30 static int sh_pfc_map_resources(struct sh_pfc *pfc,  in sh_pfc_map_resources()  argument
54 	windows = devm_kcalloc(pfc->dev, num_windows, sizeof(*windows),  in sh_pfc_map_resources()
59 	pfc->num_windows = num_windows;  in sh_pfc_map_resources()
60 	pfc->windows = windows;  in sh_pfc_map_resources()
63 		irqs = devm_kcalloc(pfc->dev, num_irqs, sizeof(*irqs),  in sh_pfc_map_resources()
68 		pfc->num_irqs = num_irqs;  in sh_pfc_map_resources()
69 		pfc->irqs = irqs;  in sh_pfc_map_resources()
87 static void __iomem *sh_pfc_phys_to_virt(struct sh_pfc *pfc, u32 reg)  in sh_pfc_phys_to_virt()  argument
94 	for (i = 0; i < pfc->num_windows; i++) {  in sh_pfc_phys_to_virt()
95 		window = pfc->windows + i;  in sh_pfc_phys_to_virt()
110 int sh_pfc_get_pin_index(struct sh_pfc *pfc, unsigned int pin)  in sh_pfc_get_pin_index()  argument
115 	for (i = 0, offset = 0; i < pfc->nr_ranges; ++i) {  in sh_pfc_get_pin_index()
116 		const struct sh_pfc_pin_range *range = &pfc->ranges[i];  in sh_pfc_get_pin_index()
172 u32 sh_pfc_read(struct sh_pfc *pfc, u32 reg)  in sh_pfc_read()  argument
174 	return sh_pfc_read_raw_reg(sh_pfc_phys_to_virt(pfc, reg), 32);  in sh_pfc_read()
177 static void sh_pfc_unlock_reg(struct sh_pfc *pfc, u32 reg, u32 data)  in sh_pfc_unlock_reg()  argument
181 	if (!pfc->info->unlock_reg)  in sh_pfc_unlock_reg()
184 	if (pfc->info->unlock_reg >= 0x80000000UL)  in sh_pfc_unlock_reg()
185 		unlock = pfc->info->unlock_reg;  in sh_pfc_unlock_reg()
188 		unlock = reg & ~pfc->info->unlock_reg;  in sh_pfc_unlock_reg()
190 	sh_pfc_write_raw_reg(sh_pfc_phys_to_virt(pfc, unlock), 32, ~data);  in sh_pfc_unlock_reg()
193 void sh_pfc_write(struct sh_pfc *pfc, u32 reg, u32 data)  in sh_pfc_write()  argument
195 	sh_pfc_unlock_reg(pfc, reg, data);  in sh_pfc_write()
196 	sh_pfc_write_raw_reg(sh_pfc_phys_to_virt(pfc, reg), 32, data);  in sh_pfc_write()
199 static void sh_pfc_config_reg_helper(struct sh_pfc *pfc,  in sh_pfc_config_reg_helper()  argument
207 	*mapped_regp = sh_pfc_phys_to_virt(pfc, crp->reg);  in sh_pfc_config_reg_helper()
220 static void sh_pfc_write_config_reg(struct sh_pfc *pfc,  in sh_pfc_write_config_reg()  argument
228 	sh_pfc_config_reg_helper(pfc, crp, field, &mapped_reg, &mask, &pos);  in sh_pfc_write_config_reg()
230 	dev_dbg(pfc->dev, "write_reg addr = %x, value = 0x%x, field = %u, "  in sh_pfc_write_config_reg()
241 	sh_pfc_unlock_reg(pfc, crp->reg, data);  in sh_pfc_write_config_reg()
245 static int sh_pfc_get_config_reg(struct sh_pfc *pfc, u16 enum_id,  in sh_pfc_get_config_reg()  argument
253 			pfc->info->cfg_regs + k;  in sh_pfc_get_config_reg()
293 static int sh_pfc_mark_to_enum(struct sh_pfc *pfc, u16 mark, int pos,  in sh_pfc_mark_to_enum()  argument
296 	const u16 *data = pfc->info->pinmux_data;  in sh_pfc_mark_to_enum()
304 	for (k = 0; k < pfc->info->pinmux_data_size; k++) {  in sh_pfc_mark_to_enum()
311 	dev_err(pfc->dev, "cannot locate data/mark enum_id for mark %d\n",  in sh_pfc_mark_to_enum()
