mfd: Add TI LMU driver
TI LMU (Lighting Management Unit) driver supports lighting devices below. LM3532, LM3631, LM3632, LM3633, LM3695 and LM3697. LMU devices have common features. - I2C interface for accessing device registers - Hardware enable pin control - Backlight brightness control - Notifier for hardware fault monitoring - Regulators for LCD display bias It contains fault monitor, backlight, LED and regulator driver. LMU fault monitor ----------------- LM3633 and LM3697 provide hardware monitoring feature. It enables open or short circuit detection. After monitoring is done, each device should be re-initialized. Notifier is used for this case. Separate patch for 'ti-lmu-fault-monitor' will be sent later. Backlight --------- It's handled by TI LMU backlight consolidated driver and chip dependent data. Separate patchset will be sent later. LED indicator ------------- LM3633 has 6 indicator LEDs. Programmable dimming pattern is also supported. Separate patch for 'leds-lm3633' will be sent later. Regulator --------- LM3631 has 5 regulators for the display bias. LM3632 supports 3 regulators. One consolidated driver enables it. The lm363x regulator driver is already upstreamed. Signed-off-by: Milo Kim <milo.kim@ti.com> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>zero-colors
Milo Kim
Lee Jones
parent
287cce719d
commit
d5aa11bfe9
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@ -1181,6 +1181,18 @@ config MFD_LP8788
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TI LP8788 PMU supports regulators, battery charger, RTC,
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ADC, backlight driver and current sinks.
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config MFD_TI_LMU
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tristate "TI Lighting Management Unit driver"
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depends on I2C
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select MFD_CORE
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select REGMAP_I2C
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help
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Say yes here to enable support for TI LMU chips.
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TI LMU MFD supports LM3532, LM3631, LM3632, LM3633, LM3695 and LM3697.
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It consists of backlight, LED and regulator driver.
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It provides consistent device controls for lighting functions.
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config MFD_OMAP_USB_HOST
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bool "TI OMAP USBHS core and TLL driver"
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depends on USB_EHCI_HCD_OMAP || USB_OHCI_HCD_OMAP3
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@ -127,6 +127,8 @@ obj-$(CONFIG_MFD_AXP20X_RSB) += axp20x-rsb.o
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obj-$(CONFIG_MFD_LP3943) += lp3943.o
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obj-$(CONFIG_MFD_LP8788) += lp8788.o lp8788-irq.o
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obj-$(CONFIG_MFD_TI_LMU) += ti-lmu.o
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da9055-objs := da9055-core.o da9055-i2c.o
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obj-$(CONFIG_MFD_DA9055) += da9055.o
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obj-$(CONFIG_MFD_DA9062) += da9062-core.o
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@ -0,0 +1,259 @@
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/*
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* TI LMU (Lighting Management Unit) Core Driver
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*
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* Copyright 2017 Texas Instruments
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*
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* Author: Milo Kim <milo.kim@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/gpio.h>
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#include <linux/i2c.h>
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#include <linux/kernel.h>
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#include <linux/mfd/core.h>
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#include <linux/mfd/ti-lmu.h>
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#include <linux/mfd/ti-lmu-register.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/of_gpio.h>
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#include <linux/slab.h>
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struct ti_lmu_data {
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struct mfd_cell *cells;
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int num_cells;
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unsigned int max_register;
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};
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static int ti_lmu_enable_hw(struct ti_lmu *lmu, enum ti_lmu_id id)
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{
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int ret;
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if (gpio_is_valid(lmu->en_gpio)) {
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ret = devm_gpio_request_one(lmu->dev, lmu->en_gpio,
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GPIOF_OUT_INIT_HIGH, "lmu_hwen");
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if (ret) {
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dev_err(lmu->dev, "Can not request enable GPIO: %d\n",
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ret);
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return ret;
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}
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}
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/* Delay about 1ms after HW enable pin control */
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usleep_range(1000, 1500);
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/* LM3631 has additional power up sequence - enable LCD_EN bit. */
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if (id == LM3631) {
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return regmap_update_bits(lmu->regmap, LM3631_REG_DEVCTRL,
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LM3631_LCD_EN_MASK,
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LM3631_LCD_EN_MASK);
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}
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return 0;
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}
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static void ti_lmu_disable_hw(struct ti_lmu *lmu)
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{
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if (gpio_is_valid(lmu->en_gpio))
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gpio_set_value(lmu->en_gpio, 0);
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}
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static struct mfd_cell lm3532_devices[] = {
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{
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.name = "ti-lmu-backlight",
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.id = LM3532,
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.of_compatible = "ti,lm3532-backlight",
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},
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};
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#define LM363X_REGULATOR(_id) \
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{ \
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.name = "lm363x-regulator", \
