#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
+#include <linux/irqdomain.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
#include <linux/mfd/core.h>
#include <linux/mfd/88pm860x.h>
#include <linux/regulator/machine.h>
+ #include <linux/power/charger-manager.h>
#define INT_STATUS_NUM 3
-static struct resource bk_resources[] __devinitdata = {
- {PM8606_BACKLIGHT1, PM8606_BACKLIGHT1, "backlight-0", IORESOURCE_IO,},
- {PM8606_BACKLIGHT2, PM8606_BACKLIGHT2, "backlight-1", IORESOURCE_IO,},
- {PM8606_BACKLIGHT3, PM8606_BACKLIGHT3, "backlight-2", IORESOURCE_IO,},
-};
-
-static struct resource led_resources[] __devinitdata = {
- {PM8606_LED1_RED, PM8606_LED1_RED, "led0-red", IORESOURCE_IO,},
- {PM8606_LED1_GREEN, PM8606_LED1_GREEN, "led0-green", IORESOURCE_IO,},
- {PM8606_LED1_BLUE, PM8606_LED1_BLUE, "led0-blue", IORESOURCE_IO,},
- {PM8606_LED2_RED, PM8606_LED2_RED, "led1-red", IORESOURCE_IO,},
- {PM8606_LED2_GREEN, PM8606_LED2_GREEN, "led1-green", IORESOURCE_IO,},
- {PM8606_LED2_BLUE, PM8606_LED2_BLUE, "led1-blue", IORESOURCE_IO,},
-};
-
-static struct resource regulator_resources[] __devinitdata = {
- {PM8607_ID_BUCK1, PM8607_ID_BUCK1, "buck-1", IORESOURCE_IO,},
- {PM8607_ID_BUCK2, PM8607_ID_BUCK2, "buck-2", IORESOURCE_IO,},
- {PM8607_ID_BUCK3, PM8607_ID_BUCK3, "buck-3", IORESOURCE_IO,},
- {PM8607_ID_LDO1, PM8607_ID_LDO1, "ldo-01", IORESOURCE_IO,},
- {PM8607_ID_LDO2, PM8607_ID_LDO2, "ldo-02", IORESOURCE_IO,},
- {PM8607_ID_LDO3, PM8607_ID_LDO3, "ldo-03", IORESOURCE_IO,},
- {PM8607_ID_LDO4, PM8607_ID_LDO4, "ldo-04", IORESOURCE_IO,},
- {PM8607_ID_LDO5, PM8607_ID_LDO5, "ldo-05", IORESOURCE_IO,},
- {PM8607_ID_LDO6, PM8607_ID_LDO6, "ldo-06", IORESOURCE_IO,},
- {PM8607_ID_LDO7, PM8607_ID_LDO7, "ldo-07", IORESOURCE_IO,},
- {PM8607_ID_LDO8, PM8607_ID_LDO8, "ldo-08", IORESOURCE_IO,},
- {PM8607_ID_LDO9, PM8607_ID_LDO9, "ldo-09", IORESOURCE_IO,},
- {PM8607_ID_LDO10, PM8607_ID_LDO10, "ldo-10", IORESOURCE_IO,},
- {PM8607_ID_LDO11, PM8607_ID_LDO11, "ldo-11", IORESOURCE_IO,},
- {PM8607_ID_LDO12, PM8607_ID_LDO12, "ldo-12", IORESOURCE_IO,},
- {PM8607_ID_LDO13, PM8607_ID_LDO13, "ldo-13", IORESOURCE_IO,},
- {PM8607_ID_LDO14, PM8607_ID_LDO14, "ldo-14", IORESOURCE_IO,},
- {PM8607_ID_LDO15, PM8607_ID_LDO15, "ldo-15", IORESOURCE_IO,},
+static struct resource bk0_resources[] __devinitdata = {
+ {2, 2, "duty cycle", IORESOURCE_REG, },
+ {3, 3, "always on", IORESOURCE_REG, },
+ {3, 3, "current", IORESOURCE_REG, },
+};
+static struct resource bk1_resources[] __devinitdata = {
+ {4, 4, "duty cycle", IORESOURCE_REG, },
+ {5, 5, "always on", IORESOURCE_REG, },
+ {5, 5, "current", IORESOURCE_REG, },
+};
+static struct resource bk2_resources[] __devinitdata = {
+ {6, 6, "duty cycle", IORESOURCE_REG, },
+ {7, 7, "always on", IORESOURCE_REG, },
+ {5, 5, "current", IORESOURCE_REG, },
+};
+
+static struct resource led0_resources[] __devinitdata = {
+ /* RGB1 Red LED */
+ {0xd, 0xd, "control", IORESOURCE_REG, },
+ {0xc, 0xc, "blink", IORESOURCE_REG, },
+};
+static struct resource led1_resources[] __devinitdata = {
+ /* RGB1 Green LED */
+ {0xe, 0xe, "control", IORESOURCE_REG, },
+ {0xc, 0xc, "blink", IORESOURCE_REG, },
+};
+static struct resource led2_resources[] __devinitdata = {
+ /* RGB1 Blue LED */
+ {0xf, 0xf, "control", IORESOURCE_REG, },
+ {0xc, 0xc, "blink", IORESOURCE_REG, },
+};
+static struct resource led3_resources[] __devinitdata = {
