1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
10 #include <linux/pinctrl/pinconf-generic.h>
18 #include <dt-bindings/pinctrl/qcom,pmic-mpp.h>
21 #include "../pinctrl-utils.h"
26  * Pull Up Values - it indicates whether a pull-up should be
104  * struct pmic_mpp_pad - keep current MPP settings
110  * @input_enabled: Set to true if MPP input buffer logic is enabled.
113  * @num_sources: Number of power-sources supported by this MPP.
114  * @power_source: Current power-source used.
120  * @dtest: DTEST route selector
138 	unsigned int	dtest;  member
149 	{"qcom,amux-route",	PMIC_MPP_CONF_AMUX_ROUTE,	0},
150 	{"qcom,analog-level",	PMIC_MPP_CONF_ANALOG_LEVEL,	0},
151 	{"qcom,dtest",		PMIC_MPP_CONF_DTEST_SELECTOR,	0},
159 	PCONFDUMP(PMIC_MPP_CONF_DTEST_SELECTOR, "dtest", NULL, true),
182 	ret = regmap_read(state->map, pad->base + addr, &val);  in pmic_mpp_read()
184 		dev_err(state->dev, "read 0x%x failed\n", addr);  in pmic_mpp_read()
197 	ret = regmap_write(state->map, pad->base + addr, val);  in pmic_mpp_write()
199 		dev_err(state->dev, "write 0x%x failed\n", addr);  in pmic_mpp_write()
207 	return pctldev->desc->npins;  in pmic_mpp_get_groups_count()
213 	return pctldev->desc->pins[pin].name;  in pmic_mpp_get_group_name()
220 	*pins = &pctldev->desc->pins[pin].number;  in pmic_mpp_get_group_pins()
250 	*num_qgroups = pctldev->desc->npins;  in pmic_mpp_get_function_groups()
262 	switch (pad->function) {  in pmic_mpp_write_mode_ctl()
264 		if (pad->input_enabled && pad->output_enabled)  in pmic_mpp_write_mode_ctl()
266 		else if (pad->input_enabled)  in pmic_mpp_write_mode_ctl()
272 		if (pad->input_enabled && pad->output_enabled)  in pmic_mpp_write_mode_ctl()
274 		else if (pad->input_enabled)  in pmic_mpp_write_mode_ctl()
285 	if (pad->dtest)  in pmic_mpp_write_mode_ctl()
286 		sel = PMIC_MPP_SELECTOR_DTEST_FIRST + pad->dtest - 1;  in pmic_mpp_write_mode_ctl()
287 	else if (pad->paired)  in pmic_mpp_write_mode_ctl()
292 	en = !!pad->out_value;  in pmic_mpp_write_mode_ctl()
309 	pad = pctldev->desc->pins[pin].drv_data;  in pmic_mpp_set_mux()
311 	pad->function = function;  in pmic_mpp_set_mux()
317 	val = pad->is_enabled << PMIC_MPP_REG_MASTER_EN_SHIFT;  in pmic_mpp_set_mux()
336 	pad = pctldev->desc->pins[pin].drv_data;  in pmic_mpp_config_get()
340 		if (pad->pullup != PMIC_MPP_PULL_UP_OPEN)  in pmic_mpp_config_get()
341 			return -EINVAL;  in pmic_mpp_config_get()
345 		switch (pad->pullup) {  in pmic_mpp_config_get()
356 			return -EINVAL;  in pmic_mpp_config_get()
360 		if (pad->is_enabled)  in pmic_mpp_config_get()
361 			return -EINVAL;  in pmic_mpp_config_get()
365 		arg = pad->power_source;  in pmic_mpp_config_get()
368 		if (!pad->input_enabled)  in pmic_mpp_config_get()
369 			return -EINVAL;  in pmic_mpp_config_get()
373 		arg = pad->out_value;  in pmic_mpp_config_get()
376 		arg = pad->dtest;  in pmic_mpp_config_get()
379 		arg = pad->amux_input;  in pmic_mpp_config_get()
382 		if (!pad->paired)  in pmic_mpp_config_get()
383 			return -EINVAL;  in pmic_mpp_config_get()
387 		arg = pad->drive_strength;  in pmic_mpp_config_get()
390 		arg = pad->aout_level;  in pmic_mpp_config_get()
393 		return -EINVAL;  in pmic_mpp_config_get()
410 	pad = pctldev->desc->pins[pin].drv_data;  in pmic_mpp_config_set()
