// SPDX-License-Identifier: GPL-2.0-only /* * Base driver for Marvell 88PM8607 * * Copyright (C) 2009 Marvell International Ltd. * * Author: Haojian Zhuang */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define INT_STATUS_NUM 3 static const struct resource bk0_resources[] = { {2, 2, "duty cycle", IORESOURCE_REG, }, {3, 3, "always on", IORESOURCE_REG, }, {3, 3, "current", IORESOURCE_REG, }, }; static const struct resource bk1_resources[] = { {4, 4, "duty cycle", IORESOURCE_REG, }, {5, 5, "always on", IORESOURCE_REG, }, {5, 5, "current", IORESOURCE_REG, }, }; static const struct resource bk2_resources[] = { {6, 6, "duty cycle", IORESOURCE_REG, }, {7, 7, "always on", IORESOURCE_REG, }, {5, 5, "current", IORESOURCE_REG, }, }; static const struct resource led0_resources[] = { /* RGB1 Red LED */ {0xd, 0xd, "control", IORESOURCE_REG, }, {0xc, 0xc, "blink", IORESOURCE_REG, }, }; static const struct resource led1_resources[] = { /* RGB1 Green LED */ {0xe, 0xe, "control", IORESOURCE_REG, }, {0xc, 0xc, "blink", IORESOURCE_REG, }, }; static const struct resource led2_resources[] = { /* RGB1 Blue LED */ {0xf, 0xf, "control", IORESOURCE_REG, }, {0xc, 0xc, "blink", IORESOURCE_REG, }, }; static const struct resource led3_resources[] = { /* RGB2 Red LED */ {0x9, 0x9, "control", IORESOURCE_REG, }, {0x8, 0x8, "blink", IORESOURCE_REG, }, }; static const struct resource led4_resources[] = { /* RGB2 Green LED */ {0xa, 0xa, "control", IORESOURCE_REG, }, {0x8, 0x8, "blink", IORESOURCE_REG, }, }; static const struct resource led5_resources[] = { /* RGB2 Blue LED */ {0xb, 0xb, "control", IORESOURCE_REG, }, {0x8, 0x8, "blink", IORESOURCE_REG, }, }; static const struct resource buck1_resources[] = { {0x24, 0x24, "buck set", IORESOURCE_REG, }, }; static const struct resource buck2_resources[] = { {0x25, 0x25, "buck set", IORESOURCE_REG, }, }; static const struct resource buck3_resources[] = { {0x26, 0x26, "buck set", IORESOURCE_REG, }, }; static const struct resource ldo1_resources[] = { {0x10, 0x10, "ldo set", IORESOURCE_REG, }, }; static const struct resource ldo2_resources[] = { {0x11, 0x11, "ldo set", IORESOURCE_REG, }, }; static const struct resource ldo3_resources[] = { {0x12, 0x12, "ldo set", IORESOURCE_REG, }, }; static const struct resource ldo4_resources[] = { {0x13, 0x13, "ldo set", IORESOURCE_REG, }, }; static const struct resource ldo5_resources[] = { {0x14, 0x14, "ldo set", IORESOURCE_REG, }, }; static const struct resource ldo6_resources[] = { {0x15, 0x15, "ldo set", IORESOURCE_REG, }, }; static const struct resource ldo7_resources[] = { {0x16, 0x16, "ldo set", IORESOURCE_REG, }, }; static const struct resource ldo8_resources[] = { {0x17, 0x17, "ldo set", IORESOURCE_REG, }, }; static const struct resource ldo9_resources[] = { {0x18, 0x18, "ldo set", IORESOURCE_REG, }, }; static const struct resource ldo10_resources[] = { {0x19, 0x19, "ldo set", IORESOURCE_REG, }, }; static const struct resource ldo12_resources[] = { {0x1a, 0x1a, "ldo set", IORESOURCE_REG, }, }; static const struct resource ldo_vibrator_resources[] = { {0x28, 0x28, "ldo set", IORESOURCE_REG, }, }; static const struct resource ldo14_resources[] = { {0x1b, 0x1b, "ldo set", IORESOURCE_REG, }, }; static struct resource touch_resources[] = { {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,}, }; static struct resource onkey_resources[] = { {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,}, }; static struct resource codec_resources[] = { /* 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[] = { {PM8607_IRQ_CC, PM8607_IRQ_CC, "columb counter", IORESOURCE_IRQ,}, {PM8607_IRQ_BAT, PM8607_IRQ_BAT, "battery", IORESOURCE_IRQ,}, }; static