| /* |
| * Base driver for Marvell 88PM8607 |
| * |
| * Copyright (C) 2009 Marvell International Ltd. |
| * Haojian Zhuang <haojian.zhuang@marvell.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. |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/i2c.h> |
| #include <linux/irq.h> |
| #include <linux/interrupt.h> |
| #include <linux/platform_device.h> |
| #include <linux/mfd/core.h> |
| #include <linux/mfd/88pm860x.h> |
| #include <linux/regulator/machine.h> |
| |
| #define INT_STATUS_NUM 3 |
| |
| static struct resource io_parent = { |
| .start = 0, |
| .end = 0xffffffff, |
| .flags = IORESOURCE_IO, |
| }; |
| |
| static struct resource bk_resources[] __devinitdata = { |
| {PM8606_BACKLIGHT1, PM8606_BACKLIGHT1, "backlight-0", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8606_BACKLIGHT2, PM8606_BACKLIGHT2, "backlight-1", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8606_BACKLIGHT3, PM8606_BACKLIGHT3, "backlight-2", IORESOURCE_IO, |
| &io_parent,}, |
| }; |
| |
| static struct resource led_resources[] __devinitdata = { |
| {PM8606_LED1_RED, PM8606_LED1_RED, "led0-red", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8606_LED1_GREEN, PM8606_LED1_GREEN, "led0-green", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8606_LED1_BLUE, PM8606_LED1_BLUE, "led0-blue", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8606_LED2_RED, PM8606_LED2_RED, "led1-red", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8606_LED2_GREEN, PM8606_LED2_GREEN, "led1-green", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8606_LED2_BLUE, PM8606_LED2_BLUE, "led1-blue", IORESOURCE_IO, |
| &io_parent,}, |
| }; |
| |
| static struct resource regulator_resources[] __devinitdata = { |
| {PM8607_ID_BUCK1, PM8607_ID_BUCK1, "buck-1", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_BUCK2, PM8607_ID_BUCK2, "buck-2", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_BUCK3, PM8607_ID_BUCK3, "buck-3", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_LDO1, PM8607_ID_LDO1, "ldo-01", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_LDO2, PM8607_ID_LDO2, "ldo-02", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_LDO3, PM8607_ID_LDO3, "ldo-03", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_LDO4, PM8607_ID_LDO4, "ldo-04", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_LDO5, PM8607_ID_LDO5, "ldo-05", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_LDO6, PM8607_ID_LDO6, "ldo-06", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_LDO7, PM8607_ID_LDO7, "ldo-07", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_LDO8, PM8607_ID_LDO8, "ldo-08", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_LDO9, PM8607_ID_LDO9, "ldo-09", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_LDO10, PM8607_ID_LDO10, "ldo-10", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_LDO11, PM8607_ID_LDO11, "ldo-11", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_LDO12, PM8607_ID_LDO12, "ldo-12", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_LDO13, PM8607_ID_LDO13, "ldo-13", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_LDO14, PM8607_ID_LDO14, "ldo-14", IORESOURCE_IO, |
| &io_parent,}, |
| {PM8607_ID_LDO15, PM8607_ID_LDO15, "ldo-15", IORESOURCE_IO, |
| &io_parent,}, |
| }; |
| |
| static struct resource touch_resources[] __devinitdata = { |
| {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,}, |
| }; |
| |
| static struct resource onkey_resources[] __devinitdata = { |
| {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,}, |
| }; |
| |
| static struct resource codec_resources[] __devinitdata = { |
