1 // SPDX-License-Identifier: GPL-2.0
3  * MediaTek Pinctrl Moore Driver, which implement the generic dt-binding
4  * pinctrl-bindings.txt for MediaTek SoC.
6  * Copyright (C) 2017-2018 MediaTek Inc.
11 #include <dt-bindings/pinctrl/mt65xx.h>
16 #include "pinctrl-moore.h"
20 /* Custom pinconf parameters */
29 	{"mediatek,pull-up-adv", MTK_PIN_CONFIG_PU_ADV,		1},
30 	{"mediatek,pull-down-adv", MTK_PIN_CONFIG_PD_ADV,	1},
37 	PCONFDUMP(MTK_PIN_CONFIG_PU_ADV, "pu-adv", NULL, true),
38 	PCONFDUMP(MTK_PIN_CONFIG_PD_ADV, "pd-adv", NULL, true),
52 		return -EINVAL;  in mtk_pinmux_set_mux()
56 		return -EINVAL;  in mtk_pinmux_set_mux()
58 	dev_dbg(pctldev->dev, "enable function %s group %s\n",  in mtk_pinmux_set_mux()
59 		func->func.name, grp->grp.name);  in mtk_pinmux_set_mux()
61 	for (i = 0; i < grp->grp.npins; i++) {  in mtk_pinmux_set_mux()
63 		int *pin_modes = grp->data;  in mtk_pinmux_set_mux()
64 		int pin = grp->grp.pins[i];  in mtk_pinmux_set_mux()
66 		desc = (const struct mtk_pin_desc *)&hw->soc->pins[pin];  in mtk_pinmux_set_mux()
67 		if (!desc->name)  in mtk_pinmux_set_mux()
68 			return -ENOTSUPP;  in mtk_pinmux_set_mux()
81 					  struct pinctrl_gpio_range *range,  in mtk_pinmux_gpio_request_enable()  argument
87 	desc = (const struct mtk_pin_desc *)&hw->soc->pins[pin];  in mtk_pinmux_gpio_request_enable()
88 	if (!desc->name)  in mtk_pinmux_gpio_request_enable()
89 		return -ENOTSUPP;  in mtk_pinmux_gpio_request_enable()
92 				hw->soc->gpio_m);  in mtk_pinmux_gpio_request_enable()
96 					 struct pinctrl_gpio_range *range,  in mtk_pinmux_gpio_set_direction()  argument
102 	desc = (const struct mtk_pin_desc *)&hw->soc->pins[pin];  in mtk_pinmux_gpio_set_direction()
103 	if (!desc->name)  in mtk_pinmux_gpio_set_direction()
104 		return -ENOTSUPP;  in mtk_pinmux_gpio_set_direction()
111 			   unsigned int pin, unsigned long *config)  in mtk_pinconf_get()  argument
114 	u32 param = pinconf_to_config_param(*config);  in mtk_pinconf_get()
118 	desc = (const struct mtk_pin_desc *)&hw->soc->pins[pin];  in mtk_pinconf_get()
119 	if (!desc->name)  in mtk_pinconf_get()
120 		return -ENOTSUPP;  in mtk_pinconf_get()
124 		if (hw->soc->bias_get_combo) {  in mtk_pinconf_get()
125 			err = hw->soc->bias_get_combo(hw, desc, &pullup, &ret);  in mtk_pinconf_get()
129 				return -EINVAL;  in mtk_pinconf_get()
130 		} else if (hw->soc->bias_disable_get) {  in mtk_pinconf_get()
131 			err = hw->soc->bias_disable_get(hw, desc, &ret);  in mtk_pinconf_get()
135 			return -ENOTSUPP;  in mtk_pinconf_get()
139 		if (hw->soc->bias_get_combo) {  in mtk_pinconf_get()
140 			err = hw->soc->bias_get_combo(hw, desc, &pullup, &ret);  in mtk_pinconf_get()
144 				return -EINVAL;  in mtk_pinconf_get()
146 				return -EINVAL;  in mtk_pinconf_get()
147 		} else if (hw->soc->bias_get) {  in mtk_pinconf_get()
148 			err = hw->soc->bias_get(hw, desc, 1, &ret);  in mtk_pinconf_get()
152 			return -ENOTSUPP;  in mtk_pinconf_get()
