Lines Matching refs:pc
245 static inline u32 bcm2835_gpio_rd(struct bcm2835_pinctrl *pc, unsigned reg) in bcm2835_gpio_rd() argument
247 return readl(pc->base + reg); in bcm2835_gpio_rd()
250 static inline void bcm2835_gpio_wr(struct bcm2835_pinctrl *pc, unsigned reg, in bcm2835_gpio_wr() argument
253 writel(val, pc->base + reg); in bcm2835_gpio_wr()
256 static inline int bcm2835_gpio_get_bit(struct bcm2835_pinctrl *pc, unsigned reg, in bcm2835_gpio_get_bit() argument
260 return (bcm2835_gpio_rd(pc, reg) >> GPIO_REG_SHIFT(bit)) & 1; in bcm2835_gpio_get_bit()
264 static inline void bcm2835_gpio_set_bit(struct bcm2835_pinctrl *pc, in bcm2835_gpio_set_bit() argument
268 bcm2835_gpio_wr(pc, reg, BIT(GPIO_REG_SHIFT(bit))); in bcm2835_gpio_set_bit()
272 struct bcm2835_pinctrl *pc, unsigned pin) in bcm2835_pinctrl_fsel_get() argument
274 u32 val = bcm2835_gpio_rd(pc, FSEL_REG(pin)); in bcm2835_pinctrl_fsel_get()
277 dev_dbg(pc->dev, "get %08x (%u => %s)\n", val, pin, in bcm2835_pinctrl_fsel_get()
284 struct bcm2835_pinctrl *pc, unsigned pin, in bcm2835_pinctrl_fsel_set() argument
287 u32 val = bcm2835_gpio_rd(pc, FSEL_REG(pin)); in bcm2835_pinctrl_fsel_set()
290 dev_dbg(pc->dev, "read %08x (%u => %s)\n", val, pin, in bcm2835_pinctrl_fsel_set()
301 dev_dbg(pc->dev, "trans %08x (%u <= %s)\n", val, pin, in bcm2835_pinctrl_fsel_set()
303 bcm2835_gpio_wr(pc, FSEL_REG(pin), val); in bcm2835_pinctrl_fsel_set()
309 dev_dbg(pc->dev, "write %08x (%u <= %s)\n", val, pin, in bcm2835_pinctrl_fsel_set()
311 bcm2835_gpio_wr(pc, FSEL_REG(pin), val); in bcm2835_pinctrl_fsel_set()
316 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_direction_input() local
318 bcm2835_pinctrl_fsel_set(pc, offset, BCM2835_FSEL_GPIO_IN); in bcm2835_gpio_direction_input()
324 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_get() local
326 return bcm2835_gpio_get_bit(pc, GPLEV0, offset); in bcm2835_gpio_get()
331 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_get_direction() local
332 enum bcm2835_fsel fsel = bcm2835_pinctrl_fsel_get(pc, offset); in bcm2835_gpio_get_direction()
346 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_set() local
348 bcm2835_gpio_set_bit(pc, value ? GPSET0 : GPCLR0, offset); in bcm2835_gpio_set()
354 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_direction_output() local
356 bcm2835_gpio_set_bit(pc, value ? GPSET0 : GPCLR0, offset); in bcm2835_gpio_direction_output()
357 bcm2835_pinctrl_fsel_set(pc, offset, BCM2835_FSEL_GPIO_OUT); in bcm2835_gpio_direction_output()
409 static void bcm2835_gpio_irq_handle_bank(struct bcm2835_pinctrl *pc, in bcm2835_gpio_irq_handle_bank() argument
416 events = bcm2835_gpio_rd(pc, GPEDS0 + bank * 4); in bcm2835_gpio_irq_handle_bank()
418 events &= pc->enabled_irq_map[bank]; in bcm2835_gpio_irq_handle_bank()
421 generic_handle_domain_irq(pc->gpio_chip.irq.domain, in bcm2835_gpio_irq_handle_bank()
429 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_irq_handler() local
448 bcm2835_gpio_irq_handle_bank(pc, 0, 0x0fffffff); in bcm2835_gpio_irq_handler()
451 bcm2835_gpio_irq_handle_bank(pc, 0, 0xf0000000); in bcm2835_gpio_irq_handler()
452 bcm2835_gpio_irq_handle_bank(pc, 1, 0x00003fff); in bcm2835_gpio_irq_handler()