| /* Headset microphone insertion or removal */ |
| {PM8607_IRQ_MICIN, PM8607_IRQ_MICIN, "micin", IORESOURCE_IRQ,}, |
| /* Hook-switch press or release */ |
| {PM8607_IRQ_HOOK, PM8607_IRQ_HOOK, "hook", IORESOURCE_IRQ,}, |
| /* Headset insertion or removal */ |
| {PM8607_IRQ_HEADSET, PM8607_IRQ_HEADSET, "headset", IORESOURCE_IRQ,}, |
| /* Audio short */ |
| {PM8607_IRQ_AUDIO_SHORT, PM8607_IRQ_AUDIO_SHORT, "audio-short", IORESOURCE_IRQ,}, |
| }; |
| |
| static struct resource battery_resources[] __devinitdata = { |
| {PM8607_IRQ_CC, PM8607_IRQ_CC, "columb counter", IORESOURCE_IRQ,}, |
| {PM8607_IRQ_BAT, PM8607_IRQ_BAT, "battery", IORESOURCE_IRQ,}, |
| }; |
| |
| static struct resource charger_resources[] __devinitdata = { |
| {PM8607_IRQ_CHG, PM8607_IRQ_CHG, "charger detect", IORESOURCE_IRQ,}, |
| {PM8607_IRQ_CHG_DONE, PM8607_IRQ_CHG_DONE, "charging done", IORESOURCE_IRQ,}, |
| {PM8607_IRQ_CHG_FAULT, PM8607_IRQ_CHG_FAULT, "charging timeout", IORESOURCE_IRQ,}, |
| {PM8607_IRQ_GPADC1, PM8607_IRQ_GPADC1, "battery temperature", IORESOURCE_IRQ,}, |
| {PM8607_IRQ_VBAT, PM8607_IRQ_VBAT, "battery voltage", IORESOURCE_IRQ,}, |
| {PM8607_IRQ_VCHG, PM8607_IRQ_VCHG, "vchg voltage", IORESOURCE_IRQ,}, |
| }; |
| |
| static struct resource preg_resources[] __devinitdata = { |
| {PM8606_ID_PREG, PM8606_ID_PREG, "preg", IORESOURCE_IO, |
| &io_parent,}, |
| }; |
| |
| static struct resource rtc_resources[] __devinitdata = { |
| {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ, &io_parent,}, |
| }; |
| |
| static struct mfd_cell bk_devs[] = { |
| {"88pm860x-backlight", 0,}, |
| {"88pm860x-backlight", 1,}, |
| {"88pm860x-backlight", 2,}, |
| }; |
| |
| static struct mfd_cell led_devs[] = { |
| {"88pm860x-led", 0,}, |
| {"88pm860x-led", 1,}, |
| {"88pm860x-led", 2,}, |
| {"88pm860x-led", 3,}, |
| {"88pm860x-led", 4,}, |
| {"88pm860x-led", 5,}, |
| }; |
| |
| static struct mfd_cell regulator_devs[] = { |
| {"88pm860x-regulator", 0,}, |
| {"88pm860x-regulator", 1,}, |
| {"88pm860x-regulator", 2,}, |
| {"88pm860x-regulator", 3,}, |
| {"88pm860x-regulator", 4,}, |
| {"88pm860x-regulator", 5,}, |
| {"88pm860x-regulator", 6,}, |
| {"88pm860x-regulator", 7,}, |
| {"88pm860x-regulator", 8,}, |
| {"88pm860x-regulator", 9,}, |
| {"88pm860x-regulator", 10,}, |
| {"88pm860x-regulator", 11,}, |
| {"88pm860x-regulator", 12,}, |
| {"88pm860x-regulator", 13,}, |
| {"88pm860x-regulator", 14,}, |
| {"88pm860x-regulator", 15,}, |
| {"88pm860x-regulator", 16,}, |
| {"88pm860x-regulator", 17,}, |
| }; |
| |
| static struct mfd_cell touch_devs[] = { |
| {"88pm860x-touch", -1,}, |
| }; |
| |
| static struct mfd_cell onkey_devs[] = { |
| {"88pm860x-onkey", -1,}, |
| }; |
| |
| static struct mfd_cell codec_devs[] = { |
| {"88pm860x-codec", -1,}, |
| }; |
| |
| static struct regulator_consumer_supply preg_supply[] = { |
| REGULATOR_SUPPLY("preg", "charger-manager"), |
| }; |
| |
| static struct regulator_init_data preg_init_data = { |
| .num_consumer_supplies = ARRAY_SIZE(preg_supply), |
| .consumer_supplies = &preg_supply[0], |
| }; |
| |
| static struct mfd_cell power_devs[] = { |
| {"88pm860x-battery", -1,}, |
| {"88pm860x-charger", -1,}, |
| {"88pm860x-preg", -1,}, |
| }; |
| |
| static struct mfd_cell rtc_devs[] = { |
| {"88pm860x-rtc", -1,}, |
| }; |
| |
| |
| struct pm860x_irq_data { |
| int reg; |
| int mask_reg; |
| int enable; /* enable or not */ |
| int offs; /* bit offset in mask register */ |
| }; |
| |
| static struct pm860x_irq_data pm860x_irqs[] = { |
| [PM8607_IRQ_ONKEY] = { |
| .reg = PM8607_INT_STATUS1, |
| .mask_reg = PM8607_INT_MASK_1, |
| .offs = 1 << 0, |
| }, |
