Lines Matching +full:i2c +full:- +full:slave +full:- +full:addr
1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright 2011-2012 Texas Instruments Inc.
14 #include <linux/i2c.h>
327 struct palmas_pmic_driver_data *pmic_ddata = palmas->pmic_ddata; in palmas_ext_control_req_config()
349 bit_pos = pmic_ddata->sleep_req_info[id].bit_pos; in palmas_ext_control_req_config()
350 reg_add += pmic_ddata->sleep_req_info[id].reg_offset; in palmas_ext_control_req_config()
358 dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n", in palmas_ext_control_req_config()
367 dev_err(palmas->dev, "POWER_CTRL register update failed %d\n", in palmas_ext_control_req_config()
375 static int palmas_set_pdata_irq_flag(struct i2c_client *i2c, in palmas_set_pdata_irq_flag() argument
378 struct irq_data *irq_data = irq_get_irq_data(i2c->irq); in palmas_set_pdata_irq_flag()
380 dev_err(&i2c->dev, "Invalid IRQ: %d\n", i2c->irq); in palmas_set_pdata_irq_flag()
381 return -EINVAL; in palmas_set_pdata_irq_flag()
384 pdata->irq_flags = irqd_get_trigger_type(irq_data); in palmas_set_pdata_irq_flag()
385 dev_info(&i2c->dev, "Irq flag is 0x%08x\n", pdata->irq_flags); in palmas_set_pdata_irq_flag()
389 static void palmas_dt_to_pdata(struct i2c_client *i2c, in palmas_dt_to_pdata() argument
392 struct device_node *node = i2c->dev.of_node; in palmas_dt_to_pdata()
396 ret = of_property_read_u32(node, "ti,mux-pad1", &prop); in palmas_dt_to_pdata()
398 pdata->mux_from_pdata = 1; in palmas_dt_to_pdata()
399 pdata->pad1 = prop; in palmas_dt_to_pdata()
402 ret = of_property_read_u32(node, "ti,mux-pad2", &prop); in palmas_dt_to_pdata()
404 pdata->mux_from_pdata = 1; in palmas_dt_to_pdata()
405 pdata->pad2 = prop; in palmas_dt_to_pdata()
409 ret = of_property_read_u32(node, "ti,power-ctrl", &prop); in palmas_dt_to_pdata()
411 pdata->power_ctrl = prop; in palmas_dt_to_pdata()
413 pdata->power_ctrl = PALMAS_POWER_CTRL_NSLEEP_MASK | in palmas_dt_to_pdata()
416 if (i2c->irq) in palmas_dt_to_pdata()
417 palmas_set_pdata_irq_flag(i2c, pdata); in palmas_dt_to_pdata()
419 pdata->pm_off = of_property_read_bool(node, in palmas_dt_to_pdata()
420 "ti,system-power-controller"); in palmas_dt_to_pdata()
426 unsigned int addr; in palmas_power_off() local
427 int ret, slave; in palmas_power_off() local
429 struct device_node *np = palmas_dev->dev->of_node; in palmas_power_off()
431 if (of_property_read_bool(np, "ti,palmas-override-powerhold")) { in palmas_power_off()
432 addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE, in palmas_power_off()
434 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE); in palmas_power_off()
443 ret = regmap_update_bits(palmas_dev->regmap[slave], addr, in palmas_power_off()
446 dev_err(palmas_dev->dev, in palmas_power_off()
451 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PMU_CONTROL_BASE); in palmas_power_off()