316 int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type)  in sh_pfc_config_mux()  argument
329 		range = &pfc->info->output;  in sh_pfc_config_mux()
333 		range = &pfc->info->input;  in sh_pfc_config_mux()
350 		pos = sh_pfc_mark_to_enum(pfc, mark, pos, &enum_id);  in sh_pfc_config_mux()
361 		in_range = sh_pfc_enum_in_range(enum_id, &pfc->info->function);  in sh_pfc_config_mux()
388 		ret = sh_pfc_get_config_reg(pfc, enum_id, &cr, &field, &value);  in sh_pfc_config_mux()
392 		sh_pfc_write_config_reg(pfc, cr, field, value);  in sh_pfc_config_mux()
398 static int sh_pfc_init_ranges(struct sh_pfc *pfc)  in sh_pfc_init_ranges()  argument
404 	if (pfc->info->pins[0].pin == (u16)-1) {  in sh_pfc_init_ranges()
409 		pfc->nr_ranges = 1;  in sh_pfc_init_ranges()
410 		pfc->ranges = devm_kzalloc(pfc->dev, sizeof(*pfc->ranges),  in sh_pfc_init_ranges()
412 		if (pfc->ranges == NULL)  in sh_pfc_init_ranges()
415 		pfc->ranges->start = 0;  in sh_pfc_init_ranges()
416 		pfc->ranges->end = pfc->info->nr_pins - 1;  in sh_pfc_init_ranges()
417 		pfc->nr_gpio_pins = pfc->info->nr_pins;  in sh_pfc_init_ranges()
426 	for (i = 1, nr_ranges = 1; i < pfc->info->nr_pins; ++i) {  in sh_pfc_init_ranges()
427 		if (pfc->info->pins[i-1].pin != pfc->info->pins[i].pin - 1)  in sh_pfc_init_ranges()
431 	pfc->nr_ranges = nr_ranges;  in sh_pfc_init_ranges()
432 	pfc->ranges = devm_kcalloc(pfc->dev, nr_ranges, sizeof(*pfc->ranges),  in sh_pfc_init_ranges()
434 	if (pfc->ranges == NULL)  in sh_pfc_init_ranges()
437 	range = pfc->ranges;  in sh_pfc_init_ranges()
438 	range->start = pfc->info->pins[0].pin;  in sh_pfc_init_ranges()
440 	for (i = 1; i < pfc->info->nr_pins; ++i) {  in sh_pfc_init_ranges()
441 		if (pfc->info->pins[i-1].pin == pfc->info->pins[i].pin - 1)  in sh_pfc_init_ranges()
444 		range->end = pfc->info->pins[i-1].pin;  in sh_pfc_init_ranges()
445 		if (!(pfc->info->pins[i-1].configs & SH_PFC_PIN_CFG_NO_GPIO))  in sh_pfc_init_ranges()
446 			pfc->nr_gpio_pins = range->end + 1;  in sh_pfc_init_ranges()
449 		range->start = pfc->info->pins[i].pin;  in sh_pfc_init_ranges()
452 	range->end = pfc->info->pins[i-1].pin;  in sh_pfc_init_ranges()
453 	if (!(pfc->info->pins[i-1].configs & SH_PFC_PIN_CFG_NO_GPIO))  in sh_pfc_init_ranges()
454 		pfc->nr_gpio_pins = range->end + 1;  in sh_pfc_init_ranges()
652 static void sh_pfc_nop_reg(struct sh_pfc *pfc, u32 reg, unsigned int idx)  in sh_pfc_nop_reg()  argument
656 static void sh_pfc_save_reg(struct sh_pfc *pfc, u32 reg, unsigned int idx)  in sh_pfc_save_reg()  argument
658 	pfc->saved_regs[idx] = sh_pfc_read(pfc, reg);  in sh_pfc_save_reg()
661 static void sh_pfc_restore_reg(struct sh_pfc *pfc, u32 reg, unsigned int idx)  in sh_pfc_restore_reg()  argument
663 	sh_pfc_write(pfc, reg, pfc->saved_regs[idx]);  in sh_pfc_restore_reg()
666 static unsigned int sh_pfc_walk_regs(struct sh_pfc *pfc,  in sh_pfc_walk_regs()  argument
667 	void (*do_reg)(struct sh_pfc *pfc, u32 reg, unsigned int idx))  in sh_pfc_walk_regs()  argument