| [PM8607_IRQ_EXTON] = { |
| .reg = PM8607_INT_STATUS1, |
| .mask_reg = PM8607_INT_MASK_1, |
| .offs = 1 << 1, |
| }, |
| [PM8607_IRQ_CHG] = { |
| .reg = PM8607_INT_STATUS1, |
| .mask_reg = PM8607_INT_MASK_1, |
| .offs = 1 << 2, |
| }, |
| [PM8607_IRQ_BAT] = { |
| .reg = PM8607_INT_STATUS1, |
| .mask_reg = PM8607_INT_MASK_1, |
| .offs = 1 << 3, |
| }, |
| [PM8607_IRQ_RTC] = { |
| .reg = PM8607_INT_STATUS1, |
| .mask_reg = PM8607_INT_MASK_1, |
| .offs = 1 << 4, |
| }, |
| [PM8607_IRQ_CC] = { |
| .reg = PM8607_INT_STATUS1, |
| .mask_reg = PM8607_INT_MASK_1, |
| .offs = 1 << 5, |
| }, |
| [PM8607_IRQ_VBAT] = { |
| .reg = PM8607_INT_STATUS2, |
| .mask_reg = PM8607_INT_MASK_2, |
| .offs = 1 << 0, |
| }, |
| [PM8607_IRQ_VCHG] = { |
| .reg = PM8607_INT_STATUS2, |
| .mask_reg = PM8607_INT_MASK_2, |
| .offs = 1 << 1, |
| }, |
| [PM8607_IRQ_VSYS] = { |
| .reg = PM8607_INT_STATUS2, |
| .mask_reg = PM8607_INT_MASK_2, |
| .offs = 1 << 2, |
| }, |
| [PM8607_IRQ_TINT] = { |
| .reg = PM8607_INT_STATUS2, |
| .mask_reg = PM8607_INT_MASK_2, |
| .offs = 1 << 3, |
| }, |
| [PM8607_IRQ_GPADC0] = { |
| .reg = PM8607_INT_STATUS2, |
| .mask_reg = PM8607_INT_MASK_2, |
| .offs = 1 << 4, |
| }, |
| [PM8607_IRQ_GPADC1] = { |
| .reg = PM8607_INT_STATUS2, |
| .mask_reg = PM8607_INT_MASK_2, |
| .offs = 1 << 5, |
| }, |
| [PM8607_IRQ_GPADC2] = { |
| .reg = PM8607_INT_STATUS2, |
| .mask_reg = PM8607_INT_MASK_2, |
| .offs = 1 << 6, |
| }, |
| [PM8607_IRQ_GPADC3] = { |
| .reg = PM8607_INT_STATUS2, |
| .mask_reg = PM8607_INT_MASK_2, |
| .offs = 1 << 7, |
| }, |
| [PM8607_IRQ_AUDIO_SHORT] = { |
| .reg = PM8607_INT_STATUS3, |
| .mask_reg = PM8607_INT_MASK_3, |
| .offs = 1 << 0, |
| }, |
| [PM8607_IRQ_PEN] = { |
| .reg = PM8607_INT_STATUS3, |
| .mask_reg = PM8607_INT_MASK_3, |
| .offs = 1 << 1, |
| }, |
| [PM8607_IRQ_HEADSET] = { |
| .reg = PM8607_INT_STATUS3, |
| .mask_reg = PM8607_INT_MASK_3, |
| .offs = 1 << 2, |
| }, |
| [PM8607_IRQ_HOOK] = { |
| .reg = PM8607_INT_STATUS3, |
| .mask_reg = PM8607_INT_MASK_3, |
| .offs = 1 << 3, |
| }, |
| [PM8607_IRQ_MICIN] = { |
| .reg = PM8607_INT_STATUS3, |
| .mask_reg = PM8607_INT_MASK_3, |
| .offs = 1 << 4, |
| }, |
| [PM8607_IRQ_CHG_FAIL] = { |
| .reg = PM8607_INT_STATUS3, |
| .mask_reg = PM8607_INT_MASK_3, |
| .offs = 1 << 5, |
| }, |
| [PM8607_IRQ_CHG_DONE] = { |
| .reg = PM8607_INT_STATUS3, |
| .mask_reg = PM8607_INT_MASK_3, |
| .offs = 1 << 6, |
| }, |
| [PM8607_IRQ_CHG_FAULT] = { |
| .reg = PM8607_INT_STATUS3, |
| .mask_reg = PM8607_INT_MASK_3, |
| .offs = 1 << 7, |
| }, |
| }; |
| |
| static irqreturn_t pm860x_irq(int irq, void *data) |
| { |
| struct pm860x_chip *chip = data; |
| struct pm860x_irq_data *irq_data; |
| struct i2c_client *i2c; |
| int read_reg = -1, value = 0; |
| int i; |
| |
| i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; |
| for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { |
| irq_data = &pm860x_irqs[i]; |
| if (read_reg != irq_data->reg) { |
| read_reg = irq_data->reg; |
| value = pm860x_reg_read(i2c, irq_data->reg); |
| } |
| if (value & irq_data->enable) |
| handle_nested_irq(chip->irq_base + i); |
| } |
| return IRQ_HANDLED; |
| } |
| |
| static void pm860x_irq_lock(struct irq_data *data) |
| { |
| struct pm860x_chip *chip = irq_data_get_irq_chip_data(data); |
| |
| mutex_lock(&chip->irq_lock); |
| } |
| |
| static void pm860x_irq_sync_unlock(struct irq_data *data) |
| { |
| struct pm860x_chip *chip = irq_data_get_irq_chip_data(data); |
| struct pm860x_irq_data *irq_data; |
| struct i2c_client *i2c; |
| static unsigned char cached[3] = {0x0, 0x0, 0x0}; |
| unsigned char mask[3]; |
| int i; |
