Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932065AbbKBF0c (ORCPT ); Mon, 2 Nov 2015 00:26:32 -0500 Received: from comal.ext.ti.com ([198.47.26.152]:38845 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752931AbbKBF00 (ORCPT ); Mon, 2 Nov 2015 00:26:26 -0500 From: Milo Kim To: , , CC: Milo Kim , Jingoo Han , Guenter Roeck , Jean Delvare , Jacek Anaszewski , Mark Brown , , Subject: [PATCH RESEND 06/16] mfd: add TI LMU driver Date: Mon, 2 Nov 2015 14:24:25 +0900 Message-ID: <1446441875-1256-7-git-send-email-milo.kim@ti.com> X-Mailer: git-send-email 1.9.5.msysgit.0 In-Reply-To: <1446441875-1256-1-git-send-email-milo.kim@ti.com> References: <1446441875-1256-1-git-send-email-milo.kim@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 22510 Lines: 803 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 - Max current conversion helper function - Notifier for hardware fault monitoring - Regulators for LCD display bias It contains backlight, HWMON, LED and regulator driver. Backlight --------- It's handled by TI LMU backlight common driver and chip dependent driver. Please refer to separate patches for ti-lmu-backlight. HWMON ----- LM3633 and LM3697 provide hardware monitoring feature. It enables opened or shorted circuit detection. After monitoring is done, each device should be re-initialized. Notifier is used for this case. Please refer to separate patch for ti-lmu-hwmon. LED indicator ------------- LM3633 has 6 indicator LEDs. Programmable pattern is also supported. Please refer to separate patch for leds-lm3633. Regulator --------- LM3631 has 5 regulators for the display bias. LM3632 supports 3 regulators. One consolidated driver enables it. Please refer to separate patch for lm363x-regulator. Cc: Lee Jones Cc: Jingoo Han Cc: Guenter Roeck Cc: Jean Delvare Cc: Jacek Anaszewski Cc: Mark Brown Cc: lm-sensors@lm-sensors.org Cc: linux-leds@vger.kernel.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Milo Kim --- drivers/mfd/Kconfig | 12 ++ drivers/mfd/Makefile | 1 + drivers/mfd/ti-lmu.c | 324 ++++++++++++++++++++++++++++++++++++ include/linux/mfd/ti-lmu-register.h | 277 ++++++++++++++++++++++++++++++ include/linux/mfd/ti-lmu.h | 81 +++++++++ 5 files changed, 695 insertions(+) create mode 100644 drivers/mfd/ti-lmu.c create mode 100644 include/linux/mfd/ti-lmu-register.h create mode 100644 include/linux/mfd/ti-lmu.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 99d6367..a53a38e 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1037,6 +1037,18 @@ config MFD_LP8788 TI LP8788 PMU supports regulators, battery charger, RTC, ADC, backlight driver and current sinks. +config MFD_TI_LMU + tristate "TI Lighting Management Unit driver" + depends on I2C + select MFD_CORE + select REGMAP_I2C + help + Say yes here to enable support for TI LMU chips. + + TI LMU MFD supports LM3532, LM3631, LM3632, LM3633, LM3695 and LM3697. + It consists of backlight, hwmon, LED and regulator driver. + It provides