diff options
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/mediatek/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/pinctrl/mediatek/Makefile | 1 | ||||
| -rw-r--r-- | drivers/pinctrl/mediatek/mtk-eint.c | 492 | ||||
| -rw-r--r-- | drivers/pinctrl/mediatek/mtk-eint.h | 107 | ||||
| -rw-r--r-- | drivers/pinctrl/mediatek/pinctrl-mt2701.c | 12 | ||||
| -rw-r--r-- | drivers/pinctrl/mediatek/pinctrl-mt2712.c | 12 | ||||
| -rw-r--r-- | drivers/pinctrl/mediatek/pinctrl-mt8127.c | 12 | ||||
| -rw-r--r-- | drivers/pinctrl/mediatek/pinctrl-mt8135.c | 12 | ||||
| -rw-r--r-- | drivers/pinctrl/mediatek/pinctrl-mt8173.c | 12 | ||||
| -rw-r--r-- | drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 604 | ||||
| -rw-r--r-- | drivers/pinctrl/mediatek/pinctrl-mtk-common.h | 13 |
11 files changed, 756 insertions, 527 deletions
diff --git a/drivers/pinctrl/mediatek/Kconfig b/drivers/pinctrl/mediatek/Kconfig index 862c5dbc6977..310db425a94b 100644 --- a/drivers/pinctrl/mediatek/Kconfig +++ b/drivers/pinctrl/mediatek/Kconfig @@ -1,12 +1,18 @@ menu "MediaTek pinctrl drivers" depends on ARCH_MEDIATEK || COMPILE_TEST +config EINT_MTK + bool "MediaTek External Interrupt Support" + depends on PINCTRL_MTK || COMPILE_TEST + select IRQ_DOMAIN + config PINCTRL_MTK bool depends on OF select PINMUX select GENERIC_PINCONF select GPIOLIB + select EINT_MTK select OF_GPIO # For ARMv7 SoCs diff --git a/drivers/pinctrl/mediatek/Makefile b/drivers/pinctrl/mediatek/Makefile index 7959e773533f..3de7156df345 100644 --- a/drivers/pinctrl/mediatek/Makefile +++ b/drivers/pinctrl/mediatek/Makefile @@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 # Core +obj-$(CONFIG_EINT_MTK) += mtk-eint.o obj-$(CONFIG_PINCTRL_MTK) += pinctrl-mtk-common.o # SoC Drivers diff --git a/drivers/pinctrl/mediatek/mtk-eint.c b/drivers/pinctrl/mediatek/mtk-eint.c new file mode 100644 index 000000000000..30f3316747e2 --- /dev/null +++ b/drivers/pinctrl/mediatek/mtk-eint.c @@ -0,0 +1,492 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2014-2018 MediaTek Inc. + +/* + * Library for MediaTek External Interrupt Support + * + * Author: Maoguang Meng <maoguang.meng@mediatek.com> + * Sean Wang <sean.wang@mediatek.com> + * + */ + +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/gpio.h> +#include <linux/io.h> +#include <linux/irqdomain.h> +#include <linux/of_irq.h> +#include <linux/platform_device.h> + +#include "mtk-eint.h" + +#define MTK_EINT_EDGE_SENSITIVE 0 +#define MTK_EINT_LEVEL_SENSITIVE 1 +#define MTK_EINT_DBNC_SET_DBNC_BITS 4 +#define MTK_EINT_DBNC_RST_BIT (0x1 << 1) +#define MTK_EINT_DBNC_SET_EN (0x1 << 0) + +static const struct mtk_eint_regs mtk_generic_eint_regs = { + .stat = 0x000, + .ack = 0x040, + .mask = 0x080, + .mask_set = 0x0c0, + .mask_clr = 0x100, + .sens = 0x140, + .sens_set = 0x180, + .sens_clr = 0x1c0, + .soft = 0x200, + .soft_set = 0x240, + .soft_clr = 0x280, + .pol = 0x300, + .pol_set = 0x340, + .pol_clr = 0x380, + .dom_en = 0x400, + .dbnc_ctrl = 0x500, + .dbnc_set = 0x600, + .dbnc_clr = 0x700, +}; + +static void __iomem *mtk_eint_get_offset(struct mtk_eint *eint, + unsigned int eint_num, + unsigned int offset) +{ + unsigned int eint_base = 0; + void __iomem *reg; + + if (eint_num >= eint->hw->ap_num) + eint_base = eint->hw->ap_num; + + reg = eint->base + offset + ((eint_num - eint_base) / 32) * 4; + + return reg; +} + +static unsigned int mtk_eint_can_en_debounce(struct mtk_eint *eint, + unsigned int eint_num) +{ + unsigned int sens; + unsigned int bit = BIT(eint_num % 32); + void __iomem *reg = mtk_eint_get_offset(eint, eint_num, + eint->regs->sens); + + if (readl(reg) & bit) + sens = MTK_EINT_LEVEL_SENSITIVE; + else + sens = MTK_EINT_EDGE_SENSITIVE; + + if (eint_num < eint->hw->db_cnt && sens != MTK_EINT_EDGE_SENSITIVE) + return 1; + else + return 0; +} + +static int mtk_eint_flip_edge(struct mtk_eint *eint, int hwirq) +{ + int start_level, curr_level; + unsigned int reg_offset; + u32 mask = BIT(hwirq & 0x1f); + u32 port = (hwirq >> 5) & eint->hw->port_mask; + void __iomem *reg = eint->base + (port << 2); + + curr_level = eint->gpio_xlate->get_gpio_state(eint->pctl, hwirq); + + do { + start_level = curr_level; + if (start_level) + reg_offset = eint->regs->pol_clr; + else + reg_offset = eint->regs->pol_set; + writel(mask, reg + reg_offset); + + curr_level = eint->gpio_xlate->get_gpio_state(eint->pctl, + hwirq); + } while (start_level != curr_level); + + return start_level; +} + +static void mtk_eint_mask(struct irq_data *d) +{ + struct mtk_eint *eint = irq_data_get_irq_chip_data(d); + u32 mask = BIT(d->hwirq & 0x1f); + void __iomem *reg = mtk_eint_get_offset(eint, d->hwirq, + eint->regs->mask_set); + + writel(mask, reg); +} + +static void mtk_eint_unmask(struct irq_data *d) +{ + struct mtk_eint *eint = irq_data_get_irq_chip_data(d); + u32 mask = BIT(d->hwirq & 0x1f); + void __iomem *reg = mtk_eint_get_offset(eint, d->hwirq, + eint->regs->mask_clr); + + writel(mask, reg); + + if (eint->dual_edge[d->hwirq]) + mtk_eint_flip_edge(eint, d->hwirq); +} + +static unsigned int mtk_eint_get_mask(struct mtk_eint *eint, + unsigned int eint_num) +{ + unsigned int bit = BIT(eint_num % 32); + void __iomem *reg = mtk_eint_get_offset(eint, eint_num, + eint->regs->mask); + + return !!(readl(reg) & bit); +} + +static void mtk_eint_ack(struct irq_data *d) +{ + struct mtk_eint *eint = irq_data_get_irq_chip_data(d); + u32 mask = BIT(d->hwirq & 0x1f); + void __iomem *reg = mtk_eint_get_offset(eint, d->hwirq, + eint->regs->ack); + + writel(mask, reg); +} + +static int mtk_eint_set_type(struct irq_data *d, unsigned int type) +{ + struct mtk_eint *eint = irq_data_get_irq_chip_data(d); + u32 mask = BIT(d->hwirq & 0x1f); + void __iomem *reg; + + if (((type & IRQ_TYPE_EDGE_BOTH) && (type & IRQ_TYPE_LEVEL_MASK)) || + ((type & IRQ_TYPE_LEVEL_MASK) == IRQ_TYPE_LEVEL_MASK)) { + dev_err(eint->dev, + "Can't configure IRQ%d (EINT%lu) for type 0x%X\n", + d->irq, d->hwirq, type); + return -EINVAL; + } + + if ((type & IRQ_TYPE_EDGE_BOTH) == IRQ_TYPE_EDGE_BOTH) + eint->dual_edge[d->hwirq] = 1; + else + eint->dual_edge[d->hwirq] = 0; + + if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_EDGE_FALLING)) { + reg = mtk_eint_get_offset(eint, d->hwirq, eint->regs->pol_clr); + writel(mask, reg); + } else { + reg = mtk_eint_get_offset(eint, d->hwirq, eint->regs->pol_set); + writel(mask, reg); + } + + if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) { + reg = mtk_eint_get_offset(eint, d->hwirq, eint->regs->sens_clr); + writel(mask, reg); + } else { + reg = mtk_eint_get_offset(eint, d->hwirq, eint->regs->sens_set); + writel(mask, reg); + } + + if (eint->dual_edge[d->hwirq]) + mtk_eint_flip_edge(eint, d->hwirq); + + return 0; +} + +static int mtk_eint_irq_set_wake(struct irq_data *d, unsigned int on) +{ + struct mtk_eint *eint = irq_data_get_irq_chip_data(d); + int shift = d->hwirq & 0x1f; + int reg = d->hwirq >> 5; + + if (on) + eint->wake_mask[reg] |= BIT(shift); + else + eint->wake_mask[reg] &= ~BIT(shift); + + return 0; +} + +static void mtk_eint_chip_write_mask(const struct mtk_eint *eint, + void __iomem *base, u32 *buf) +{ + int port; + void __iomem *reg; + + for (port = 0; port < eint->hw->ports; port++) { + reg = base + (port << 2); + writel_relaxed(~buf[port], reg + eint->regs->mask_set); + writel_relaxed(buf[port], reg + eint->regs->mask_clr); + } +} + +static void mtk_eint_chip_read_mask(const struct mtk_eint *eint, + void __iomem *base, u32 *buf) +{ + int port; + void __iomem *reg; + + for (port = 0; port < eint->hw->ports; port++) { + reg = base + eint->regs->mask + (port << 2); + buf[port] = ~readl_relaxed(reg); + /* Mask is 0 when irq is enabled, and 1 when disabled. */ + } +} + +static int mtk_eint_irq_request_resources(struct irq_data *d) +{ + struct mtk_eint *eint = irq_data_get_irq_chip_data(d); + struct gpio_chip *gpio_c; + unsigned int gpio_n; + int err; + + err = eint->gpio_xlate->get_gpio_n(eint->pctl, d->hwirq, + &gpio_n, &gpio_c); + if (err < 0) { + dev_err(eint->dev, "Can not find pin\n"); + return err; + } + + err = gpiochip_lock_as_irq(gpio_c, gpio_n); + if (err < 0) { + dev_err(eint->dev, "unable to lock HW IRQ %lu for IRQ\n", + irqd_to_hwirq(d)); + return err; + } + + err = eint->gpio_xlate->set_gpio_as_eint(eint->pctl, d->hwirq); + if (err < 0) { + dev_err(eint->dev, "Can not eint mode\n"); + return err; + } + + return 0; +} + +static void mtk_eint_irq_release_resources(struct irq_data *d) +{ + struct mtk_eint *eint = irq_data_get_irq_chip_data(d); + struct gpio_chip *gpio_c; + unsigned int gpio_n; + + eint->gpio_xlate->get_gpio_n(eint->pctl, d->hwirq, &gpio_n, + &gpio_c); + + gpiochip_unlock_as_irq(gpio_c, gpio_n); +} + +static struct irq_chip mtk_eint_irq_chip = { + .name = "mt-eint", + .irq_disable = mtk_eint_mask, + .irq_mask = mtk_eint_mask, + .irq_unmask = mtk_eint_unmask, + .irq_ack = mtk_eint_ack, + .irq_set_type = mtk_eint_set_type, + .irq_set_wake = mtk_eint_irq_set_wake, + .irq_request_resources = mtk_eint_irq_request_resources, + .irq_release_resources = mtk_eint_irq_release_resources, +}; + +static unsigned int mtk_eint_hw_init(struct mtk_eint *eint) +{ + void __iomem *reg = eint->base + eint->regs->dom_en; + unsigned int i; + + for (i = 0; i < eint->hw->ap_num; i += 32) { + writel(0xffffffff, reg); + reg += 4; + } + + return 0; +} + +static inline void +mtk_eint_debounce_process(struct mtk_eint *eint, int index) +{ + unsigned int rst, ctrl_offset; + unsigned int bit, dbnc; + + ctrl_offset = (index / 4) * 4 + eint->regs->dbnc_ctrl; + dbnc = readl(eint->base + ctrl_offset); + bit = MTK_EINT_DBNC_SET_EN << ((index % 4) * 8); + if ((bit & dbnc) > 0) { + ctrl_offset = (index / 4) * 4 + eint->regs->dbnc_set; + rst = MTK_EINT_DBNC_RST_BIT << ((index % 4) * 8); + writel(rst, eint->base + ctrl_offset); + } +} + +static void mtk_eint_irq_handler(struct irq_desc *desc) +{ + struct irq_chip *chip = irq_desc_get_chip(desc); + struct mtk_eint *eint = irq_desc_get_handler_data(desc); + unsigned int status, eint_num; + int offset, index, virq; + void __iomem *reg = mtk_eint_get_offset(eint, 0, eint->regs->stat); + int dual_edge, start_level, curr_level; + + chained_irq_enter(chip, desc); + for (eint_num = 0; eint_num < eint->hw->ap_num; eint_num += 32, + reg += 4) { + status = readl(reg); + while (status) { + offset = __ffs(status); + index = eint_num + offset; + virq = irq_find_mapping(eint->domain, index); + status &= ~BIT(offset); + + dual_edge = eint->dual_edge[index]; + if (dual_edge) { + /* + * Clear soft-irq in case we raised it last + * time. + */ + writel(BIT(offset), reg - eint->regs->stat + + eint->regs->soft_clr); + + start_level = + eint->gpio_xlate->get_gpio_state(eint->pctl, + index); + } + + generic_handle_irq(virq); + + if (dual_edge) { + curr_level = mtk_eint_flip_edge(eint, index); + + /* + * If level changed, we might lost one edge + * interrupt, raised it through soft-irq. + */ + if (start_level != curr_level) + writel(BIT(offset), reg - + eint->regs->stat + + eint->regs->soft_set); + } + + if (index < eint->hw->db_cnt) + mtk_eint_debounce_process(eint, index); + } + } + chained_irq_exit(chip, desc); +} + +int mtk_eint_do_suspend(struct mtk_eint *eint) +{ + mtk_eint_chip_read_mask(eint, eint->base, eint->cur_mask); + mtk_eint_chip_write_mask(eint, eint->base, eint->wake_mask); + + return 0; +} + +int mtk_eint_do_resume(struct mtk_eint *eint) +{ + mtk_eint_chip_write_mask(eint, eint->base, eint->cur_mask); + + return 0; +} + +int mtk_eint_set_debounce(struct mtk_eint *eint, unsigned long eint_num, + unsigned int debounce) +{ + int virq, eint_offset; + unsigned int set_offset, bit, clr_bit, clr_offset, rst, i, unmask, + dbnc; + static const unsigned int debounce_time[] = {500, 1000, 16000, 32000, + 64000, 128000, 256000}; + struct irq_data *d; + + virq = irq_find_mapping(eint->domain, eint_num); + eint_offset = (eint_num % 4) * 8; + d = irq_get_irq_data(virq); + + set_offset = (eint_num / 4) * 4 + eint->regs->dbnc_set; + clr_offset = (eint_num / 4) * 4 + eint->regs->dbnc_clr; + + if (!mtk_eint_can_en_debounce(eint, eint_num)) + return -EINVAL; + + dbnc = ARRAY_SIZE(debounce_time); + for (i = 0; i < ARRAY_SIZE(debounce_time); i++) { + if (debounce <= debounce_time[i]) { + dbnc = i; + break; + } + } + + if (!mtk_eint_get_mask(eint, eint_num)) { + mtk_eint_mask(d); + unmask = 1; + } else { + unmask = 0; + } + + clr_bit = 0xff << eint_offset; + writel(clr_bit, eint->base + clr_offset); + + bit = ((dbnc << MTK_EINT_DBNC_SET_DBNC_BITS) | MTK_EINT_DBNC_SET_EN) << + eint_offset; + rst = MTK_EINT_DBNC_RST_BIT << eint_offset; + writel(rst | bit, eint->base + set_offset); + + /* + * Delay a while (more than 2T) to wait for hw debounce counter reset + * work correctly. + */ + udelay(1); + if (unmask == 1) + mtk_eint_unmask(d); + + return 