static int adp5520_bl_set(struct backlight_device *bl, int brightness) { struct adp5520_bl *data = bl_get_data(bl); struct device *master = data->master; int ret = 0; if (data->pdata->en_ambl_sens) { if ((brightness > 0) && (brightness < ADP5020_MAX_BRIGHTNESS)) { ret |= adp5520_clr_bits(master, ADP5520_BL_CONTROL, ADP5520_BL_AUTO_ADJ); ret |= adp5520_write(master, ADP5520_DAYLIGHT_MAX, brightness); } else { ret |= adp5520_write(master, ADP5520_DAYLIGHT_MAX, data->cached_daylight_max); ret |= adp5520_set_bits(master, ADP5520_BL_CONTROL, ADP5520_BL_AUTO_ADJ); } } else { ret |= adp5520_write(master, ADP5520_DAYLIGHT_MAX, brightness); } if (data->current_brightness && brightness == 0) ret |= adp5520_set_bits(master, ADP5520_MODE_STATUS, ADP5520_DIM_EN); else if (data->current_brightness == 0 && brightness) ret |= adp5520_clr_bits(master, ADP5520_MODE_STATUS, ADP5520_DIM_EN); if (!ret) data->current_brightness = brightness; return ret; }
static int adp5520_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct adp5520_chip *chip = dev_get_drvdata(&client->dev); adp5520_write(chip->dev, ADP5520_MODE_STATUS, chip->mode); return 0; }
static int adp5520_suspend(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct adp5520_chip *chip = dev_get_drvdata(&client->dev); adp5520_read(chip->dev, ADP5520_MODE_STATUS, &chip->mode); /* All other bits are W1C */ chip->mode &= ADP5520_BL_EN | ADP5520_DIM_EN | ADP5520_nSTNBY; adp5520_write(chip->dev, ADP5520_MODE_STATUS, 0); return 0; }
static int __devexit adp5520_remove(struct i2c_client *client) { struct adp5520_chip *chip = dev_get_drvdata(&client->dev); if (chip->irq) free_irq(chip->irq, chip); adp5520_remove_subdevs(chip); adp5520_write(chip->dev, ADP5520_MODE_STATUS, 0); kfree(chip); return 0; }
static int adp5520_bl_set(struct backlight_device *bl, int brightness) { struct adp5520_bl *data = bl_get_data(bl); struct device *master = data->master; int ret = 0; if (data->pdata->en_ambl_sens) { if ((brightness > 0) && (brightness < ADP5020_MAX_BRIGHTNESS)) { /* Disable Ambient Light auto adjust */ ret |= adp5520_clr_bits(master, BL_CONTROL, BL_AUTO_ADJ); ret |= adp5520_write(master, DAYLIGHT_MAX, brightness); } else { /* * MAX_BRIGHTNESS -> Enable Ambient Light auto adjust * restore daylight l3 sysfs brightness */ ret |= adp5520_write(master, DAYLIGHT_MAX, data->cached_daylight_max); ret |= adp5520_set_bits(master, BL_CONTROL, BL_AUTO_ADJ); } } else { ret |= adp5520_write(master, DAYLIGHT_MAX, brightness); } if (data->current_brightness && brightness == 0) ret |= adp5520_set_bits(master, MODE_STATUS, DIM_EN); else if (data->current_brightness == 0 && brightness) ret |= adp5520_clr_bits(master, MODE_STATUS, DIM_EN); if (!ret) data->current_brightness = brightness; return ret; }
static ssize_t adp5520_store(struct device *dev, const char *buf, size_t count, int reg) { struct adp5520_bl *data = dev_get_drvdata(dev); unsigned long val; int ret; ret = strict_strtoul(buf, 10, &val); if (ret) return ret; mutex_lock(&data->lock); adp5520_write(data->master, reg, val); mutex_unlock(&data->lock); return count; }