struct resource charger_resources[] = { {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_FAIL, PM8607_IRQ_CHG_FAIL, "charging timeout", IORESOURCE_IRQ,}, {PM8607_IRQ_CHG_FAULT, PM8607_IRQ_CHG_FAULT, "charging fault", 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 rtc_resources[] = { {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,}, }; static struct mfd_cell bk_devs[] = { { .name = "88pm860x-backlight", .id = 0, .num_resources = ARRAY_SIZE(bk0_resources), .resources = bk0_resources, }, { .name = "88pm860x-backlight", .id = 1, .num_resources = ARRAY_SIZE(bk1_resources), .resources = bk1_resources, }, { .name = "88pm860x-backlight", .id = 2, .num_resources = ARRAY_SIZE(bk2_resources), .resources = bk2_resources, }, }; static struct mfd_cell led_devs[] = { { .name = "88pm860x-led", .id = 0, .num_resources = ARRAY_SIZE(led0_resources), .resources = led0_resources, }, { .name = "88pm860x-led", .id = 1, .num_resources = ARRAY_SIZE(led1_resources), .resources = led1_resources, }, { .name = "88pm860x-led", .id = 2, .num_resources = ARRAY_SIZE(led2_resources), .resources = led2_resources, }, { .name = "88pm860x-led", .id = 3, .num_resources = ARRAY_SIZE(led3_resources), .resources = led3_resources, }, { .name = "88pm860x-led", .id = 4, .num_resources = ARRAY_SIZE(led4_resources), .resources = led4_resources, }, { .name = "88pm860x-led", .id = 5, .num_resources = ARRAY_SIZE(led5_resources), .resources = led5_resources, }, }; static struct mfd_cell reg_devs[] = { { .name = "88pm860x-regulator", .id = 0, .num_resources = ARRAY_SIZE(buck1_resources), .resources = buck1_resources, }, { .name = "88pm860x-regulator", .id = 1, .num_resources = ARRAY_SIZE(buck2_resources), .resources = buck2_resources, }, { .name = "88pm860x-regulator", .id = 2, .num_resources = ARRAY_SIZE(buck3_resources), .resources = buck3_resources, }, { .name = "88pm860x-regulator", .id = 3, .num_resources = ARRAY_SIZE(ldo1_resources), .resources = ldo1_resources, }, { .name = "88pm860x-regulator", .id = 4, .num_resources = ARRAY_SIZE(ldo2_resources), .resources = ldo2_resources, }, { .name = "88pm860x-regulator", .id = 5, .num_resources = ARRAY_SIZE(ldo3_resources), .resources = ldo3_resources, }, { .name = "88pm860x-regulator", .id = 6, .num_resources = ARRAY_SIZE(ldo4_resources), .resources = ldo4_resources, }, { .name = "88pm860x-regulator", .id = 7, .num_resources = ARRAY_SIZE(ldo5_resources), .resources = ldo5_resources, }, { .name = "88pm860x-regulator", .id = 8, .num_resources = ARRAY_SIZE(ldo6_resources), .resources = ldo6_resources, }, { .name = "88pm860x-regulator", .id = 9, .num_resources = ARRAY_SIZE(ldo7_resources), .resources = ldo7_resources, }, { .name = "88pm860x-regulator", .id = 10, .num_resources = ARRAY_SIZE(ldo8_resources), .resources = ldo8_resources, }, { .name = "88pm860x-regulator", .id = 11, .num_resources = ARRAY_SIZE(ldo9_resources), .resources = ldo9_resources, }, { .name = "88pm860x-regulator", .id = 12, .num_resources = ARRAY_SIZE(ldo10_resources), .resources = ldo10_resources, }, { .name = "88pm860x-regulator", .id = 13, .num_resources = ARRAY_SIZE(ldo12_resources), .resources = ldo12_resources, }, { .name = "88pm860x-regulator", .id = 14, .num_resources = ARRAY_SIZE(ldo_vibrator_resources), .resources = ldo_vibrator_resources, }, { .name = "88pm860x-regulator", .id = 15, .num_resources = ARRAY_SIZE(ldo14_resources), .resources = ldo14_resources, }, }; 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 charger_regulator chg_desc_regulator_data[] = { { .regulator_name = "preg", }, }; static struct mfd_cell power_devs[] = { {"88pm860x-battery", -1,}, {"88pm860x-charger", -1,}, {"88pm860x-preg", -1,}, {"charger-manager", -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) { pm860x_irqs[data->hwirq].enable = pm860x_irqs[data->hwirq].offs; } static void pm860x_irq_disable(struct irq_data *data) { pm860x_irqs[data->hwirq].