+ /* RGB2 Red LED */
+ {0x9, 0x9, "control", IORESOURCE_REG, },
+ {0x8, 0x8, "blink", IORESOURCE_REG, },
+};
+static struct resource led4_resources[] __devinitdata = {
+ /* RGB2 Green LED */
+ {0xa, 0xa, "control", IORESOURCE_REG, },
+ {0x8, 0x8, "blink", IORESOURCE_REG, },
+};
+static struct resource led5_resources[] __devinitdata = {
+ /* RGB2 Blue LED */
+ {0xb, 0xb, "control", IORESOURCE_REG, },
+ {0x8, 0x8, "blink", IORESOURCE_REG, },
+};
+
+static struct resource buck1_resources[] __devinitdata = {
+ {0x24, 0x24, "buck set", IORESOURCE_REG, },
+};
+static struct resource buck2_resources[] __devinitdata = {
+ {0x25, 0x25, "buck set", IORESOURCE_REG, },
+};
+static struct resource buck3_resources[] __devinitdata = {
+ {0x26, 0x26, "buck set", IORESOURCE_REG, },
+};
+static struct resource ldo1_resources[] __devinitdata = {
+ {0x10, 0x10, "ldo set", IORESOURCE_REG, },
+};
+static struct resource ldo2_resources[] __devinitdata = {
+ {0x11, 0x11, "ldo set", IORESOURCE_REG, },
+};
+static struct resource ldo3_resources[] __devinitdata = {
+ {0x12, 0x12, "ldo set", IORESOURCE_REG, },
+};
+static struct resource ldo4_resources[] __devinitdata = {
+ {0x13, 0x13, "ldo set", IORESOURCE_REG, },
+};
+static struct resource ldo5_resources[] __devinitdata = {
+ {0x14, 0x14, "ldo set", IORESOURCE_REG, },
+};
+static struct resource ldo6_resources[] __devinitdata = {
+ {0x15, 0x15, "ldo set", IORESOURCE_REG, },
+};
+static struct resource ldo7_resources[] __devinitdata = {
+ {0x16, 0x16, "ldo set", IORESOURCE_REG, },
+};
+static struct resource ldo8_resources[] __devinitdata = {
+ {0x17, 0x17, "ldo set", IORESOURCE_REG, },
+};
+static struct resource ldo9_resources[] __devinitdata = {
+ {0x18, 0x18, "ldo set", IORESOURCE_REG, },
+};
+static struct resource ldo10_resources[] __devinitdata = {
+ {0x19, 0x19, "ldo set", IORESOURCE_REG, },
+};
+static struct resource ldo12_resources[] __devinitdata = {
+ {0x1a, 0x1a, "ldo set", IORESOURCE_REG, },
+};
+static struct resource ldo_vibrator_resources[] __devinitdata = {
+ {0x28, 0x28, "ldo set", IORESOURCE_REG, },
+};
+static struct resource ldo14_resources[] __devinitdata = {
+ {0x1b, 0x1b, "ldo set", IORESOURCE_REG, },
};
static struct resource touch_resources[] __devinitdata = {
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_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 preg_resources[] __devinitdata = {
- {PM8606_ID_PREG, PM8606_ID_PREG, "preg", IORESOURCE_IO,},
-};
-
static struct resource rtc_resources[] __devinitdata = {
{PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,},
};
-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 bk_devs[] __devinitdata = {
+ {
+ .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[] __devinitdata = {
+ {
+ .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[] __devinitdata = {
+ {
+ .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[] = {
.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[] = {
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;
+ pm860x_irqs[data->hwirq].enable = pm860x_irqs[data->hwirq].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;
+ pm860x_irqs[data->hwirq].enable = 0;
}
static struct irq_chip pm860x_irq_chip = {
.irq_disable = pm860x_irq_disable,
};
-static int __devinit device_gpadc_init(struct pm860x_chip *chip,
- struct pm860x_platform_data *pdata)
