Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932694Ab3HNOzZ (ORCPT ); Wed, 14 Aug 2013 10:55:25 -0400 Received: from mail1.ams.com ([212.166.112.31]:33408 "EHLO mail1.ams.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932592Ab3HNOzX (ORCPT ); Wed, 14 Aug 2013 10:55:23 -0400 X-IronPort-AV: E=Sophos;i="4.89,877,1367964000"; d="scan'208";a="4151234" From: Florian Lobmaier To: linux-kernel@vger.kernel.org Cc: sameo@linux.intel.com, lee.jones@linaro.org, Florian Lobmaier Subject: [PATCH 1/4] added support for ams AS3722 PMIC in mfd Date: Wed, 14 Aug 2013 16:54:55 +0200 Message-Id: <1376492098-15672-1-git-send-email-florian.lobmaier@ams.com> X-Mailer: git-send-email 1.7.2.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 22407 Lines: 807 now using git send-email and splitted mfd patch into multiple patches (4). Suggestions from 23.05.2013 added. Signed-off-by: Florian Lobmaier --- drivers/mfd/Kconfig | 15 + drivers/mfd/Makefile | 1 + drivers/mfd/as3722-core.c | 747 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 763 insertions(+), 0 deletions(-) create mode 100644 drivers/mfd/as3722-core.c diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index aecd6dd..a02777c 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -27,6 +27,21 @@ config MFD_AS3711 help Support for the AS3711 PMIC from AMS +config MFD_AS3722 + tristate "Support for ams AS3722 PMIC" + select MFD_CORE + select REGMAP_I2C + select REGMAP_IRQ + depends on I2C=y + help + Core support for the ams AS3722 PMIC. Additional + drivers must be enabled in order to use the functionality of the + device. + Related drivers are: + * ams AS3722 PMIC regulators + * ams AS3722 GPIO + * ams AS3722 RTC + config PMIC_ADP5520 bool "Analog Devices ADP5520/01 MFD PMIC Core Support" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 3c90051..358e46e 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -159,3 +159,4 @@ obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o obj-$(CONFIG_VEXPRESS_CONFIG) += vexpress-config.o vexpress-sysreg.o obj-$(CONFIG_MFD_RETU) += retu-mfd.o obj-$(CONFIG_MFD_AS3711) += as3711.o +obj-$(CONFIG_MFD_AS3722) += as3722-core.o as3722-regmap.o diff --git a/drivers/mfd/as3722-core.c b/drivers/mfd/as3722-core.c new file mode 100644 index 0000000..ddb39c7 --- /dev/null +++ b/drivers/mfd/as3722-core.c @@ -0,0 +1,747 @@ +/* + * as3722-core.c - core driver for AS3722 PMICs + * + * Copyright (C) 2013 ams AG + * + * Author: Florian Lobmaier + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +enum as3722_ids { + AS3722_GPIO_ID, + AS3722_REGULATOR_ID, + AS3722_RTC_ID, + AS3722_WATCHDOG_ID, + AS3722_PWM_ID, +}; + +static const struct resource as3722_rtc_resource[] = { + { + .name = "as3722-rtc-alarm", + .start = AS3722_IRQ_RTC_ALARM, + .end = AS3722_IRQ_RTC_ALARM, + .flags = IORESOURCE_IRQ, + }, +}; + +static const struct resource as3722_wdt_resource[] = { + { + .name = "as3722-watchdog-ping", + .start = AS3722_IRQ_WATCHDOG, + .end = AS3722_IRQ_WATCHDOG, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct mfd_cell as3722_devs[] = { + { + .name = "as3722-gpio", + .id = AS3722_GPIO_ID, + }, + { + .name = "as3722-regulator", + .id = AS3722_REGULATOR_ID, + }, + { + .name = "as3722-rtc", + .num_resources = ARRAY_SIZE(as3722_rtc_resource), + .resources = as3722_rtc_resource, + .id = AS3722_RTC_ID, + }, + { + .name = "as3722-wdt", + .num_resources = ARRAY_SIZE(as3722_wdt_resource), + .resources = as3722_wdt_resource, + .id = AS3722_WATCHDOG_ID, + }, + { + .name = "as3722-pwm", + .id = AS3722_PWM_ID, + }, +}; + +static const struct regmap_irq as3722_irqs[] = { + /* INT1 IRQs */ + [AS3722_IRQ_LID] = { + .mask = AS3722_IRQ_MASK_LID, + }, + [AS3722_IRQ_ACOK] = { + .mask = AS3722_IRQ_MASK_ACOK, + }, + [AS3722_IRQ_ENABLE1] = { + .mask = AS3722_IRQ_MASK_ENABLE1, + }, + [AS3722_IRQ_SD0] = { + .mask = AS3722_IRQ_MASK_SD0, + }, + [AS3722_IRQ_ONKEY_LONG] = { + .mask = AS3722_IRQ_MASK_ONKEY_LONG, + }, + [AS3722_IRQ_ONKEY] = { + .mask = AS3722_IRQ_MASK_ONKEY, + }, + [AS3722_IRQ_OVTMP] = { + .mask = AS3722_IRQ_MASK_OVTMP, + }, + [AS3722_IRQ_LOWBAT] = { + .mask = AS3722_IRQ_MASK_LOWBAT, + }, + [AS3722_IRQ_RTC_REP] = { + .mask = AS3722_IRQ_MASK_RTC_REP, + .reg_offset = 1, + }, + [AS3722_IRQ_RTC_ALARM] = { + .mask = AS3722_IRQ_MASK_RTC_ALARM, + .reg_offset = 2, + }, + [AS3722_IRQ_WATCHDOG] = { + .mask = AS3722_IRQ_MASK_WATCHDOG, + .reg_offset = 2, + }, + [AS3722_IRQ_ADC] = { + .mask = AS3722_IRQ_MASK_ADC, + .reg_offset = 3, + }, + [AS3722_IRQ_GPIO1] = { + .mask = AS3722_IRQ_MASK_GPIO1, + .reg_offset = 2, + }, + [AS3722_IRQ_GPIO2] = { + .mask = AS3722_IRQ_MASK_GPIO2, + .reg_offset = 2, + }, + [AS3722_IRQ_GPIO3] = { + .mask = AS3722_IRQ_MASK_GPIO3, + .reg_offset = 2, + }, + [AS3722_IRQ_GPIO4] = { + .mask = AS3722_IRQ_MASK_GPIO4, + .reg_offset = 2, + }, + [AS3722_IRQ_GPIO5] = { + .mask = AS3722_IRQ_MASK_GPIO5, + .reg_offset = 2, + }, + [AS3722_IRQ_TEMP_SD0_SHUTDOWN] = { + .mask = AS3722_IRQ_MASK_TEMP_SD0_SHUTDOWN, + .reg_offset = 3, + }, + [AS3722_IRQ_TEMP_SD1_SHUTDOWN] = { + .mask = AS3722_IRQ_MASK_TEMP_SD1_SHUTDOWN, + .reg_offset = 3, + }, + [AS3722_IRQ_TEMP_SD6_SHUTDOWN] = { + .mask = AS3722_IRQ_MASK_TEMP_SD6_SHUTDOWN, + .reg_offset = 3, + }, + [AS3722_IRQ_TEMP_SD0_ALARM] = { + .mask = AS3722_IRQ_MASK_TEMP_SD0_ALARM, + .reg_offset = 3, + }, + [AS3722_IRQ_TEMP_SD1_ALARM] = { + .mask = AS3722_IRQ_MASK_TEMP_SD1_ALARM, + .reg_offset = 3, + }, + [AS3722_IRQ_TEMP_SD6_ALARM] = { + .mask = AS3722_IRQ_MASK_TEMP_SD6_ALARM, + .reg_offset = 3, + }, +}; + +static struct regmap_irq_chip as3722_irq_chip = { + .name = "as3722", + .irqs = as3722_irqs, + .num_irqs = ARRAY_SIZE(as3722_irqs), + .num_regs = 4, + .status_base = AS3722_INTERRUPTSTATUS1_REG, + .mask_base = AS3722_INTERRUPTMASK1_REG, + .wake_base = 1, +}; + +static void as3722_reg_init(struct as3722 *as3722, + struct as3722_reg_init *reg_data) +{ + int ret; + + while (reg_data->reg != AS3722_REG_INIT_TERMINATE) { + ret = as3722_reg_write(as3722, reg_data->reg, reg_data->val); + if (ret) { + dev_err(as3722->dev, + "reg setup failed: %d\n", ret); + return; + } + reg_data++; + } +} + +int as3722_read_adc(struct as3722 *as3722, + enum as3722_adc_channel channel, + enum as3722_adc_source source, + enum as3722_adc_voltange_range voltage_range) +{ + int result = 0; + unsigned int try_counter = 0; + u32 val; + + mutex_lock(&as3722->adc_mutex); + /* select source */ + as3722_set_bits(as3722, + AS3722_ADC0_CONTROL_REG + channel, + AS3722_ADC_MASK_SOURCE_SELECT, + source); + /* select voltage range */ + as3722_set_bits(as3722, + AS3722_ADC0_CONTROL_REG + channel, + AS3722_ADC_MASK_VOLTAGE_RANGE, + voltage_range << AS3722_ADC_SHIFT_VOLTAGE_RANGE); + /* start conversion */ + as3722_set_bits(as3722, + AS3722_ADC0_CONTROL_REG + channel, + AS3722_ADC_MASK_CONV_START, + AS3722_ADC_BIT_CONV_START); + + /* + * check if result ready + * as no HW interrupt is available we have to poll + * the status bit. The result is available on the next I2C read + * at 400kHz I2C speed, so no threaded polling required. + */ + try_counter = 0; + do { + /* 2*channel for correct channel nr.1 read offset */ + as3722_reg_read(as3722, + AS3722_ADC0_MSB_RESULT_REG + 2*channel, + &val); + /* check if conversion is ready */ + if ((val & AS3722_ADC_MASK_CONV_NOTREADY) + != AS3722_ADC_BIT_CONV_NOTREADY + ) + break; /* conversion ready */ + /* + * if not, we try max. 10 times which ensures + * that it works up to 4MHz I2C speed and that + * we stop if something goes wrong + */ + try_counter++; + } while (try_counter < 10); + + /* read result, MSB byte already available from last read */ + result = ((val & AS3722_ADC_MASK_MSB_VAL) << 8); + as3722_reg_read(as3722, + AS3722_ADC0_LSB_RESULT_REG + 2*channel, + &val); + result += (val & AS3722_ADC_MASK_LSB_VAL); + + mutex_unlock(&as3722->adc_mutex); + + return result; +} +EXPORT_SYMBOL_GPL(as3722_read_adc); + +static irqreturn_t as3722_onkey_press_irq(int irq, void *irq_data) +{ + struct as3722 *as3722 = irq_data; + + dev_dbg(as3722->dev, "AS3722 ONKEY pressed\n"); + return IRQ_HANDLED; +} + +static irqreturn_t as3722_onkey_lpress_irq(int irq, void *irq_data) +{ + struct as3722 *as3722 = irq_data; + + dev_dbg(as3722->dev, "AS3722 ONKEY long pressed\n"); + return IRQ_HANDLED; +} + +static irqreturn_t as3722_temp_sd0_shutdown_irq(int irq, void *irq_data) +{ + struct as3722 *as3722 = irq_data; + + dev_dbg(as3722->dev, "AS3722 temp SD0 shutdown triggered\n"); + return IRQ_HANDLED; +} + +static irqreturn_t as3722_temp_sd1_shutdown_irq(int irq, void *irq_data) +{ + struct as3722 *as3722 = irq_data; + + dev_dbg(as3722->dev, "AS3722 temp SD1 shutdown triggered\n"); + return IRQ_HANDLED; +} + +static irqreturn_t as3722_temp_sd6_shutdown_irq(int irq, void *irq_data) +{ + struct as3722 *as3722 = irq_data; + + dev_dbg(as3722->dev, "AS3722 temp SD6 shutdown triggered\n"); + return IRQ_HANDLED; +} + +static irqreturn_t