455 bcm2835_gpio_irq_handle_bank(pc, 1, 0x003fc000); in bcm2835_gpio_irq_handler()
467 static inline void __bcm2835_gpio_irq_config(struct bcm2835_pinctrl *pc, in __bcm2835_gpio_irq_config() argument
472 value = bcm2835_gpio_rd(pc, reg); in __bcm2835_gpio_irq_config()
477 bcm2835_gpio_wr(pc, reg, value); in __bcm2835_gpio_irq_config()
481 static void bcm2835_gpio_irq_config(struct bcm2835_pinctrl *pc, in bcm2835_gpio_irq_config() argument
484 switch (pc->irq_type[offset]) { in bcm2835_gpio_irq_config()
486 __bcm2835_gpio_irq_config(pc, GPREN0, offset, enable); in bcm2835_gpio_irq_config()
490 __bcm2835_gpio_irq_config(pc, GPFEN0, offset, enable); in bcm2835_gpio_irq_config()
494 __bcm2835_gpio_irq_config(pc, GPREN0, offset, enable); in bcm2835_gpio_irq_config()
495 __bcm2835_gpio_irq_config(pc, GPFEN0, offset, enable); in bcm2835_gpio_irq_config()
499 __bcm2835_gpio_irq_config(pc, GPHEN0, offset, enable); in bcm2835_gpio_irq_config()
503 __bcm2835_gpio_irq_config(pc, GPLEN0, offset, enable); in bcm2835_gpio_irq_config()
511 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_irq_unmask() local
519 raw_spin_lock_irqsave(&pc->irq_lock[bank], flags); in bcm2835_gpio_irq_unmask()
520 set_bit(offset, &pc->enabled_irq_map[bank]); in bcm2835_gpio_irq_unmask()
521 bcm2835_gpio_irq_config(pc, gpio, true); in bcm2835_gpio_irq_unmask()
522 raw_spin_unlock_irqrestore(&pc->irq_lock[bank], flags); in bcm2835_gpio_irq_unmask()
528 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_irq_mask() local
534 raw_spin_lock_irqsave(&pc->irq_lock[bank], flags); in bcm2835_gpio_irq_mask()
535 bcm2835_gpio_irq_config(pc, gpio, false); in bcm2835_gpio_irq_mask()
537 bcm2835_gpio_set_bit(pc, GPEDS0, gpio); in bcm2835_gpio_irq_mask()
538 clear_bit(offset, &pc->enabled_irq_map[bank]); in bcm2835_gpio_irq_mask()
539 raw_spin_unlock_irqrestore(&pc->irq_lock[bank], flags); in bcm2835_gpio_irq_mask()
544 static int __bcm2835_gpio_irq_set_type_disabled(struct bcm2835_pinctrl *pc, in __bcm2835_gpio_irq_set_type_disabled() argument
554 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_disabled()
564 static int __bcm2835_gpio_irq_set_type_enabled(struct bcm2835_pinctrl *pc, in __bcm2835_gpio_irq_set_type_enabled() argument
569 if (pc->irq_type[offset] != type) { in __bcm2835_gpio_irq_set_type_enabled()
570 bcm2835_gpio_irq_config(pc, offset, false); in __bcm2835_gpio_irq_set_type_enabled()
571 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
576 if (pc->irq_type[offset] == IRQ_TYPE_EDGE_BOTH) { in __bcm2835_gpio_irq_set_type_enabled()
578 pc->irq_type[offset] = IRQ_TYPE_EDGE_FALLING; in __bcm2835_gpio_irq_set_type_enabled()
579 bcm2835_gpio_irq_config(pc, offset, false); in __bcm2835_gpio_irq_set_type_enabled()
580 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
581 } else if (pc->irq_type[offset] != type) { in __bcm2835_gpio_irq_set_type_enabled()
582 bcm2835_gpio_irq_config(pc, offset, false); in __bcm2835_gpio_irq_set_type_enabled()
583 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
584 bcm2835_gpio_irq_config(pc, offset, true); in __bcm2835_gpio_irq_set_type_enabled()
589 if (pc->irq_type[offset] == IRQ_TYPE_EDGE_BOTH) { in __bcm2835_gpio_irq_set_type_enabled()
