1 /*-
28  * X-Powers AXP803/813/818 PMU for Allwinner SoCs
193 #define	 AXP_BAP_CAP_WARN_LV1BASE	5	/* 5-20%, 1% per step */
215 	{ "x-powers,axp803",			AXP803 },
216 	{ "x-powers,axp813",			AXP813 },
217 	{ "x-powers,axp818",			AXP813 },
223 	{ -1, 0 }
527 		.name = "ldo-io0",
540 		.name = "ldo-io1",
654 	int			batsense_step;  /* uV */
701 	/* Warning, shutdown thresholds */
706 #define	AXP_LOCK(sc)	mtx_lock(&(sc)->mtx)
707 #define	AXP_UNLOCK(sc)	mtx_unlock(&(sc)->mtx)
719 	msg[0].slave = sc->addr;  in axp8xx_read()
724 	msg[1].slave = sc->addr;  in axp8xx_read()
740 	msg[0].slave = sc->addr;  in axp8xx_write()
745 	msg[1].slave = sc->addr;  in axp8xx_write()
760 	if (param->min_uvolt == 0)  in axp8xx_regnode_init()
768 	rv = axp8xx_regnode_set_voltage(regnode, param->min_uvolt,  in axp8xx_regnode_init()
769 	    param->max_uvolt, &udelay);  in axp8xx_regnode_init()
785 		device_printf(sc->base_dev, "%sable %s (%s)\n",  in axp8xx_regnode_enable()
788 		    sc->def->name);  in axp8xx_regnode_enable()
790 	axp8xx_read(sc->base_dev, sc->def->enable_reg, &val, 1);  in axp8xx_regnode_enable()
791 	val &= ~sc->def->enable_mask;  in axp8xx_regnode_enable()
793 		val |= sc->def->enable_value;  in axp8xx_regnode_enable()
795 		if (sc->def->disable_value)  in axp8xx_regnode_enable()
796 			val |= sc->def->disable_value;  in axp8xx_regnode_enable()
798 			val &= ~sc->def->enable_value;  in axp8xx_regnode_enable()
800 	axp8xx_write(sc->base_dev, sc->def->enable_reg, val);  in axp8xx_regnode_enable()
808 axp8xx_regnode_reg_to_voltage(struct axp8xx_reg_sc *sc, uint8_t val, int *uv)  in axp8xx_regnode_reg_to_voltage()  argument
810 	if (val < sc->def->voltage_nstep1)  in axp8xx_regnode_reg_to_voltage()
811 		*uv = sc->def->voltage_min + val * sc->def->voltage_step1;  in axp8xx_regnode_reg_to_voltage()
813 		*uv = sc->def->voltage_min +  in axp8xx_regnode_reg_to_voltage()
814 		    (sc->def->voltage_nstep1 * sc->def->voltage_step1) +  in axp8xx_regnode_reg_to_voltage()
815 		    ((val - sc->def->voltage_nstep1) * sc->def->voltage_step2);  in axp8xx_regnode_reg_to_voltage()
816 	*uv *= 1000;  in axp8xx_regnode_reg_to_voltage()
827 	uvolt = sc->def->voltage_min * 1000;  in axp8xx_regnode_voltage_to_reg()
829 	for (nstep = 0; nstep < sc->def->voltage_nstep1 && uvolt < min_uvolt;  in axp8xx_regnode_voltage_to_reg()
832 		uvolt += (sc->def->voltage_step1 * 1000);  in axp8xx_regnode_voltage_to_reg()
834 	for (nstep = 0; nstep < sc->def->voltage_nstep2 && uvolt < min_uvolt;  in axp8xx_regnode_voltage_to_reg()
837 		uvolt += (sc->def->voltage_step2 * 1000);  in axp8xx_regnode_voltage_to_reg()
855 	axp8xx_read(sc->base_dev, sc->def->enable_reg, &val, 1);  in axp8xx_regnode_status()
856 	if (val & sc->def->enable_mask)  in axp8xx_regnode_status()
872 		device_printf(sc->base_dev, "Setting %s (%s) to %d<->%d\n",  in axp8xx_regnode_set_voltage()
874 		    sc->def->name,  in axp8xx_regnode_set_voltage()
877 	if (sc->def->voltage_step1 == 0)  in axp8xx_regnode_set_voltage()
883 	axp8xx_write(sc->base_dev, sc->def->voltage_reg, val);  in axp8xx_regnode_set_voltage()
898 	if (!sc->def->voltage_step1 || !sc->def->voltage_step2)  in axp8xx_regnode_get_voltage()
901 	axp8xx_read(sc->base_dev, sc->def->voltage_reg, &val, 1);  in axp8xx_regnode_get_voltage()
931 		device_printf(dev, "Shutdown Axp8xx\n");  in axp8xx_shutdown()
951 	if (error || !req->newptr) /* error || read request */  in axp8xx_sysctl_chargecurrent()
975 	c = sc->config;  in axp8xx_sysctl()
977 	for (found = 0, i = 0; i < sc->nsensors; i++) {  in axp8xx_sysctl()
978 		if (sc->sensors[i].id == sensor) {  in axp8xx_sysctl()
1010 			if (batt_val <= sc->shut_thres)  in axp8xx_sysctl()