156 		if (hw->soc->bias_get_combo) {  in mtk_pinconf_get()
157 			err = hw->soc->bias_get_combo(hw, desc, &pullup, &ret);  in mtk_pinconf_get()
161 				return -EINVAL;  in mtk_pinconf_get()
163 				return -EINVAL;  in mtk_pinconf_get()
164 		} else if (hw->soc->bias_get) {  in mtk_pinconf_get()
165 			err = hw->soc->bias_get(hw, desc, 0, &ret);  in mtk_pinconf_get()
169 			return -ENOTSUPP;  in mtk_pinconf_get()
178 			return -EINVAL;  in mtk_pinconf_get()
187 		/* HW takes input mode as zero; output mode as non-zero */  in mtk_pinconf_get()
190 			return -EINVAL;  in mtk_pinconf_get()
203 			return -EINVAL;  in mtk_pinconf_get()
207 		if (hw->soc->drive_get) {  in mtk_pinconf_get()
208 			err = hw->soc->drive_get(hw, desc, &ret);  in mtk_pinconf_get()
212 			err = -ENOTSUPP;  in mtk_pinconf_get()
229 		if (hw->soc->adv_pull_get) {  in mtk_pinconf_get()
233 			err = hw->soc->adv_pull_get(hw, desc, pullup, &ret);  in mtk_pinconf_get()
237 			return -ENOTSUPP;  in mtk_pinconf_get()
241 		return -ENOTSUPP;  in mtk_pinconf_get()
244 	*config = pinconf_to_config_packed(param, ret);  in mtk_pinconf_get()
257 	desc = (const struct mtk_pin_desc *)&hw->soc->pins[pin];  in mtk_pinconf_set()
258 	if (!desc->name)  in mtk_pinconf_set()
259 		return -ENOTSUPP;  in mtk_pinconf_set()
267 			if (hw->soc->bias_set_combo) {  in mtk_pinconf_set()
268 				err = hw->soc->bias_set_combo(hw, desc, 0, MTK_DISABLE);  in mtk_pinconf_set()
271 			} else if (hw->soc->bias_disable_set) {  in mtk_pinconf_set()
272 				err = hw->soc->bias_disable_set(hw, desc);  in mtk_pinconf_set()
276 				return -ENOTSUPP;  in mtk_pinconf_set()
280 			if (hw->soc->bias_set_combo) {  in mtk_pinconf_set()
281 				err = hw->soc->bias_set_combo(hw, desc, 1, arg);  in mtk_pinconf_set()
284 			} else if (hw->soc->bias_set) {  in mtk_pinconf_set()
285 				err = hw->soc->bias_set(hw, desc, 1);  in mtk_pinconf_set()
289 				return -ENOTSUPP;  in mtk_pinconf_set()
293 			if (hw->soc->bias_set_combo) {  in mtk_pinconf_set()
294 				err = hw->soc->bias_set_combo(hw, desc, 0, arg);  in mtk_pinconf_set()
297 			} else if (hw->soc->bias_set) {  in mtk_pinconf_set()
298 				err = hw->soc->bias_set(hw, desc, 0);  in mtk_pinconf_set()
302 				return -ENOTSUPP;  in mtk_pinconf_set()
318 			if (hw->soc->ies_present) {  in mtk_pinconf_set()
348 			 * arg = 0: Output mode & SMT disable  in mtk_pinconf_set()
362 			if (hw->soc->drive_set) {  in mtk_pinconf_set()
363 				err = hw->soc->drive_set(hw, desc, arg);  in mtk_pinconf_set()
367 				err = -ENOTSUPP;  in mtk_pinconf_set()
381 			if (hw->soc->adv_pull_set) {  in mtk_pinconf_set()
385 				err = hw->soc->adv_pull_set(hw, desc, pullup,  in mtk_pinconf_set()
390 				return -ENOTSUPP;  in mtk_pinconf_set()
394 			err = -ENOTSUPP;  in mtk_pinconf_set()
402 				 unsigned int group, unsigned long *config)  in mtk_pinconf_group_get()  argument
413 		if (mtk_pinconf_get(pctldev, pins[i], config))  in mtk_pinconf_group_get()
414 			return -ENOTSUPP;  in mtk_pinconf_group_get()