413 	pad->is_enabled = true;  in pmic_mpp_config_set()
421 			pad->pullup = PMIC_MPP_PULL_UP_OPEN;  in pmic_mpp_config_set()
426 				pad->pullup = PMIC_MPP_PULL_UP_0P6KOHM;  in pmic_mpp_config_set()
429 				pad->pullup = PMIC_MPP_PULL_UP_10KOHM;  in pmic_mpp_config_set()
432 				pad->pullup = PMIC_MPP_PULL_UP_30KOHM;  in pmic_mpp_config_set()
435 				return -EINVAL;  in pmic_mpp_config_set()
439 			pad->is_enabled = false;  in pmic_mpp_config_set()
442 			if (arg >= pad->num_sources)  in pmic_mpp_config_set()
443 				return -EINVAL;  in pmic_mpp_config_set()
444 			pad->power_source = arg;  in pmic_mpp_config_set()
447 			pad->input_enabled = arg ? true : false;  in pmic_mpp_config_set()
450 			pad->output_enabled = true;  in pmic_mpp_config_set()
451 			pad->out_value = arg;  in pmic_mpp_config_set()
454 			pad->dtest = arg;  in pmic_mpp_config_set()
457 			pad->drive_strength = arg;  in pmic_mpp_config_set()
461 				return -EINVAL;  in pmic_mpp_config_set()
462 			pad->amux_input = arg;  in pmic_mpp_config_set()
465 			pad->aout_level = arg;  in pmic_mpp_config_set()
468 			pad->paired = !!arg;  in pmic_mpp_config_set()
471 			return -EINVAL;  in pmic_mpp_config_set()
475 	val = pad->power_source << PMIC_MPP_REG_VIN_SHIFT;  in pmic_mpp_config_set()
481 	if (pad->has_pullup) {  in pmic_mpp_config_set()
482 		val = pad->pullup << PMIC_MPP_REG_PULL_SHIFT;  in pmic_mpp_config_set()
490 	val = pad->amux_input & PMIC_MPP_REG_AIN_ROUTE_MASK;  in pmic_mpp_config_set()
496 	ret = pmic_mpp_write(state, pad, PMIC_MPP_REG_AOUT_CTL, pad->aout_level);  in pmic_mpp_config_set()
504 	ret = pmic_mpp_write(state, pad, PMIC_MPP_REG_SINK_CTL, pad->drive_strength);  in pmic_mpp_config_set()
508 	val = pad->is_enabled << PMIC_MPP_REG_MASTER_EN_SHIFT;  in pmic_mpp_config_set()
524 	pad = pctldev->desc->pins[pin].drv_data;  in pmic_mpp_config_dbg_show()
526 	seq_printf(s, " mpp%-2d:", pin + PMIC_MPP_PHYSICAL_OFFSET);  in pmic_mpp_config_dbg_show()
528 	if (!pad->is_enabled) {  in pmic_mpp_config_dbg_show()
529 		seq_puts(s, " ---");  in pmic_mpp_config_dbg_show()
532 		if (pad->input_enabled) {  in pmic_mpp_config_dbg_show()
538 			pad->out_value = ret;  in pmic_mpp_config_dbg_show()
541 		seq_printf(s, " %-4s", pad->output_enabled ? "out" : "in");  in pmic_mpp_config_dbg_show()
542 		seq_printf(s, " %-7s", pmic_mpp_functions[pad->function]);  in pmic_mpp_config_dbg_show()
543 		seq_printf(s, " vin-%d", pad->power_source);  in pmic_mpp_config_dbg_show()
544 		seq_printf(s, " %d", pad->aout_level);  in pmic_mpp_config_dbg_show()
545 		if (pad->has_pullup)  in pmic_mpp_config_dbg_show()
546 			seq_printf(s, " %-8s", biases[pad->pullup]);  in pmic_mpp_config_dbg_show()
547 		seq_printf(s, " %-4s", pad->out_value ? "high" : "low");  in pmic_mpp_config_dbg_show()
548 		if (pad->dtest)  in pmic_mpp_config_dbg_show()
549 			seq_printf(s, " dtest%d", pad->dtest);  in pmic_mpp_config_dbg_show()
550 		if (pad->paired)  in pmic_mpp_config_dbg_show()
569 	return pmic_mpp_config_set(state->ctrl, pin, &config, 1);  in pmic_mpp_direction_input()
580 	return pmic_mpp_config_set(state->ctrl, pin, &config, 1);  in pmic_mpp_direction_output()
589 	pad = state->ctrl->desc->pins[pin].drv_data;  in pmic_mpp_get()