1012 			else if (batt_val <= sc->warn_thres)  in axp8xx_sysctl()
1027 			val *= c->batsense_step;  in axp8xx_sysctl()
1036 			val *= c->charge_step;  in axp8xx_sysctl()
1045 			val *= c->discharge_step;  in axp8xx_sysctl()
1052 			val *= c->maxcap_step;  in axp8xx_sysctl()
1059 			val *= c->coulomb_step;  in axp8xx_sysctl()
1131 			devctl_notify("PMU", "Battery", "shutdown-threshold", NULL);  in axp8xx_intr()
1133 			devctl_notify("PMU", "Battery", "warning-threshold", NULL);  in axp8xx_intr()
1169 	return (sc->gpiodev);  in axp8xx_gpio_get_bus()
1175 	*maxpin = nitems(axp8xx_pins) - 1;  in axp8xx_gpio_pin_max()
1398 		initdef.std_param.min_uvolt = def->voltage_min * 1000;  in axp8xx_reg_attach()
1400 		initdef.std_param.max_uvolt = def->voltage_max * 1000;  in axp8xx_reg_attach()
1401 	initdef.id = def->id;  in axp8xx_reg_attach()
1410 	reg_sc->regnode = regnode;  in axp8xx_reg_attach()
1411 	reg_sc->base_dev = dev;  in axp8xx_reg_attach()
1412 	reg_sc->def = def;  in axp8xx_reg_attach()
1413 	reg_sc->xref = OF_xref_from_node(node);  in axp8xx_reg_attach()
1414 	reg_sc->param = regnode_get_stdparam(regnode);  in axp8xx_reg_attach()
1429 	for (i = 0; i < sc->nregs; i++) {  in axp8xx_regdev_map()
1430 		if (sc->regs[i] == NULL)  in axp8xx_regdev_map()
1432 		if (sc->regs[i]->xref == xref) {  in axp8xx_regdev_map()
1433 			*num = sc->regs[i]->def->id;  in axp8xx_regdev_map()
1447 	switch (ofw_bus_search_compatible(dev, compat_data)->ocd_data)  in axp8xx_probe()
1450 		device_set_desc(dev, "X-Powers AXP803 Power Management Unit");  in axp8xx_probe()
1453 		device_set_desc(dev, "X-Powers AXP813 Power Management Unit");  in axp8xx_probe()
1473 	sc->addr = iicbus_get_addr(dev);  in axp8xx_attach()
1474 	mtx_init(&sc->mtx, device_get_nameunit(dev), NULL, MTX_DEF);  in axp8xx_attach()
1476 	error = bus_alloc_resources(dev, axp8xx_spec, &sc->res);  in axp8xx_attach()
1487 	sc->nregs = nitems(axp8xx_common_regdefs);  in axp8xx_attach()
1488 	sc->type = ofw_bus_search_compatible(dev, compat_data)->ocd_data;  in axp8xx_attach()
1489 	switch (sc->type) {  in axp8xx_attach()
1491 		sc->nregs += nitems(axp803_regdefs);  in axp8xx_attach()
1494 		sc->nregs += nitems(axp813_regdefs);  in axp8xx_attach()
1497 	sc->config = &axp803_config;  in axp8xx_attach()
1498 	sc->sensors = axp8xx_common_sensors;  in axp8xx_attach()
1499 	sc->nsensors = nitems(axp8xx_common_sensors);  in axp8xx_attach()
1501 	sc->regs = malloc(sizeof(struct axp8xx_reg_sc *) * sc->nregs,  in axp8xx_attach()
1507 		for (i = 0; i < sc->nregs; i++) {  in axp8xx_attach()
1517 				off = i - nitems(axp8xx_common_regdefs);  in axp8xx_attach()
1518 				switch (sc->type) {  in axp8xx_attach()
1541 			sc->regs[i] = reg;  in axp8xx_attach()
1546 	for (i = 0; i < sc->nsensors; i++) {  in axp8xx_attach()
1549 		    OID_AUTO, sc->sensors[i].name,  in axp8xx_attach()
1551 		    dev, sc->sensors[i].id, axp8xx_sysctl,  in axp8xx_attach()
1552 		    sc->sensors[i].format,  in axp8xx_attach()
1553 		    sc->sensors[i].desc);  in axp8xx_attach()
1568 		sc->warn_thres = (val & AXP_BAT_CAP_WARN_LV1) >> 4;  in axp8xx_attach()
1569 		sc->warn_thres += AXP_BAP_CAP_WARN_LV1BASE;  in axp8xx_attach()
1570 		sc->shut_thres = (val & AXP_BAT_CAP_WARN_LV2);  in axp8xx_attach()
1575 			    "Warning threshold: 0x%02x\n", sc->warn_thres);  in axp8xx_attach()
1577 			    "Shutdown threshold: 0x%02x\n", sc->shut_thres);  in axp8xx_attach()
1602 	error = bus_setup_intr(dev, sc->res, INTR_TYPE_MISC | INTR_MPSAFE,  in axp8xx_attach()
1603 	    NULL, axp8xx_intr, dev, &sc->ih);  in axp8xx_attach()
1612 	sc->gpiodev = gpiobus_attach_bus(dev);  in axp8xx_attach()