Lines Matching refs:pc
244 static inline u32 bcm2835_gpio_rd(struct bcm2835_pinctrl *pc, unsigned reg) in bcm2835_gpio_rd() argument
246 return readl(pc->base + reg); in bcm2835_gpio_rd()
249 static inline void bcm2835_gpio_wr(struct bcm2835_pinctrl *pc, unsigned reg, in bcm2835_gpio_wr() argument
252 writel(val, pc->base + reg); in bcm2835_gpio_wr()
255 static inline int bcm2835_gpio_get_bit(struct bcm2835_pinctrl *pc, unsigned reg, in bcm2835_gpio_get_bit() argument
259 return (bcm2835_gpio_rd(pc, reg) >> GPIO_REG_SHIFT(bit)) & 1; in bcm2835_gpio_get_bit()
263 static inline void bcm2835_gpio_set_bit(struct bcm2835_pinctrl *pc, in bcm2835_gpio_set_bit() argument
267 bcm2835_gpio_wr(pc, reg, BIT(GPIO_REG_SHIFT(bit))); in bcm2835_gpio_set_bit()
271 struct bcm2835_pinctrl *pc, unsigned pin) in bcm2835_pinctrl_fsel_get() argument
273 u32 val = bcm2835_gpio_rd(pc, FSEL_REG(pin)); in bcm2835_pinctrl_fsel_get()
276 dev_dbg(pc->dev, "get %08x (%u => %s)\n", val, pin, in bcm2835_pinctrl_fsel_get()
283 struct bcm2835_pinctrl *pc, unsigned pin, in bcm2835_pinctrl_fsel_set() argument
286 u32 val = bcm2835_gpio_rd(pc, FSEL_REG(pin)); in bcm2835_pinctrl_fsel_set()
289 dev_dbg(pc->dev, "read %08x (%u => %s)\n", val, pin, in bcm2835_pinctrl_fsel_set()
300 dev_dbg(pc->dev, "trans %08x (%u <= %s)\n", val, pin, in bcm2835_pinctrl_fsel_set()
302 bcm2835_gpio_wr(pc, FSEL_REG(pin), val); in bcm2835_pinctrl_fsel_set()
308 dev_dbg(pc->dev, "write %08x (%u <= %s)\n", val, pin, in bcm2835_pinctrl_fsel_set()
310 bcm2835_gpio_wr(pc, FSEL_REG(pin), val); in bcm2835_pinctrl_fsel_set()
320 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_get() local
322 return bcm2835_gpio_get_bit(pc, GPLEV0, offset); in bcm2835_gpio_get()
327 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_get_direction() local
328 enum bcm2835_fsel fsel = bcm2835_pinctrl_fsel_get(pc, offset); in bcm2835_gpio_get_direction()
342 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_set() local
344 bcm2835_gpio_set_bit(pc, value ? GPSET0 : GPCLR0, offset); in bcm2835_gpio_set()
404 static void bcm2835_gpio_irq_handle_bank(struct bcm2835_pinctrl *pc, in bcm2835_gpio_irq_handle_bank() argument
411 events = bcm2835_gpio_rd(pc, GPEDS0 + bank * 4); in bcm2835_gpio_irq_handle_bank()
413 events &= pc->enabled_irq_map[bank]; in bcm2835_gpio_irq_handle_bank()
416 generic_handle_irq(irq_linear_revmap(pc->gpio_chip.irq.domain, in bcm2835_gpio_irq_handle_bank()
424 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_irq_handler() local
444 bcm2835_gpio_irq_handle_bank(pc, 0, 0x0fffffff); in bcm2835_gpio_irq_handler()
447 bcm2835_gpio_irq_handle_bank(pc, 0, 0xf0000000); in bcm2835_gpio_irq_handler()
448 bcm2835_gpio_irq_handle_bank(pc, 1, 0x00003fff); in bcm2835_gpio_irq_handler()
451 bcm2835_gpio_irq_handle_bank(pc, 1, 0x003fc000); in bcm2835_gpio_irq_handler()
463 static inline void __bcm2835_gpio_irq_config(struct bcm2835_pinctrl *pc, in __bcm2835_gpio_irq_config() argument
468 value = bcm2835_gpio_rd(pc, reg); in __bcm2835_gpio_irq_config()
473 bcm2835_gpio_wr(pc, reg, value); in __bcm2835_gpio_irq_config()
