32 static int sh_pfc_map_resources(struct sh_pfc *pfc,  in sh_pfc_map_resources()  argument
60 	windows = devm_kcalloc(pfc->dev, num_windows, sizeof(*windows),  in sh_pfc_map_resources()
65 	pfc->num_windows = num_windows;  in sh_pfc_map_resources()
66 	pfc->windows = windows;  in sh_pfc_map_resources()
69 		irqs = devm_kcalloc(pfc->dev, num_irqs, sizeof(*irqs),  in sh_pfc_map_resources()
74 		pfc->num_irqs = num_irqs;  in sh_pfc_map_resources()
75 		pfc->irqs = irqs;  in sh_pfc_map_resources()
83 		windows->virt = devm_ioremap_resource(pfc->dev, res);  in sh_pfc_map_resources()
94 static void __iomem *sh_pfc_phys_to_virt(struct sh_pfc *pfc, u32 reg)  in sh_pfc_phys_to_virt()  argument
101 	for (i = 0; i < pfc->num_windows; i++) {  in sh_pfc_phys_to_virt()
102 		window = pfc->windows + i;  in sh_pfc_phys_to_virt()
117 int sh_pfc_get_pin_index(struct sh_pfc *pfc, unsigned int pin)  in sh_pfc_get_pin_index()  argument
122 	for (i = 0, offset = 0; i < pfc->nr_ranges; ++i) {  in sh_pfc_get_pin_index()
123 		const struct sh_pfc_pin_range *range = &pfc->ranges[i];  in sh_pfc_get_pin_index()
179 u32 sh_pfc_read(struct sh_pfc *pfc, u32 reg)  in sh_pfc_read()  argument
181 	return sh_pfc_read_raw_reg(sh_pfc_phys_to_virt(pfc, reg), 32);  in sh_pfc_read()
184 void sh_pfc_write(struct sh_pfc *pfc, u32 reg, u32 data)  in sh_pfc_write()  argument
186 	if (pfc->info->unlock_reg)  in sh_pfc_write()
188 			sh_pfc_phys_to_virt(pfc, pfc->info->unlock_reg), 32,  in sh_pfc_write()
191 	sh_pfc_write_raw_reg(sh_pfc_phys_to_virt(pfc, reg), 32, data);  in sh_pfc_write()
194 static void sh_pfc_config_reg_helper(struct sh_pfc *pfc,  in sh_pfc_config_reg_helper()  argument
202 	*mapped_regp = sh_pfc_phys_to_virt(pfc, crp->reg);  in sh_pfc_config_reg_helper()
215 static void sh_pfc_write_config_reg(struct sh_pfc *pfc,  in sh_pfc_write_config_reg()  argument
223 	sh_pfc_config_reg_helper(pfc, crp, field, &mapped_reg, &mask, &pos);  in sh_pfc_write_config_reg()
225 	dev_dbg(pfc->dev, "write_reg addr = %x, value = 0x%x, field = %u, "  in sh_pfc_write_config_reg()
236 	if (pfc->info->unlock_reg)  in sh_pfc_write_config_reg()
238 			sh_pfc_phys_to_virt(pfc, pfc->info->unlock_reg), 32,  in sh_pfc_write_config_reg()
244 static int sh_pfc_get_config_reg(struct sh_pfc *pfc, u16 enum_id,  in sh_pfc_get_config_reg()  argument
252 			pfc->info->cfg_regs + k;  in sh_pfc_get_config_reg()
290 static int sh_pfc_mark_to_enum(struct sh_pfc *pfc, u16 mark, int pos,  in sh_pfc_mark_to_enum()  argument
293 	const u16 *data = pfc->info->pinmux_data;  in sh_pfc_mark_to_enum()
301 	for (k = 0; k < pfc->info->pinmux_data_size; k++) {  in sh_pfc_mark_to_enum()
308 	dev_err(pfc->dev, "cannot locate data/mark enum_id for mark %d\n",  in sh_pfc_mark_to_enum()
313 int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type)  in sh_pfc_config_mux()  argument
325 		range = &pfc->info->output;  in sh_pfc_config_mux()
329 		range = &pfc->info->input;  in sh_pfc_config_mux()
345 		pos = sh_pfc_mark_to_enum(pfc, mark, pos, &enum_id);  in sh_pfc_config_mux()