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.id = _id, \
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.of_compatible = "ti,lm363x-regulator", \
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} \
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static struct mfd_cell lm3631_devices[] = {
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LM363X_REGULATOR(LM3631_BOOST),
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LM363X_REGULATOR(LM3631_LDO_CONT),
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LM363X_REGULATOR(LM3631_LDO_OREF),
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LM363X_REGULATOR(LM3631_LDO_POS),
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LM363X_REGULATOR(LM3631_LDO_NEG),
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{
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.name = "ti-lmu-backlight",
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.id = LM3631,
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.of_compatible = "ti,lm3631-backlight",
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},
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};
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static struct mfd_cell lm3632_devices[] = {
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LM363X_REGULATOR(LM3632_BOOST),
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LM363X_REGULATOR(LM3632_LDO_POS),
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LM363X_REGULATOR(LM3632_LDO_NEG),
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{
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.name = "ti-lmu-backlight",
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.id = LM3632,
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.of_compatible = "ti,lm3632-backlight",
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},
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};
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static struct mfd_cell lm3633_devices[] = {
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{
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.name = "ti-lmu-backlight",
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.id = LM3633,
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.of_compatible = "ti,lm3633-backlight",
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},
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{
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.name = "lm3633-leds",
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.of_compatible = "ti,lm3633-leds",
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},
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/* Monitoring driver for open/short circuit detection */
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{
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.name = "ti-lmu-fault-monitor",
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.id = LM3633,
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.of_compatible = "ti,lm3633-fault-monitor",
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},
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};
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static struct mfd_cell lm3695_devices[] = {
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{
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.name = "ti-lmu-backlight",
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.id = LM3695,
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.of_compatible = "ti,lm3695-backlight",
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},
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};
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static struct mfd_cell lm3697_devices[] = {
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{
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.name = "ti-lmu-backlight",
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.id = LM3697,
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.of_compatible = "ti,lm3697-backlight",
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},
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/* Monitoring driver for open/short circuit detection */
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{
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.name = "ti-lmu-fault-monitor",
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.id = LM3697,
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.of_compatible = "ti,lm3697-fault-monitor",
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},
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};
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#define TI_LMU_DATA(chip, max_reg) \
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static const struct ti_lmu_data chip##_data = \
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{ \
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.cells = chip##_devices, \
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.num_cells = ARRAY_SIZE(chip##_devices),\
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.max_register = max_reg, \
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} \
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TI_LMU_DATA(lm3532, LM3532_MAX_REG);
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TI_LMU_DATA(lm3631, LM3631_MAX_REG);
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TI_LMU_DATA(lm3632, LM3632_MAX_REG);
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TI_LMU_DATA(lm3633, LM3633_MAX_REG);
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TI_LMU_DATA(lm3695, LM3695_MAX_REG);
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TI_LMU_DATA(lm3697, LM3697_MAX_REG);
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static const struct of_device_id ti_lmu_of_match[] = {
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{ .compatible = "ti,lm3532", .data = &lm3532_data },
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{ .compatible = "ti,lm3631", .data = &lm3631_data },
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{ .compatible = "ti,lm3632", .data = &lm3632_data },
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{ .compatible = "ti,lm3633", .data = &lm3633_data },
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{ .compatible = "ti,lm3695", .data = &lm3695_data },
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{ .compatible = "ti,lm3697", .data = &lm3697_data },
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{ }
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};
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MODULE_DEVICE_TABLE(of, ti_lmu_of_match);
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static int ti_lmu_probe(struct i2c_client *cl, const struct i2c_device_id *id)
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{
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struct device *dev = &cl->dev;
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const struct of_device_id *match;
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const struct ti_lmu_data *data;
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struct regmap_config regmap_cfg;
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struct ti_lmu *lmu;
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int ret;
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match = of_match_device(ti_lmu_of_match, dev);
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if (!match)
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return -ENODEV;
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/*
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* Get device specific data from of_match table.