417 		if (i && old != *config)  in mtk_pinconf_group_get()
418 			return -ENOTSUPP;  in mtk_pinconf_group_get()
420 		old = *config;  in mtk_pinconf_group_get()
488 	desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio];  in mtk_gpio_get()
489 	if (!desc->name)  in mtk_gpio_get()
490 		return -ENOTSUPP;  in mtk_gpio_get()
504 	desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio];  in mtk_gpio_set()
505 	if (!desc->name) {  in mtk_gpio_set()
506 		dev_err(hw->dev, "Failed to set gpio %d\n", gpio);  in mtk_gpio_set()
526 	if (!hw->eint)  in mtk_gpio_to_irq()
527 		return -ENOTSUPP;  in mtk_gpio_to_irq()
529 	desc = (const struct mtk_pin_desc *)&hw->soc->pins[offset];  in mtk_gpio_to_irq()
531 	if (desc->eint.eint_n == (u16)EINT_NA)  in mtk_gpio_to_irq()
532 		return -ENOTSUPP;  in mtk_gpio_to_irq()
534 	return mtk_eint_find_irq(hw->eint, desc->eint.eint_n);  in mtk_gpio_to_irq()
538 			       unsigned long config)  in mtk_gpio_set_config()  argument
544 	desc = (const struct mtk_pin_desc *)&hw->soc->pins[offset];  in mtk_gpio_set_config()
545 	if (!desc->name)  in mtk_gpio_set_config()
546 		return -ENOTSUPP;  in mtk_gpio_set_config()
548 	if (!hw->eint ||  in mtk_gpio_set_config()
549 	    pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE ||  in mtk_gpio_set_config()
550 	    desc->eint.eint_n == (u16)EINT_NA)  in mtk_gpio_set_config()
551 		return -ENOTSUPP;  in mtk_gpio_set_config()
553 	debounce = pinconf_to_config_argument(config);  in mtk_gpio_set_config()
555 	return mtk_eint_set_debounce(hw->eint, desc->eint.eint_n, debounce);  in mtk_gpio_set_config()
560 	struct gpio_chip *chip = &hw->chip;  in mtk_build_gpiochip()
563 	chip->label		= PINCTRL_PINCTRL_DEV;  in mtk_build_gpiochip()
564 	chip->parent		= hw->dev;  in mtk_build_gpiochip()
565 	chip->request		= gpiochip_generic_request;  in mtk_build_gpiochip()
566 	chip->free		= gpiochip_generic_free;  in mtk_build_gpiochip()
567 	chip->direction_input	= pinctrl_gpio_direction_input;  in mtk_build_gpiochip()
568 	chip->direction_output	= mtk_gpio_direction_output;  in mtk_build_gpiochip()
569 	chip->get		= mtk_gpio_get;  in mtk_build_gpiochip()
570 	chip->set		= mtk_gpio_set;  in mtk_build_gpiochip()
571 	chip->to_irq		= mtk_gpio_to_irq;  in mtk_build_gpiochip()
572 	chip->set_config	= mtk_gpio_set_config;  in mtk_build_gpiochip()
573 	chip->base		= -1;  in mtk_build_gpiochip()
574 	chip->ngpio		= hw->soc->npins;  in mtk_build_gpiochip()
581 	 * "gpio-ranges" property. Otherwise, called directly from a  in mtk_build_gpiochip()
582 	 * DeviceTree-supported pinctrl driver is DEPRECATED.  in mtk_build_gpiochip()
585 	 * bind pinctrl and gpio drivers via the "gpio-ranges" property.  in mtk_build_gpiochip()
587 	if (!of_property_present(hw->dev->of_node, "gpio-ranges")) {  in mtk_build_gpiochip()
588 		ret = gpiochip_add_pin_range(chip, dev_name(hw->dev), 0, 0,  in mtk_build_gpiochip()
589 					     chip->ngpio);  in mtk_build_gpiochip()
