1 // SPDX-License-Identifier: GPL-2.0-only
26 #include <linux/pinctrl/pinconf-generic.h>
32 #include "pinctrl-intel.h"
33 #include "pinctrl-tangier.h"
66 #define pin_to_bufno(f, p)		((p) - (f)->pin_base)
74 	for (i = 0; i < tp->nfamilies; i++) {  in tng_get_family()
75 		family = &tp->families[i];  in tng_get_family()
76 		if (pin >= family->pin_base &&  in tng_get_family()
77 		    pin < family->pin_base + family->npins)  in tng_get_family()
81 	dev_warn(tp->dev, "failed to find family for pin %u\n", pin);  in tng_get_family()
93 	return !family->protected;  in tng_buf_available()
106 	return family->regs + BUFCFG_OFFSET + bufno * 4;  in tng_get_bufcfg()
114 		return -EBUSY;  in tng_read_bufcfg()
139 	return tp->ngroups;  in tng_get_groups_count()
147 	return tp->groups[group].grp.name;  in tng_get_group_name()
155 	*pins = tp->groups[group].grp.pins;  in tng_get_group_pins()
156 	*npins = tp->groups[group].grp.npins;  in tng_get_group_pins()
193 	return tp->nfunctions;  in tng_get_functions_count()
201 	return tp->functions[function].func.name;  in tng_get_function_name()
211 	*groups = tp->functions[function].func.groups;  in tng_get_function_groups()
212 	*ngroups = tp->functions[function].func.ngroups;  in tng_get_function_groups()
221 	const struct intel_pingroup *grp = &tp->groups[group];  in tng_pinmux_set_mux()
222 	u32 bits = grp->mode << BUFCFG_PINMODE_SHIFT;  in tng_pinmux_set_mux()
230 	for (i = 0; i < grp->grp.npins; i++) {  in tng_pinmux_set_mux()
231 		if (!tng_buf_available(tp, grp->grp.pins[i]))  in tng_pinmux_set_mux()
232 			return -EBUSY;  in tng_pinmux_set_mux()
235 	guard(raw_spinlock_irqsave)(&tp->lock);  in tng_pinmux_set_mux()
238 	for (i = 0; i < grp->grp.npins; i++)  in tng_pinmux_set_mux()
239 		tng_update_bufcfg(tp, grp->grp.pins[i], bits, mask);  in tng_pinmux_set_mux()
253 		return -EBUSY;  in tng_gpio_request_enable()
255 	guard(raw_spinlock_irqsave)(&tp->lock);  in tng_gpio_request_enable()
271 			  unsigned long *config)  in tng_config_get()
275 	u32 value, term;  in tng_config_get()  local
281 		return -ENOTSUPP;  in tng_config_get()
283 	term = (value & BUFCFG_PUPD_VAL_MASK) >> BUFCFG_PUPD_VAL_SHIFT;  in tng_config_get()
288 			return -EINVAL;  in tng_config_get()
293 			return -EINVAL;  in tng_config_get()
295 		switch (term) {  in tng_config_get()
314 			return -EINVAL;  in tng_config_get()
316 		switch (term) {  in tng_config_get()
335 			return -EINVAL;  in tng_config_get()
340 			return -EINVAL;  in tng_config_get()
349 		return -ENOTSUPP;  in tng_config_get()
357 			      unsigned long config)  in tng_config_set_pin()
361 	u32 mask, term, value = 0;  in tng_config_set_pin()  local
371 			term = BUFCFG_PUPD_VAL_50K;  in tng_config_set_pin()
375 			term = BUFCFG_PUPD_VAL_20K;  in tng_config_set_pin()
378 			term = BUFCFG_PUPD_VAL_2K;  in tng_config_set_pin()
381 			term = BUFCFG_PUPD_VAL_910;  in tng_config_set_pin()
384 			return -EINVAL;  in tng_config_set_pin()
388 		value = BUFCFG_PU_EN | (term << BUFCFG_PUPD_VAL_SHIFT);  in tng_config_set_pin()
394 			term = BUFCFG_PUPD_VAL_50K;  in tng_config_set_pin()
398 			term = BUFCFG_PUPD_VAL_20K;  in tng_config_set_pin()
401 			term = BUFCFG_PUPD_VAL_2K;  in tng_config_set_pin()
404 			term = BUFCFG_PUPD_VAL_910;  in tng_config_set_pin()
407 			return -EINVAL;  in tng_config_set_pin()
411 		value = BUFCFG_PD_EN | (term << BUFCFG_PUPD_VAL_SHIFT);  in tng_config_set_pin()
430 		return -EINVAL;  in tng_config_set_pin()
433 	guard(raw_spinlock_irqsave)(&tp->lock);  in tng_config_set_pin()
441 			  unsigned long *configs, unsigned int nconfigs)  in tng_config_set()
448 		return -ENOTSUPP;  in tng_config_set()
464 			return -ENOTSUPP;  in tng_config_set()
472 				unsigned int group, unsigned long *config)  in tng_config_group_get()
486 				unsigned int group, unsigned long *configs,  in tng_config_group_set()
524 	struct device *dev = &pdev->dev;  in tng_pinctrl_probe()
533 		return -ENOMEM;  in tng_pinctrl_probe()
535 	tp->dev = dev;  in tng_pinctrl_probe()
536 	raw_spin_lock_init(&tp->lock);  in tng_pinctrl_probe()
546 	families_len = size_mul(sizeof(*families), tp->nfamilies);  in tng_pinctrl_probe()
547 	families = devm_kmemdup(dev, tp->families, families_len, GFP_KERNEL);  in tng_pinctrl_probe()
549 		return -ENOMEM;  in tng_pinctrl_probe()
552 	for (i = 0; i < tp->nfamilies; i++) {  in tng_pinctrl_probe()
555 		family->regs = regs + family->barno * TNG_FAMILY_LEN;  in tng_pinctrl_probe()
558 	tp->families = families;  in tng_pinctrl_probe()
559 	tp->pctldesc = tng_pinctrl_desc;  in tng_pinctrl_probe()
560 	tp->pctldesc.name = dev_name(dev);  in tng_pinctrl_probe()
561 	tp->pctldesc.pins = tp->pins;  in tng_pinctrl_probe()
562 	tp->pctldesc.npins = tp->npins;  in tng_pinctrl_probe()
564 	tp->pctldev = devm_pinctrl_register(dev, &tp->pctldesc, tp);  in tng_pinctrl_probe()
565 	if (IS_ERR(tp->pctldev))  in tng_pinctrl_probe()
566 		return dev_err_probe(dev, PTR_ERR(tp->pctldev),  in tng_pinctrl_probe()
576 	data = device_get_match_data(&pdev->dev);  in devm_tng_pinctrl_probe()
578 		return -ENODATA;  in devm_tng_pinctrl_probe()