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* This data is defined by using TI_LMU_DATA() macro.
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*/
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data = (struct ti_lmu_data *)match->data;
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lmu = devm_kzalloc(dev, sizeof(*lmu), GFP_KERNEL);
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if (!lmu)
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return -ENOMEM;
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lmu->dev = &cl->dev;
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/* Setup regmap */
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memset(®map_cfg, 0, sizeof(struct regmap_config));
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regmap_cfg.reg_bits = 8;
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regmap_cfg.val_bits = 8;
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regmap_cfg.name = id->name;
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regmap_cfg.max_register = data->max_register;
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lmu->regmap = devm_regmap_init_i2c(cl, ®map_cfg);
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if (IS_ERR(lmu->regmap))
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return PTR_ERR(lmu->regmap);
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/* HW enable pin control and additional power up sequence if required */
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lmu->en_gpio = of_get_named_gpio(dev->of_node, "enable-gpios", 0);
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ret = ti_lmu_enable_hw(lmu, id->driver_data);
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if (ret)
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return ret;
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/*
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* Fault circuit(open/short) can be detected by ti-lmu-fault-monitor.
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* After fault detection is done, some devices should re-initialize
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* configuration. The notifier enables such kind of handling.
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*/
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BLOCKING_INIT_NOTIFIER_HEAD(&lmu->notifier);
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i2c_set_clientdata(cl, lmu);
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return mfd_add_devices(lmu->dev, 0, data->cells,
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data->num_cells, NULL, 0, NULL);
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}
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static int ti_lmu_remove(struct i2c_client *cl)
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{
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struct ti_lmu *lmu = i2c_get_clientdata(cl);
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ti_lmu_disable_hw(lmu);
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mfd_remove_devices(lmu->dev);
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return 0;
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}
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static const struct i2c_device_id ti_lmu_ids[] = {
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{ "lm3532", LM3532 },
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{ "lm3631", LM3631 },
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{ "lm3632", LM3632 },
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{ "lm3633", LM3633 },
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{ "lm3695", LM3695 },
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{ "lm3697", LM3697 },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, ti_lmu_ids);
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static struct i2c_driver ti_lmu_driver = {
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.probe = ti_lmu_probe,
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.remove = ti_lmu_remove,
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.driver = {
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.name = "ti-lmu",
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.of_match_table = ti_lmu_of_match,
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},
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.id_table = ti_lmu_ids,
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};
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module_i2c_driver(ti_lmu_driver);
