1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * twl-regulator.c -- support regulators in twl4030/twl6030 family chips
24  * include an audio codec, battery charger, and more voltage regulators.
25  * These chips are often used in OMAP-based systems.
27  * This driver implements software-based resource control for various
39 	/* voltage in mV = table[VSEL]; table_len must be a power-of-two */
68 /* TWL6030 register offsets */
81 			&value, info->base + offset);  in twlreg_read()
90 			value, info->base + offset);  in twlreg_write()
93 /*----------------------------------------------------------------------*/
147 		timeout--;  in twl4030_wait_pb_ready()
150 	return -ETIMEDOUT;  in twl4030_wait_pb_ready()
246 		message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_ACTIVE);  in twl4030reg_set_mode()
249 		message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_SLEEP);  in twl4030reg_set_mode()
252 		return -EINVAL;  in twl4030reg_set_mode()
270 /*----------------------------------------------------------------------*/
273  * Support for adjustable-voltage LDOs uses a four bit (or less) voltage
292 	 !((info)->features & TWL4030_ALLOW_UNSUPPORTED))
369 	int			mV = info->table[index];  in twl4030ldo_list_voltage()
391 	vsel &= info->table_len - 1;  in twl4030ldo_get_voltage_sel()
415 	int vsel = DIV_ROUND_UP(min_uV - 600000, 12500);  in twl4030smps_set_voltage()
440 /*----------------------------------------------------------------------*/
454 /*----------------------------------------------------------------------*/
547 #define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label)
553 	TWL4030_OF_MATCH("ti,twl4030-vaux1", VAUX1),
554 	TWL4030_OF_MATCH("ti,twl4030-vaux2", VAUX2_4030),
555 	TWL4030_OF_MATCH("ti,twl5030-vaux2", VAUX2),
556 	TWL4030_OF_MATCH("ti,twl4030-vaux3", VAUX3),
557 	TWL4030_OF_MATCH("ti,twl4030-vaux4", VAUX4),
558 	TWL4030_OF_MATCH("ti,twl4030-vmmc1", VMMC1),
559 	TWL4030_OF_MATCH("ti,twl4030-vmmc2", VMMC2),
560 	TWL4030_OF_MATCH("ti,twl4030-vpll1", VPLL1),
561 	TWL4030_OF_MATCH("ti,twl4030-vpll2", VPLL2),
562 	TWL4030_OF_MATCH("ti,twl4030-vsim", VSIM),
563 	TWL4030_OF_MATCH("ti,twl4030-vdac", VDAC),
564 	TWL4030_OF_MATCH("ti,twl4030-vintana2", VINTANA2),
565 	TWL4030_OF_MATCH("ti,twl4030-vio", VIO),
566 	TWL4030_OF_MATCH("ti,twl4030-vdd1", VDD1),
567 	TWL4030_OF_MATCH("ti,twl4030-vdd2", VDD2),
568 	TWLFIXED_OF_MATCH("ti,twl4030-vintana1", VINTANA1),
569 	TWLFIXED_OF_MATCH("ti,twl4030-vintdig", VINTDIG),
570 	TWLFIXED_OF_MATCH("ti,twl4030-vusb1v5", VUSB1V5),
571 	TWLFIXED_OF_MATCH("ti,twl4030-vusb1v8", VUSB1V8),
572 	TWLFIXED_OF_MATCH("ti,twl4030-vusb3v1", VUSB3V1),
587 	template = of_device_get_match_data(&pdev->dev);  in twlreg_probe()
589 		return -ENODEV;  in twlreg_probe()
591 	id = template->desc.id;  in twlreg_probe()
592 	initdata = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node,  in twlreg_probe()
593 						&template->desc);  in twlreg_probe()
595 		return -EINVAL;  in twlreg_probe()
597 	info = devm_kmemdup(&pdev->dev, template, sizeof(*info), GFP_KERNEL);  in twlreg_probe()
599 		return -ENOMEM;  in twlreg_probe()
601 	/* Constrain board-specific capabilities according to what  in twlreg_probe()
604 	c = &initdata->constraints;  in twlreg_probe()
605 	c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY;  in twlreg_probe()
606 	c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE  in twlreg_probe()
617 		c->always_on = true;  in twlreg_probe()
623 	config.dev = &pdev->dev;  in twlreg_probe()
626 	config.of_node = pdev->dev.of_node;  in twlreg_probe()
628 	rdev = devm_regulator_register(&pdev->dev, &info->desc, &config);  in twlreg_probe()
630 		dev_err(&pdev->dev, "can't register %s, %ld\n",  in twlreg_probe()
631 				info->desc.name, PTR_ERR(rdev));  in twlreg_probe()
636 	twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_REMAP, info->remap);  in twlreg_probe()
638 	/* NOTE:  many regulators support short-circuit IRQs (presentable  in twlreg_probe()
640 	 *  - SC_CONFIG  in twlreg_probe()
641 	 *  - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4)  in twlreg_probe()
642 	 *  - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2)  in twlreg_probe()
643 	 *  - IT_CONFIG  in twlreg_probe()