1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * twl-regulator.c -- support regulators in twl4030/twl6030 family chips
26  * These chips are often used in OMAP-based systems.
28  * This driver implements software-based resource control for various
40 	/* voltage in mV = table[VSEL]; table_len must be a power-of-two */
82 			&value, info->base + offset);  in twlreg_read()
91 			value, info->base + offset);  in twlreg_write()
94 /*----------------------------------------------------------------------*/
105  * Enable/disable regulators by joining/leaving the P1 (processor) group.
148 		timeout--;  in twl4030_wait_pb_ready()
151 	return -ETIMEDOUT;  in twl4030_wait_pb_ready()
253 		message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_ACTIVE);  in twl4030reg_set_mode()
256 		message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_SLEEP);  in twl4030reg_set_mode()
259 		return -EINVAL;  in twl4030reg_set_mode()
277 /*----------------------------------------------------------------------*/
280  * Support for adjustable-voltage LDOs uses a four bit (or less) voltage
299 	 !((info)->features & TWL4030_ALLOW_UNSUPPORTED))
376 	int			mV = info->table[index];  in twl4030ldo_list_voltage()
398 	vsel &= info->table_len - 1;  in twl4030ldo_get_voltage_sel()
409 	.disable	= twl4030reg_disable,
422 	int vsel = DIV_ROUND_UP(min_uV - 600000, 12500);  in twl4030smps_set_voltage()
447 /*----------------------------------------------------------------------*/
453 	.disable	= twl4030reg_disable,
461 /*----------------------------------------------------------------------*/
547 #define TWL_OF_MATCH(comp, family, label) \  argument
549 		.compatible = comp, \
553 #define TWL4030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL4030, label)  argument
554 #define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label)  argument
555 #define TWL6032_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6032, label)  argument
556 #define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label)  argument
557 #define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label)  argument
560 	TWL4030_OF_MATCH("ti,twl4030-vaux1", VAUX1),
561 	TWL4030_OF_MATCH("ti,twl4030-vaux2", VAUX2_4030),
562 	TWL4030_OF_MATCH("ti,twl5030-vaux2", VAUX2),
563 	TWL4030_OF_MATCH("ti,twl4030-vaux3", VAUX3),
564 	TWL4030_OF_MATCH("ti,twl4030-vaux4", VAUX4),
565 	TWL4030_OF_MATCH("ti,twl4030-vmmc1", VMMC1),
566 	TWL4030_OF_MATCH("ti,twl4030-vmmc2", VMMC2),
567 	TWL4030_OF_MATCH("ti,twl4030-vpll1", VPLL1),
568 	TWL4030_OF_MATCH("ti,twl4030-vpll2", VPLL2),
569 	TWL4030_OF_MATCH("ti,twl4030-vsim", VSIM),
570 	TWL4030_OF_MATCH("ti,twl4030-vdac", VDAC),
571 	TWL4030_OF_MATCH("ti,twl4030-vintana2", VINTANA2),
572 	TWL4030_OF_MATCH("ti,twl4030-vio", VIO),
573 	TWL4030_OF_MATCH("ti,twl4030-vdd1", VDD1),
574 	TWL4030_OF_MATCH("ti,twl4030-vdd2", VDD2),
575 	TWLFIXED_OF_MATCH("ti,twl4030-vintana1", VINTANA1),
576 	TWLFIXED_OF_MATCH("ti,twl4030-vintdig", VINTDIG),
577 	TWLFIXED_OF_MATCH("ti,twl4030-vusb1v5", VUSB1V5),
578 	TWLFIXED_OF_MATCH("ti,twl4030-vusb1v8", VUSB1V8),
579 	TWLFIXED_OF_MATCH("ti,twl4030-vusb3v1", VUSB3V1),
594 	template = of_device_get_match_data(&pdev->dev);  in twlreg_probe()
596 		return -ENODEV;  in twlreg_probe()
598 	id = template->desc.id;  in twlreg_probe()
599 	initdata = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node,  in twlreg_probe()
600 						&template->desc);  in twlreg_probe()
602 		return -EINVAL;  in twlreg_probe()
604 	info = devm_kmemdup(&pdev->dev, template, sizeof(*info), GFP_KERNEL);  in twlreg_probe()
606 		return -ENOMEM;  in twlreg_probe()
608 	/* Constrain board-specific capabilities according to what  in twlreg_probe()
611 	c = &initdata->constraints;  in twlreg_probe()
612 	c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY;  in twlreg_probe()
613 	c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE  in twlreg_probe()
624 		c->always_on = true;  in twlreg_probe()
630 	config.dev = &pdev->dev;  in twlreg_probe()
633 	config.of_node = pdev->dev.of_node;  in twlreg_probe()
635 	rdev = devm_regulator_register(&pdev->dev, &info->desc, &config);  in twlreg_probe()
637 		dev_err(&pdev->dev, "can't register %s, %ld\n",  in twlreg_probe()
638 				info->desc.name, PTR_ERR(rdev));  in twlreg_probe()
643 	twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_REMAP, info->remap);  in twlreg_probe()
645 	/* NOTE:  many regulators support short-circuit IRQs (presentable  in twlreg_probe()
647 	 *  - SC_CONFIG  in twlreg_probe()
648 	 *  - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4)  in twlreg_probe()
649 	 *  - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2)  in twlreg_probe()
650 	 *  - IT_CONFIG  in twlreg_probe()