Commit 1c50c3a1 authored by Lothar Felten's avatar Lothar Felten Committed by Carles Cufi
Browse files

drivers: regulator: add support for AXP2101 power management IC 



Add initial support for the AXP2101 power management IC from X-powers.
Remark: only DC/DC1 and ALDO have been tested on real hardware.

Co-authored-by: default avatarTOKITA Hiroshi <tokita.hiroshi@gmail.com>
Co-authored-by: default avatarGerard Marull-Paretas <gerard.marull@nordicsemi.no>

Signed-off-by: default avatarLothar Felten <lothar.felten@gmail.com>
parent 648b5838

boards/m5stack/m5stack_core2/Kconfig.defconfig

+1 −1
Original line number Diff line number Diff line
@@ -14,7 +14,7 @@ config GPIO_HOGS_INIT_PRIORITY 
config MFD_INIT_PRIORITY

	default 70



config REGULATOR_AXP192_INIT_PRIORITY

config REGULATOR_AXP192_AXP2101_INIT_PRIORITY

	default 71



config GPIO_AXP192_INIT_PRIORITY

boards/m5stack/m5stickc_plus/Kconfig.defconfig

+1 −1
Original line number Diff line number Diff line
@@ -11,7 +11,7 @@ config GPIO_HOGS_INIT_PRIORITY 
config MFD_INIT_PRIORITY

	default 70



config REGULATOR_AXP192_INIT_PRIORITY

config REGULATOR_AXP192_AXP2101_INIT_PRIORITY

	default 71



config GPIO_AXP192_INIT_PRIORITY

drivers/mfd/CMakeLists.txt

+1 −1
Original line number Diff line number Diff line
@@ -9,7 +9,7 @@ zephyr_library_sources_ifdef(CONFIG_MFD_NCT38XX mfd_nct38xx.c) 
zephyr_library_sources_ifdef(CONFIG_MFD_NPM1300 mfd_npm1300.c)

zephyr_library_sources_ifdef(CONFIG_MFD_NPM2100 mfd_npm2100.c)

zephyr_library_sources_ifdef(CONFIG_MFD_NPM6001 mfd_npm6001.c)

zephyr_library_sources_ifdef(CONFIG_MFD_AXP192 mfd_axp192.c)

zephyr_library_sources_ifdef(CONFIG_MFD_AXP192_AXP2101 mfd_axp192.c)

zephyr_library_sources_ifdef(CONFIG_MFD_AD559X mfd_ad559x.c)

zephyr_library_sources_ifdef(CONFIG_MFD_AD559X_BUS_I2C mfd_ad559x_i2c.c)

zephyr_library_sources_ifdef(CONFIG_MFD_AD559X_BUS_SPI mfd_ad559x_spi.c)

drivers/mfd/Kconfig.axp192

+4 −4
Original line number Diff line number Diff line 
# Copyright (c) 2023 Martin Kiepfer <mrmarteng@teleschirm.org>

# SPDX-License-Identifier: Apache-2.0



config MFD_AXP192

	bool "AXP192 PMIC multi-function device driver"

config MFD_AXP192_AXP2101

	bool "AXP192/AXP2101 PMIC multi-function device driver"

	default y

	depends on DT_HAS_X_POWERS_AXP192_ENABLED

	depends on DT_HAS_X_POWERS_AXP192_ENABLED || DT_HAS_X_POWERS_AXP2101_ENABLED

	select I2C

	help

	  Enable the X-Powers AXP192 PMIC multi-function device driver
 
	  Enable the X-Powers AXP192/AXP2101 PMIC multi-function device driver

drivers/mfd/mfd_axp192.c

+59 −25
Original line number Diff line number Diff line
@@ -3,8 +3,6 @@ 
 * SPDX-License-Identifier: Apache-2.0

 */



#define DT_DRV_COMPAT x_powers_axp192



#include <errno.h>

#include <stdbool.h>
@@ -15,6 +13,19 @@ 


LOG_MODULE_REGISTER(mfd_axp192, CONFIG_MFD_LOG_LEVEL);



struct mfd_axp192_config {

	struct i2c_dt_spec i2c;

#ifdef CONFIG_DT_HAS_X_POWERS_AXP192_ENABLED

	bool vbusen_disable;

#endif

	uint8_t reg_chip_id;

	uint8_t vbus_config_reg;

	uint8_t chip_id;

	uint8_t val_vbusen_disable;

};



#ifdef CONFIG_DT_HAS_X_POWERS_AXP192_ENABLED



/* Chip ID value */

#define AXP192_CHIP_ID 0x03U
@@ -97,11 +108,6 @@ LOG_MODULE_REGISTER(mfd_axp192, CONFIG_MFD_LOG_LEVEL); 
#define AXP192_GPIO5_OUTPUT_VAL   0x04U

#define AXP192_GPIO5_OUTPUT_SHIFT 3U



struct mfd_axp192_config {

	struct i2c_dt_spec i2c;

	bool vbusen_disable;

};



struct mfd_axp192_data {

	const struct device *gpio_mask_used[AXP192_GPIO_MAX_NUM];

	uint8_t gpio_mask_output;
@@ -139,12 +145,27 @@ const struct mfd_axp192_func_reg_desc gpio_reg_desc[AXP192_GPIO_MAX_NUM] = { 
		.mask = AXP192_GPIO4_FUNC_MASK,