consistent device controls for lighting functions. + config MFD_OMAP_USB_HOST bool "TI OMAP USBHS core and TLL driver" depends on USB_EHCI_HCD_OMAP || USB_OHCI_HCD_OMAP3 diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index a59e3fc..32920f8 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -110,6 +110,7 @@ obj-$(CONFIG_MFD_AXP20X) += axp20x.o obj-$(CONFIG_MFD_LP3943) += lp3943.o obj-$(CONFIG_MFD_LP8788) += lp8788.o lp8788-irq.o +obj-$(CONFIG_MFD_TI_LMU) += ti-lmu.o da9055-objs := da9055-core.o da9055-i2c.o obj-$(CONFIG_MFD_DA9055) += da9055.o diff --git a/drivers/mfd/ti-lmu.c b/drivers/mfd/ti-lmu.c new file mode 100644 index 0000000..e86a0ea --- /dev/null +++ b/drivers/mfd/ti-lmu.c @@ -0,0 +1,324 @@ +/* + * TI LMU(Lighting Management Unit) Core Driver + * + * Copyright 2015 Texas Instruments + * + * Author: Milo Kim + * + * 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. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define LMU_IMAX_OFFSET 6 + +enum ti_lmu_id { + LM3532, + LM3631, + LM3632, + LM3633, + LM3695, + LM3697, +}; + +struct ti_lmu_data { + struct mfd_cell *cells; + int num_cells; + unsigned int max_register; +}; + +int ti_lmu_read_byte(struct ti_lmu *lmu, u8 reg, u8 *read) +{ + int ret; + unsigned int val; + + ret = regmap_read(lmu->regmap, reg, &val); + if (ret < 0) + return ret; + + *read = (u8)val; + return 0; +} +EXPORT_SYMBOL_GPL(ti_lmu_read_byte); + +int ti_lmu_write_byte(struct ti_lmu *lmu, u8 reg, u8 data) +{ + return regmap_write(lmu->regmap, reg, data); +} +EXPORT_SYMBOL_GPL(ti_lmu_write_byte); + +int ti_lmu_update_bits(struct ti_lmu *lmu, u8 reg, u8 mask, u8 data) +{ + return regmap_update_bits(lmu->regmap, reg, mask, data); +} +EXPORT_SYMBOL_GPL(ti_lmu_update_bits); + +/* + * LMU backlight and LED devices use shared max current table. + * This function finds appropriate register index and return it. + */ +enum ti_lmu_max_current ti_lmu_get_current_code(u32 imax_microamp) +{ + u8 imax_milliamp = imax_microamp / 1000; + + const enum ti_lmu_max_current imax_table[] = { + LMU_IMAX_6mA, LMU_IMAX_7mA, LMU_IMAX_8mA, LMU_IMAX_9mA, + LMU_IMAX_10mA, LMU_IMAX_11mA, LMU_IMAX_12mA, LMU_IMAX_13mA, + LMU_IMAX_14mA, LMU_IMAX_15mA, LMU_IMAX_16mA, LMU_IMAX_17mA, + LMU_IMAX_18mA, LMU_IMAX_19mA, LMU_IMAX_20mA, LMU_IMAX_21mA, + LMU_IMAX_22mA, LMU_IMAX_23mA, LMU_IMAX_24mA, LMU_IMAX_25mA, + LMU_IMAX_26mA, LMU_IMAX_27mA, LMU_IMAX_28mA, LMU_IMAX_29mA, + }; + + /* Valid range is from 5mA to 30mA */ + if (imax_milliamp <= 5) + return LMU_IMAX_5mA; + + if (imax_milliamp >= 30) + return LMU_IMAX_30mA; + + return imax_table[imax_milliamp - LMU_IMAX_OFFSET]; +} +EXPORT_SYMBOL_GPL(ti_lmu_get_current_code); + +static int ti_lmu_enable_hw(struct ti_lmu *lmu, enum ti_lmu_id id) +{ + int ret; + + if (gpio_is_valid(lmu->en_gpio)) { + ret = devm_gpio_request_one(lmu->dev, lmu->en_gpio, + GPIOF_OUT_INIT_HIGH, "lmu_hwen"); + if (ret) { + dev_err(lmu->dev, "Can not request enable GPIO: %d\n", + ret); + return