+static int pm860x_irq_domain_map(struct irq_domain *d, unsigned int virq,
+ irq_hw_number_t hw)
{
- 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;
+ 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);
+#ifdef CONFIG_ARM
+ set_irq_flags(virq, IRQF_VALID);
+#else
+ irq_set_noprobe(virq);
+#endif
+ return 0;
}
+static struct irq_domain_ops pm860x_irq_domain_ops = {
+ .map = pm860x_irq_domain_map,
+ .xlate = irq_domain_xlate_onetwocell,
+};
+
static int __devinit device_irq_init(struct pm860x_chip *chip,
struct pm860x_platform_data *pdata)
{
: 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;
- }
+ 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;
goto out;
mutex_init(&chip->irq_lock);
- chip->irq_base = pdata->irq_base;
+
+ 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;
- /* 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,
+ 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);
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, NULL);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to add "
- "backlight subdev\n");
- return;
- }
+ 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 __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, NULL);
- if (ret < 0) {
- dev_err(chip->dev, "Failed to add "
- "led subdev\n");
- return;
- }
+ 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 __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))
+ 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;
-
- 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, NULL);
- 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,
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, NULL);
+ 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 __devinit device_onkey_init(struct pm860x_chip *chip,
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_led_init(chip, pdata);
}
-int __devinit pm860x_device_init(struct pm860x_chip *chip,
- struct pm860x_platform_data *pdata)
+static int __devinit pm860x_device_init(struct pm860x_chip *chip,
+ struct pm860x_platform_data *pdata)
{
chip->core_irq = 0;
return 0;
}
-void __devexit pm860x_device_exit(struct pm860x_chip *chip)
+static void __devexit 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 struct regmap_config pm860x_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int __devinit pm860x_dt_init(struct device_node *np,
+ struct device *dev,
+ struct pm860x_platform_data *pdata)
+{
+ int ret;
+
+ if (of_get_property(np, "marvell,88pm860x-irq-read-clr", NULL))
+ pdata->irq_mode = 1;
+ 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 __devinit pm860x_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct pm860x_platform_data *pdata = client->dev.platform_data;
+ 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)
+ goto err;
+ } else if (!pdata) {
+ pr_info("No platform data in %s!\n", __func__);
+ return -EINVAL;
+ }
+
+ chip = kzalloc(sizeof(struct pm860x_chip), GFP_KERNEL);
+ if (chip == NULL) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ chip->id = verify_addr(client);
+ chip->regmap = 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);
+ kfree(chip);
+ return ret;
+ }
+ chip->client = client;
+ i2c_set_clientdata(client, chip);
+ chip->dev = &client->dev;
+ dev_set_drvdata(chip->dev, chip);
+
+ /*
+ * 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(chip->client->adapter,
+ chip->companion_addr);
+ 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);