| |
| i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; |
| /* Load cached value. In initial, all IRQs are masked */ |
| for (i = 0; i < 3; i++) |
| mask[i] = cached[i]; |
| for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { |
| irq_data = &pm860x_irqs[i]; |
| switch (irq_data->mask_reg) { |
| case PM8607_INT_MASK_1: |
| mask[0] &= ~irq_data->offs; |
| mask[0] |= irq_data->enable; |
| break; |
| case PM8607_INT_MASK_2: |
| mask[1] &= ~irq_data->offs; |
| mask[1] |= irq_data->enable; |
| break; |
| case PM8607_INT_MASK_3: |
| mask[2] &= ~irq_data->offs; |
| mask[2] |= irq_data->enable; |
| break; |
| default: |
| dev_err(chip->dev, "wrong IRQ\n"); |
| break; |
| } |
| } |
| /* update mask into registers */ |
| for (i = 0; i < 3; i++) { |
| if (mask[i] != cached[i]) { |
| cached[i] = mask[i]; |
| pm860x_reg_write(i2c, PM8607_INT_MASK_1 + i, mask[i]); |
| } |
| } |
| |
| mutex_unlock(&chip->irq_lock); |
| } |
| |
| static void pm860x_irq_enable(struct irq_data *data) |
| { |
| struct pm860x_chip *chip = irq_data_get_irq_chip_data(data); |
| pm860x_irqs[data->irq - chip->irq_base].enable |
| = pm860x_irqs[data->irq - chip->irq_base].offs; |
| } |
| |
| static void pm860x_irq_disable(struct irq_data *data) |
| { |
| struct pm860x_chip *chip = irq_data_get_irq_chip_data(data); |
| pm860x_irqs[data->irq - chip->irq_base].enable = 0; |
| } |
| |
| static struct irq_chip pm860x_irq_chip = { |
| .name = "88pm860x", |
| .irq_bus_lock = pm860x_irq_lock, |
| .irq_bus_sync_unlock = pm860x_irq_sync_unlock, |
| .irq_enable = pm860x_irq_enable, |
| .irq_disable = pm860x_irq_disable, |
| }; |
| |
| static int __devinit device_gpadc_init(struct pm860x_chip *chip, |
| struct pm860x_platform_data *pdata) |
| { |
| struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \ |
| : chip->companion; |
| int data; |
| int ret; |
| |
| /* initialize GPADC without activating it */ |
| |
| if (!pdata || !pdata->touch) |
| return -EINVAL; |
| |
| /* set GPADC MISC1 register */ |
| data = 0; |
| data |= (pdata->touch->gpadc_prebias << 1) & PM8607_GPADC_PREBIAS_MASK; |
| data |= (pdata->touch->slot_cycle << 3) & PM8607_GPADC_SLOT_CYCLE_MASK; |
| data |= (pdata->touch->off_scale << 5) & PM8607_GPADC_OFF_SCALE_MASK; |
| data |= (pdata->touch->sw_cal << 7) & PM8607_GPADC_SW_CAL_MASK; |
| if (data) { |
| ret = pm860x_reg_write(i2c, PM8607_GPADC_MISC1, data); |
| if (ret < 0) |
| goto out; |
| } |
| /* set tsi prebias time */ |
| if (pdata->touch->tsi_prebias) { |
| data = pdata->touch->tsi_prebias; |
| ret = pm860x_reg_write(i2c, PM8607_TSI_PREBIAS, data); |
| if (ret < 0) |
| goto out; |
| } |
| /* set prebias & prechg time of pen detect */ |
| data = 0; |
| data |= pdata->touch->pen_prebias & PM8607_PD_PREBIAS_MASK; |
| data |= (pdata->touch->pen_prechg << 5) & PM8607_PD_PRECHG_MASK; |
| if (data) { |
| ret = pm860x_reg_write(i2c, PM8607_PD_PREBIAS, data); |
| if (ret < 0) |
| goto out; |
| } |
| |
| ret = pm860x_set_bits(i2c, PM8607_GPADC_MISC1, |
| PM8607_GPADC_EN, PM8607_GPADC_EN); |
| out: |
| return ret; |
| } |
| |
| static int __devinit device_irq_init(struct pm860x_chip *chip, |
| struct pm860x_platform_data *pdata) |
| { |
| struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? chip->client \ |
| : chip->companion; |
| unsigned char status_buf[INT_STATUS_NUM]; |
| unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT; |
| int i, data, mask, ret = -EINVAL; |
| int __irq; |
| |
| if (!pdata || !pdata->irq_base) { |
| dev_warn(chip->dev, "No interrupt support on IRQ base\n"); |
| return -EINVAL; |
| } |
| |
| mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR |
| | PM8607_B0_MISC1_INT_MASK; |
| data = 0; |
| chip->irq_mode = 0; |
| if (pdata && pdata->irq_mode) { |
| /* |
| * irq_mode defines the way of clearing interrupt. If it's 1, |
| * clear IRQ by write. Otherwise, clear it by read. |
| * This control bit is valid from 88PM8607 B0 steping. |
| */ |
| data |= PM8607_B0_MISC1_INT_CLEAR; |
| chip->irq_mode = 1; |
| } |
| ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data); |
| if (ret < 0) |
| goto out; |
| |
| /* mask all IRQs */ |
| memset(status_buf, 0, INT_STATUS_NUM); |
| ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1, |
| INT_STATUS_NUM, status_buf); |
| if (ret < 0) |
| goto out; |
| |
| if (chip->irq_mode) { |
| /* clear interrupt status by write */ |
| memset(status_buf, 0xFF, INT_STATUS_NUM); |
| ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1, |
| INT_STATUS_NUM, status_buf); |
| } else { |
| /* clear interrupt status by read */ |
| ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1, |
| INT_STATUS_NUM, status_buf); |
| } |
| if (ret < 0) |
| goto out; |
| |
| mutex_init(&chip->irq_lock); |
| chip->irq_base = pdata->irq_base; |
| chip->core_irq = i2c->irq; |
| if (!chip->core_irq) |
| goto out; |
| |
| /* register IRQ by genirq */ |
| for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { |
| __irq = i + chip->irq_base; |
| irq_set_chip_data(__irq, chip); |
| irq_set_chip_and_handler(__irq, &pm860x_irq_chip, |
| handle_edge_irq); |
| irq_set_nested_thread(__irq, 1); |
| #ifdef CONFIG_ARM |
| set_irq_flags(__irq, IRQF_VALID); |
| #else |
| irq_set_noprobe(__irq); |
| #endif |
| } |
| |
| ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq, flags, |
| "88pm860x", chip); |
| if (ret) { |
| dev_err(chip->dev, "Failed to request IRQ: %d\n", ret); |
| chip->core_irq = 0; |
| } |
| |
| return 0; |
| out: |
| chip->core_irq = 0; |
| return ret; |
| } |
| |
| static void device_irq_exit(struct pm860x_chip *chip) |
| { |
| if (chip->core_irq) |
| free_irq(chip->core_irq, chip); |
| } |
| |
| int pm8606_osc_enable(struct pm860x_chip *chip, unsigned short client) |
| { |
| int ret = -EIO; |
| struct i2c_client *i2c = (chip->id == CHIP_PM8606) ? |
| chip->client : chip->companion; |
| |
| dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client); |
| dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n", |
| __func__, chip->osc_vote, |
| chip->osc_status); |
| |
| mutex_lock(&chip->osc_lock); |
| /* Update voting status */ |
| chip->osc_vote |= client; |
| /* If reference group is off - turn on*/ |
| if (chip->osc_status != PM8606_REF_GP_OSC_ON) { |
| chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN; |
| /* Enable Reference group Vsys */ |
| if (pm860x_set_bits(i2c, PM8606_VSYS, |
| PM8606_VSYS_EN, PM8606_VSYS_EN)) |
| goto out; |
| |
| /*Enable Internal Oscillator */ |
| if (pm860x_set_bits(i2c, PM8606_MISC, |
| PM8606_MISC_OSC_EN, PM8606_MISC_OSC_EN)) |
| goto out; |
| /* Update status (only if writes succeed) */ |
| chip->osc_status = PM8606_REF_GP_OSC_ON; |
| } |
| mutex_unlock(&chip->osc_lock); |
| |
| dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n", |
| __func__, chip->osc_vote, |
| chip->osc_status, ret); |
| return 0; |
| out: |
| mutex_unlock(&chip->osc_lock); |
| return ret; |
| } |
| EXPORT_SYMBOL(pm8606_osc_enable); |
| |
| int pm8606_osc_disable(struct pm860x_chip *chip, unsigned short client) |
| { |
| int ret = -EIO; |
| struct i2c_client *i2c = (chip->id == CHIP_PM8606) ? |
| chip->client : chip->companion; |
| |
| dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client); |
| dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n", |
| __func__, chip->osc_vote, |
| chip->osc_status); |
| |
| mutex_lock(&chip->osc_lock); |
| /*Update voting status */ |
| chip->osc_vote &= ~(client); |
| /* If reference group is off and this is the last client to release |
| * - turn off */ |
| if ((chip->osc_status != PM8606_REF_GP_OSC_OFF) && |
| (chip->osc_vote == REF_GP_NO_CLIENTS)) { |
| chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN; |
| /* Disable Reference group Vsys */ |
| if (pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0)) |
| goto out; |
| /* Disable Internal Oscillator */ |
| if (pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0)) |
| goto out; |
| chip->osc_status = PM8606_REF_GP_OSC_OFF; |
| } |
| mutex_unlock(&chip->osc_lock); |
| |
| dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n", |
| __func__, chip->osc_vote, |
| chip->osc_status, ret); |
| return 0; |
| out: |
| mutex_unlock(&chip->osc_lock); |
| return ret; |
| } |
| EXPORT_SYMBOL(pm8606_osc_disable); |
| |
| static void __devinit device_osc_init(struct i2c_client *i2c) |
| { |
| struct pm860x_chip *chip = i2c_get_clientdata(i2c); |
| |
| mutex_init(&chip->osc_lock); |
| /* init portofino reference group voting and status */ |
| /* Disable Reference group Vsys */ |
| pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0); |
| /* Disable Internal Oscillator */ |
| pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0); |
| |
| chip->osc_vote = REF_GP_NO_CLIENTS; |
| chip->osc_status = PM8606_REF_GP_OSC_OFF; |
| } |
| |
| static void __devinit device_bk_init(struct pm860x_chip *chip, |
| struct pm860x_platform_data *pdata) |
| { |
| int ret; |
| int i, j, id; |
| |
| if ((pdata == NULL) || (pdata->backlight == NULL)) |
| return; |
| |
| if (pdata->num_backlights > ARRAY_SIZE(bk_devs)) |
| pdata->num_backlights = ARRAY_SIZE(bk_devs); |
| |
| for (i = 0; i < pdata->num_backlights; i++) { |
| bk_devs[i].platform_data = &pdata->backlight[i]; |
| bk_devs[i].pdata_size = sizeof(struct pm860x_backlight_pdata); |
| |
| for (j = 0; j < ARRAY_SIZE(bk_devs); j++) { |
| id = bk_resources[j].start; |
| if (pdata->backlight[i].flags != id) |
| continue; |
| |
| bk_devs[i].num_resources = 1; |
| bk_devs[i].resources = &bk_resources[j]; |
| ret = mfd_add_devices(chip->dev, 0, |
| &bk_devs[i], 1, |
| &bk_resources[j], 0); |
| if (ret < 0) { |
| dev_err(chip->dev, "Failed to add " |
| "backlight subdev\n"); |
| return; |
| } |
| } |
| } |
| } |
| |
| static void __devinit device_led_init(struct pm860x_chip *chip, |
| struct pm860x_platform_data *pdata) |
| { |
| int ret; |
| int i, j, id; |
| |
| if ((pdata == NULL) || (pdata->led == NULL)) |
| return; |
| |
| if (pdata->num_leds > ARRAY_SIZE(led_devs)) |
| pdata->num_leds = ARRAY_SIZE(led_devs); |
| |
| for (i = 0; i < pdata->num_leds; i++) { |
| led_devs[i].platform_data = &pdata->led[i]; |
| led_devs[i].pdata_size = sizeof(struct pm860x_led_pdata); |
| |
| for (j = 0; j < ARRAY_SIZE(led_devs); j++) { |
| id = led_resources[j].start; |
| if (pdata->led[i].flags != id) |
| continue; |
| |
| led_devs[i].num_resources = 1; |
| led_devs[i].resources = &led_resources[j], |
| ret = mfd_add_devices(chip->dev, 0, |
| &led_devs[i], 1, |
| &led_resources[j], 0); |
| if (ret < 0) { |
| dev_err(chip->dev, "Failed to add " |
| "led subdev\n"); |
| return; |
| } |
| } |
| } |
| } |
| |
| static void __devinit device_regulator_init(struct pm860x_chip *chip, |
| struct pm860x_platform_data *pdata) |
| { |
| struct regulator_init_data *initdata; |
| int ret; |
| int i, seq; |
| |
| if ((pdata == NULL) || (pdata->regulator == NULL)) |