ret; + } + } + + /* Delay about 1ms after HW enable pin control */ + usleep_range(1000, 1500); + + /* LM3631 has additional power up sequence - enable LCD_EN bit. */ + if (id == LM3631) { + return ti_lmu_update_bits(lmu, LM3631_REG_DEVCTRL, + LM3631_LCD_EN_MASK, + LM3631_LCD_EN_MASK); + } + + return 0; +} + +static void ti_lmu_disable_hw(struct ti_lmu *lmu) +{ + if (gpio_is_valid(lmu->en_gpio)) + gpio_set_value(lmu->en_gpio, 0); +} + +static struct mfd_cell lm3532_devices[] = { + { + .name = "lm3532-backlight", + .of_compatible = "ti,lm3532-backlight", + }, +}; + +#define LM363X_REGULATOR(_id) \ +{ \ + .name = "lm363x-regulator", \ + .id = _id, \ + .of_compatible = "ti,lm363x-regulator", \ +} \ + +static struct mfd_cell lm3631_devices[] = { + /* 5 regulators */ + LM363X_REGULATOR(LM3631_BOOST), + LM363X_REGULATOR(LM3631_LDO_CONT), + LM363X_REGULATOR(LM3631_LDO_OREF), + LM363X_REGULATOR(LM3631_LDO_POS), + LM363X_REGULATOR(LM3631_LDO_NEG), + /* Backlight */ + { + .name = "lm3631-backlight", + .of_compatible = "ti,lm3631-backlight", + }, +}; + +static struct mfd_cell lm3632_devices[] = { + /* 3 regulators */ + LM363X_REGULATOR(LM3632_BOOST), + LM363X_REGULATOR(LM3632_LDO_POS), + LM363X_REGULATOR(LM3632_LDO_NEG), + /* Backlight */ + { + .name = "lm3632-backlight", + .of_compatible = "ti,lm3632-backlight", + }, +}; + +static struct mfd_cell lm3633_devices[] = { + /* Backlight */ + { + .name = "lm3633-backlight", + .of_compatible = "ti,lm3633-backlight", + }, + /* LED */ + { + .name = "lm3633-leds", + .of_compatible = "ti,lm3633-leds", + }, + /* HWMON for opened/shorted circuit detection */ + { + .name = "ti-lmu-hwmon", + .of_compatible = "ti,lm3633-hwmon", + }, +}; + +static struct mfd_cell lm3695_devices[] = { + { + .name = "lm3695-backlight", + .of_compatible = "ti,lm3695-backlight", + }, +}; + +static struct mfd_cell lm3697_devices[] = { + /* Backlight */ + { + .name = "lm3697-backlight", + .of_compatible = "ti,lm3697-backlight", + }, + /* HWMON for opened/shorted circuit detection */ + { + .name = "ti-lmu-hwmon", + .of_compatible = "ti,lm3697-hwmon", + }, +}; + +#define TI_LMU_DATA(chip, max_reg) \ +static const struct ti_lmu_data chip##_data = \ +{ \ + .cells = chip##_devices, \ + .num_cells = ARRAY_SIZE(chip##_devices),\ + .max_register = max_reg, \ +} \ + +TI_LMU_DATA(lm3532, LM3532_MAX_REG); /* lm3532_data */ +TI_LMU_DATA(lm3631, LM3631_MAX_REG); /* lm3631_data */ +TI_LMU_DATA(lm3632, LM3632_MAX_REG); /* lm3632_data */ +TI_LMU_DATA(lm3633, LM3633_MAX_REG); /* lm3633_data */ +TI_LMU_DATA(lm3695, LM3695_MAX_REG); /* lm3695_data */ +TI_LMU_DATA(lm3697, LM3697_MAX_REG); /* lm3697_data */ + +static const struct of_device_id ti_lmu_of_match[] = { + { .compatible = "ti,lm3532", .data = &lm3532_data }, + { .compatible = "ti,lm3631", .data = &lm3631_data }, + { .compatible = "ti,lm3632", .data = &lm3632_data }, + { .compatible = "ti,lm3633", .data = &lm3633_data }, + { .compatible = "ti,lm3695", .data = &lm3695_data }, + { .compatible = "ti,lm3697", .data = &lm3697_data }, + { } +}; +MODULE_DEVICE_TABLE(of, ti_lmu_of_match); + +static int ti_lmu_probe(struct i2c_client *cl, const struct i2c_device_id *id) +{ + struct device *dev = &cl->dev; + const struct of_device_id *match; + const struct ti_lmu_data *data; + struct regmap_config regmap_cfg; + struct ti_lmu *lmu; + int ret; + + match = of_match_device(ti_lmu_of_match, dev); + if (!match) + return -ENODEV; + /* + * Get device specific data from of_match table. + * This data is defined by using TI_LMU_DATA() macro. + */ + data = (struct ti_lmu_data *)match->data; + + lmu = devm_kzalloc(dev, sizeof(*lmu), GFP_KERNEL); + if (!lmu) + return -ENOMEM; + + lmu->dev = &cl->dev; + + /* Setup regmap */ + memset(®map_cfg, 0, sizeof(struct regmap_config)); + regmap_cfg.reg_bits = 8; + regmap_cfg.val_bits = 8; + regmap_cfg.name = id->name; + regmap_cfg.max_register = data->max_register; + + lmu->regmap = devm_regmap_init_i2c(cl, ®map_cfg); + if (IS_ERR(lmu->regmap)) + return PTR_ERR(lmu->regmap); + + /* HW enable pin control and additional power up sequence if required */ + lmu->en_gpio = of_get_named_gpio(dev->of_node, "enable-gpios", 0); + ret = ti_lmu_enable_hw(lmu, id->driver_data); + if (ret) + return ret; + + /* + * Fault circuit(opened/shorted) can be detected by ti-lmu-hwmon. + * After fault detection is done, some devices should re-initialize + * configuration. The notifier enables such kind of handling. + */ + BLOCKING_INIT_NOTIFIER_HEAD(&lmu->notifier); + + i2c_set_clientdata(cl, lmu); + + return mfd_add_devices(lmu->dev, 0, data->cells, + data->num_cells, NULL, 0, NULL); +} + +static int ti_lmu_remove(struct i2c_client *cl) +{ + struct ti_lmu *lmu = i2c_get_clientdata(cl); + + ti_lmu_disable_hw(lmu); + mfd_remove_devices(lmu->dev); + return 0; +} + +static const struct i2c_device_id ti_lmu_ids[] = { + { "lm3532", LM3532 }, + { "lm3631", LM3631 }, + { "lm3632", LM3632 }, + { "lm3633", LM3633 }, + { "lm3695", LM3695 }, + { "lm3697", LM3697 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, ti_lmu_ids); + +static struct i2c_driver ti_lmu_driver = { + .probe = ti_lmu_probe, + .remove = ti_lmu_remove, + .driver = { + .name = "ti-lmu", + .of_match_table = ti_lmu_of_match, + }, + .id_table = ti_lmu_ids, +}; + +module_i2c_driver(ti_lmu_driver); + +MODULE_DESCRIPTION("TI LMU MFD Core Driver"); +MODULE_AUTHOR("Milo Kim"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/mfd/ti-lmu-register.h b/include/linux/mfd/ti-lmu-register.h new file mode 100644 index 0000000..39f5771 --- /dev/null +++ b/include/linux/mfd/ti-lmu-register.h @@ -0,0 +1,277 @@ +/* + * TI LMU(Lighting Management Unit) Device Register Map + * + * Copyright 2015 Texas Instruments + * + * Author: Milo Kim + * + * 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_REGISTER_H__ +#define __MFD_TI_LMU_REGISTER_H__ + +#include + +/* LM3532 */ +#define LM3532_REG_OUTPUT_CFG 0x10 +#define