0; +} + +int mtk_eint_find_irq(struct mtk_eint *eint, unsigned long eint_n) +{ + int irq; + + irq = irq_find_mapping(eint->domain, eint_n); + if (!irq) + return -EINVAL; + + return irq; +} + +int mtk_eint_do_init(struct mtk_eint *eint) +{ + int i; + + /* If clients don't assign a specific regs, let's use generic one */ + if (!eint->regs) + eint->regs = &mtk_generic_eint_regs; + + eint->wake_mask = devm_kcalloc(eint->dev, eint->hw->ports, + sizeof(*eint->wake_mask), GFP_KERNEL); + if (!eint->wake_mask) + return -ENOMEM; + + eint->cur_mask = devm_kcalloc(eint->dev, eint->hw->ports, + sizeof(*eint->cur_mask), GFP_KERNEL); + if (!eint->cur_mask) + return -ENOMEM; + + eint->dual_edge = devm_kcalloc(eint->dev, eint->hw->ap_num, + sizeof(int), GFP_KERNEL); + if (!eint->dual_edge) + return -ENOMEM; + + eint->domain = irq_domain_add_linear(eint->dev->of_node, + eint->hw->ap_num, + &irq_domain_simple_ops, NULL); + if (!eint->domain) + return -ENOMEM; + + mtk_eint_hw_init(eint); + for (i = 0; i < eint->hw->ap_num; i++) { + int virq = irq_create_mapping(eint->domain, i); + + irq_set_chip_and_handler(virq, &mtk_eint_irq_chip, + handle_level_irq); + irq_set_chip_data(virq, eint); + } + + irq_set_chained_handler_and_data(eint->irq, mtk_eint_irq_handler, + eint); + + return 0; +} diff --git a/drivers/pinctrl/mediatek/mtk-eint.h b/drivers/pinctrl/mediatek/mtk-eint.h new file mode 100644 index 000000000000..55b4d5f47e77 --- /dev/null +++ b/drivers/pinctrl/mediatek/mtk-eint.h @@ -0,0 +1,107 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2014-2018 MediaTek Inc. + * + * Author: Maoguang Meng <maoguang.meng@mediatek.com> + * Sean Wang <sean.wang@mediatek.com> + * + */ +#ifndef __MTK_EINT_H +#define __MTK_EINT_H + +#include <linux/irqdomain.h> + +struct mtk_eint_regs { + unsigned int stat; + unsigned int ack; + unsigned int mask; + unsigned int mask_set; + unsigned int mask_clr; + unsigned int sens; + unsigned int sens_set; + unsigned int sens_clr; + unsigned int soft; + unsigned int soft_set; + unsigned int soft_clr; + unsigned int pol; + unsigned int pol_set; + unsigned int pol_clr; + unsigned int dom_en; + unsigned int dbnc_ctrl; + unsigned int dbnc_set; + unsigned int dbnc_clr; +}; + +struct mtk_eint_hw { + const char *name; + u8 port_mask; + u8 ports; + unsigned int ap_num; + unsigned int db_cnt; +}; + +struct mtk_eint; + +struct mtk_eint_xt { + int (*get_gpio_n)(void *data, unsigned long eint_n, + unsigned int *gpio_n, + struct gpio_chip **gpio_chip); + int (*get_gpio_state)(void *data, unsigned long eint_n); + int (*set_gpio_as_eint)(void *data, unsigned long eint_n); +}; + +struct mtk_eint { + struct device *dev; + void __iomem *base; + struct irq_domain *domain; + int irq; + + int *dual_edge; + u32 *wake_mask; + u32 *cur_mask; + + /* Used to fit into various EINT device */ + const struct mtk_eint_hw *hw; + const struct mtk_eint_regs *regs; + + /* Used to fit into various pinctrl device */ + void *pctl; + const struct mtk_eint_xt *gpio_xlate; +}; + +#if IS_ENABLED(CONFIG_EINT_MTK) +int mtk_eint_do_init(struct mtk_eint *eint); +int mtk_eint_do_suspend(struct mtk_eint *eint); +int mtk_eint_do_resume(struct mtk_eint *eint); +int