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 pm860x_irq_domain_map(struct irq_domain *d, unsigned int virq, irq_hw_number_t hw) { irq_set_chip_data(virq, d->host_data); irq_set_chip_and_handler(virq, &pm860x_irq_chip, handle_edge_irq); irq_set_nested_thread(virq, 1); irq_set_noprobe(virq); return 0; } static const struct irq_domain_ops pm860x_irq_domain_ops = { .map = pm860x_irq_domain_map, .xlate = irq_domain_xlate_onetwocell, }; static int 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 data, mask, ret = -EINVAL; int nr_irqs, irq_base = -1; struct device_node *node = i2c->dev.of_node; 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); if (pdata && pdata->irq_base) irq_base = pdata->irq_base; nr_irqs = ARRAY_SIZE(pm860x_irqs); chip->irq_base = irq_alloc_descs(irq_base, 0, nr_irqs, 0); if (chip->irq_base < 0) { dev_err(&i2c->dev, "Failed to allocate interrupts, ret:%d\n", chip->irq_base); ret = -EBUSY; goto out; } irq_domain_add_legacy(node, nr_irqs, chip->irq_base, 0, &pm860x_irq_domain_ops, chip); chip->core_irq = i2c->irq; if (!chip->core_irq) goto out; ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq, flags | IRQF_ONESHOT, "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 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 device_bk_init(struct pm860x_chip *chip, struct pm860x_platform_data *pdata) { int ret, i; if (pdata && pdata->backlight) { 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); } } ret = mfd_add_devices(chip->dev, 0, bk_devs, ARRAY_SIZE(bk_devs), NULL, 0, NULL); if (ret < 0) dev_err(chip->dev, "Failed to add backlight subdev\n"); } static void device_led_init(struct pm860x_chip *chip, struct pm860x_platform_data *pdata) { int ret, i; if (pdata && pdata->led) { 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); } } ret = mfd_add_devices(chip->dev, 0, led_devs, ARRAY_SIZE(led_devs), NULL, 0, NULL); if (ret < 0) { dev_err(chip->dev, "Failed to add led subdev\n"); return; } } static void device_regulator_init(struct pm860x_chip *chip, struct pm860x_platform_data *pdata) { int ret; if (pdata == NULL) return; if (pdata->buck1) { reg_devs[0].platform_data = pdata->buck1; reg_devs[0].pdata_size = sizeof(struct regulator_init_data); } if (pdata->buck2) { reg_devs[1].platform_data = pdata->buck2; reg_devs[1].pdata_size = sizeof(struct regulator_init_data); } if (pdata->buck3) { reg_devs[2].platform_data = pdata->buck3; reg_devs[2].pdata_size = sizeof(struct regulator_init_data); } if (pdata->ldo1) { reg_devs[3].platform_data = pdata->ldo1; reg_devs[3].pdata_size = sizeof(struct regulator_init_data); } if (pdata->ldo2) { reg_devs[4].platform_data = pdata->ldo2; reg_devs[4].pdata_size = sizeof(struct regulator_init_data); } if (pdata->ldo3) { reg_devs[5].platform_data = pdata->ldo3; reg_devs[5].pdata_size = sizeof(struct regulator_init_data); } if (pdata->ldo4) { reg_devs[6].platform_data = pdata->ldo4; reg_devs[6].pdata_size = sizeof(struct regulator_init_data); } if (pdata->ldo5) { reg_devs[7].platform_data = pdata->ldo5; reg_devs[7].pdata_size = sizeof(struct regulator_init_data); } if (pdata->ldo6) { reg_devs[8].platform_data = pdata->ldo6; reg_devs[8].pdata_size = sizeof(struct regulator_init_data); } if (pdata->ldo7) { reg_devs[9].platform_data = pdata->ldo7; reg_devs[9].pdata_size = sizeof(struct