591 pc->irq_type[offset] = IRQ_TYPE_EDGE_RISING; in __bcm2835_gpio_irq_set_type_enabled()
592 bcm2835_gpio_irq_config(pc, offset, false); in __bcm2835_gpio_irq_set_type_enabled()
593 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
594 } else if (pc->irq_type[offset] != type) { in __bcm2835_gpio_irq_set_type_enabled()
595 bcm2835_gpio_irq_config(pc, offset, false); in __bcm2835_gpio_irq_set_type_enabled()
596 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
597 bcm2835_gpio_irq_config(pc, offset, true); in __bcm2835_gpio_irq_set_type_enabled()
602 if (pc->irq_type[offset] == IRQ_TYPE_EDGE_RISING) { in __bcm2835_gpio_irq_set_type_enabled()
604 pc->irq_type[offset] = IRQ_TYPE_EDGE_FALLING; in __bcm2835_gpio_irq_set_type_enabled()
605 bcm2835_gpio_irq_config(pc, offset, true); in __bcm2835_gpio_irq_set_type_enabled()
606 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
607 } else if (pc->irq_type[offset] == IRQ_TYPE_EDGE_FALLING) { in __bcm2835_gpio_irq_set_type_enabled()
609 pc->irq_type[offset] = IRQ_TYPE_EDGE_RISING; in __bcm2835_gpio_irq_set_type_enabled()
610 bcm2835_gpio_irq_config(pc, offset, true); in __bcm2835_gpio_irq_set_type_enabled()
611 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
612 } else if (pc->irq_type[offset] != type) { in __bcm2835_gpio_irq_set_type_enabled()
613 bcm2835_gpio_irq_config(pc, offset, false); in __bcm2835_gpio_irq_set_type_enabled()
614 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
615 bcm2835_gpio_irq_config(pc, offset, true); in __bcm2835_gpio_irq_set_type_enabled()
621 if (pc->irq_type[offset] != type) { in __bcm2835_gpio_irq_set_type_enabled()
622 bcm2835_gpio_irq_config(pc, offset, false); in __bcm2835_gpio_irq_set_type_enabled()
623 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
624 bcm2835_gpio_irq_config(pc, offset, true); in __bcm2835_gpio_irq_set_type_enabled()
637 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_irq_set_type() local
644 raw_spin_lock_irqsave(&pc->irq_lock[bank], flags); in bcm2835_gpio_irq_set_type()
646 if (test_bit(offset, &pc->enabled_irq_map[bank])) in bcm2835_gpio_irq_set_type()
647 ret = __bcm2835_gpio_irq_set_type_enabled(pc, gpio, type); in bcm2835_gpio_irq_set_type()
649 ret = __bcm2835_gpio_irq_set_type_disabled(pc, gpio, type); in bcm2835_gpio_irq_set_type()
656 raw_spin_unlock_irqrestore(&pc->irq_lock[bank], flags); in bcm2835_gpio_irq_set_type()
664 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_irq_ack() local
667 bcm2835_gpio_set_bit(pc, GPEDS0, gpio); in bcm2835_gpio_irq_ack()
673 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_irq_set_wake() local
678 if (!pc->wake_irq) in bcm2835_gpio_irq_set_wake()
691 ret = enable_irq_wake(pc->wake_irq[irqgroup]); in bcm2835_gpio_irq_set_wake()
693 ret = disable_irq_wake(pc->wake_irq[irqgroup]); in bcm2835_gpio_irq_set_wake()
735 struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); in bcm2835_pctl_pin_dbg_show() local
736 struct gpio_chip *chip = &pc->gpio_chip; in bcm2835_pctl_pin_dbg_show()
737 enum bcm2835_fsel fsel = bcm2835_pinctrl_fsel_get(pc, offset); in bcm2835_pctl_pin_dbg_show()
739 int value = bcm2835_gpio_get_bit(pc, GPLEV0, offset); in bcm2835_pctl_pin_dbg_show()