452 addr = PALMAS_BASE_TO_REG(PALMAS_PMU_CONTROL_BASE, PALMAS_DEV_CTRL); in palmas_power_off()
455 palmas_dev->regmap[slave], in palmas_power_off()
456 addr, in palmas_power_off()
505 static int palmas_i2c_probe(struct i2c_client *i2c, in palmas_i2c_probe() argument
511 struct device_node *node = i2c->dev.of_node; in palmas_i2c_probe()
513 unsigned int reg, addr; in palmas_i2c_probe() local
514 int slave; in palmas_i2c_probe() local
517 pdata = dev_get_platdata(&i2c->dev); in palmas_i2c_probe()
520 pdata = devm_kzalloc(&i2c->dev, sizeof(*pdata), GFP_KERNEL); in palmas_i2c_probe()
523 return -ENOMEM; in palmas_i2c_probe()
525 palmas_dt_to_pdata(i2c, pdata); in palmas_i2c_probe()
529 return -EINVAL; in palmas_i2c_probe()
531 palmas = devm_kzalloc(&i2c->dev, sizeof(struct palmas), GFP_KERNEL); in palmas_i2c_probe()
533 return -ENOMEM; in palmas_i2c_probe()
535 i2c_set_clientdata(i2c, palmas); in palmas_i2c_probe()
536 palmas->dev = &i2c->dev; in palmas_i2c_probe()
537 palmas->irq = i2c->irq; in palmas_i2c_probe()
539 match = of_match_device(of_palmas_match_tbl, &i2c->dev); in palmas_i2c_probe()
542 return -ENODATA; in palmas_i2c_probe()
544 driver_data = (struct palmas_driver_data *)match->data; in palmas_i2c_probe()
545 palmas->features = *driver_data->features; in palmas_i2c_probe()
549 palmas->i2c_clients[i] = i2c; in palmas_i2c_probe()
551 palmas->i2c_clients[i] = in palmas_i2c_probe()
552 i2c_new_dummy_device(i2c->adapter, in palmas_i2c_probe()
553 i2c->addr + i); in palmas_i2c_probe()
554 if (IS_ERR(palmas->i2c_clients[i])) { in palmas_i2c_probe()
555 dev_err(palmas->dev, in palmas_i2c_probe()
557 ret = PTR_ERR(palmas->i2c_clients[i]); in palmas_i2c_probe()
560 palmas->i2c_clients[i]->dev.of_node = of_node_get(node); in palmas_i2c_probe()
562 palmas->regmap[i] = devm_regmap_init_i2c(palmas->i2c_clients[i], in palmas_i2c_probe()
564 if (IS_ERR(palmas->regmap[i])) { in palmas_i2c_probe()
565 ret = PTR_ERR(palmas->regmap[i]); in palmas_i2c_probe()
566 dev_err(palmas->dev, in palmas_i2c_probe()
573 if (!palmas->irq) { in palmas_i2c_probe()
574 dev_warn(palmas->dev, "IRQ missing: skipping irq request\n"); in palmas_i2c_probe()
579 if (pdata->irq_flags & IRQ_TYPE_LEVEL_HIGH) in palmas_i2c_probe()
587 dev_err(palmas->dev, "POLARITY_CTRL update failed: %d\n", ret); in palmas_i2c_probe()
592 slave = PALMAS_BASE_TO_SLAVE(PALMAS_INTERRUPT_BASE); in palmas_i2c_probe()
593 addr = PALMAS_BASE_TO_REG(PALMAS_INTERRUPT_BASE, PALMAS_INT_CTRL); in palmas_i2c_probe()
596 regmap_write(palmas->regmap[slave], addr, reg); in palmas_i2c_probe()
598 ret = regmap_add_irq_chip(palmas->regmap[slave], palmas->irq, in palmas_i2c_probe()
599 IRQF_ONESHOT | pdata->irq_flags, 0, in palmas_i2c_probe()
600 driver_data->irq_chip, &palmas->irq_data); in palmas_i2c_probe()
605 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE); in palmas_i2c_probe()