671 	if (pfc->info->cfg_regs)  in sh_pfc_walk_regs()
672 		for (i = 0; pfc->info->cfg_regs[i].reg; i++)  in sh_pfc_walk_regs()
673 			do_reg(pfc, pfc->info->cfg_regs[i].reg, n++);  in sh_pfc_walk_regs()
675 	if (pfc->info->drive_regs)  in sh_pfc_walk_regs()
676 		for (i = 0; pfc->info->drive_regs[i].reg; i++)  in sh_pfc_walk_regs()
677 			do_reg(pfc, pfc->info->drive_regs[i].reg, n++);  in sh_pfc_walk_regs()
679 	if (pfc->info->bias_regs)  in sh_pfc_walk_regs()
680 		for (i = 0; pfc->info->bias_regs[i].puen ||  in sh_pfc_walk_regs()
681 			    pfc->info->bias_regs[i].pud; i++) {  in sh_pfc_walk_regs()
682 			if (pfc->info->bias_regs[i].puen)  in sh_pfc_walk_regs()
683 				do_reg(pfc, pfc->info->bias_regs[i].puen, n++);  in sh_pfc_walk_regs()
684 			if (pfc->info->bias_regs[i].pud)  in sh_pfc_walk_regs()
685 				do_reg(pfc, pfc->info->bias_regs[i].pud, n++);  in sh_pfc_walk_regs()
688 	if (pfc->info->ioctrl_regs)  in sh_pfc_walk_regs()
689 		for (i = 0; pfc->info->ioctrl_regs[i].reg; i++)  in sh_pfc_walk_regs()
690 			do_reg(pfc, pfc->info->ioctrl_regs[i].reg, n++);  in sh_pfc_walk_regs()
695 static int sh_pfc_suspend_init(struct sh_pfc *pfc)  in sh_pfc_suspend_init()  argument
703 	n = sh_pfc_walk_regs(pfc, sh_pfc_nop_reg);  in sh_pfc_suspend_init()
707 	pfc->saved_regs = devm_kmalloc_array(pfc->dev, n,  in sh_pfc_suspend_init()
708 					     sizeof(*pfc->saved_regs),  in sh_pfc_suspend_init()
710 	if (!pfc->saved_regs)  in sh_pfc_suspend_init()
713 	dev_dbg(pfc->dev, "Allocated space to save %u regs\n", n);  in sh_pfc_suspend_init()
719 	struct sh_pfc *pfc = dev_get_drvdata(dev);  in sh_pfc_suspend_noirq()  local
721 	if (pfc->saved_regs)  in sh_pfc_suspend_noirq()
722 		sh_pfc_walk_regs(pfc, sh_pfc_save_reg);  in sh_pfc_suspend_noirq()
728 	struct sh_pfc *pfc = dev_get_drvdata(dev);  in sh_pfc_resume_noirq()  local
730 	if (pfc->saved_regs)  in sh_pfc_resume_noirq()
731 		sh_pfc_walk_regs(pfc, sh_pfc_restore_reg);  in sh_pfc_resume_noirq()
736 static int sh_pfc_suspend_init(struct sh_pfc *pfc) { return 0; }  in sh_pfc_suspend_init()  argument
1305 	struct sh_pfc *pfc;  in sh_pfc_probe()  local
1313 	pfc = devm_kzalloc(&pdev->dev, sizeof(*pfc), GFP_KERNEL);  in sh_pfc_probe()
1314 	if (pfc == NULL)  in sh_pfc_probe()
1317 	pfc->info = info;  in sh_pfc_probe()
1318 	pfc->dev = &pdev->dev;  in sh_pfc_probe()
1320 	ret = sh_pfc_map_resources(pfc, pdev);  in sh_pfc_probe()
1324 	spin_lock_init(&pfc->lock);  in sh_pfc_probe()
1327 		ret = info->ops->init(pfc);  in sh_pfc_probe()
1332 		info = pfc->info;  in sh_pfc_probe()
1335 	ret = sh_pfc_suspend_init(pfc);  in sh_pfc_probe()
1343 	ret = sh_pfc_init_ranges(pfc);  in sh_pfc_probe()
1350 	ret = sh_pfc_register_pinctrl(pfc);  in sh_pfc_probe()
1358 	ret = sh_pfc_register_gpiochip(pfc);  in sh_pfc_probe()
1365 		dev_notice(pfc->dev, "failed to init GPIO chip, ignoring...\n");  in sh_pfc_probe()
1369 	platform_set_drvdata(pdev, pfc);  in sh_pfc_probe()
1371 	dev_info(pfc->dev, "%s support registered\n", info->name);  in sh_pfc_probe()