as3722_temp_sd0_alarm_irq(int irq, void *irq_data) +{ + struct as3722 *as3722 = irq_data; + + dev_dbg(as3722->dev, "AS3722 temp SD0 alarm triggered\n"); + return IRQ_HANDLED; +} + +static irqreturn_t as3722_temp_sd1_alarm_irq(int irq, void *irq_data) +{ + struct as3722 *as3722 = irq_data; + + dev_dbg(as3722->dev, "AS3722 temp SD1 alarm triggered\n"); + return IRQ_HANDLED; +} + +static irqreturn_t as3722_temp_sd6_alarm_irq(int irq, void *irq_data) +{ + struct as3722 *as3722 = irq_data; + + dev_dbg(as3722->dev, "AS3722 temp SD6 alarm triggered\n"); + return IRQ_HANDLED; +} + +static irqreturn_t as3722_ovtmp_alarm_irq(int irq, void *irq_data) +{ + struct as3722 *as3722 = irq_data; + + dev_dbg(as3722->dev, "AS3722 ovtmp alarm triggered\n"); + return IRQ_HANDLED; +} + +static int as3722_init(struct as3722 *as3722, + struct as3722_platform_data *pdata, int irq) +{ + u32 reg; + int ret; + int irq_onkey, irq_onkeylong; + int irq_temp_sd0_shutdown, irq_temp_sd1_shutdown, irq_temp_sd6_shutdown; + int irq_temp_sd0_alarm, irq_temp_sd1_alarm, irq_temp_sd6_alarm; + int irq_ovtmp_alarm; + + /* Check that this is actually a AS3722 */ + ret = regmap_read(as3722->regmap, AS3722_ADDR_ASIC_ID1, ®); + if (ret != 0) { + dev_err(as3722->dev, + "Chip ID register read failed\n"); + return ret; + } + if (reg != AS3722_DEVICE_ID) { + dev_err(as3722->dev, + "Device is not an AS3722, ID is 0x%x\n", + reg); + return -ENODEV; + } + + ret = regmap_read(as3722->regmap, AS3722_ADDR_ASIC_ID2, ®); + if (ret != 0) { + dev_err(as3722->dev, + "ID2 register read failed: %d\n", + ret); + return ret; + } + dev_info(as3722->dev, "AS3722 with revision %x found\n", reg); + + /* init adc mutex */ + mutex_init(&as3722->adc_mutex); + + /* request irqs for onkey and over temperature */ + if (as3722->irq_data) { + irq_onkey = regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_ONKEY); + ret = request_threaded_irq(irq_onkey, + NULL, + as3722_onkey_press_irq, + pdata->irq_type, + "onkey-press", + as3722); + if (ret < 0) + dev_warn(as3722->dev, + "Failed to request ONKEY IRQ: %d\n", + ret); + + irq_onkeylong = regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_ONKEY_LONG); + ret = request_threaded_irq(irq_onkeylong, + NULL, + as3722_onkey_lpress_irq, + pdata->irq_type, + "onkey-lpress", + as3722); + if (ret < 0) + dev_warn(as3722->dev, + "Failed to request ONKEY_LONG IRQ: %d\n", + ret); + + irq_temp_sd0_shutdown = + regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_TEMP_SD0_SHUTDOWN); + ret = request_threaded_irq(irq_temp_sd0_shutdown, + NULL, + as3722_temp_sd0_shutdown_irq, + pdata->irq_type, + "temp sd0 shutdown", + as3722); + if (ret < 0) + dev_warn(as3722->dev, + "Failed to request temp sd0 shutdown IRQ:" + " %d\n", + ret); + irq_temp_sd1_shutdown = + regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_TEMP_SD1_SHUTDOWN); + ret = request_threaded_irq(irq_temp_sd1_shutdown, + NULL, + as3722_temp_sd1_shutdown_irq, + pdata->irq_type, + "temp sd1 