603 	for (i = 0; i < hw->soc->ngrps; i++) {  in mtk_build_groups()
604 		const struct group_desc *group = hw->soc->grps + i;  in mtk_build_groups()
605 		const struct pingroup *grp = &group->grp;  in mtk_build_groups()
607 		err = pinctrl_generic_add_group(hw->pctrl, grp->name, grp->pins, grp->npins,  in mtk_build_groups()
608 						group->data);  in mtk_build_groups()
610 			dev_err(hw->dev, "Failed to register group %s\n", grp->name);  in mtk_build_groups()
622 	for (i = 0; i < hw->soc->nfuncs ; i++) {  in mtk_build_functions()
623 		const struct function_desc *function = hw->soc->funcs + i;  in mtk_build_functions()
624 		const struct pinfunction *func = &function->func;  in mtk_build_functions()
626 		err = pinmux_generic_add_function(hw->pctrl, func->name,  in mtk_build_functions()
627 						  func->groups, func->ngroups,  in mtk_build_functions()
628 						  function->data);  in mtk_build_functions()
630 			dev_err(hw->dev, "Failed to register function %s\n",  in mtk_build_functions()
631 				func->name);  in mtk_build_functions()
642 	struct device *dev = &pdev->dev;  in mtk_moore_pinctrl_probe()
647 	hw = devm_kzalloc(&pdev->dev, sizeof(*hw), GFP_KERNEL);  in mtk_moore_pinctrl_probe()
649 		return -ENOMEM;  in mtk_moore_pinctrl_probe()
651 	hw->soc = soc;  in mtk_moore_pinctrl_probe()
652 	hw->dev = &pdev->dev;  in mtk_moore_pinctrl_probe()
654 	if (!hw->soc->nbase_names)  in mtk_moore_pinctrl_probe()
655 		return dev_err_probe(dev, -EINVAL,  in mtk_moore_pinctrl_probe()
658 	hw->base = devm_kmalloc_array(&pdev->dev, hw->soc->nbase_names,  in mtk_moore_pinctrl_probe()
659 				      sizeof(*hw->base), GFP_KERNEL);  in mtk_moore_pinctrl_probe()
660 	if (!hw->base)  in mtk_moore_pinctrl_probe()
661 		return -ENOMEM;  in mtk_moore_pinctrl_probe()
663 	for (i = 0; i < hw->soc->nbase_names; i++) {  in mtk_moore_pinctrl_probe()
664 		hw->base[i] = devm_platform_ioremap_resource_byname(pdev,  in mtk_moore_pinctrl_probe()
665 						hw->soc->base_names[i]);  in mtk_moore_pinctrl_probe()
666 		if (IS_ERR(hw->base[i]))  in mtk_moore_pinctrl_probe()
667 			return PTR_ERR(hw->base[i]);  in mtk_moore_pinctrl_probe()
670 	hw->nbase = hw->soc->nbase_names;  in mtk_moore_pinctrl_probe()
672 	spin_lock_init(&hw->lock);  in mtk_moore_pinctrl_probe()
675 	pins = devm_kmalloc_array(&pdev->dev, hw->soc->npins, sizeof(*pins),  in mtk_moore_pinctrl_probe()
678 		return -ENOMEM;  in mtk_moore_pinctrl_probe()
680 	for (i = 0; i < hw->soc->npins; i++) {  in mtk_moore_pinctrl_probe()
681 		pins[i].number = hw->soc->pins[i].number;  in mtk_moore_pinctrl_probe()
682 		pins[i].name = hw->soc->pins[i].name;  in mtk_moore_pinctrl_probe()
687 	mtk_desc.npins = hw->soc->npins;  in mtk_moore_pinctrl_probe()
694 	err = devm_pinctrl_register_and_init(&pdev->dev, &mtk_desc, hw,  in mtk_moore_pinctrl_probe()
695 					     &hw->pctrl);  in mtk_moore_pinctrl_probe()
712 	err = pinctrl_enable(hw->pctrl);  in mtk_moore_pinctrl_probe()
718 		dev_warn(&pdev->dev,  in mtk_moore_pinctrl_probe()