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Commit 796f5692 authored by Andrew F. Davis's avatar Andrew F. Davis Committed by Lee Jones
Browse files

mfd: tps65912: Add driver for the TPS65912 PMIC 



This patch adds support for TPS65912 PMIC MFD core. It provides
communication through the I2C and SPI interfaces. It contains
the following components:

 - Regulators
 - GPIO controller

Signed-off-by: default avatarAndrew F. Davis <afd@ti.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent 65b65559

drivers/mfd/Kconfig

+24 −0
Original line number Diff line number Diff line
@@ -1180,6 +1180,30 @@ config MFD_TPS65910 
	  if you say yes here you get support for the TPS65910 series of

	  Power Management chips.



config MFD_TPS65912

	tristate

	select MFD_CORE

	select REGMAP

	select REGMAP_IRQ



config MFD_TPS65912_I2C

	tristate "TI TPS65912 Power Management chip with I2C"

	select MFD_TPS65912

	select REGMAP_I2C

	depends on I2C

	help

	  If you say yes here you get support for the TPS65912 series of

	  PM chips with I2C interface.



config MFD_TPS65912_SPI

	tristate "TI TPS65912 Power Management chip with SPI"

	select MFD_TPS65912

	select REGMAP_SPI

	depends on SPI_MASTER

	help

	  If you say yes here you get support for the TPS65912 series of

	  PM chips with SPI interface.



config MFD_TPS80031

	bool "TI TPS80031/TPS80032 Power Management chips"

	depends on I2C=y

drivers/mfd/Makefile

+3 −0
Original line number Diff line number Diff line
@@ -73,6 +73,9 @@ obj-$(CONFIG_TPS6507X) += tps6507x.o 
obj-$(CONFIG_MFD_TPS65217)	+= tps65217.o

obj-$(CONFIG_MFD_TPS65218)	+= tps65218.o

obj-$(CONFIG_MFD_TPS65910)	+= tps65910.o

obj-$(CONFIG_MFD_TPS65912)	+= tps65912-core.o

obj-$(CONFIG_MFD_TPS65912_I2C)	+= tps65912-i2c.o

obj-$(CONFIG_MFD_TPS65912_SPI)  += tps65912-spi.o

obj-$(CONFIG_MFD_TPS80031)	+= tps80031.o

obj-$(CONFIG_MENELAUS)		+= menelaus.o

drivers/mfd/tps65912-core.c

0 → 100644
+111 −0
Original line number Diff line number Diff line 
/*

 * Core functions for TI TPS65912x PMICs

 *

 * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/

 *	Andrew F. Davis <afd@ti.com>

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 * This program is distributed "as is" WITHOUT ANY WARRANTY of any

 * kind, whether expressed or implied; without even the implied warranty

 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License version 2 for more details.

 *

 * Based on the TPS65218 driver and the previous TPS65912 driver by

 * Margarita Olaya Cabrera <magi@slimlogic.co.uk>

 */



#include <linux/interrupt.h>

#include <linux/mfd/core.h>

#include <linux/module.h>



#include <linux/mfd/tps65912.h>



static const struct mfd_cell tps65912_cells[] = {

	{ .name = "tps65912-regulator", },

	{ .name = "tps65912-gpio", },

};