+ return ret;
+ }
+ i2c_set_clientdata(chip->companion, chip);
+ }
+
+ pm860x_device_init(chip, pdata);
+ return 0;
+err:
+ if (node)
+ devm_kfree(&client->dev, pdata);
+ return ret;
+}
+
+static int __devexit 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);
+ }
+ regmap_exit(chip->regmap);
+ kfree(chip);
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int pm860x_suspend(struct device *dev)
+{
+ struct i2c_client *client = container_of(dev, struct 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 = container_of(dev, struct 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;
+}
+#endif
+
+static 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",
+ .owner = THIS_MODULE,
+ .pm = &pm860x_pm_ops,
+ .of_match_table = of_match_ptr(pm860x_dt_ids),
+ },
+ .probe = pm860x_probe,
+ .remove = __devexit_p(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 <haojian.zhuang@marvell.com>");
MODULE_LICENSE("GPL");
#include <linux/platform_device.h>
#include <linux/power/charger-manager.h>
#include <linux/regulator/consumer.h>
+ #include <linux/sysfs.h>
static const char * const default_event_names[] = {
[CM_EVENT_UNKNOWN] = "Unknown",
return charging;
}
+ /**
+ * is_full_charged - Returns true if the battery is fully charged.
+ * @cm: the Charger Manager representing the battery.
+ */
+ static bool is_full_charged(struct charger_manager *cm)
+ {
+ struct charger_desc *desc = cm->desc;
+ union power_supply_propval val;
+ int ret = 0;
+ int uV;
+
+ /* If there is no battery, it cannot be charged */
+ if (!is_batt_present(cm)) {
+ val.intval = 0;
+ goto out;
+ }
+
+ if (cm->fuel_gauge && desc->fullbatt_full_capacity > 0) {
+ /* Not full if capacity of fuel gauge isn't full */
+ ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
+ POWER_SUPPLY_PROP_CHARGE_FULL, &val);
+ if (!ret && val.intval > desc->fullbatt_full_capacity) {
+ val.intval = 1;
+ goto out;
+ }
+ }
+
+ /* Full, if it's over the fullbatt voltage */
+ if (desc->fullbatt_uV > 0) {
+ ret = get_batt_uV(cm, &uV);
+ if (!ret && uV >= desc->fullbatt_uV) {
+ val.intval = 1;
+ goto out;
+ }
+ }
+
+ /* Full, if the capacity is more than fullbatt_soc */
+ if (cm->fuel_gauge && desc->fullbatt_soc > 0) {
+ ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
+ POWER_SUPPLY_PROP_CAPACITY, &val);
+ if (!ret && val.intval >= desc->fullbatt_soc) {
+ val.intval = 1;
+ goto out;
+ }
+ }
+
+ val.intval = 0;
+
+ out:
+ return val.intval ? true : false;
+ }
+
/**
* is_polling_required - Return true if need to continue polling for this CM.
* @cm: the Charger Manager representing the battery.
if (enable) {
if (cm->emergency_stop)
return -EAGAIN;
- for (i = 0 ; i < desc->num_charger_regulators ; i++)
- regulator_enable(desc->charger_regulators[i].consumer);
+
+ /*
+ * Save start time of charging to limit
+ * maximum possible charging time.
+ */
+ cm->charging_start_time = ktime_to_ms(ktime_get());
+ cm->charging_end_time = 0;
+
+ for (i = 0 ; i < desc->num_charger_regulators ; i++) {
+ if (desc->charger_regulators[i].externally_control)
+ continue;
+
+ err = regulator_enable(desc->charger_regulators[i].consumer);
+ if (err < 0) {
+ dev_warn(cm->dev,
+ "Cannot enable %s regulator\n",
+ desc->charger_regulators[i].regulator_name);
+ }
+ }
} else {
+ /*
+ * Save end time of charging to maintain fully charged state
+ * of battery after full-batt.