356 		in_range = sh_pfc_enum_in_range(enum_id, &pfc->info->function);  in sh_pfc_config_mux()
383 		ret = sh_pfc_get_config_reg(pfc, enum_id, &cr, &field, &value);  in sh_pfc_config_mux()
387 		sh_pfc_write_config_reg(pfc, cr, field, value);  in sh_pfc_config_mux()
394 sh_pfc_pin_to_bias_reg(const struct sh_pfc *pfc, unsigned int pin,  in sh_pfc_pin_to_bias_reg()  argument
399 	for (i = 0; pfc->info->bias_regs[i].puen; i++) {  in sh_pfc_pin_to_bias_reg()
400 		for (j = 0; j < ARRAY_SIZE(pfc->info->bias_regs[i].pins); j++) {  in sh_pfc_pin_to_bias_reg()
401 			if (pfc->info->bias_regs[i].pins[j] == pin) {  in sh_pfc_pin_to_bias_reg()
403 				return &pfc->info->bias_regs[i];  in sh_pfc_pin_to_bias_reg()
413 static int sh_pfc_init_ranges(struct sh_pfc *pfc)  in sh_pfc_init_ranges()  argument
419 	if (pfc->info->pins[0].pin == (u16)-1) {  in sh_pfc_init_ranges()
424 		pfc->nr_ranges = 1;  in sh_pfc_init_ranges()
425 		pfc->ranges = devm_kzalloc(pfc->dev, sizeof(*pfc->ranges),  in sh_pfc_init_ranges()
427 		if (pfc->ranges == NULL)  in sh_pfc_init_ranges()
430 		pfc->ranges->start = 0;  in sh_pfc_init_ranges()
431 		pfc->ranges->end = pfc->info->nr_pins - 1;  in sh_pfc_init_ranges()
432 		pfc->nr_gpio_pins = pfc->info->nr_pins;  in sh_pfc_init_ranges()
441 	for (i = 1, nr_ranges = 1; i < pfc->info->nr_pins; ++i) {  in sh_pfc_init_ranges()
442 		if (pfc->info->pins[i-1].pin != pfc->info->pins[i].pin - 1)  in sh_pfc_init_ranges()
446 	pfc->nr_ranges = nr_ranges;  in sh_pfc_init_ranges()
447 	pfc->ranges = devm_kcalloc(pfc->dev, nr_ranges, sizeof(*pfc->ranges),  in sh_pfc_init_ranges()
449 	if (pfc->ranges == NULL)  in sh_pfc_init_ranges()
452 	range = pfc->ranges;  in sh_pfc_init_ranges()
453 	range->start = pfc->info->pins[0].pin;  in sh_pfc_init_ranges()
455 	for (i = 1; i < pfc->info->nr_pins; ++i) {  in sh_pfc_init_ranges()
456 		if (pfc->info->pins[i-1].pin == pfc->info->pins[i].pin - 1)  in sh_pfc_init_ranges()
459 		range->end = pfc->info->pins[i-1].pin;  in sh_pfc_init_ranges()
460 		if (!(pfc->info->pins[i-1].configs & SH_PFC_PIN_CFG_NO_GPIO))  in sh_pfc_init_ranges()
461 			pfc->nr_gpio_pins = range->end + 1;  in sh_pfc_init_ranges()
464 		range->start = pfc->info->pins[i].pin;  in sh_pfc_init_ranges()
467 	range->end = pfc->info->pins[i-1].pin;  in sh_pfc_init_ranges()
468 	if (!(pfc->info->pins[i-1].configs & SH_PFC_PIN_CFG_NO_GPIO))  in sh_pfc_init_ranges()
469 		pfc->nr_gpio_pins = range->end + 1;  in sh_pfc_init_ranges()
607 static void sh_pfc_nop_reg(struct sh_pfc *pfc, u32 reg, unsigned int idx)  in sh_pfc_nop_reg()  argument
611 static void sh_pfc_save_reg(struct sh_pfc *pfc, u32 reg, unsigned int idx)  in sh_pfc_save_reg()  argument
613 	pfc->saved_regs[idx] = sh_pfc_read(pfc, reg);  in sh_pfc_save_reg()
616 static void sh_pfc_restore_reg(struct sh_pfc *pfc, u32 reg, unsigned int idx)  in sh_pfc_restore_reg()  argument
618 	sh_pfc_write(pfc, reg, pfc->saved_regs[idx]);  in sh_pfc_restore_reg()
621 static unsigned int sh_pfc_walk_regs(struct sh_pfc *pfc,  in sh_pfc_walk_regs()  argument