477 static void bcm2835_gpio_irq_config(struct bcm2835_pinctrl *pc, in bcm2835_gpio_irq_config() argument
480 switch (pc->irq_type[offset]) { in bcm2835_gpio_irq_config()
482 __bcm2835_gpio_irq_config(pc, GPREN0, offset, enable); in bcm2835_gpio_irq_config()
486 __bcm2835_gpio_irq_config(pc, GPFEN0, offset, enable); in bcm2835_gpio_irq_config()
490 __bcm2835_gpio_irq_config(pc, GPREN0, offset, enable); in bcm2835_gpio_irq_config()
491 __bcm2835_gpio_irq_config(pc, GPFEN0, offset, enable); in bcm2835_gpio_irq_config()
495 __bcm2835_gpio_irq_config(pc, GPHEN0, offset, enable); in bcm2835_gpio_irq_config()
499 __bcm2835_gpio_irq_config(pc, GPLEN0, offset, enable); in bcm2835_gpio_irq_config()
507 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_irq_enable() local
513 raw_spin_lock_irqsave(&pc->irq_lock[bank], flags); in bcm2835_gpio_irq_enable()
514 set_bit(offset, &pc->enabled_irq_map[bank]); in bcm2835_gpio_irq_enable()
515 bcm2835_gpio_irq_config(pc, gpio, true); in bcm2835_gpio_irq_enable()
516 raw_spin_unlock_irqrestore(&pc->irq_lock[bank], flags); in bcm2835_gpio_irq_enable()
522 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_irq_disable() local
528 raw_spin_lock_irqsave(&pc->irq_lock[bank], flags); in bcm2835_gpio_irq_disable()
529 bcm2835_gpio_irq_config(pc, gpio, false); in bcm2835_gpio_irq_disable()
531 bcm2835_gpio_set_bit(pc, GPEDS0, gpio); in bcm2835_gpio_irq_disable()
532 clear_bit(offset, &pc->enabled_irq_map[bank]); in bcm2835_gpio_irq_disable()
533 raw_spin_unlock_irqrestore(&pc->irq_lock[bank], flags); in bcm2835_gpio_irq_disable()
536 static int __bcm2835_gpio_irq_set_type_disabled(struct bcm2835_pinctrl *pc, in __bcm2835_gpio_irq_set_type_disabled() argument
546 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_disabled()
556 static int __bcm2835_gpio_irq_set_type_enabled(struct bcm2835_pinctrl *pc, in __bcm2835_gpio_irq_set_type_enabled() argument
561 if (pc->irq_type[offset] != type) { in __bcm2835_gpio_irq_set_type_enabled()
562 bcm2835_gpio_irq_config(pc, offset, false); in __bcm2835_gpio_irq_set_type_enabled()
563 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
568 if (pc->irq_type[offset] == IRQ_TYPE_EDGE_BOTH) { in __bcm2835_gpio_irq_set_type_enabled()
570 pc->irq_type[offset] = IRQ_TYPE_EDGE_FALLING; in __bcm2835_gpio_irq_set_type_enabled()
571 bcm2835_gpio_irq_config(pc, offset, false); in __bcm2835_gpio_irq_set_type_enabled()
572 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
573 } else if (pc->irq_type[offset] != type) { in __bcm2835_gpio_irq_set_type_enabled()
574 bcm2835_gpio_irq_config(pc, offset, false); in __bcm2835_gpio_irq_set_type_enabled()
575 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
576 bcm2835_gpio_irq_config(pc, offset, true); in __bcm2835_gpio_irq_set_type_enabled()
581 if (pc->irq_type[offset] == IRQ_TYPE_EDGE_BOTH) { in __bcm2835_gpio_irq_set_type_enabled()
583 pc->irq_type[offset] = IRQ_TYPE_EDGE_RISING; in __bcm2835_gpio_irq_set_type_enabled()
584 bcm2835_gpio_irq_config(pc, offset, false); in __bcm2835_gpio_irq_set_type_enabled()
585 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
586 } else if (pc->irq_type[offset] != type) { in __bcm2835_gpio_irq_set_type_enabled()