591 	if (pad->input_enabled) {  in pmic_mpp_get()
596 		pad->out_value = ret & PMIC_MPP_REG_RT_STS_VAL_MASK;  in pmic_mpp_get()
599 	return !!pad->out_value;  in pmic_mpp_get()
609 	pmic_mpp_config_set(state->ctrl, pin, &config, 1);  in pmic_mpp_set()
616 	if (chip->of_gpio_n_cells < 2)  in pmic_mpp_of_xlate()
617 		return -EINVAL;  in pmic_mpp_of_xlate()
620 		*flags = gpio_desc->args[1];  in pmic_mpp_of_xlate()
622 	return gpio_desc->args[0] - PMIC_MPP_PHYSICAL_OFFSET;  in pmic_mpp_of_xlate()
630 	pad = state->ctrl->desc->pins[pin].drv_data;  in pmic_mpp_to_irq()
632 	return pad->irq;  in pmic_mpp_to_irq()
640 	for (i = 0; i < chip->ngpio; i++) {  in pmic_mpp_dbg_show()
641 		pmic_mpp_config_dbg_show(state->ctrl, s, i);  in pmic_mpp_dbg_show()
669 		dev_err(state->dev, "incorrect block type 0x%x at 0x%x\n",  in pmic_mpp_populate()
670 			type, pad->base);  in pmic_mpp_populate()
671 		return -ENODEV;  in pmic_mpp_populate()
684 		pad->num_sources = 4;  in pmic_mpp_populate()
687 		pad->num_sources = 8;  in pmic_mpp_populate()
690 		dev_err(state->dev, "unknown MPP type 0x%x at 0x%x\n",  in pmic_mpp_populate()
691 			subtype, pad->base);  in pmic_mpp_populate()
692 		return -ENODEV;  in pmic_mpp_populate()
699 	pad->out_value = val & PMIC_MPP_REG_MODE_VALUE_MASK;  in pmic_mpp_populate()
706 		pad->input_enabled = true;  in pmic_mpp_populate()
707 		pad->output_enabled = false;  in pmic_mpp_populate()
708 		pad->function = PMIC_MPP_DIGITAL;  in pmic_mpp_populate()
711 		pad->input_enabled = false;  in pmic_mpp_populate()
712 		pad->output_enabled = true;  in pmic_mpp_populate()
713 		pad->function = PMIC_MPP_DIGITAL;  in pmic_mpp_populate()
716 		pad->input_enabled = true;  in pmic_mpp_populate()
717 		pad->output_enabled = true;  in pmic_mpp_populate()
718 		pad->function = PMIC_MPP_DIGITAL;  in pmic_mpp_populate()
721 		pad->input_enabled = true;  in pmic_mpp_populate()
722 		pad->output_enabled = true;  in pmic_mpp_populate()
723 		pad->function = PMIC_MPP_ANALOG;  in pmic_mpp_populate()
726 		pad->input_enabled = true;  in pmic_mpp_populate()
727 		pad->output_enabled = false;  in pmic_mpp_populate()
728 		pad->function = PMIC_MPP_ANALOG;  in pmic_mpp_populate()
731 		pad->input_enabled = false;  in pmic_mpp_populate()
732 		pad->output_enabled = true;  in pmic_mpp_populate()
733 		pad->function = PMIC_MPP_ANALOG;  in pmic_mpp_populate()
736 		pad->input_enabled = false;  in pmic_mpp_populate()
737 		pad->output_enabled = true;  in pmic_mpp_populate()
738 		pad->function = PMIC_MPP_SINK;  in pmic_mpp_populate()
741 		dev_err(state->dev, "unknown MPP direction\n");  in pmic_mpp_populate()
742 		return -ENODEV;  in pmic_mpp_populate()
749 		pad->dtest = sel + 1;  in pmic_mpp_populate()
751 		pad->paired = true;  in pmic_mpp_populate()
757 	pad->power_source = val >> PMIC_MPP_REG_VIN_SHIFT;  in pmic_mpp_populate()
758 	pad->power_source &= PMIC_MPP_REG_VIN_MASK;  in pmic_mpp_populate()
766 		pad->pullup = val >> PMIC_MPP_REG_PULL_SHIFT;  in pmic_mpp_populate()
767 		pad->pullup &= PMIC_MPP_REG_PULL_MASK;  in pmic_mpp_populate()
768 		pad->has_pullup = true;  in pmic_mpp_populate()
775 	pad->amux_input = val >> PMIC_MPP_REG_AIN_ROUTE_SHIFT;  in pmic_mpp_populate()
776 	pad->amux_input &= PMIC_MPP_REG_AIN_ROUTE_MASK;  in pmic_mpp_populate()