regulator_init_data); } if (pdata->ldo8) { reg_devs[10].platform_data = pdata->ldo8; reg_devs[10].pdata_size = sizeof(struct regulator_init_data); } if (pdata->ldo9) { reg_devs[11].platform_data = pdata->ldo9; reg_devs[11].pdata_size = sizeof(struct regulator_init_data); } if (pdata->ldo10) { reg_devs[12].platform_data = pdata->ldo10; reg_devs[12].pdata_size = sizeof(struct regulator_init_data); } if (pdata->ldo12) { reg_devs[13].platform_data = pdata->ldo12; reg_devs[13].pdata_size = sizeof(struct regulator_init_data); } if (pdata->ldo_vibrator) { reg_devs[14].platform_data = pdata->ldo_vibrator; reg_devs[14].pdata_size = sizeof(struct regulator_init_data); } if (pdata->ldo14) { reg_devs[15].platform_data = pdata->ldo14; reg_devs[15].pdata_size = sizeof(struct regulator_init_data); } ret = mfd_add_devices(chip->dev, 0, reg_devs, ARRAY_SIZE(reg_devs), NULL, 0, NULL); if (ret < 0) { dev_err(chip->dev, "Failed to add regulator subdev\n"); return; } } static void device_rtc_init(struct pm860x_chip *chip, struct pm860x_platform_data *pdata) { int ret; if (!pdata) 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, NULL); if (ret < 0) dev_err(chip->dev, "Failed to add rtc subdev\n"); } static void 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, NULL); if (ret < 0) dev_err(chip->dev, "Failed to add touch subdev\n"); } static void 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, NULL); 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, NULL); 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); ret = mfd_add_devices(chip->dev, 0, &power_devs[2], 1, NULL, chip->irq_base, NULL); if (ret < 0) dev_err(chip->dev, "Failed to add preg subdev\n"); if (pdata->chg_desc) { pdata->chg_desc->charger_regulators = &chg_desc_regulator_data[0]; pdata->chg_desc->num_charger_regulators = ARRAY_SIZE(chg_desc_regulator_data), power_devs[3].platform_data = pdata->chg_desc; power_devs[3].pdata_size = sizeof(*pdata->chg_desc); ret = mfd_add_devices(chip->dev, 0, &power_devs[3], 1, NULL, chip->irq_base, NULL); if (ret < 0) dev_err(chip->dev, "Failed to add chg-manager subdev\n"); } } static void 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, NULL); if (ret < 0) dev_err(chip->dev, "Failed to add onkey subdev\n"); } static void 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, NULL); if (ret < 0) dev_err(chip->dev, "Failed to add codec subdev\n"); } static void 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_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 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); } static int 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; } static void pm860x_device_exit(struct pm860x_chip *chip) { device_irq_exit(chip); mfd_remove_devices(chip->dev); } static int verify_addr(struct i2c_client *i2c) { unsigned short addr_8607[] = {0x30, 0x34}; unsigned short addr_8606[] = {0x10, 0x11}; int size, i; if (i2c == NULL) return 0; size = ARRAY_SIZE(addr_8606); for (i = 0; i < size; i++) { if (i2c->addr == *(addr_8606 + i)) return CHIP_PM8606; } size = ARRAY_SIZE(addr_8607); for (i = 0; i < size; i++) { if (i2c->addr == *(addr_8607 + i)) return CHIP_PM8607; } return 0; } static const struct regmap_config pm860x_regmap_config = { .reg_bits = 8, .val_bits = 8, }; static int pm860x_dt_init(struct device_node *np, struct device *dev, struct pm860x_platform_data *pdata) { int ret; pdata->irq_mode = of_property_read_bool(np, "marvell,88pm860x-irq-read-clr"); ret = of_property_read_u32(np, "marvell,88pm860x-slave-addr", &pdata->companion_addr); if (ret) { dev_err(dev, "Not found \"marvell,88pm860x-slave-addr\" property\n"); pdata->companion_addr = 0; } return 0; } static int pm860x_probe(struct i2c_client *client) { struct pm860x_platform_data *pdata = dev_get_platdata(&client->dev); struct device_node *node = client->dev.of_node; struct pm860x_chip *chip; int ret; if (node && !pdata) { /* parse DT to get platform data */ pdata = devm_kzalloc(&client->dev, sizeof(struct pm860x_platform_data), GFP_KERNEL); if (!pdata) return -ENOMEM; ret = pm860x_dt_init(node, &client->dev, pdata); if (ret) return ret; } else if (!pdata) { pr_info("No platform data in %s!