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MODULE_DESCRIPTION("TI LMU MFD Core Driver");
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MODULE_AUTHOR("Milo Kim");
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MODULE_LICENSE("GPL v2");
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@ -0,0 +1,280 @@
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/*
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* TI LMU (Lighting Management Unit) Device Register Map
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*
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* Copyright 2017 Texas Instruments
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*
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* Author: Milo Kim <milo.kim@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __MFD_TI_LMU_REGISTER_H__
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#define __MFD_TI_LMU_REGISTER_H__
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#include <linux/bitops.h>
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/* LM3532 */
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#define LM3532_REG_OUTPUT_CFG 0x10
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#define LM3532_ILED1_CFG_MASK 0x03
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#define LM3532_ILED2_CFG_MASK 0x0C
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#define LM3532_ILED3_CFG_MASK 0x30
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#define LM3532_ILED1_CFG_SHIFT 0
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#define LM3532_ILED2_CFG_SHIFT 2
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#define LM3532_ILED3_CFG_SHIFT 4
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#define LM3532_REG_RAMPUP 0x12
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#define LM3532_REG_RAMPDN LM3532_REG_RAMPUP
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#define LM3532_RAMPUP_MASK 0x07
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#define LM3532_RAMPUP_SHIFT 0
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#define LM3532_RAMPDN_MASK 0x38
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#define LM3532_RAMPDN_SHIFT 3
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#define LM3532_REG_ENABLE 0x1D
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#define LM3532_REG_PWM_A_CFG 0x13
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#define LM3532_PWM_A_MASK 0x05 /* zone 0 */
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#define LM3532_PWM_ZONE_0 BIT(2)
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#define LM3532_REG_PWM_B_CFG 0x14
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#define LM3532_PWM_B_MASK 0x09 /* zone 1 */
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#define LM3532_PWM_ZONE_1 BIT(3)
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#define LM3532_REG_PWM_C_CFG 0x15
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#define LM3532_PWM_C_MASK 0x11 /* zone 2 */
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#define LM3532_PWM_ZONE_2 BIT(4)
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#define LM3532_REG_ZONE_CFG_A 0x16
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#define LM3532_REG_ZONE_CFG_B 0x18
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#define LM3532_REG_ZONE_CFG_C 0x1A
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#define LM3532_ZONE_MASK (BIT(2) | BIT(3) | BIT(4))
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#define LM3532_ZONE_0 0
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#define LM3532_ZONE_1 BIT(2)
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#define LM3532_ZONE_2 BIT(3)
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#define LM3532_REG_BRT_A 0x70 /* zone 0 */
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#define LM3532_REG_BRT_B 0x76 /* zone 1 */
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#define LM3532_REG_BRT_C 0x7C /* zone 2 */
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#define LM3532_MAX_REG 0x7E
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/* LM3631 */
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#define LM3631_REG_DEVCTRL 0x00
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#define LM3631_LCD_EN_MASK BIT(1)
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#define LM3631_BL_EN_MASK BIT(0)
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#define LM3631_REG_BRT_LSB 0x01
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#define LM3631_REG_BRT_MSB 0x02