+ */
+ cm->charging_start_time = 0;
+ cm->charging_end_time = ktime_to_ms(ktime_get());
+
+ for (i = 0 ; i < desc->num_charger_regulators ; i++) {
+ if (desc->charger_regulators[i].externally_control)
+ continue;
+
+ err = regulator_disable(desc->charger_regulators[i].consumer);
+ if (err < 0) {
+ dev_warn(cm->dev,
+ "Cannot disable %s regulator\n",
+ desc->charger_regulators[i].regulator_name);
+ }
+ }
+
/*
* Abnormal battery state - Stop charging forcibly,
* even if charger was enabled at the other places
return;
}
- diff = cm->fullbatt_vchk_uV;
+ diff = desc->fullbatt_uV;
diff -= batt_uV;
- dev_dbg(cm->dev, "VBATT dropped %duV after full-batt.\n", diff);
+ dev_info(cm->dev, "VBATT dropped %duV after full-batt.\n", diff);
if (diff > desc->fullbatt_vchkdrop_uV) {
try_charger_restart(cm);
- uevent_notify(cm, "Recharge");
+ uevent_notify(cm, "Recharging");
+ }
+ }
+
+ /**
+ * check_charging_duration - Monitor charging/discharging duration
+ * @cm: the Charger Manager representing the battery.
+ *
+ * If whole charging duration exceed 'charging_max_duration_ms',
+ * cm stop charging to prevent overcharge/overheat. If discharging
+ * duration exceed 'discharging _max_duration_ms', charger cable is
+ * attached, after full-batt, cm start charging to maintain fully
+ * charged state for battery.
+ */
+ static int check_charging_duration(struct charger_manager *cm)
+ {
+ struct charger_desc *desc = cm->desc;
+ u64 curr = ktime_to_ms(ktime_get());
+ u64 duration;
+ int ret = false;
+
+ if (!desc->charging_max_duration_ms &&
+ !desc->discharging_max_duration_ms)
+ return ret;
+
+ if (cm->charger_enabled) {
+ duration = curr - cm->charging_start_time;
+
+ if (duration > desc->charging_max_duration_ms) {
+ dev_info(cm->dev, "Charging duration exceed %lldms",
+ desc->charging_max_duration_ms);
+ uevent_notify(cm, "Discharging");
+ try_charger_enable(cm, false);
+ ret = true;
+ }
+ } else if (is_ext_pwr_online(cm) && !cm->charger_enabled) {
+ duration = curr - cm->charging_end_time;
+
+ if (duration > desc->charging_max_duration_ms &&
+ is_ext_pwr_online(cm)) {
+ dev_info(cm->dev, "DisCharging duration exceed %lldms",
+ desc->discharging_max_duration_ms);
+ uevent_notify(cm, "Recharing");
+ try_charger_enable(cm, true);
+ ret = true;
+ }
}
+
+ return ret;
}
/**
dev_dbg(cm->dev, "monitoring (%2.2d.%3.3dC)\n",
cm->last_temp_mC / 1000, cm->last_temp_mC % 1000);
- /* It has been stopped or charging already */
- if (!!temp == !!cm->emergency_stop)
+ /* It has been stopped already */
+ if (temp && cm->emergency_stop)
return false;
+ /*
+ * Check temperature whether overheat or cold.
+ * If temperature is out of range normal state, stop charging.
+ */
if (temp) {
cm->emergency_stop = temp;
if (!try_charger_enable(cm, false)) {
else
uevent_notify(cm, "COLD");
}
+
+ /*
+ * Check whole charging duration and discharing duration
+ * after full-batt.
+ */
+ } else if (!cm->emergency_stop && check_charging_duration(cm)) {
+ dev_dbg(cm->dev,
+ "Charging/Discharging duration is out of range");
+ /*
+ * Check dropped voltage of battery. If battery voltage is more
+ * dropped than fullbatt_vchkdrop_uV after fully charged state,
+ * charger-manager have to recharge battery.