587 bcm2835_gpio_irq_config(pc, offset, false); in __bcm2835_gpio_irq_set_type_enabled()
588 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
589 bcm2835_gpio_irq_config(pc, offset, true); in __bcm2835_gpio_irq_set_type_enabled()
594 if (pc->irq_type[offset] == IRQ_TYPE_EDGE_RISING) { in __bcm2835_gpio_irq_set_type_enabled()
596 pc->irq_type[offset] = IRQ_TYPE_EDGE_FALLING; in __bcm2835_gpio_irq_set_type_enabled()
597 bcm2835_gpio_irq_config(pc, offset, true); in __bcm2835_gpio_irq_set_type_enabled()
598 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
599 } else if (pc->irq_type[offset] == IRQ_TYPE_EDGE_FALLING) { in __bcm2835_gpio_irq_set_type_enabled()
601 pc->irq_type[offset] = IRQ_TYPE_EDGE_RISING; in __bcm2835_gpio_irq_set_type_enabled()
602 bcm2835_gpio_irq_config(pc, offset, true); in __bcm2835_gpio_irq_set_type_enabled()
603 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
604 } else if (pc->irq_type[offset] != type) { in __bcm2835_gpio_irq_set_type_enabled()
605 bcm2835_gpio_irq_config(pc, offset, false); in __bcm2835_gpio_irq_set_type_enabled()
606 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
607 bcm2835_gpio_irq_config(pc, offset, true); in __bcm2835_gpio_irq_set_type_enabled()
613 if (pc->irq_type[offset] != type) { in __bcm2835_gpio_irq_set_type_enabled()
614 bcm2835_gpio_irq_config(pc, offset, false); in __bcm2835_gpio_irq_set_type_enabled()
615 pc->irq_type[offset] = type; in __bcm2835_gpio_irq_set_type_enabled()
616 bcm2835_gpio_irq_config(pc, offset, true); in __bcm2835_gpio_irq_set_type_enabled()
629 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_irq_set_type() local
636 raw_spin_lock_irqsave(&pc->irq_lock[bank], flags); in bcm2835_gpio_irq_set_type()
638 if (test_bit(offset, &pc->enabled_irq_map[bank])) in bcm2835_gpio_irq_set_type()
639 ret = __bcm2835_gpio_irq_set_type_enabled(pc, gpio, type); in bcm2835_gpio_irq_set_type()
641 ret = __bcm2835_gpio_irq_set_type_disabled(pc, gpio, type); in bcm2835_gpio_irq_set_type()
648 raw_spin_unlock_irqrestore(&pc->irq_lock[bank], flags); in bcm2835_gpio_irq_set_type()
656 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_irq_ack() local
659 bcm2835_gpio_set_bit(pc, GPEDS0, gpio); in bcm2835_gpio_irq_ack()
665 struct bcm2835_pinctrl *pc = gpiochip_get_data(chip); in bcm2835_gpio_irq_set_wake() local
670 if (!pc->wake_irq) in bcm2835_gpio_irq_set_wake()
683 ret = enable_irq_wake(pc->wake_irq[irqgroup]); in bcm2835_gpio_irq_set_wake()
685 ret = disable_irq_wake(pc->wake_irq[irqgroup]); in bcm2835_gpio_irq_set_wake()
728 struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); in bcm2835_pctl_pin_dbg_show() local
729 struct gpio_chip *chip = &pc->gpio_chip; in bcm2835_pctl_pin_dbg_show()
730 enum bcm2835_fsel fsel = bcm2835_pinctrl_fsel_get(pc, offset); in bcm2835_pctl_pin_dbg_show()
732 int value = bcm2835_gpio_get_bit(pc, GPLEV0, offset); in bcm2835_pctl_pin_dbg_show()
737 irq, irq_type_names[pc->irq_type[offset]]); in bcm2835_pctl_pin_dbg_show()
752 static int bcm2835_pctl_dt_node_to_map_func(struct bcm2835_pinctrl *pc, in bcm2835_pctl_dt_node_to_map_func() argument