| return; |
| |
| if (pdata->num_regulators > ARRAY_SIZE(regulator_devs)) |
| pdata->num_regulators = ARRAY_SIZE(regulator_devs); |
| |
| for (i = 0, seq = -1; i < pdata->num_regulators; i++) { |
| initdata = &pdata->regulator[i]; |
| seq = *(unsigned int *)initdata->driver_data; |
| if ((seq < 0) || (seq > PM8607_ID_RG_MAX)) { |
| dev_err(chip->dev, "Wrong ID(%d) on regulator(%s)\n", |
| seq, initdata->constraints.name); |
| goto out; |
| } |
| regulator_devs[i].platform_data = &pdata->regulator[i]; |
| regulator_devs[i].pdata_size = sizeof(struct regulator_init_data); |
| regulator_devs[i].num_resources = 1; |
| regulator_devs[i].resources = ®ulator_resources[seq]; |
| |
| ret = mfd_add_devices(chip->dev, 0, ®ulator_devs[i], 1, |
| ®ulator_resources[seq], 0); |
| if (ret < 0) { |
| dev_err(chip->dev, "Failed to add regulator subdev\n"); |
| goto out; |
| } |
| } |
| out: |
| return; |
| } |
| |
| static void __devinit device_rtc_init(struct pm860x_chip *chip, |
| struct pm860x_platform_data *pdata) |
| { |
| int ret; |
| |
| if ((pdata == NULL)) |
| return; |
| |
| rtc_devs[0].platform_data = pdata->rtc; |
| rtc_devs[0].pdata_size = sizeof(struct pm860x_rtc_pdata); |
| rtc_devs[0].num_resources = ARRAY_SIZE(rtc_resources); |
| rtc_devs[0].resources = &rtc_resources[0]; |
| ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0], |
| ARRAY_SIZE(rtc_devs), &rtc_resources[0], |
| chip->irq_base); |
| if (ret < 0) |
| dev_err(chip->dev, "Failed to add rtc subdev\n"); |
| } |
| |
| static void __devinit device_touch_init(struct pm860x_chip *chip, |
| struct pm860x_platform_data *pdata) |
| { |
| int ret; |
| |
| if (pdata == NULL) |
| return; |
| |
| touch_devs[0].platform_data = pdata->touch; |
| touch_devs[0].pdata_size = sizeof(struct pm860x_touch_pdata); |
| touch_devs[0].num_resources = ARRAY_SIZE(touch_resources); |
| touch_devs[0].resources = &touch_resources[0]; |
| ret = mfd_add_devices(chip->dev, 0, &touch_devs[0], |
| ARRAY_SIZE(touch_devs), &touch_resources[0], |
| chip->irq_base); |
| if (ret < 0) |
| dev_err(chip->dev, "Failed to add touch subdev\n"); |
| } |
| |
| static void __devinit device_power_init(struct pm860x_chip *chip, |
| struct pm860x_platform_data *pdata) |
| { |
| int ret; |
| |
| if (pdata == NULL) |
| return; |
| |
| power_devs[0].platform_data = pdata->power; |
| power_devs[0].pdata_size = sizeof(struct pm860x_power_pdata); |
| power_devs[0].num_resources = ARRAY_SIZE(battery_resources); |
| power_devs[0].resources = &battery_resources[0], |
| ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1, |
| &battery_resources[0], chip->irq_base); |
| if (ret < 0) |
| dev_err(chip->dev, "Failed to add battery subdev\n"); |
| |
| power_devs[1].platform_data = pdata->power; |
| power_devs[1].pdata_size = sizeof(struct pm860x_power_pdata); |
| power_devs[1].num_resources = ARRAY_SIZE(charger_resources); |
| power_devs[1].resources = &charger_resources[0], |
| ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1, |
| &charger_resources[0], chip->irq_base); |
| if (ret < 0) |
| dev_err(chip->dev, "Failed to add charger subdev\n"); |
| |
| power_devs[2].platform_data = &preg_init_data; |
| power_devs[2].pdata_size = sizeof(struct regulator_init_data); |
| power_devs[2].num_resources = ARRAY_SIZE(preg_resources); |
| power_devs[2].resources = &preg_resources[0], |
| ret = mfd_add_devices(chip->dev, 0, &power_devs[2], 1, |
| &preg_resources[0], chip->irq_base); |
| if (ret < 0) |
| dev_err(chip->dev, "Failed to add preg subdev\n"); |
| } |
| |
| static void __devinit device_onkey_init(struct pm860x_chip *chip, |