	},

};

#endif /* CONFIG_DT_HAS_X_POWERS_AXP192_ENABLED */



#ifdef CONFIG_DT_HAS_X_POWERS_AXP2101_ENABLED



/* Chip ID value */

#define AXP2101_CHIP_ID		0x4AU



/* Registers definitions */

#define AXP2101_REG_CHIP_ID	0x03U



/* AXP210 GPIO register addresses */

#define AXP2101_VBUS_CFG_REG	0x00U



/* VBUS control reg values */

#define AXP2101_VBUS_CFG_VAL_VBUSEN_DISABLE	0x00U

#endif /* CONFIG_DT_HAS_X_POWERS_AXP2101_ENABLED */



static int mfd_axp192_init(const struct device *dev)

{

	const struct mfd_axp192_config *config = dev->config;

	uint8_t chip_id;

	uint8_t vbus_val;

	int ret;



	LOG_DBG("Initializing instance");
@@ -155,29 +176,29 @@ static int mfd_axp192_init(const struct device *dev) 
	}



	/* Check if axp192 chip is available */

	ret = i2c_reg_read_byte_dt(&config->i2c, AXP192_REG_CHIP_ID, &chip_id);

	ret = i2c_reg_read_byte_dt(&config->i2c, config->reg_chip_id, &chip_id);

	if (ret < 0) {

		return ret;

	}

	if (chip_id != AXP192_CHIP_ID) {

	if (chip_id != config->chip_id) {

		LOG_ERR("Invalid Chip detected (%d)", chip_id);

		return -EINVAL;

	}



#ifdef CONFIG_DT_HAS_X_POWERS_AXP192_ENABLED

	/* Disable N_VBUSEN */

	vbus_val = 0;

	if (config->vbusen_disable) {

		vbus_val = AXP192_VBUS_CFG_VAL_VBUSEN_DISABLE;

	}

	ret = i2c_reg_update_byte_dt(&config->i2c, AXP192_VBUS_CFG_REG,

				     AXP192_VBUS_CFG_VAL_VBUSEN_DISABLE, vbus_val);

	ret = i2c_reg_update_byte_dt(

		&config->i2c, config->vbus_config_reg, config->val_vbusen_disable,

		config->vbusen_disable ? config->val_vbusen_disable : 0);

	if (ret < 0) {

		return ret;

	}

#endif



	return 0;

}



#ifdef CONFIG_DT_HAS_X_POWERS_AXP192_ENABLED

int mfd_axp192_gpio_func_get(const struct device *dev, uint8_t gpio, enum axp192_gpio_func *func)

{

	const struct mfd_axp192_config *config = dev->config;
@@ -605,16 +626,29 @@ int mfd_axp192_gpio_write_port(const struct device *dev, uint8_t value, uint8_t 


	return 0;

}

#endif



#define MFD_AXP192_CONST_CONFIG(model)                                                             \

	.reg_chip_id = AXP##model##_REG_CHIP_ID,                                                   \

	.vbus_config_reg = AXP##model##_VBUS_CFG_REG,                                              \

	.chip_id = AXP##model##_CHIP_ID,                                                           \

	.val_vbusen_disable = AXP##model##_CHIP_ID,



#define MFD_AXP192_DEFINE(inst)                                                                    \

	static const struct mfd_axp192_config config##inst = {                                     \

		.i2c = I2C_DT_SPEC_INST_GET(inst),                                                 \

		.vbusen_disable = DT_INST_PROP_OR(inst, vbusen_disable, false),                    \

#define MFD_AXP192_AXP2101_DEFINE(node, model)                                                     \

	static const struct mfd_axp192_config config##node = {                                     \

		.i2c = I2C_DT_SPEC_GET(node),                                                      \

		IF_ENABLED(CONFIG_DT_HAS_X_POWERS_AXP192_ENABLED,                                  \

		(.vbusen_disable = DT_PROP_OR(node, vbusen_disable, false),))                      \

		MFD_AXP192_CONST_CONFIG(model)                                                     \

	};                                                                                         \

                                                                                                   \

	static struct mfd_axp192_data data##inst;                                                  \

	IF_ENABLED(CONFIG_DT_HAS_X_POWERS_AXP192_ENABLED,                                          \

		   (static struct mfd_axp192_data data##node;))                                    \

                                                                                                   \

	DEVICE_DT_INST_DEFINE(inst, mfd_axp192_init, NULL, &data##inst, &config##inst,             \

			      POST_KERNEL, CONFIG_MFD_INIT_PRIORITY, NULL);

	DEVICE_DT_DEFINE(node, mfd_axp192_init, NULL,                                              \

			 COND_CODE_1(CONFIG_DT_HAS_X_POWERS_AXP192_ENABLED,                        \

				     (&data##node), (NULL)),                                       \

			 &config##node, POST_KERNEL, CONFIG_MFD_INIT_PRIORITY, NULL);



DT_INST_FOREACH_STATUS_OKAY(MFD_AXP192_DEFINE);
 
DT_FOREACH_STATUS_OKAY_VARGS(x_powers_axp192, MFD_AXP192_AXP2101_DEFINE, 192);

DT_FOREACH_STATUS_OKAY_VARGS(x_powers_axp2101, MFD_AXP192_AXP2101_DEFINE, 2101);

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