744 irq, irq_type_names[pc->irq_type[offset]]); in bcm2835_pctl_pin_dbg_show()
759 static int bcm2835_pctl_dt_node_to_map_func(struct bcm2835_pinctrl *pc, in bcm2835_pctl_dt_node_to_map_func() argument
766 dev_err(pc->dev, "%pOF: invalid brcm,function %d\n", np, fnum); in bcm2835_pctl_dt_node_to_map_func()
778 static int bcm2835_pctl_dt_node_to_map_pull(struct bcm2835_pinctrl *pc, in bcm2835_pctl_dt_node_to_map_pull() argument
786 dev_err(pc->dev, "%pOF: invalid brcm,pull %d\n", np, pull); in bcm2835_pctl_dt_node_to_map_pull()
808 struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); in bcm2835_pctl_dt_node_to_map() local
823 dev_err(pc->dev, "%pOF: missing brcm,pins property\n", np); in bcm2835_pctl_dt_node_to_map()
831 dev_err(pc->dev, in bcm2835_pctl_dt_node_to_map()
842 dev_err(pc->dev, in bcm2835_pctl_dt_node_to_map()
849 dev_err(pc->dev, in bcm2835_pctl_dt_node_to_map()
869 if (pin >= pc->pctl_desc.npins) { in bcm2835_pctl_dt_node_to_map()
870 dev_err(pc->dev, "%pOF: invalid brcm,pins value %d\n", in bcm2835_pctl_dt_node_to_map()
881 err = bcm2835_pctl_dt_node_to_map_func(pc, np, pin, in bcm2835_pctl_dt_node_to_map()
891 err = bcm2835_pctl_dt_node_to_map_pull(pc, np, pin, in bcm2835_pctl_dt_node_to_map()
920 struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); in bcm2835_pmx_free() local
923 bcm2835_pinctrl_fsel_set(pc, offset, BCM2835_FSEL_GPIO_IN); in bcm2835_pmx_free()
954 struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); in bcm2835_pmx_set() local
956 bcm2835_pinctrl_fsel_set(pc, group_selector, func_selector); in bcm2835_pmx_set()
965 struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); in bcm2835_pmx_gpio_disable_free() local
968 bcm2835_pinctrl_fsel_set(pc, offset, BCM2835_FSEL_GPIO_IN); in bcm2835_pmx_gpio_disable_free()
976 struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); in bcm2835_pmx_gpio_set_direction() local
980 bcm2835_pinctrl_fsel_set(pc, offset, fsel); in bcm2835_pmx_gpio_set_direction()
1002 static void bcm2835_pull_config_set(struct bcm2835_pinctrl *pc, in bcm2835_pull_config_set() argument
1010 bcm2835_gpio_wr(pc, GPPUD, arg & 3); in bcm2835_pull_config_set()
1018 bcm2835_gpio_wr(pc, GPPUDCLK0 + (off * 4), BIT(bit)); in bcm2835_pull_config_set()
1020 bcm2835_gpio_wr(pc, GPPUDCLK0 + (off * 4), 0); in bcm2835_pull_config_set()
1027 struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); in bcm2835_pinconf_set() local
1038 bcm2835_pull_config_set(pc, pin, arg); in bcm2835_pinconf_set()
1043 bcm2835_pull_config_set(pc, pin, BCM2835_PUD_OFF); in bcm2835_pinconf_set()
1047 bcm2835_pull_config_set(pc, pin, BCM2835_PUD_DOWN); in bcm2835_pinconf_set()
1051 bcm2835_pull_config_set(pc, pin, BCM2835_PUD_UP); in bcm2835_pinconf_set()
1056 bcm2835_gpio_set_bit(pc, arg ? GPSET0 : GPCLR0, pin); in bcm2835_pinconf_set()
1074 static void bcm2711_pull_config_set(struct bcm2835_pinctrl *pc, in bcm2711_pull_config_set() argument
1084 value = bcm2835_gpio_rd(pc, GP_GPIO_PUP_PDN_CNTRL_REG0 + (off * 4)); in bcm2711_pull_config_set()
1087 bcm2835_gpio_wr(pc, GP_GPIO_PUP_PDN_CNTRL_REG0 + (off * 4), value); in bcm2711_pull_config_set()
1094 struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); in bcm2711_pinconf_set() local