| struct pm860x_platform_data *pdata) |
| { |
| int ret; |
| |
| onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources); |
| onkey_devs[0].resources = &onkey_resources[0], |
| ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0], |
| ARRAY_SIZE(onkey_devs), &onkey_resources[0], |
| chip->irq_base); |
| if (ret < 0) |
| dev_err(chip->dev, "Failed to add onkey subdev\n"); |
| } |
| |
| static void __devinit device_codec_init(struct pm860x_chip *chip, |
| struct pm860x_platform_data *pdata) |
| { |
| int ret; |
| |
| codec_devs[0].num_resources = ARRAY_SIZE(codec_resources); |
| codec_devs[0].resources = &codec_resources[0], |
| ret = mfd_add_devices(chip->dev, 0, &codec_devs[0], |
| ARRAY_SIZE(codec_devs), &codec_resources[0], 0); |
| if (ret < 0) |
| dev_err(chip->dev, "Failed to add codec subdev\n"); |
| } |
| |
| static void __devinit device_8607_init(struct pm860x_chip *chip, |
| struct i2c_client *i2c, |
| struct pm860x_platform_data *pdata) |
| { |
| int data, ret; |
| |
| ret = pm860x_reg_read(i2c, PM8607_CHIP_ID); |
| if (ret < 0) { |
| dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret); |
| goto out; |
| } |
| switch (ret & PM8607_VERSION_MASK) { |
| case 0x40: |
| case 0x50: |
| dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n", |
| ret); |
| break; |
| default: |
| dev_err(chip->dev, "Failed to detect Marvell 88PM8607. " |
| "Chip ID: %02x\n", ret); |
| goto out; |
| } |
| |
| ret = pm860x_reg_read(i2c, PM8607_BUCK3); |
| if (ret < 0) { |
| dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret); |
| goto out; |
| } |
| if (ret & PM8607_BUCK3_DOUBLE) |
| chip->buck3_double = 1; |
| |
| ret = pm860x_reg_read(i2c, PM8607_B0_MISC1); |
| if (ret < 0) { |
| dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret); |
| goto out; |
| } |
| |
| if (pdata && (pdata->i2c_port == PI2C_PORT)) |
| data = PM8607_B0_MISC1_PI2C; |
| else |
| data = 0; |
| ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data); |
| if (ret < 0) { |
| dev_err(chip->dev, "Failed to access MISC1:%d\n", ret); |
| goto out; |
| } |
| |
| ret = device_gpadc_init(chip, pdata); |
| if (ret < 0) |
| goto out; |
| |
| ret = device_irq_init(chip, pdata); |
| if (ret < 0) |
| goto out; |
| |
| device_regulator_init(chip, pdata); |
| device_rtc_init(chip, pdata); |
| device_onkey_init(chip, pdata); |
| device_touch_init(chip, pdata); |
| device_power_init(chip, pdata); |
| device_codec_init(chip, pdata); |
| out: |
| return; |
| } |
| |
| static void __devinit device_8606_init(struct pm860x_chip *chip, |
| struct i2c_client *i2c, |
| struct pm860x_platform_data *pdata) |
| { |
| device_osc_init(i2c); |
| device_bk_init(chip, pdata); |
| device_led_init(chip, pdata); |
| } |
| |
| int __devinit pm860x_device_init(struct pm860x_chip *chip, |
| struct pm860x_platform_data *pdata) |
| { |
| chip->core_irq = 0; |
| |
| switch (chip->id) { |
| case CHIP_PM8606: |
| device_8606_init(chip, chip->client, pdata); |
| break; |
| case CHIP_PM8607: |
| device_8607_init(chip, chip->client, pdata); |
| break; |
| } |
| |
| if (chip->companion) { |
| switch (chip->id) { |
| case CHIP_PM8607: |
| device_8606_init(chip, chip->companion, pdata); |
| break; |
| case CHIP_PM8606: |
| device_8607_init(chip, chip->companion, pdata); |
| break; |
| } |
| } |
| |
| return 0; |
| } |
| |
| void __devexit pm860x_device_exit(struct pm860x_chip *chip) |
| { |
| device_irq_exit(chip); |
| mfd_remove_devices(chip->dev); |
| } |
| |
| MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x"); |
| MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>"); |
| MODULE_LICENSE("GPL"); |