606 addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE, in palmas_i2c_probe()
609 if (pdata->mux_from_pdata) { in palmas_i2c_probe()
610 reg = pdata->pad1; in palmas_i2c_probe()
611 ret = regmap_write(palmas->regmap[slave], addr, reg); in palmas_i2c_probe()
615 ret = regmap_read(palmas->regmap[slave], addr, ®); in palmas_i2c_probe()
621 palmas->gpio_muxed |= PALMAS_GPIO_0_MUXED; in palmas_i2c_probe()
623 palmas->gpio_muxed |= PALMAS_GPIO_1_MUXED; in palmas_i2c_probe()
626 palmas->led_muxed |= PALMAS_LED1_MUXED; in palmas_i2c_probe()
629 palmas->pwm_muxed |= PALMAS_PWM1_MUXED; in palmas_i2c_probe()
631 palmas->gpio_muxed |= PALMAS_GPIO_2_MUXED; in palmas_i2c_probe()
634 palmas->led_muxed |= PALMAS_LED2_MUXED; in palmas_i2c_probe()
637 palmas->pwm_muxed |= PALMAS_PWM2_MUXED; in palmas_i2c_probe()
639 palmas->gpio_muxed |= PALMAS_GPIO_3_MUXED; in palmas_i2c_probe()
641 addr = PALMAS_BASE_TO_REG(PALMAS_PU_PD_OD_BASE, in palmas_i2c_probe()
644 if (pdata->mux_from_pdata) { in palmas_i2c_probe()
645 reg = pdata->pad2; in palmas_i2c_probe()
646 ret = regmap_write(palmas->regmap[slave], addr, reg); in palmas_i2c_probe()
650 ret = regmap_read(palmas->regmap[slave], addr, ®); in palmas_i2c_probe()
656 palmas->gpio_muxed |= PALMAS_GPIO_4_MUXED; in palmas_i2c_probe()
658 palmas->gpio_muxed |= PALMAS_GPIO_5_MUXED; in palmas_i2c_probe()
660 palmas->gpio_muxed |= PALMAS_GPIO_6_MUXED; in palmas_i2c_probe()
662 palmas->gpio_muxed |= PALMAS_GPIO_7_MUXED; in palmas_i2c_probe()
664 dev_info(palmas->dev, "Muxing GPIO %x, PWM %x, LED %x\n", in palmas_i2c_probe()
665 palmas->gpio_muxed, palmas->pwm_muxed, in palmas_i2c_probe()
666 palmas->led_muxed); in palmas_i2c_probe()
668 reg = pdata->power_ctrl; in palmas_i2c_probe()
670 slave = PALMAS_BASE_TO_SLAVE(PALMAS_PMU_CONTROL_BASE); in palmas_i2c_probe()
671 addr = PALMAS_BASE_TO_REG(PALMAS_PMU_CONTROL_BASE, PALMAS_POWER_CTRL); in palmas_i2c_probe()
673 ret = regmap_write(palmas->regmap[slave], addr, reg); in palmas_i2c_probe()
682 ret = devm_of_platform_populate(&i2c->dev); in palmas_i2c_probe()
685 } else if (pdata->pm_off && !pm_power_off) { in palmas_i2c_probe()
694 regmap_del_irq_chip(palmas->irq, palmas->irq_data); in palmas_i2c_probe()
697 if (palmas->i2c_clients[i]) in palmas_i2c_probe()
698 i2c_unregister_device(palmas->i2c_clients[i]); in palmas_i2c_probe()
703 static int palmas_i2c_remove(struct i2c_client *i2c) in palmas_i2c_remove() argument
705 struct palmas *palmas = i2c_get_clientdata(i2c); in palmas_i2c_remove()
708 regmap_del_irq_chip(palmas->irq, palmas->irq_data); in palmas_i2c_remove()
711 if (palmas->i2c_clients[i]) in palmas_i2c_remove()
712 i2c_unregister_device(palmas->i2c_clients[i]); in palmas_i2c_remove()
730 MODULE_DEVICE_TABLE(i2c, palmas_i2c_id);
756 MODULE_DESCRIPTION("Palmas chip family multi-function driver");