+ */
+ } else if (!cm->emergency_stop && is_ext_pwr_online(cm) &&
+ !cm->charger_enabled) {
+ fullbatt_vchk(&cm->fullbatt_vchk_work.work);
+
+ /*
+ * Check whether fully charged state to protect overcharge
+ * if charger-manager is charging for battery.
+ */
+ } else if (!cm->emergency_stop && is_full_charged(cm) &&
+ cm->charger_enabled) {
+ dev_info(cm->dev, "EVENT_HANDLE: Battery Fully Charged.\n");
+ uevent_notify(cm, default_event_names[CM_EVENT_BATT_FULL]);
+
+ try_charger_enable(cm, false);
+
+ fullbatt_vchk(&cm->fullbatt_vchk_work.work);
} else {
cm->emergency_stop = 0;
- if (!try_charger_enable(cm, true))
- uevent_notify(cm, "CHARGING");
+ if (is_ext_pwr_online(cm)) {
+ if (!try_charger_enable(cm, true))
+ uevent_notify(cm, "CHARGING");
+ }
}
return true;
if (!delayed_work_pending(&cm_monitor_work) ||
(delayed_work_pending(&cm_monitor_work) &&
time_after(next_polling, _next_polling))) {
- cancel_delayed_work_sync(&cm_monitor_work);
next_polling = jiffies + polling_jiffy;
- queue_delayed_work(cm_wq, &cm_monitor_work, polling_jiffy);
+ mod_delayed_work(cm_wq, &cm_monitor_work, polling_jiffy);
}
out:
if (cm_suspended)
device_set_wakeup_capable(cm->dev, true);
- if (delayed_work_pending(&cm->fullbatt_vchk_work))
- cancel_delayed_work(&cm->fullbatt_vchk_work);
- queue_delayed_work(cm_wq, &cm->fullbatt_vchk_work,
- msecs_to_jiffies(desc->fullbatt_vchkdrop_ms));
+ mod_delayed_work(cm_wq, &cm->fullbatt_vchk_work,
+ msecs_to_jiffies(desc->fullbatt_vchkdrop_ms));
cm->fullbatt_vchk_jiffies_at = jiffies + msecs_to_jiffies(
desc->fullbatt_vchkdrop_ms);
val->intval = 0;
break;
case POWER_SUPPLY_PROP_CHARGE_FULL:
- if (cm->fuel_gauge) {
- if (cm->fuel_gauge->get_property(cm->fuel_gauge,
- POWER_SUPPLY_PROP_CHARGE_FULL, val) == 0)
- break;
- }
-
- if (is_ext_pwr_online(cm)) {
- /* Not full if it's charging. */
- if (is_charging(cm)) {
- val->intval = 0;
- break;
- }
- /*
- * Full if it's powered but not charging andi
- * not forced stop by emergency
- */
- if (!cm->emergency_stop) {
- val->intval = 1;
- break;
- }
- }
-
- /* Full if it's over the fullbatt voltage */
- ret = get_batt_uV(cm, &uV);
- if (!ret && desc->fullbatt_uV > 0 && uV >= desc->fullbatt_uV &&
- !is_charging(cm)) {
+ if (is_full_charged(cm))
val->intval = 1;
- break;
- }
-
- /* Full if the cap is 100 */
- if (cm->fuel_gauge) {
- ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
- POWER_SUPPLY_PROP_CAPACITY, val);
- if (!ret && val->intval >= 100 && !is_charging(cm)) {
- val->intval = 1;
- break;
- }
- }
-
- val->intval = 0;
+ else
+ val->intval = 0;
ret = 0;
break;
case POWER_SUPPLY_PROP_CHARGE_NOW:
struct charger_cable *cable =
container_of(self, struct charger_cable, nb);
+ /*
+ * The newly state of charger cable.
+ * If cable is attached, cable->attached is true.
+ */
cable->attached = event;
+
+ /*
+ * Setup monitoring to check battery state
+ * when charger cable is attached.