shutdown", + as3722); + if (ret < 0) + dev_warn(as3722->dev, + "Failed to request temp sd1 shutdown IRQ:" + " %d\n", + ret); + irq_temp_sd6_shutdown = + regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_TEMP_SD6_SHUTDOWN); + ret = request_threaded_irq(irq_temp_sd6_shutdown, + NULL, + as3722_temp_sd6_shutdown_irq, + pdata->irq_type, + "temp sd6 shutdown", + as3722); + if (ret < 0) + dev_warn(as3722->dev, + "Failed to request temp sd6 shutdown IRQ:" + " %d\n", + ret); + irq_temp_sd0_alarm = + regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_TEMP_SD0_ALARM); + ret = request_threaded_irq(irq_temp_sd0_alarm, + NULL, + as3722_temp_sd0_alarm_irq, + pdata->irq_type, + "temp sd0 alarm", + as3722); + if (ret < 0) + dev_warn(as3722->dev, + "Failed to request temp sd0 alarm IRQ:" + " %d\n", + ret); + + irq_temp_sd1_alarm = + regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_TEMP_SD1_ALARM); + ret = request_threaded_irq(irq_temp_sd1_alarm, + NULL, + as3722_temp_sd1_alarm_irq, + pdata->irq_type, + "temp sd1 alarm", + as3722); + if (ret < 0) + dev_warn(as3722->dev, + "Failed to request temp sd1 alarm IRQ:" + " %d\n", + ret); + irq_temp_sd6_alarm = + regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_TEMP_SD6_ALARM); + ret = request_threaded_irq(irq_temp_sd6_alarm, + NULL, + as3722_temp_sd6_alarm_irq, + pdata->irq_type, + "temp sd6 alarm", + as3722); + if (ret < 0) + dev_warn(as3722->dev, + "Failed to request temp sd6 alarm IRQ:" + " %d\n", + ret); + + irq_ovtmp_alarm = + regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_OVTMP); + ret = request_threaded_irq(irq_ovtmp_alarm, + NULL, + as3722_ovtmp_alarm_irq, + pdata->irq_type, + "ovtmp alarm", + as3722); + if (ret < 0) + dev_warn(as3722->dev, + "Failed to request ovtmp alarm IRQ:" + " %d\n", + ret); + } + + /* do some initial platform register setup */ + if (pdata->core_init_data) + as3722_reg_init(as3722, pdata->core_init_data); + + /* initialise stby reg count variable, used in regulator */ + as3722->reg_stby_counter = 0; + + /* enable pullups if required */ + if (pdata->use_internal_int_pullup == 1) + as3722_set_bits(as3722, AS3722_IOVOLTAGE_REG, + AS3722_INT_PULLUP_MASK, + AS3722_INT_PULLUP_ON); + else + as3722_set_bits(as3722, AS3722_IOVOLTAGE_REG, + AS3722_INT_PULLUP_MASK, + AS3722_INT_PULLUP_OFF); + + if (pdata->use_internal_i2c_pullup) + as3722_set_bits(as3722, AS3722_IOVOLTAGE_REG, + AS3722_I2C_PULLUP_MASK, + AS3722_I2C_PULLUP_ON); + else + as3722_set_bits(as3722, AS3722_IOVOLTAGE_REG, + AS3722_I2C_PULLUP_MASK, + AS3722_I2C_PULLUP_OFF); + + /* enable1 pin standby configuration */ + if (pdata->enable1_deepsleep) + as3722_set_bits(as3722, AS3722_CTRL1_REG, + AS3722_ENABLE1_DEEPSLEEP_MASK, + AS3722_ENABLE1_DEEPSLEEP_ON); + else + as3722_set_bits(as3722, AS3722_CTRL1_REG, + AS3722_ENABLE1_DEEPSLEEP_MASK, + AS3722_ENABLE1_DEEPSLEEP_OFF); + + if (pdata->enable1_invert) + as3722_set_bits(as3722, AS3722_CTRL1_REG, + AS3722_ENABLE1_INVERT_MASK, + AS3722_ENABLE1_INVERT_ON); + else + as3722_set_bits(as3722, AS3722_CTRL1_REG, + AS3722_ENABLE1_INVERT_MASK, + AS3722_ENABLE1_INVERT_OFF); + + as3722_set_bits(as3722, AS3722_RESETTIMER_REG, + AS3722_OFF_DELAY_MASK, + pdata->off_delay << AS3722_OFF_DELAY_SHIFT); + + /* thermal shutdown control */ + as3722_set_bits(as3722, AS3722_OVERTEMPERATURE_CONTROL_REG, + AS3722_OVTMP_MASK, + pdata->mask_ovtemp << AS3722_OVTMP_SHIFT); + + /* overcurrent/powergood configuration */ + reg = (pdata->pg_sd6_vmask_time << AS3722_PG_SD6_VMASK_TIME_SHIFT) + & AS3722_PG_SD6_VMASK_TIME_MASK; + reg |= (pdata->sd6_lv_deb_time << AS3722_SD6_LV_DEB_SHIFT) + & AS3722_SD6_LV_DEB_MASK; + reg |= (pdata->sd1_lv_deb_time << AS3722_SD1_LV_DEB_SHIFT) + & AS3722_SD1_LV_DEB_MASK; + reg |= (pdata->sd0_lv_deb_time << AS3722_SD0_LV_DEB_SHIFT) + & AS3722_SD0_LV_DEB_MASK; + as3722_reg_write(as3722, AS3722_SD_LV_DEB_REG, reg); + + reg = (pdata->pg_vresfall_mask << 7) + & AS3722_PG_VRESFALL_MASK_MASK; + reg |= (pdata->pg_ovcurr_sd0_mask << 6) + & AS3722_PG_OVCURR_SD0_MASK_MASK; + reg |= (pdata->pg_pwrgood_sd0_mask << 5) + & AS3722_PG_PWRGOOD_SD0_MASK_MASK; + reg |= (pdata->pg_gpio5_mask << 4) + & AS3722_PG_GPIO5_MASK_MASK; + reg |= (pdata->pg_gpio4_mask << 3) + & AS3722_PG_GPIO4_MASK_MASK; + reg |= (pdata->pg_gpio3_mask << 2) + & AS3722_PG_GPIO3_MASK_MASK; + reg |= (pdata->pg_ac_ok_mask << 1) + & AS3722_PG_AC_OK_MASK_MASK; + reg |= (pdata->pg_ac_ok_inv) + & AS3722_PG_AC_OK_INV_MASK; + as3722_reg_write(as3722, AS3722_OC_PG_CONTROL_REG, reg); + + reg = (pdata->pg_ovcurr_sd6_mask << 7) + & AS3722_PG_OVCURR_SD6_MASK_MASK; + reg |= (pdata->pg_pwrgood_sd6_mask << 6) + & AS3722_PG_PWRGOOD_SD6_MASK_MASK; + reg |= (pdata->pg_sd6_ovc_alarm << 3) + & AS3722_PG_SD6_OVC_ALARM_MASK; + reg |= (pdata->pg_sd0_vmask_time << 1) + & AS3722_PG_SD0_VMASK_TIME_MASK; + reg |= (pdata->oc_pg_inv) + & AS3722_OC_PG_INV_MASK; + as3722_reg_write(as3722, AS3722_OC_PG_CONTROL2_REG, reg); + + /* enable 32kHz clock output if required */ + if (pdata->enable_clk32out_pin) + as3722_set_bits(as3722, AS3722_RTC_CONTROL_REG, + AS3722_CLK32OUT_ENABLE_MASK, + AS3722_CLK32OUT_ENABLE_ON); + else + as3722_set_bits(as3722, AS3722_RTC_CONTROL_REG, + AS3722_CLK32OUT_ENABLE_MASK, + AS3722_CLK32OUT_ENABLE_OFF); + return 0; +} + +static int as3722_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct as3722 *as3722; + struct as3722_platform_data *pdata; + int irq_flags; + int ret; + + pdata = dev_get_platdata(&i2c->dev); + if (!pdata) { + dev_err(&i2c->dev, "as3722 requires platform data\n"); + return -EINVAL; + } + + as3722 = devm_kzalloc(&i2c->dev, sizeof(struct as3722), GFP_KERNEL); + if (!as3722) + return -ENOMEM; + + as3722->dev = &i2c->dev; + as3722->chip_irq = i2c->irq; + i2c_set_clientdata(i2c, as3722); + + as3722->regmap = devm_regmap_init_i2c(i2c, &as3722_regmap_config); + if (IS_ERR(as3722->regmap)) { + ret = PTR_ERR(as3722->regmap); + dev_err(&i2c->dev, "regmap_init failed with err: %d\n", ret); + return ret; + } + + irq_flags = pdata->irq_type; + irq_flags |= IRQF_ONESHOT; + ret = regmap_add_irq_chip(as3722->regmap, as3722->chip_irq, + irq_flags, pdata->irq_base, &as3722_irq_chip, + &as3722->irq_data); + if (ret < 0) { + dev_err(as3722->dev, + "irq allocation failed for as3722 failed\n"); + return ret; + } + + ret = as3722_init(as3722, pdata, i2c->irq); + if (ret < 0) + return ret; + + ret = mfd_add_devices(&i2c->dev, + -1, + as3722_devs, + ARRAY_SIZE(as3722_devs), + NULL, + pdata->irq_base, + regmap_irq_get_domain(as3722->irq_data)); + if (ret) { + dev_err(as3722->dev, + "add mfd devices failed with err: %d\n", + ret); + return ret; + } + + dev_info(as3722->dev, + "AS3722 core driver initialized successfully\n"); + + return 0; +} + +static int as3722_i2c_remove(struct i2c_client *i2c) +{ + struct as3722 *as3722 = i2c_get_clientdata(i2c); + int irq_onkeylong, irq_onkey; + int irq_temp_sd0_shutdown, irq_temp_sd1_shutdown, irq_temp_sd6_shutdown; + int irq_temp_sd0_alarm, irq_temp_sd1_alarm, irq_temp_sd6_alarm; + int irq_ovtmp_alarm; + + irq_onkeylong = regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_ONKEY_LONG); + irq_onkey = regmap_irq_get_virq(as3722->irq_data, AS3722_IRQ_ONKEY); + irq_temp_sd0_shutdown = + regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_TEMP_SD0_SHUTDOWN); + irq_temp_sd1_shutdown = + regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_TEMP_SD1_SHUTDOWN); + irq_temp_sd6_shutdown = + regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_TEMP_SD6_SHUTDOWN); + irq_temp_sd0_alarm = + regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_TEMP_SD0_ALARM); + irq_temp_sd1_alarm = + regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_TEMP_SD1_ALARM); + irq_temp_sd6_alarm = + regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_TEMP_SD6_ALARM); + irq_ovtmp_alarm = + regmap_irq_get_virq(as3722->irq_data, + AS3722_IRQ_OVTMP); + + free_irq(irq_onkeylong, as3722); + free_irq(irq_onkey, as3722); + free_irq(irq_temp_sd0_shutdown, as3722); + free_irq(irq_temp_sd1_shutdown, as3722); + free_irq(irq_temp_sd6_shutdown, as3722); + free_irq(irq_temp_sd0_alarm, as3722); + free_irq(irq_temp_sd1_alarm, as3722); + free_irq(irq_temp_sd6_alarm, as3722); + free_irq(irq_ovtmp_alarm, as3722); + mfd_remove_devices(as3722->dev); + regmap_del_irq_chip(as3722->chip_irq, as3722->irq_data); + + return 0; +} + +static const struct i2c_device_id as3722_i2c_id[] = { + { "as3722", 0 }, + { } +}; + +MODULE_DEVICE_TABLE(i2c, as3722_i2c_id); + +static struct i2c_driver as3722_i2c_driver = { + .driver = { + .name = "as3722", + .owner = THIS_MODULE, + }, + .probe = as3722_i2c_probe, + .remove = as3722_i2c_remove, + .id_table = as3722_i2c_id, +}; + +module_i2c_driver(as3722_i2c_driver); + +MODULE_DESCRIPTION("I2C, IRQ and ADC support for AS3722 PMICs"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Florian Lobmaier "); -- 1.7.2.5 -- 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/