\n", __func__); return -EINVAL; } chip = devm_kzalloc(&client->dev, sizeof(struct pm860x_chip), GFP_KERNEL); if (chip == NULL) return -ENOMEM; chip->id = verify_addr(client); chip->regmap = devm_regmap_init_i2c(client, &pm860x_regmap_config); if (IS_ERR(chip->regmap)) { ret = PTR_ERR(chip->regmap); dev_err(&client->dev, "Failed to allocate register map: %d\n", ret); return ret; } chip->client = client; i2c_set_clientdata(client, chip); chip->dev = &client->dev; /* * Both client and companion client shares same platform driver. * Driver distinguishes them by pdata->companion_addr. * pdata->companion_addr is only assigned if companion chip exists. * At the same time, the companion_addr shouldn't equal to client * address. */ if (pdata->companion_addr && (pdata->companion_addr != client->addr)) { chip->companion_addr = pdata->companion_addr; chip->companion = i2c_new_dummy_device(chip->client->adapter, chip->companion_addr); if (IS_ERR(chip->companion)) { dev_err(&client->dev, "Failed to allocate I2C companion device\n"); return PTR_ERR(chip->companion); } chip->regmap_companion = regmap_init_i2c(chip->companion, &pm860x_regmap_config); if (IS_ERR(chip->regmap_companion)) { ret = PTR_ERR(chip->regmap_companion); dev_err(&chip->companion->dev, "Failed to allocate register map: %d\n", ret); i2c_unregister_device(chip->companion); return ret; } i2c_set_clientdata(chip->companion, chip); } pm860x_device_init(chip, pdata); return 0; } static void pm860x_remove(struct i2c_client *client) { struct pm860x_chip *chip = i2c_get_clientdata(client); pm860x_device_exit(chip); if (chip->companion) { regmap_exit(chip->regmap_companion); i2c_unregister_device(chip->companion); } } static int pm860x_suspend(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct pm860x_chip *chip = i2c_get_clientdata(client); if (device_may_wakeup(dev) && chip->wakeup_flag) enable_irq_wake(chip->core_irq); return 0; } static int pm860x_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct pm860x_chip *chip = i2c_get_clientdata(client); if (device_may_wakeup(dev) && chip->wakeup_flag) disable_irq_wake(chip->core_irq); return 0; } static DEFINE_SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume); static const struct i2c_device_id pm860x_id_table[] = { { "88PM860x", 0 }, {} }; MODULE_DEVICE_TABLE(i2c, pm860x_id_table); static const struct of_device_id pm860x_dt_ids[] = { { .compatible = "marvell,88pm860x", }, {}, }; MODULE_DEVICE_TABLE(of, pm860x_dt_ids); static struct i2c_driver pm860x_driver = { .driver = { .name = "88PM860x", .pm = pm_sleep_ptr(&pm860x_pm_ops), .of_match_table = pm860x_dt_ids, }, .probe = pm860x_probe, .remove = pm860x_remove, .id_table = pm860x_id_table, }; static int __init pm860x_i2c_init(void) { int ret; ret = i2c_add_driver(&pm860x_driver); if (ret != 0) pr_err("Failed to register 88PM860x I2C driver: %d\n", ret); return ret; } subsys_initcall(pm860x_i2c_init); static void __exit pm860x_i2c_exit(void) { i2c_del_driver(&pm860x_driver); } module_exit(pm860x_i2c_exit); MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x"); MODULE_AUTHOR("Haojian Zhuang ");