static const struct regmap_irq tps65912_irqs[] = {

	/* INT_STS IRQs */

	REGMAP_IRQ_REG(TPS65912_IRQ_PWRHOLD_F, 0, TPS65912_INT_STS_PWRHOLD_F),

	REGMAP_IRQ_REG(TPS65912_IRQ_VMON, 0, TPS65912_INT_STS_VMON),

	REGMAP_IRQ_REG(TPS65912_IRQ_PWRON, 0, TPS65912_INT_STS_PWRON),

	REGMAP_IRQ_REG(TPS65912_IRQ_PWRON_LP, 0, TPS65912_INT_STS_PWRON_LP),

	REGMAP_IRQ_REG(TPS65912_IRQ_PWRHOLD_R, 0, TPS65912_INT_STS_PWRHOLD_R),

	REGMAP_IRQ_REG(TPS65912_IRQ_HOTDIE, 0, TPS65912_INT_STS_HOTDIE),

	REGMAP_IRQ_REG(TPS65912_IRQ_GPIO1_R, 0, TPS65912_INT_STS_GPIO1_R),

	REGMAP_IRQ_REG(TPS65912_IRQ_GPIO1_F, 0, TPS65912_INT_STS_GPIO1_F),

	/* INT_STS2 IRQs */

	REGMAP_IRQ_REG(TPS65912_IRQ_GPIO2_R, 1, TPS65912_INT_STS2_GPIO2_R),

	REGMAP_IRQ_REG(TPS65912_IRQ_GPIO2_F, 1, TPS65912_INT_STS2_GPIO2_F),

	REGMAP_IRQ_REG(TPS65912_IRQ_GPIO3_R, 1, TPS65912_INT_STS2_GPIO3_R),

	REGMAP_IRQ_REG(TPS65912_IRQ_GPIO3_F, 1, TPS65912_INT_STS2_GPIO3_F),

	REGMAP_IRQ_REG(TPS65912_IRQ_GPIO4_R, 1, TPS65912_INT_STS2_GPIO4_R),

	REGMAP_IRQ_REG(TPS65912_IRQ_GPIO4_F, 1, TPS65912_INT_STS2_GPIO4_F),

	REGMAP_IRQ_REG(TPS65912_IRQ_GPIO5_R, 1, TPS65912_INT_STS2_GPIO5_R),

	REGMAP_IRQ_REG(TPS65912_IRQ_GPIO5_F, 1, TPS65912_INT_STS2_GPIO5_F),

	/* INT_STS3 IRQs */

	REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC1, 2, TPS65912_INT_STS3_PGOOD_DCDC1),

	REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC2, 2, TPS65912_INT_STS3_PGOOD_DCDC2),

	REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC3, 2, TPS65912_INT_STS3_PGOOD_DCDC3),

	REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC4, 2, TPS65912_INT_STS3_PGOOD_DCDC4),

	REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO1, 2, TPS65912_INT_STS3_PGOOD_LDO1),

	REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO2, 2, TPS65912_INT_STS3_PGOOD_LDO2),

	REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO3, 2, TPS65912_INT_STS3_PGOOD_LDO3),

	REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO4, 2, TPS65912_INT_STS3_PGOOD_LDO4),

	/* INT_STS4 IRQs */

	REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO5, 3, TPS65912_INT_STS4_PGOOD_LDO5),

	REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO6, 3, TPS65912_INT_STS4_PGOOD_LDO6),

	REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO7, 3, TPS65912_INT_STS4_PGOOD_LDO7),

	REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO8, 3, TPS65912_INT_STS4_PGOOD_LDO8),

	REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO9, 3, TPS65912_INT_STS4_PGOOD_LDO9),

	REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO10, 3, TPS65912_INT_STS4_PGOOD_LDO10),

};



static struct regmap_irq_chip tps65912_irq_chip = {

	.name = "tps65912",

	.irqs = tps65912_irqs,

	.num_irqs = ARRAY_SIZE(tps65912_irqs),

	.num_regs = 4,

	.irq_reg_stride = 2,

	.mask_base = TPS65912_INT_MSK,

	.status_base = TPS65912_INT_STS,

	.ack_base = TPS65912_INT_STS,

	.init_ack_masked = true,

};



int tps65912_device_init(struct tps65912 *tps)

{

	int ret;



	ret = regmap_add_irq_chip(tps->regmap, tps->irq, IRQF_ONESHOT, 0,

				  &tps65912_irq_chip, &tps->irq_data);

	if (ret)

		return ret;



	ret = mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65912_cells,

			      ARRAY_SIZE(tps65912_cells), NULL, 0,

			      regmap_irq_get_domain(tps->irq_data));

	if (ret) {

		regmap_del_irq_chip(tps->irq, tps->irq_data);

		return ret;

	}



	return 0;

}

EXPORT_SYMBOL_GPL(tps65912_device_init);



int tps65912_device_exit(struct tps65912 *tps)

{

	regmap_del_irq_chip(tps->irq, tps->irq_data);



	return 0;

}

EXPORT_SYMBOL_GPL(tps65912_device_exit);



MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");

MODULE_DESCRIPTION("TPS65912x MFD Driver");

MODULE_LICENSE("GPL v2");

drivers/mfd/tps65912-i2c.c

0 → 100644
+79 −0
Original line number Diff line number Diff line 
/*

 * I2C access driver for TI TPS65912x PMICs

 *

 * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/

 *	Andrew F. Davis <afd@ti.com>

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 * This program is distributed "as is" WITHOUT ANY WARRANTY of any

 * kind, whether expressed or implied; without even the implied warranty

 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License version 2 for more details.