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#define LM3631_REG_BL_CFG 0x06
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#define LM3631_BL_CHANNEL_MASK BIT(3)
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#define LM3631_BL_DUAL_CHANNEL 0
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#define LM3631_BL_SINGLE_CHANNEL BIT(3)
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#define LM3631_MAP_MASK BIT(5)
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#define LM3631_EXPONENTIAL_MAP 0
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#define LM3631_REG_BRT_MODE 0x08
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#define LM3631_MODE_MASK (BIT(1) | BIT(2) | BIT(3))
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#define LM3631_DEFAULT_MODE (BIT(1) | BIT(3))
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#define LM3631_REG_SLOPE 0x09
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#define LM3631_SLOPE_MASK 0xF0
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#define LM3631_SLOPE_SHIFT 4
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#define LM3631_REG_LDO_CTRL1 0x0A
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#define LM3631_EN_OREF_MASK BIT(0)
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#define LM3631_EN_VNEG_MASK BIT(1)
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#define LM3631_EN_VPOS_MASK BIT(2)
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#define LM3631_REG_LDO_CTRL2 0x0B
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#define LM3631_EN_CONT_MASK BIT(0)
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#define LM3631_REG_VOUT_CONT 0x0C
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#define LM3631_VOUT_CONT_MASK (BIT(6) | BIT(7))
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#define LM3631_REG_VOUT_BOOST 0x0C
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#define LM3631_REG_VOUT_POS 0x0D
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#define LM3631_REG_VOUT_NEG 0x0E
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#define LM3631_REG_VOUT_OREF 0x0F
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#define LM3631_VOUT_MASK 0x3F
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#define LM3631_REG_ENTIME_VCONT 0x0B
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#define LM3631_ENTIME_CONT_MASK 0x70
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#define LM3631_REG_ENTIME_VOREF 0x0F
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#define LM3631_REG_ENTIME_VPOS 0x10
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#define LM3631_REG_ENTIME_VNEG 0x11
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#define LM3631_ENTIME_MASK 0xF0
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#define LM3631_ENTIME_SHIFT 4
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#define LM3631_MAX_REG 0x16
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/* LM3632 */
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#define LM3632_REG_CONFIG1 0x02
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#define LM3632_OVP_MASK (BIT(5) | BIT(6) | BIT(7))
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#define LM3632_OVP_25V BIT(6)
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#define LM3632_REG_CONFIG2 0x03
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#define LM3632_SWFREQ_MASK BIT(7)
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#define LM3632_SWFREQ_1MHZ BIT(7)
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#define LM3632_REG_BRT_LSB 0x04
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#define LM3632_REG_BRT_MSB 0x05
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#define LM3632_REG_IO_CTRL 0x09
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#define LM3632_PWM_MASK BIT(6)
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#define LM3632_I2C_MODE 0
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#define LM3632_PWM_MODE BIT(6)
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#define LM3632_REG_ENABLE 0x0A
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#define LM3632_BL_EN_MASK BIT(0)
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||||
#define LM3632_BL_CHANNEL_MASK (BIT(3) | BIT(4))
|
||||
#define LM3632_BL_SINGLE_CHANNEL BIT(4)
|
||||
#define LM3632_BL_DUAL_CHANNEL BIT(3)
|
||||
|
||||
#define LM3632_REG_BIAS_CONFIG 0x0C
|
||||
#define LM3632_EXT_EN_MASK BIT(0)
|
||||
#define LM3632_EN_VNEG_MASK BIT(1)
|
||||
#define LM3632_EN_VPOS_MASK BIT(2)
|
||||
|
||||
#define LM3632_REG_VOUT_BOOST 0x0D
|
||||
#define LM3632_REG_VOUT_POS 0x0E