622 	void (*do_reg)(struct sh_pfc *pfc, u32 reg, unsigned int idx))  in sh_pfc_walk_regs()  argument
626 	if (pfc->info->cfg_regs)  in sh_pfc_walk_regs()
627 		for (i = 0; pfc->info->cfg_regs[i].reg; i++)  in sh_pfc_walk_regs()
628 			do_reg(pfc, pfc->info->cfg_regs[i].reg, n++);  in sh_pfc_walk_regs()
630 	if (pfc->info->drive_regs)  in sh_pfc_walk_regs()
631 		for (i = 0; pfc->info->drive_regs[i].reg; i++)  in sh_pfc_walk_regs()
632 			do_reg(pfc, pfc->info->drive_regs[i].reg, n++);  in sh_pfc_walk_regs()
634 	if (pfc->info->bias_regs)  in sh_pfc_walk_regs()
635 		for (i = 0; pfc->info->bias_regs[i].puen; i++) {  in sh_pfc_walk_regs()
636 			do_reg(pfc, pfc->info->bias_regs[i].puen, n++);  in sh_pfc_walk_regs()
637 			if (pfc->info->bias_regs[i].pud)  in sh_pfc_walk_regs()
638 				do_reg(pfc, pfc->info->bias_regs[i].pud, n++);  in sh_pfc_walk_regs()
641 	if (pfc->info->ioctrl_regs)  in sh_pfc_walk_regs()
642 		for (i = 0; pfc->info->ioctrl_regs[i].reg; i++)  in sh_pfc_walk_regs()
643 			do_reg(pfc, pfc->info->ioctrl_regs[i].reg, n++);  in sh_pfc_walk_regs()
648 static int sh_pfc_suspend_init(struct sh_pfc *pfc)  in sh_pfc_suspend_init()  argument
656 	n = sh_pfc_walk_regs(pfc, sh_pfc_nop_reg);  in sh_pfc_suspend_init()
660 	pfc->saved_regs = devm_kmalloc_array(pfc->dev, n,  in sh_pfc_suspend_init()
661 					     sizeof(*pfc->saved_regs),  in sh_pfc_suspend_init()
663 	if (!pfc->saved_regs)  in sh_pfc_suspend_init()
666 	dev_dbg(pfc->dev, "Allocated space to save %u regs\n", n);  in sh_pfc_suspend_init()
672 	struct sh_pfc *pfc = dev_get_drvdata(dev);  in sh_pfc_suspend_noirq()  local
674 	if (pfc->saved_regs)  in sh_pfc_suspend_noirq()
675 		sh_pfc_walk_regs(pfc, sh_pfc_save_reg);  in sh_pfc_suspend_noirq()
681 	struct sh_pfc *pfc = dev_get_drvdata(dev);  in sh_pfc_resume_noirq()  local
683 	if (pfc->saved_regs)  in sh_pfc_resume_noirq()
684 		sh_pfc_walk_regs(pfc, sh_pfc_restore_reg);  in sh_pfc_resume_noirq()
693 static int sh_pfc_suspend_init(struct sh_pfc *pfc) { return 0; }  in sh_pfc_suspend_init()  argument
703 	struct sh_pfc *pfc;  in sh_pfc_probe()  local
713 	pfc = devm_kzalloc(&pdev->dev, sizeof(*pfc), GFP_KERNEL);  in sh_pfc_probe()
714 	if (pfc == NULL)  in sh_pfc_probe()
717 	pfc->info = info;  in sh_pfc_probe()
718 	pfc->dev = &pdev->dev;  in sh_pfc_probe()
720 	ret = sh_pfc_map_resources(pfc, pdev);  in sh_pfc_probe()
724 	spin_lock_init(&pfc->lock);  in sh_pfc_probe()
727 		ret = info->ops->init(pfc);  in sh_pfc_probe()
732 		info = pfc->info;  in sh_pfc_probe()
735 	ret = sh_pfc_suspend_init(pfc);  in sh_pfc_probe()
743 	ret = sh_pfc_init_ranges(pfc);  in sh_pfc_probe()
750 	ret = sh_pfc_register_pinctrl(pfc);  in sh_pfc_probe()
758 	ret = sh_pfc_register_gpiochip(pfc);  in sh_pfc_probe()
765 		dev_notice(pfc->dev, "failed to init GPIO chip, ignoring...\n");  in sh_pfc_probe()
769 	platform_set_drvdata(pdev, pfc);  in sh_pfc_probe()
771 	dev_info(pfc->dev, "%s support registered\n", info->name);  in sh_pfc_probe()