 *

 * Based on the TPS65218 driver and the previous TPS65912 driver by

 * Margarita Olaya Cabrera <magi@slimlogic.co.uk>

 */



#include <linux/i2c.h>

#include <linux/module.h>

#include <linux/regmap.h>



#include <linux/mfd/tps65912.h>



static const struct of_device_id tps65912_i2c_of_match_table[] = {

	{ .compatible = "ti,tps65912", },

	{ /* sentinel */ }

};



static int tps65912_i2c_probe(struct i2c_client *client,

			      const struct i2c_device_id *ids)

{

	struct tps65912 *tps;



	tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);

	if (!tps)

		return -ENOMEM;



	i2c_set_clientdata(client, tps);

	tps->dev = &client->dev;

	tps->irq = client->irq;



	tps->regmap = devm_regmap_init_i2c(client, &tps65912_regmap_config);

	if (IS_ERR(tps->regmap)) {

		dev_err(tps->dev, "Failed to initialize register map\n");

		return PTR_ERR(tps->regmap);

	}



	return tps65912_device_init(tps);

}



static int tps65912_i2c_remove(struct i2c_client *client)

{

	struct tps65912 *tps = i2c_get_clientdata(client);



	return tps65912_device_exit(tps);

}



static const struct i2c_device_id tps65912_i2c_id_table[] = {

	{ "tps65912", 0 },

	{ /* sentinel */ }

};

MODULE_DEVICE_TABLE(i2c, tps65912_i2c_id_table);



static struct i2c_driver tps65912_i2c_driver = {

	.driver		= {

		.name	= "tps65912",

		.of_match_table = tps65912_i2c_of_match_table,

	},

	.probe		= tps65912_i2c_probe,

	.remove		= tps65912_i2c_remove,

	.id_table       = tps65912_i2c_id_table,

};

module_i2c_driver(tps65912_i2c_driver);



MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");

MODULE_DESCRIPTION("TPS65912x I2C Interface Driver");

MODULE_LICENSE("GPL v2");

drivers/mfd/tps65912-spi.c

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+78 −0
Original line number Diff line number Diff line 
/*

 * SPI access driver for TI TPS65912x PMICs

 *

 * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/

 *	Andrew F. Davis <afd@ti.com>

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 * This program is distributed "as is" WITHOUT ANY WARRANTY of any

 * kind, whether expressed or implied; without even the implied warranty

 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License version 2 for more details.

 *

 * Based on the TPS65218 driver and the previous TPS65912 driver by

 * Margarita Olaya Cabrera <magi@slimlogic.co.uk>

 */



#include <linux/module.h>

#include <linux/regmap.h>

#include <linux/spi/spi.h>



#include <linux/mfd/tps65912.h>



static const struct of_device_id tps65912_spi_of_match_table[] = {

	{ .compatible = "ti,tps65912", },

	{ /* sentinel */ }

};



static int tps65912_spi_probe(struct spi_device *spi)

{

	struct tps65912 *tps;



	tps = devm_kzalloc(&spi->dev, sizeof(*tps), GFP_KERNEL);

	if (!tps)

		return -ENOMEM;



	spi_set_drvdata(spi, tps);

	tps->dev = &spi->dev;

	tps->irq = spi->irq;



	tps->regmap = devm_regmap_init_spi(spi, &tps65912_regmap_config);

	if (IS_ERR(tps->regmap)) {

		dev_err(tps->dev, "Failed to initialize register map\n");

		return PTR_ERR(tps->regmap);

	}



	return tps65912_device_init(tps);

}



static int tps65912_spi_remove(struct spi_device *client)

{

	struct tps65912 *tps = spi_get_drvdata(client);



	return tps65912_device_exit(tps);

}



static const struct spi_device_id tps65912_spi_id_table[] = {

	{ "tps65912", 0 },

	{ /* sentinel */ }

};

MODULE_DEVICE_TABLE(spi, tps65912_spi_id_table);



static struct spi_driver tps65912_spi_driver = {

	.driver		= {

		.name	= "tps65912",

		.of_match_table = tps65912_spi_of_match_table,

	},

	.probe		= tps65912_spi_probe,

	.remove		= tps65912_spi_remove,

	.id_table       = tps65912_spi_id_table,

};

module_spi_driver(tps65912_spi_driver);



MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");

MODULE_DESCRIPTION("TPS65912x SPI Interface Driver");

MODULE_LICENSE("GPL v2");