LM3532_ILED1_CFG_MASK 0x03 +#define LM3532_ILED2_CFG_MASK 0x0C +#define LM3532_ILED3_CFG_MASK 0x30 +#define LM3532_ILED1_CFG_SHIFT 0 +#define LM3532_ILED2_CFG_SHIFT 2 +#define LM3532_ILED3_CFG_SHIFT 4 + +#define LM3532_REG_RAMPUP 0x12 +#define LM3532_REG_RAMPDN LM3532_REG_RAMPUP +#define LM3532_RAMPUP_MASK 0x07 +#define LM3532_RAMPUP_SHIFT 0 +#define LM3532_RAMPDN_MASK 0x38 +#define LM3532_RAMPDN_SHIFT 3 + +#define LM3532_REG_ENABLE 0x1D + +#define LM3532_REG_PWM_CFG_BASE 0x13 +#define LM3532_PWM_SEL_A_MASK 0x05 /* zone 0 */ +#define LM3532_PWM_SEL_B_MASK 0x09 /* zone 1 */ +#define LM3532_PWM_SEL_C_MASK 0x11 /* zone 2 */ +#define LM3532_PWM_SEL_A_SHIFT 2 +#define LM3532_PWM_SEL_B_SHIFT 3 +#define LM3532_PWM_SEL_C_SHIFT 4 + +#define LM3532_REG_ZONE_CFG_A 0x16 +#define LM3532_REG_ZONE_CFG_B 0x18 +#define LM3532_REG_ZONE_CFG_C 0x1A +#define LM3532_ZONE_CFG_MASK (BIT(2) | BIT(3) | BIT(4)) +#define LM3532_ZONE_CFG_SHIFT 2 + +#define LM3532_REG_IMAX_A 0x17 +#define LM3532_REG_IMAX_B 0x19 +#define LM3532_REG_IMAX_C 0x1B + +#define LM3532_REG_BRT_A 0x70 /* zone 0 */ +#define LM3532_REG_BRT_B 0x76 /* zone 1 */ +#define LM3532_REG_BRT_C 0x7C /* zone 2 */ + +#define LM3532_MAX_REG 0x7E + +/* LM3631 */ +#define LM3631_REG_DEVCTRL 0x00 +#define LM3631_LCD_EN_MASK BIT(1) +#define LM3631_BL_EN_MASK BIT(0) + +#define LM3631_REG_BRT_LSB 0x01 +#define LM3631_BRT_LSB_MASK (BIT(0) | BIT(1) | BIT(2)) +#define LM3631_REG_BRT_MSB 0x02 +#define LM3631_BRT_MSB_SHIFT 3 + +#define LM3631_REG_BL_CFG 0x06 +#define LM3631_BL_STRING_MASK BIT(3) +#define LM3631_BL_TWO_STRINGS 0 +#define LM3631_BL_ONE_STRING BIT(3) +#define LM3631_MAP_MASK BIT(5) +#define LM3631_EXPONENTIAL_MAP 0 + +#define LM3631_REG_BRT_MODE 0x08 +#define LM3631_EN_SLOPE_MASK BIT(1) +#define LM3631_MODE_MASK (BIT(2) | BIT(3)) +#define LM3631_MODE_I2C 0 +#define LM3631_MODE_PWM BIT(2) +#define LM3631_MODE_COMB1 BIT(3) +#define LM3631_MODE_COMB2 (BIT(2) | BIT(3)) + +#define LM3631_REG_SLOPE 0x09 +#define LM3631_SLOPE_MASK 0xF0 +#define LM3631_SLOPE_SHIFT 4 + +#define LM3631_REG_LDO_CTRL1 0x0A +#define LM3631_EN_OREF_MASK BIT(0) +#define LM3631_EN_VNEG_MASK BIT(1) +#define LM3631_EN_VPOS_MASK BIT(2) + +#define LM3631_REG_LDO_CTRL2 0x0B +#define LM3631_EN_CONT_MASK BIT(0) + +#define LM3631_REG_VOUT_CONT 0x0C +#define LM3631_VOUT_CONT_MASK (BIT(6) | BIT(7)) + +#define LM3631_REG_VOUT_BOOST 0x0C +#define LM3631_REG_VOUT_POS 0x0D +#define LM3631_REG_VOUT_NEG 0x0E +#define LM3631_REG_VOUT_OREF 0x0F +#define LM3631_VOUT_MASK 0x3F + +#define LM3631_REG_ENTIME_VCONT 0x0B +#define LM3631_ENTIME_CONT_MASK 0x70 + +#define LM3631_REG_ENTIME_VOREF 0x0F +#define LM3631_REG_ENTIME_VPOS 0x10 +#define LM3631_REG_ENTIME_VNEG 0x11 +#define LM3631_ENTIME_MASK 0xF0 +#define LM3631_ENTIME_SHIFT 4 + +#define LM3631_MAX_REG 0x16 + +/* LM3632 */ +#define LM3632_REG_CONFIG1 0x02 +#define LM3632_OVP_MASK (BIT(5) | BIT(6) | BIT(7)) +#define LM3632_OVP_25V BIT(6) + +#define LM3632_REG_CONFIG2 0x03 +#define LM3632_SWFREQ_MASK BIT(7) +#define LM3632_SWFREQ_1MHZ BIT(7) + +#define LM3632_REG_BRT_LSB 0x04 +#define LM3632_BRT_LSB_MASK (BIT(0) | BIT(1) | BIT(2)) +#define LM3632_REG_BRT_MSB 0x05 +#define LM3632_BRT_MSB_SHIFT 3 + +#define LM3632_REG_IO_CTRL 0x09 +#define LM3632_PWM_MASK BIT(6) +#define LM3632_I2C_MODE 0 +#define LM3632_PWM_MODE BIT(6) + +#define LM3632_REG_ENABLE 0x0A +#define LM3632_BL_EN_MASK BIT(0) +#define LM3632_BL_STRING_MASK (BIT(3) | BIT(4)) +#define LM3632_BL_ONE_STRING BIT(4) +#define LM3632_BL_TWO_STRINGS 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_REG_BANK_SEL 0x11 + +#define LM3633_REG_BL0_RAMPUP 0x12 +#define LM3633_REG_BL0_RAMPDN LM3633_REG_BL0_RAMPUP +#define LM3633_REG_BL1_RAMPUP 0x13 +#define LM3633_REG_BL1_RAMPDN LM3633_REG_BL1_RAMPUP +#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_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_BOOST_OVP_MASK (BIT(1) | BIT(2)) +#define LM3633_BOOST_OVP_40V 0x6 + +#define LM3633_REG_PWM_CFG 0x2F + +#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_BRT_HVLED_LSB_MASK (BIT(0) | BIT(1) | BIT(2)) +#define LM3633_BRT_HVLED_MSB_SHIFT 3 + +#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_STRING_MASK BIT(3) +#define LM3695_BL_TWO_STRINGS 0 +#define LM3695_BL_ONE_STRING BIT(3) +#define LM3695_BRT_RW_MASK BIT(2) +#define LM3695_BL_EN_MASK BIT(0) + +#define LM3695_REG_BRT_LSB 0x13 +#define LM3695_BRT_LSB_MASK (BIT(0) | BIT(1) | BIT(2)) +#define LM3695_REG_BRT_MSB 0x14 +#define LM3695_BRT_MSB_SHIFT 3 + +#define LM3695_MAX_REG 0x14 + +/* LM3697 */ +#define LM3697_REG_HVLED_OUTPUT_CFG 0x10 + +#define LM3697_REG_BL0_RAMPUP 0x11 +#define LM3697_REG_BL0_RAMPDN LM3697_REG_BL0_RAMPUP +#define LM3697_REG_BL1_RAMPUP 0x12 +#define LM3697_REG_BL1_RAMPDN LM3697_REG_BL1_RAMPUP +#define LM3697_BL_RAMPUP_MASK 0xF0 +#define LM3697_BL_RAMPUP_SHIFT 4 +#define LM3697_BL_RAMPDN_MASK 0x0F +#define LM3697_BL_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_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_BRT_LSB_MASK (BIT(0) | BIT(1) | BIT(2)) +#define LM3697_BRT_MSB_SHIFT 3 + +#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 diff --git a/include/linux/mfd/ti-lmu.h b/include/linux/mfd/ti-lmu.h new file mode 100644 index 0000000..eeb6b9e --- /dev/null +++ b/include/linux/mfd/ti-lmu.h @@ -0,0 +1,81 @@ +/* + * TI LMU(Lighting Management Unit) Devices + * + * Copyright 2015 Texas Instruments + * + * Author: Milo Kim + * + * 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 +#include + +/* Notifier event */ +#define LMU_EVENT_HWMON_DONE 0x01 + +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; +}; + +int ti_lmu_read_byte(struct ti_lmu *lmu, u8 reg, u8 *read); +int ti_lmu_write_byte(struct ti_lmu *lmu, u8 reg, u8 data); +int ti_lmu_update_bits(struct ti_lmu *lmu, u8 reg, u8 mask, u8 data); +enum ti_lmu_max_current ti_lmu_get_current_code(u32 imax_microamp); +#endif -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/