1112 bcm2711_pull_config_set(pc, pin, arg); in bcm2711_pinconf_set()
1117 bcm2711_pull_config_set(pc, pin, BCM2711_PULL_NONE); in bcm2711_pinconf_set()
1120 bcm2711_pull_config_set(pc, pin, BCM2711_PULL_DOWN); in bcm2711_pinconf_set()
1123 bcm2711_pull_config_set(pc, pin, BCM2711_PULL_UP); in bcm2711_pinconf_set()
1128 bcm2835_gpio_set_bit(pc, arg ? GPSET0 : GPCLR0, pin); in bcm2711_pinconf_set()
1214 struct bcm2835_pinctrl *pc; in bcm2835_pinctrl_probe() local
1224 pc = devm_kzalloc(dev, sizeof(*pc), GFP_KERNEL); in bcm2835_pinctrl_probe()
1225 if (!pc) in bcm2835_pinctrl_probe()
1228 platform_set_drvdata(pdev, pc); in bcm2835_pinctrl_probe()
1229 pc->dev = dev; in bcm2835_pinctrl_probe()
1237 pc->base = devm_ioremap_resource(dev, &iomem); in bcm2835_pinctrl_probe()
1238 if (IS_ERR(pc->base)) in bcm2835_pinctrl_probe()
1239 return PTR_ERR(pc->base); in bcm2835_pinctrl_probe()
1248 pc->gpio_chip = *pdata->gpio_chip; in bcm2835_pinctrl_probe()
1249 pc->gpio_chip.parent = dev; in bcm2835_pinctrl_probe()
1256 bcm2835_gpio_wr(pc, GPREN0 + i * 4, 0); in bcm2835_pinctrl_probe()
1257 bcm2835_gpio_wr(pc, GPFEN0 + i * 4, 0); in bcm2835_pinctrl_probe()
1258 bcm2835_gpio_wr(pc, GPHEN0 + i * 4, 0); in bcm2835_pinctrl_probe()
1259 bcm2835_gpio_wr(pc, GPLEN0 + i * 4, 0); in bcm2835_pinctrl_probe()
1260 bcm2835_gpio_wr(pc, GPAREN0 + i * 4, 0); in bcm2835_pinctrl_probe()
1261 bcm2835_gpio_wr(pc, GPAFEN0 + i * 4, 0); in bcm2835_pinctrl_probe()
1264 events = bcm2835_gpio_rd(pc, GPEDS0 + i * 4); in bcm2835_pinctrl_probe()
1266 bcm2835_gpio_wr(pc, GPEDS0 + i * 4, BIT(offset)); in bcm2835_pinctrl_probe()
1268 raw_spin_lock_init(&pc->irq_lock[i]); in bcm2835_pinctrl_probe()
1271 pc->pctl_desc = *pdata->pctl_desc; in bcm2835_pinctrl_probe()
1272 pc->pctl_dev = devm_pinctrl_register(dev, &pc->pctl_desc, pc); in bcm2835_pinctrl_probe()
1273 if (IS_ERR(pc->pctl_dev)) { in bcm2835_pinctrl_probe()
1274 gpiochip_remove(&pc->gpio_chip); in bcm2835_pinctrl_probe()
1275 return PTR_ERR(pc->pctl_dev); in bcm2835_pinctrl_probe()
1278 pc->gpio_range = *pdata->gpio_range; in bcm2835_pinctrl_probe()
1279 pc->gpio_range.base = pc->gpio_chip.base; in bcm2835_pinctrl_probe()
1280 pc->gpio_range.gc = &pc->gpio_chip; in bcm2835_pinctrl_probe()
1281 pinctrl_add_gpio_range(pc->pctl_dev, &pc->gpio_range); in bcm2835_pinctrl_probe()
1283 girq = &pc->gpio_chip.irq; in bcm2835_pinctrl_probe()
1296 pc->wake_irq = devm_kcalloc(dev, BCM2835_NUM_IRQS, in bcm2835_pinctrl_probe()
1297 sizeof(*pc->wake_irq), in bcm2835_pinctrl_probe()
1299 if (!pc->wake_irq) { in bcm2835_pinctrl_probe()
1325 pc->wake_irq[i] = irq_of_parse_and_map(np, i + in bcm2835_pinctrl_probe()
1328 len = strlen(dev_name(pc->dev)) + 16; in bcm2835_pinctrl_probe()
1329 name = devm_kzalloc(pc->dev, len, GFP_KERNEL); in bcm2835_pinctrl_probe()
1335 snprintf(name, len, "%s:bank%d", dev_name(pc->dev), i); in bcm2835_pinctrl_probe()
1338 err = devm_request_irq(dev, pc->wake_irq[i], in bcm2835_pinctrl_probe()
1340 IRQF_SHARED, name, pc); in bcm2835_pinctrl_probe()
1343 pc->wake_irq[i]); in bcm2835_pinctrl_probe()
1349 err = gpiochip_add_data(&pc->gpio_chip, pc); in bcm2835_pinctrl_probe()
1358 pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range); in bcm2835_pinctrl_probe()