|
||||
#define LM3632_REG_VOUT_NEG 0x0F
|
||||
#define LM3632_VOUT_MASK 0x3F
|
||||
|
||||
#define LM3632_MAX_REG 0x10
|
||||
|
||||
/* LM3633 */
|
||||
#define LM3633_REG_HVLED_OUTPUT_CFG 0x10
|
||||
#define LM3633_HVLED1_CFG_MASK BIT(0)
|
||||
#define LM3633_HVLED2_CFG_MASK BIT(1)
|
||||
#define LM3633_HVLED3_CFG_MASK BIT(2)
|
||||
#define LM3633_HVLED1_CFG_SHIFT 0
|
||||
#define LM3633_HVLED2_CFG_SHIFT 1
|
||||
#define LM3633_HVLED3_CFG_SHIFT 2
|
||||
|
||||
#define LM3633_REG_BANK_SEL 0x11
|
||||
|
||||
#define LM3633_REG_BL0_RAMP 0x12
|
||||
#define LM3633_REG_BL1_RAMP 0x13
|
||||
#define LM3633_BL_RAMPUP_MASK 0xF0
|
||||
#define LM3633_BL_RAMPUP_SHIFT 4
|
||||
#define LM3633_BL_RAMPDN_MASK 0x0F
|
||||
#define LM3633_BL_RAMPDN_SHIFT 0
|
||||
|
||||
#define LM3633_REG_BL_RAMP_CONF 0x1B
|
||||
#define LM3633_BL_RAMP_MASK 0x0F
|
||||
#define LM3633_BL_RAMP_EACH 0x05
|
||||
|
||||
#define LM3633_REG_PTN0_RAMP 0x1C
|
||||
#define LM3633_REG_PTN1_RAMP 0x1D
|
||||
#define LM3633_PTN_RAMPUP_MASK 0x70
|
||||
#define LM3633_PTN_RAMPUP_SHIFT 4
|
||||
#define LM3633_PTN_RAMPDN_MASK 0x07
|
||||
#define LM3633_PTN_RAMPDN_SHIFT 0
|
||||
|
||||
#define LM3633_REG_LED_MAPPING_MODE 0x1F
|
||||
#define LM3633_LED_EXPONENTIAL BIT(1)
|
||||
|
||||
#define LM3633_REG_IMAX_HVLED_A 0x20
|
||||
#define LM3633_REG_IMAX_HVLED_B 0x21
|
||||
#define LM3633_REG_IMAX_LVLED_BASE 0x22
|
||||
|
||||
#define LM3633_REG_BL_FEEDBACK_ENABLE 0x28
|
||||
|
||||
#define LM3633_REG_ENABLE 0x2B
|
||||
#define LM3633_LED_BANK_OFFSET 2
|
||||
|
||||
#define LM3633_REG_PATTERN 0x2C
|
||||
|
||||
#define LM3633_REG_BOOST_CFG 0x2D
|
||||
#define LM3633_OVP_MASK (BIT(1) | BIT(2))
|
||||
#define LM3633_OVP_40V 0x6
|
||||
|
||||
#define LM3633_REG_PWM_CFG 0x2F
|
||||
#define LM3633_PWM_A_MASK BIT(0)
|
||||
#define LM3633_PWM_B_MASK BIT(1)
|
||||
|
||||
#define LM3633_REG_BRT_HVLED_A_LSB 0x40
|
||||
#define LM3633_REG_BRT_HVLED_A_MSB 0x41
|
||||
#define LM3633_REG_BRT_HVLED_B_LSB 0x42
|
||||
#define LM3633_REG_BRT_HVLED_B_MSB 0x43
|
||||
|
||||
#define LM3633_REG_BRT_LVLED_BASE 0x44
|
||||
|
||||
#define LM3633_REG_PTN_DELAY 0x50
|
||||
|
||||
#define LM3633_REG_PTN_LOWTIME 0x51
|
||||
|
||||
#define LM3633_REG_PTN_HIGHTIME 0x52
|
||||
|
||||
#define LM3633_REG_PTN_LOWBRT 0x53
|
||||
|
||||
#define LM3633_REG_PTN_HIGHBRT LM3633_REG_BRT_LVLED_BASE
|
||||
|
||||
#define LM3633_REG_BL_OPEN_FAULT_STATUS 0xB0
|
||||
|
||||
#define LM3633_REG_BL_SHORT_FAULT_STATUS 0xB2
|
||||
|
||||
#define LM3633_REG_MONITOR_ENABLE 0xB4
|
||||
|
||||
#define LM3633_MAX_REG 0xB4
|
||||
|
||||
/* LM3695 */
|
||||
#define LM3695_REG_GP 0x10
|
||||
#define LM3695_BL_CHANNEL_MASK BIT(3)
|
||||
#define LM3695_BL_DUAL_CHANNEL 0
|
||||
#define LM3695_BL_SINGLE_CHANNEL BIT(3)
|
||||
#define LM3695_BRT_RW_MASK BIT(2)
|
||||
#define LM3695_BL_EN_MASK BIT(0)
|
||||
|
||||
#define LM3695_REG_BRT_LSB 0x13
|
||||
#define LM3695_REG_BRT_MSB 0x14
|
||||
|
||||
#define LM3695_MAX_REG 0x14
|
||||
|
||||
/* LM3697 */
|
||||
#define LM3697_REG_HVLED_OUTPUT_CFG 0x10
|
||||
#define LM3697_HVLED1_CFG_MASK BIT(0)
|
||||
#define LM3697_HVLED2_CFG_MASK BIT(1)
|
||||
#define LM3697_HVLED3_CFG_MASK BIT(2)
|
||||
#define LM3697_HVLED1_CFG_SHIFT 0
|
||||
#define LM3697_HVLED2_CFG_SHIFT 1
|
||||
#define LM3697_HVLED3_CFG_SHIFT 2
|
||||
|
||||
#define LM3697_REG_BL0_RAMP 0x11
|
||||
#define LM3697_REG_BL1_RAMP 0x12
|
||||
#define LM3697_RAMPUP_MASK 0xF0
|
||||
#define LM3697_RAMPUP_SHIFT 4
|
||||
#define LM3697_RAMPDN_MASK 0x0F
|
||||
#define LM3697_RAMPDN_SHIFT 0
|
||||
|
||||
#define LM3697_REG_RAMP_CONF 0x14
|
||||
#define LM3697_RAMP_MASK 0x0F
|
||||
#define LM3697_RAMP_EACH 0x05
|
||||
|
||||
#define LM3697_REG_PWM_CFG 0x1C
|
||||
#define LM3697_PWM_A_MASK BIT(0)
|
||||
#define LM3697_PWM_B_MASK BIT(1)
|
||||
|
||||
#define LM3697_REG_IMAX_A 0x17
|
||||
#define LM3697_REG_IMAX_B 0x18
|
||||
|
||||
#define LM3697_REG_FEEDBACK_ENABLE 0x19
|
||||
|
||||
#define LM3697_REG_BRT_A_LSB 0x20
|
||||
#define LM3697_REG_BRT_A_MSB 0x21
|
||||
#define LM3697_REG_BRT_B_LSB 0x22
|
||||
#define LM3697_REG_BRT_B_MSB 0x23
|
||||
|
||||
#define LM3697_REG_ENABLE 0x24
|
||||
|
||||
#define LM3697_REG_OPEN_FAULT_STATUS 0xB0
|
||||
|
||||
#define LM3697_REG_SHORT_FAULT_STATUS 0xB2
|
||||
|
||||
#define LM3697_REG_MONITOR_ENABLE 0xB4
|
||||
|
||||
#define LM3697_MAX_REG 0xB4
|
||||
#endif
|
||||
|
|
@ -0,0 +1,87 @@
|
|||
/*
|
||||
* TI LMU (Lighting Management Unit) Devices
|
||||
*
|
||||
* Copyright 2017 Texas Instruments
|
||||
*
|
||||
* Author: Milo Kim <milo.kim@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.