+ */
+ if (cable->attached && is_polling_required(cable->cm)) {
+ if (work_pending(&setup_polling))
+ cancel_work_sync(&setup_polling);
+ schedule_work(&setup_polling);
+ }
+
+ /*
+ * Setup work for controlling charger(regulator)
+ * according to charger cable.
+ */
schedule_work(&cable->wq);
return NOTIFY_DONE;
return ret;
}
+ /* help function of sysfs node to control charger(regulator) */
+ static ssize_t charger_name_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+ {
+ struct charger_regulator *charger
+ = container_of(attr, struct charger_regulator, attr_name);
+
+ return sprintf(buf, "%s\n", charger->regulator_name);
+ }
+
+ static ssize_t charger_state_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+ {
+ struct charger_regulator *charger
+ = container_of(attr, struct charger_regulator, attr_state);
+ int state = 0;
+
+ if (!charger->externally_control)
+ state = regulator_is_enabled(charger->consumer);
+
+ return sprintf(buf, "%s\n", state ? "enabled" : "disabled");
+ }
+
+ static ssize_t charger_externally_control_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+ {
+ struct charger_regulator *charger = container_of(attr,
+ struct charger_regulator, attr_externally_control);
+
+ return sprintf(buf, "%d\n", charger->externally_control);
+ }
+
+ static ssize_t charger_externally_control_store(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+ {
+ struct charger_regulator *charger
+ = container_of(attr, struct charger_regulator,
+ attr_externally_control);
+ struct charger_manager *cm = charger->cm;
+ struct charger_desc *desc = cm->desc;
+ int i;
+ int ret;
+ int externally_control;
+ int chargers_externally_control = 1;
+
+ ret = sscanf(buf, "%d", &externally_control);
+ if (ret == 0) {
+ ret = -EINVAL;
+ return ret;
+ }
+
+ if (!externally_control) {
+ charger->externally_control = 0;
+ return count;
+ }
+
+ for (i = 0; i < desc->num_charger_regulators; i++) {
+ if (&desc->charger_regulators[i] != charger &&
+ !desc->charger_regulators[i].externally_control) {
+ /*
+ * At least, one charger is controlled by
+ * charger-manager
+ */
+ chargers_externally_control = 0;
+ break;
+ }
+ }
+
+ if (!chargers_externally_control) {
+ if (cm->charger_enabled) {
+ try_charger_enable(charger->cm, false);
+ charger->externally_control = externally_control;
+ try_charger_enable(charger->cm, true);
+ } else {
+ charger->externally_control = externally_control;
+ }
+ } else {
+ dev_warn(cm->dev,
+ "'%s' regulator should be controlled "
+ "in charger-manager because charger-manager "
+ "must need at least one charger for charging\n",
+ charger->regulator_name);
+ }
+
+ return count;
+ }
+
static int charger_manager_probe(struct platform_device *pdev)
{
struct charger_desc *desc = dev_get_platdata(&pdev->dev);
struct charger_manager *cm;
int ret = 0, i = 0;
int j = 0;
+ int chargers_externally_control = 1;
union power_supply_propval val;
if (g_desc && !rtc_dev && g_desc->rtc_name) {
desc->fullbatt_vchkdrop_ms = 0;
desc->fullbatt_vchkdrop_uV = 0;
}
+ if (desc->fullbatt_soc == 0) {
+ dev_info(&pdev->dev, "Ignoring full-battery soc(state of"
+ " charge) threshold as it is not"
+ " supplied.");
+ }
+ if (desc->fullbatt_full_capacity == 0) {
+ dev_info(&pdev->dev, "Ignoring full-battery full capacity"
+ " threshold as it is not supplied.");
+ }
