *dev)
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{
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return PCA9450_REG_NUM;
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}
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static int pca9450_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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pr_err("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 pca9450_read(struct udevice *dev, uint reg, uint8_t *buff,
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int len)
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{
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if (dm_i2c_read(dev, reg, buff, len)) {
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pr_err("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 pca9450_bind(struct udevice *dev)
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{
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int children;
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ofnode regulators_node;
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regulators_node = dev_read_subnode(dev, "regulators");
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if (!ofnode_valid(regulators_node)) {
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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,
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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 pca9450_ops = {
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.reg_count = pca9450_reg_count,
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.read = pca9450_read,
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.write = pca9450_write,
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};
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static const struct udevice_id pca9450_ids[] = {
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{ .compatible = "nxp,pca9450a", .data = 0x35, },
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{ .compatible = "nxp,pca9450b", .data = 0x25, },
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{ }
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};
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U_BOOT_DRIVER(pmic_pca9450) = {
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.name = "pca9450 pmic",
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.id = UCLASS_PMIC,
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.of_match = pca9450_ids,
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.bind = pca9450_bind,
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.ops = &pca9450_ops,
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};
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50
drivers/power/pmic/pmic_pca9450.c
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50
drivers/power/pmic/pmic_pca9450.c
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@ -0,0 +1,50 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2019 NXP
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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/pca9450.h>
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static const char pca9450_name[] = "PCA9450";
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int power_pca9450a_init(unsigned char bus)
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{
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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 = pca9450_name;
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p->interface = PMIC_I2C;
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p->number_of_regs = PCA9450_REG_NUM;
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p->hw.i2c.addr = 0x35;
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p->hw.i2c.tx_num = 1;
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p->bus = bus;
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return 0;
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}
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int power_pca9450b_init(unsigned char bus)
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{
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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 = pca9450_name;
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p->interface = PMIC_I2C;
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p->number_of_regs = PCA9450_REG_NUM;
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p->hw.i2c.addr = 0x25;
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p->hw.i2c.tx_num = 1;
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p->bus = bus;
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return 0;
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}
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60
include/power/pca9450.h
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60
include/power/pca9450.h
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@ -0,0 +1,60 @@
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/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright 2019 NXP
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*/
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#ifndef PCA9450_H_
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#define PCA9450_H_
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#define PCA9450_REGULATOR_DRIVER "pca9450_regulator"
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enum {
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PCA9450_REG_DEV_ID = 0x00,
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PCA9450_INT1 = 0x01,
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PCA9450_INT1_MSK = 0x02,
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PCA9450_STATUS1 = 0x03,
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PCA9450_STATUS2 = 0x04,
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PCA9450_PWRON_STAT = 0x05,
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PCA9450_SW_RST = 0x06,
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PCA9450_PWR_CTRL = 0x07,
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PCA9450_RESET_CTRL = 0x08,
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PCA9450_CONFIG1 = 0x09,
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PCA9450_CONFIG2 = 0x0A,
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PCA9450_BUCK123_DVS = 0x0C,
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PCA9450_BUCK1OUT_LIMIT = 0x0D,
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PCA9450_BUCK2OUT_LIMIT = 0x0E,
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PCA9450_BUCK3OUT_LIMIT = 0x0F,
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PCA9450_BUCK1CTRL = 0x10,
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PCA9450_BUCK1OUT_DVS0 = 0x11,
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PCA9450_BUCK1OUT_DVS1 = 0x12,
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PCA9450_BUCK2CTRL = 0x13,
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PCA9450_BUCK2OUT_DVS0 = 0x14,
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PCA9450_BUCK2OUT_DVS1 = 0x15,
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PCA9450_BUCK3CTRL = 0x16,
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PCA9450_BUCK3OUT_DVS0 = 0x17,
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PCA9450_BUCK3OUT_DVS1 = 0x18,
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PCA9450_BUCK4CTRL = 0x19,
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PCA9450_BUCK4OUT = 0x1A,
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PCA9450_BUCK5CTRL = 0x1B,
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PCA9450_BUCK5OUT = 0x1C,
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PCA9450_BUCK6CTRL = 0x1D,
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PCA9450_BUCK6OUT = 0x1E,
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PCA9450_LDO_AD_CTRL = 0x20,
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PCA9450_LDO1CTRL = 0x21,
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PCA9450_LDO2CTRL = 0x22,
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PCA9450_LDO3CTRL = 0x23,
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PCA9450_LDO4CTRL = 0x24,
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PCA9450_LDO5CTRL_L = 0x25,
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PCA9450_LDO5CTRL_H = 0x26,
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PCA9450_LOADSW_CTRL = 0x2A,
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PCA9450_VRFLT1_STS = 0x2B,
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PCA9450_VRFLT2_STS = 0x2C,
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PCA9450_VRFLT1_MASK = 0x2D,
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PCA9450_VRFLT2_MASK = 0x2E,
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PCA9450_REG_NUM,
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};
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int power_pca9450a_init(unsigned char bus);
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int power_pca9450b_init(unsigned char bus);
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#endif
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