|
||||
*/
|
||||
|
||||
#ifndef __MFD_TI_LMU_H__
|
||||
#define __MFD_TI_LMU_H__
|
||||
|
||||
#include <linux/gpio.h>
|
||||
#include <linux/notifier.h>
|
||||
#include <linux/regmap.h>
|
||||
|
||||
/* Notifier event */
|
||||
#define LMU_EVENT_MONITOR_DONE 0x01
|
||||
|
||||
enum ti_lmu_id {
|
||||
LM3532,
|
||||
LM3631,
|
||||
LM3632,
|
||||
LM3633,
|
||||
LM3695,
|
||||
LM3697,
|
||||
LMU_MAX_ID,
|
||||
};
|
||||
|
||||
enum ti_lmu_max_current {
|
||||
LMU_IMAX_5mA,
|
||||
LMU_IMAX_6mA,
|
||||
LMU_IMAX_7mA = 0x03,
|
||||
LMU_IMAX_8mA,
|
||||
LMU_IMAX_9mA,
|
||||
LMU_IMAX_10mA = 0x07,
|
||||
LMU_IMAX_11mA,
|
||||
LMU_IMAX_12mA,
|
||||
LMU_IMAX_13mA,
|
||||
LMU_IMAX_14mA,
|
||||
LMU_IMAX_15mA = 0x0D,
|
||||
LMU_IMAX_16mA,
|
||||
LMU_IMAX_17mA,
|
||||
LMU_IMAX_18mA,
|
||||
LMU_IMAX_19mA,
|
||||
LMU_IMAX_20mA = 0x13,
|
||||
LMU_IMAX_21mA,
|
||||
LMU_IMAX_22mA,
|
||||
LMU_IMAX_23mA = 0x17,
|
||||
LMU_IMAX_24mA,
|
||||
LMU_IMAX_25mA,
|
||||
LMU_IMAX_26mA,
|
||||
LMU_IMAX_27mA = 0x1C,
|
||||
LMU_IMAX_28mA,
|
||||
LMU_IMAX_29mA,
|
||||
LMU_IMAX_30mA,
|
||||
};
|
||||
|
||||
enum lm363x_regulator_id {
|
||||
LM3631_BOOST, /* Boost output */
|
||||
LM3631_LDO_CONT, /* Display panel controller */
|
||||
LM3631_LDO_OREF, /* Gamma reference */
|
||||
LM3631_LDO_POS, /* Positive display bias output */
|
||||
LM3631_LDO_NEG, /* Negative display bias output */
|
||||
LM3632_BOOST, /* Boost output */
|
||||
LM3632_LDO_POS, /* Positive display bias output */
|
||||
LM3632_LDO_NEG, /* Negative display bias output */
|
||||
};
|
||||
|
||||
/**
|
||||
* struct ti_lmu
|
||||
*
|
||||
* @dev: Parent device pointer
|
||||
* @regmap: Used for i2c communcation on accessing registers
|
||||
* @en_gpio: GPIO for HWEN pin [Optional]
|
||||
* @notifier: Notifier for reporting hwmon event
|
||||
*/
|
||||
struct ti_lmu {
|
||||
struct device *dev;
|
||||
struct regmap *regmap;
|
||||
int en_gpio;
|
||||
struct blocking_notifier_head notifier;
|
||||
};
|
||||
#endif
|
||||
Loading…
Reference in New Issue