if (!desc->charger_regulators || desc->num_charger_regulators < 1) {
ret = -EINVAL;
goto err_chg_stat;
}
+ if (!desc->charging_max_duration_ms ||
+ !desc->discharging_max_duration_ms) {
+ dev_info(&pdev->dev, "Cannot limit charging duration "
+ "checking mechanism to prevent overcharge/overheat "
+ "and control discharging duration");
+ desc->charging_max_duration_ms = 0;
+ desc->discharging_max_duration_ms = 0;
+ }
+
platform_set_drvdata(pdev, cm);
memcpy(&cm->charger_psy, &psy_default, sizeof(psy_default));
for (i = 0 ; i < desc->num_charger_regulators ; i++) {
struct charger_regulator *charger
= &desc->charger_regulators[i];
+ char buf[11];
+ char *str;
charger->consumer = regulator_get(&pdev->dev,
charger->regulator_name);
ret = -EINVAL;
goto err_chg_get;
}
+ charger->cm = cm;
for (j = 0 ; j < charger->num_cables ; j++) {
struct charger_cable *cable = &charger->cables[j];
cable->charger = charger;
cable->cm = cm;
}
+
+ /* Create sysfs entry to control charger(regulator) */
+ snprintf(buf, 10, "charger.%d", i);
+ str = kzalloc(sizeof(char) * (strlen(buf) + 1), GFP_KERNEL);
+ if (!str) {
+ for (i--; i >= 0; i--) {
+ charger = &desc->charger_regulators[i];
+ kfree(charger->attr_g.name);
+ }
+ ret = -ENOMEM;
+
+ goto err_extcon;
+ }
+ strcpy(str, buf);
+
+ charger->attrs[0] = &charger->attr_name.attr;
+ charger->attrs[1] = &charger->attr_state.attr;
+ charger->attrs[2] = &charger->attr_externally_control.attr;
+ charger->attrs[3] = NULL;
+ charger->attr_g.name = str;
+ charger->attr_g.attrs = charger->attrs;
+
+ sysfs_attr_init(&charger->attr_name.attr);
+ charger->attr_name.attr.name = "name";
+ charger->attr_name.attr.mode = 0444;
+ charger->attr_name.show = charger_name_show;
+
+ sysfs_attr_init(&charger->attr_state.attr);
+ charger->attr_state.attr.name = "state";
+ charger->attr_state.attr.mode = 0444;
+ charger->attr_state.show = charger_state_show;
+
+ sysfs_attr_init(&charger->attr_externally_control.attr);
+ charger->attr_externally_control.attr.name
+ = "externally_control";
+ charger->attr_externally_control.attr.mode = 0644;
+ charger->attr_externally_control.show
+ = charger_externally_control_show;
+ charger->attr_externally_control.store
+ = charger_externally_control_store;
+
+ if (!desc->charger_regulators[i].externally_control ||
+ !chargers_externally_control) {
+ chargers_externally_control = 0;
+ }
+ dev_info(&pdev->dev, "'%s' regulator's externally_control"
+ "is %d\n", charger->regulator_name,
+ charger->externally_control);
+
+ ret = sysfs_create_group(&cm->charger_psy.dev->kobj,
+ &charger->attr_g);
+ if (ret < 0) {
+ dev_info(&pdev->dev, "Cannot create sysfs entry"
+ "of %s regulator\n",
+ charger->regulator_name);
+ }
+ }
+
+ if (chargers_externally_control) {
+ dev_err(&pdev->dev, "Cannot register regulator because "
+ "charger-manager must need at least "
+ "one charger for charging battery\n");
+
+ ret = -EINVAL;
+ goto err_chg_enable;
}
ret = try_charger_enable(cm, true);
return 0;
err_chg_enable:
+ for (i = 0; i < desc->num_charger_regulators; i++) {
+ struct charger_regulator *charger;
+
+ charger = &desc->charger_regulators[i];
+ sysfs_remove_group(&cm->charger_psy.dev->kobj,
+ &charger->attr_g);
+ kfree(charger->attr_g.name);
+ }
err_extcon:
for (i = 0 ; i < desc->num_charger_regulators ; i++) {
struct charger_regulator *charger
projects / karo-tx-linux.git / commitdiff