static int adp5520_bl_setup(struct backlight_device *bl) { struct adp5520_bl *data = bl_get_data(bl); struct device *master = data->master; struct adp5520_backlight_platform_data *pdata = data->pdata; int ret = 0; ret |= adp5520_write(master, ADP5520_DAYLIGHT_MAX, pdata->l1_daylight_max); ret |= adp5520_write(master, ADP5520_DAYLIGHT_DIM, pdata->l1_daylight_dim); if (pdata->en_ambl_sens) { data->cached_daylight_max = pdata->l1_daylight_max; ret |= adp5520_write(master, ADP5520_OFFICE_MAX, pdata->l2_office_max); ret |= adp5520_write(master, ADP5520_OFFICE_DIM, pdata->l2_office_dim); ret |= adp5520_write(master, ADP5520_DARK_MAX, pdata->l3_dark_max); ret |= adp5520_write(master, ADP5520_DARK_DIM, pdata->l3_dark_dim); ret |= adp5520_write(master, ADP5520_L2_TRIP, pdata->l2_trip); ret |= adp5520_write(master, ADP5520_L2_HYS, pdata->l2_hyst); ret |= adp5520_write(master, ADP5520_L3_TRIP, pdata->l3_trip); ret |= adp5520_write(master, ADP5520_L3_HYS, pdata->l3_hyst); ret |= adp5520_write(master, ADP5520_ALS_CMPR_CFG, ALS_CMPR_CFG_VAL(pdata->abml_filt, ADP5520_L3_EN)); } ret |= adp5520_write(master, ADP5520_BL_CONTROL, BL_CTRL_VAL(pdata->fade_led_law, pdata->en_ambl_sens)); ret |= adp5520_write(master, ADP5520_BL_FADE, FADE_VAL(pdata->fade_in, pdata->fade_out)); ret |= adp5520_set_bits(master, ADP5520_MODE_STATUS, ADP5520_BL_EN | ADP5520_DIM_EN); return ret; }
static int __devinit adp5520_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct adp5520_platform_data *pdata = client->dev.platform_data; struct platform_device *pdev; struct adp5520_chip *chip; int ret; if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { dev_err(&client->dev, "SMBUS Word Data not Supported\n"); return -EIO; } if (pdata == NULL) { dev_err(&client->dev, "missing platform data\n"); return -ENODEV; } chip = kzalloc(sizeof(*chip), GFP_KERNEL); if (!chip) return -ENOMEM; i2c_set_clientdata(client, chip); chip->client = client; chip->dev = &client->dev; chip->irq = client->irq; chip->id = id->driver_data; mutex_init(&chip->lock); if (chip->irq) { BLOCKING_INIT_NOTIFIER_HEAD(&chip->notifier_list); ret = request_threaded_irq(chip->irq, NULL, adp5520_irq_thread, IRQF_TRIGGER_LOW | IRQF_ONESHOT, "adp5520", chip); if (ret) { dev_err(&client->dev, "failed to request irq %d\n", chip->irq); goto out_free_chip; } } ret = adp5520_write(chip->dev, ADP5520_MODE_STATUS, ADP5520_nSTNBY); if (ret) { dev_err(&client->dev, "failed to write\n"); goto out_free_irq; } if (pdata->keys) { pdev = platform_device_register_data(chip->dev, "adp5520-keys", chip->id, pdata->keys, sizeof(*pdata->keys)); if (IS_ERR(pdev)) { ret = PTR_ERR(pdev); goto out_remove_subdevs; } } if (pdata->gpio) { pdev = platform_device_register_data(chip->dev, "adp5520-gpio", chip->id, pdata->gpio, sizeof(*pdata->gpio)); if (IS_ERR(pdev)) { ret = PTR_ERR(pdev); goto out_remove_subdevs; } } if (pdata->leds) { pdev = platform_device_register_data(chip->dev, "adp5520-led", chip->id, pdata->leds, sizeof(*pdata->leds)); if (IS_ERR(pdev)) { ret = PTR_ERR(pdev); goto out_remove_subdevs; } } if (pdata->backlight) { pdev = platform_device_register_data(chip->dev, "adp5520-backlight", chip->id, pdata->backlight, sizeof(*pdata->backlight)); if (IS_ERR(pdev)) { ret = PTR_ERR(pdev); goto out_remove_subdevs; } } return 0; out_remove_subdevs: adp5520_remove_subdevs(chip); out_free_irq: if (chip->irq) free_irq(chip->irq, chip); out_free_chip: kfree(chip); return ret; }