759 dev_err(pc->dev, "%pOF: invalid brcm,function %d\n", np, fnum); in bcm2835_pctl_dt_node_to_map_func()
771 static int bcm2835_pctl_dt_node_to_map_pull(struct bcm2835_pinctrl *pc, in bcm2835_pctl_dt_node_to_map_pull() argument
779 dev_err(pc->dev, "%pOF: invalid brcm,pull %d\n", np, pull); in bcm2835_pctl_dt_node_to_map_pull()
801 struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); in bcm2835_pctl_dt_node_to_map() local
816 dev_err(pc->dev, "%pOF: missing brcm,pins property\n", np); in bcm2835_pctl_dt_node_to_map()
824 dev_err(pc->dev, in bcm2835_pctl_dt_node_to_map()
835 dev_err(pc->dev, in bcm2835_pctl_dt_node_to_map()
842 dev_err(pc->dev, in bcm2835_pctl_dt_node_to_map()
862 if (pin >= pc->pctl_desc.npins) { in bcm2835_pctl_dt_node_to_map()
863 dev_err(pc->dev, "%pOF: invalid brcm,pins value %d\n", in bcm2835_pctl_dt_node_to_map()
874 err = bcm2835_pctl_dt_node_to_map_func(pc, np, pin, in bcm2835_pctl_dt_node_to_map()
884 err = bcm2835_pctl_dt_node_to_map_pull(pc, np, pin, in bcm2835_pctl_dt_node_to_map()
913 struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); in bcm2835_pmx_free() local
916 bcm2835_pinctrl_fsel_set(pc, offset, BCM2835_FSEL_GPIO_IN); in bcm2835_pmx_free()
947 struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); in bcm2835_pmx_set() local
949 bcm2835_pinctrl_fsel_set(pc, group_selector, func_selector); in bcm2835_pmx_set()
958 struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); in bcm2835_pmx_gpio_disable_free() local
961 bcm2835_pinctrl_fsel_set(pc, offset, BCM2835_FSEL_GPIO_IN); in bcm2835_pmx_gpio_disable_free()
969 struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); in bcm2835_pmx_gpio_set_direction() local
973 bcm2835_pinctrl_fsel_set(pc, offset, fsel); in bcm2835_pmx_gpio_set_direction()
995 static void bcm2835_pull_config_set(struct bcm2835_pinctrl *pc, in bcm2835_pull_config_set() argument
1003 bcm2835_gpio_wr(pc, GPPUD, arg & 3); in bcm2835_pull_config_set()
1011 bcm2835_gpio_wr(pc, GPPUDCLK0 + (off * 4), BIT(bit)); in bcm2835_pull_config_set()
1013 bcm2835_gpio_wr(pc, GPPUDCLK0 + (off * 4), 0); in bcm2835_pull_config_set()
1020 struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); in bcm2835_pinconf_set() local
1031 bcm2835_pull_config_set(pc, pin, arg); in bcm2835_pinconf_set()
1036 bcm2835_pull_config_set(pc, pin, BCM2835_PUD_OFF); in bcm2835_pinconf_set()
1040 bcm2835_pull_config_set(pc, pin, BCM2835_PUD_DOWN); in bcm2835_pinconf_set()
1044 bcm2835_pull_config_set(pc, pin, BCM2835_PUD_UP); in bcm2835_pinconf_set()
1049 bcm2835_gpio_set_bit(pc, arg ? GPSET0 : GPCLR0, pin); in bcm2835_pinconf_set()
1067 static void bcm2711_pull_config_set(struct bcm2835_pinctrl *pc, in bcm2711_pull_config_set() argument
1077 value = bcm2835_gpio_rd(pc, GP_GPIO_PUP_PDN_CNTRL_REG0 + (off * 4)); in bcm2711_pull_config_set()
1080 bcm2835_gpio_wr(pc, GP_GPIO_PUP_PDN_CNTRL_REG0 + (off * 4), value); in bcm2711_pull_config_set()
1087 struct bcm2835_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); in bcm2711_pinconf_set() local
1105 bcm2711_pull_config_set(pc, pin, arg); in bcm2711_pinconf_set()
1110 bcm2711_pull_config_set(pc, pin, BCM2711_PULL_NONE); in bcm2711_pinconf_set()