782 	pad->drive_strength = val;  in pmic_mpp_populate()
788 	pad->aout_level = val;  in pmic_mpp_populate()
794 	pad->is_enabled = !!val;  in pmic_mpp_populate()
801 	struct device *dev = &pdev->dev;  in pmic_mpp_probe()
809 	ret = of_property_read_u32(dev->of_node, "reg", &reg);  in pmic_mpp_probe()
817 		return -EINVAL;  in pmic_mpp_probe()
825 		return -ENOMEM;  in pmic_mpp_probe()
829 	state->dev = &pdev->dev;  in pmic_mpp_probe()
830 	state->map = dev_get_regmap(dev->parent, NULL);  in pmic_mpp_probe()
834 		return -ENOMEM;  in pmic_mpp_probe()
838 		return -ENOMEM;  in pmic_mpp_probe()
842 		return -ENOMEM;  in pmic_mpp_probe()
844 	pctrldesc->pctlops = &pmic_mpp_pinctrl_ops;  in pmic_mpp_probe()
845 	pctrldesc->pmxops = &pmic_mpp_pinmux_ops;  in pmic_mpp_probe()
846 	pctrldesc->confops = &pmic_mpp_pinconf_ops;  in pmic_mpp_probe()
847 	pctrldesc->owner = THIS_MODULE;  in pmic_mpp_probe()
848 	pctrldesc->name = dev_name(dev);  in pmic_mpp_probe()
849 	pctrldesc->pins = pindesc;  in pmic_mpp_probe()
850 	pctrldesc->npins = npins;  in pmic_mpp_probe()
852 	pctrldesc->num_custom_params = ARRAY_SIZE(pmic_mpp_bindings);  in pmic_mpp_probe()
853 	pctrldesc->custom_params = pmic_mpp_bindings;  in pmic_mpp_probe()
855 	pctrldesc->custom_conf_items = pmic_conf_items;  in pmic_mpp_probe()
860 		pindesc->drv_data = pad;  in pmic_mpp_probe()
861 		pindesc->number = i;  in pmic_mpp_probe()
862 		pindesc->name = pmic_mpp_groups[i];  in pmic_mpp_probe()
864 		pad->irq = platform_get_irq(pdev, i);  in pmic_mpp_probe()
865 		if (pad->irq < 0)  in pmic_mpp_probe()
866 			return pad->irq;  in pmic_mpp_probe()
868 		pad->base = reg + i * PMIC_MPP_ADDRESS_RANGE;  in pmic_mpp_probe()
875 	state->chip = pmic_mpp_gpio_template;  in pmic_mpp_probe()
876 	state->chip.parent = dev;  in pmic_mpp_probe()
877 	state->chip.base = -1;  in pmic_mpp_probe()
878 	state->chip.ngpio = npins;  in pmic_mpp_probe()
879 	state->chip.label = dev_name(dev);  in pmic_mpp_probe()
880 	state->chip.of_gpio_n_cells = 2;  in pmic_mpp_probe()
881 	state->chip.can_sleep = false;  in pmic_mpp_probe()
883 	state->ctrl = devm_pinctrl_register(dev, pctrldesc, state);  in pmic_mpp_probe()
884 	if (IS_ERR(state->ctrl))  in pmic_mpp_probe()
885 		return PTR_ERR(state->ctrl);  in pmic_mpp_probe()
887 	ret = gpiochip_add_data(&state->chip, state);  in pmic_mpp_probe()
889 		dev_err(state->dev, "can't add gpio chip\n");  in pmic_mpp_probe()
893 	ret = gpiochip_add_pin_range(&state->chip, dev_name(dev), 0, 0, npins);  in pmic_mpp_probe()
902 	gpiochip_remove(&state->chip);  in pmic_mpp_probe()
910 	gpiochip_remove(&state->chip);  in pmic_mpp_remove()
915 	{ .compatible = "qcom,pm8841-mpp" },	/* 4 MPP's */
916 	{ .compatible = "qcom,pm8916-mpp" },	/* 4 MPP's */
917 	{ .compatible = "qcom,pm8941-mpp" },	/* 8 MPP's */
918 	{ .compatible = "qcom,pm8950-mpp" },	/* 4 MPP's */
919 	{ .compatible = "qcom,pmi8950-mpp" },	/* 4 MPP's */
920 	{ .compatible = "qcom,pm8994-mpp" },	/* 8 MPP's */
921 	{ .compatible = "qcom,pma8084-mpp" },	/* 8 MPP's */
922 	{ .compatible = "qcom,spmi-mpp" },	/* Generic */
930 		   .name = "qcom-spmi-mpp",
939 MODULE_AUTHOR("Ivan T. Ivanov <iivanov@mm-sol.com>");
941 MODULE_ALIAS("platform:qcom-spmi-mpp");