1113 bcm2711_pull_config_set(pc, pin, BCM2711_PULL_DOWN); in bcm2711_pinconf_set()
1116 bcm2711_pull_config_set(pc, pin, BCM2711_PULL_UP); in bcm2711_pinconf_set()
1121 bcm2835_gpio_set_bit(pc, arg ? GPSET0 : GPCLR0, pin); in bcm2711_pinconf_set()
1207 struct bcm2835_pinctrl *pc; in bcm2835_pinctrl_probe() local
1217 pc = devm_kzalloc(dev, sizeof(*pc), GFP_KERNEL); in bcm2835_pinctrl_probe()
1218 if (!pc) in bcm2835_pinctrl_probe()
1221 platform_set_drvdata(pdev, pc); in bcm2835_pinctrl_probe()
1222 pc->dev = dev; in bcm2835_pinctrl_probe()
1230 pc->base = devm_ioremap_resource(dev, &iomem); in bcm2835_pinctrl_probe()
1231 if (IS_ERR(pc->base)) in bcm2835_pinctrl_probe()
1232 return PTR_ERR(pc->base); in bcm2835_pinctrl_probe()
1241 pc->gpio_chip = *pdata->gpio_chip; in bcm2835_pinctrl_probe()
1242 pc->gpio_chip.parent = dev; in bcm2835_pinctrl_probe()
1243 pc->gpio_chip.of_node = np; in bcm2835_pinctrl_probe()
1250 bcm2835_gpio_wr(pc, GPREN0 + i * 4, 0); in bcm2835_pinctrl_probe()
1251 bcm2835_gpio_wr(pc, GPFEN0 + i * 4, 0); in bcm2835_pinctrl_probe()
1252 bcm2835_gpio_wr(pc, GPHEN0 + i * 4, 0); in bcm2835_pinctrl_probe()
1253 bcm2835_gpio_wr(pc, GPLEN0 + i * 4, 0); in bcm2835_pinctrl_probe()
1254 bcm2835_gpio_wr(pc, GPAREN0 + i * 4, 0); in bcm2835_pinctrl_probe()
1255 bcm2835_gpio_wr(pc, GPAFEN0 + i * 4, 0); in bcm2835_pinctrl_probe()
1258 events = bcm2835_gpio_rd(pc, GPEDS0 + i * 4); in bcm2835_pinctrl_probe()
1260 bcm2835_gpio_wr(pc, GPEDS0 + i * 4, BIT(offset)); in bcm2835_pinctrl_probe()
1262 raw_spin_lock_init(&pc->irq_lock[i]); in bcm2835_pinctrl_probe()
1265 pc->pctl_desc = *pdata->pctl_desc; in bcm2835_pinctrl_probe()
1266 pc->pctl_dev = devm_pinctrl_register(dev, &pc->pctl_desc, pc); in bcm2835_pinctrl_probe()
1267 if (IS_ERR(pc->pctl_dev)) { in bcm2835_pinctrl_probe()
1268 gpiochip_remove(&pc->gpio_chip); in bcm2835_pinctrl_probe()
1269 return PTR_ERR(pc->pctl_dev); in bcm2835_pinctrl_probe()
1272 pc->gpio_range = *pdata->gpio_range; in bcm2835_pinctrl_probe()
1273 pc->gpio_range.base = pc->gpio_chip.base; in bcm2835_pinctrl_probe()
1274 pc->gpio_range.gc = &pc->gpio_chip; in bcm2835_pinctrl_probe()
1275 pinctrl_add_gpio_range(pc->pctl_dev, &pc->gpio_range); in bcm2835_pinctrl_probe()
1277 girq = &pc->gpio_chip.irq; in bcm2835_pinctrl_probe()
1290 pc->wake_irq = devm_kcalloc(dev, BCM2835_NUM_IRQS, in bcm2835_pinctrl_probe()
1291 sizeof(*pc->wake_irq), in bcm2835_pinctrl_probe()
1293 if (!pc->wake_irq) { in bcm2835_pinctrl_probe()
1315 pc->wake_irq[i] = irq_of_parse_and_map(np, i + in bcm2835_pinctrl_probe()
1318 len = strlen(dev_name(pc->dev)) + 16; in bcm2835_pinctrl_probe()
1319 name = devm_kzalloc(pc->dev, len, GFP_KERNEL); in bcm2835_pinctrl_probe()
1325 snprintf(name, len, "%s:bank%d", dev_name(pc->dev), i); in bcm2835_pinctrl_probe()
1328 err = devm_request_irq(dev, pc->wake_irq[i], in bcm2835_pinctrl_probe()
1330 IRQF_SHARED, name, pc); in bcm2835_pinctrl_probe()
1333 pc->wake_irq[i]); in bcm2835_pinctrl_probe()
1339 err = gpiochip_add_data(&pc->gpio_chip, pc); in bcm2835_pinctrl_probe()
1348 pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range); in bcm2835_pinctrl_probe()