mtk_eint_set_debounce(struct mtk_eint *eint, unsigned long eint_n, + unsigned int debounce); +int mtk_eint_find_irq(struct mtk_eint *eint, unsigned long eint_n); + +#else +static inline int mtk_eint_do_init(struct mtk_eint *eint) +{ + return -EOPNOTSUPP; +} + +static inline int mtk_eint_do_suspend(struct mtk_eint *eint) +{ + return -EOPNOTSUPP; +} + +static inline int mtk_eint_do_resume(struct mtk_eint *eint) +{ + return -EOPNOTSUPP; +} + +int mtk_eint_set_debounce(struct mtk_eint *eint, unsigned long eint_n, + unsigned int debounce) +{ + return -EOPNOTSUPP; +} + +int mtk_eint_find_irq(struct mtk_eint *eint, unsigned long eint_n) +{ + return -EOPNOTSUPP; +} +#endif +#endif /* __MTK_EINT_H */ diff --git a/drivers/pinctrl/mediatek/pinctrl-mt2701.c b/drivers/pinctrl/mediatek/pinctrl-mt2701.c index f86f3b379607..e0963c615686 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mt2701.c +++ b/drivers/pinctrl/mediatek/pinctrl-mt2701.c @@ -531,8 +531,14 @@ static const struct mtk_pinctrl_devdata mt2701_pinctrl_data = { .port_shf = 4, .port_mask = 0x1f, .port_align = 4, - .eint_offsets = { + .eint_hw = { .name = "mt2701_eint", + .port_mask = 6, + .ports = 6, + .ap_num = 169, + .db_cnt = 16, + }, + .eint_regs = { .stat = 0x000, .ack = 0x040, .mask = 0x080, @@ -551,11 +557,7 @@ static const struct mtk_pinctrl_devdata mt2701_pinctrl_data = { .dbnc_ctrl = 0x500, .dbnc_set = 0x600, .dbnc_clr = 0x700, - .port_mask = 6, - .ports = 6, }, - .ap_num = 169, - .db_cnt = 16, }; static int mt2701_pinctrl_probe(struct platform_device *pdev) diff --git a/drivers/pinctrl/mediatek/pinctrl-mt2712.c b/drivers/pinctrl/mediatek/pinctrl-mt2712.c index 81e11f9e70f1..02aff2802224 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mt2712.c +++ b/drivers/pinctrl/mediatek/pinctrl-mt2712.c @@ -576,8 +576,14 @@ static const struct mtk_pinctrl_devdata mt2712_pinctrl_data = { .port_shf = 4, .port_mask = 0xf, .port_align = 4, - .eint_offsets = { + .eint_hw = { .name = "mt2712_eint", + .port_mask = 0xf, + .ports = 8, + .ap_num = 229, + .db_cnt = 40, + }, + .eint_regs = { .stat = 0x000, .ack = 0x040, .mask = 0x080, @@ -596,11 +602,7 @@ static const struct mtk_pinctrl_devdata mt2712_pinctrl_data = { .dbnc_ctrl = 0x500, .dbnc_set = 0x600, .dbnc_clr = 0x700, - .port_mask = 0xf, - .ports = 8, }, - .ap_num = 229, - .db_cnt = 40, }; static int mt2712_pinctrl_probe(struct platform_device *pdev) diff --git a/drivers/pinctrl/mediatek/pinctrl-mt8127.c b/drivers/pinctrl/mediatek/pinctrl-mt8127.c index d76491574841..71f6258ea96c 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mt8127.c +++ b/drivers/pinctrl/mediatek/pinctrl-mt8127.c @@ -300,8 +300,14 @@ static const struct mtk_pinctrl_devdata mt8127_pinctrl_data = { .port_shf = 4, .port_mask = 0xf, .port_align = 4, - .eint_offsets = { + .eint_hw = { .name = "mt8127_eint", + .port_mask = 7, + .ports = 6, + .ap_num = 143, + .db_cnt = 16, + }, + .eint_regs = { .stat = 0x000, .ack = 0x040, .mask = 0x080, @@ -320,11 +326,7 @@ static const struct mtk_pinctrl_devdata mt8127_pinctrl_data = { .dbnc_ctrl = 0x500, .dbnc_set = 0x600, .dbnc_clr = 0x700, - .port_mask = 7, - .ports = 6, }, - .ap_num = 143, - .db_cnt = 16, }; static int mt8127_pinctrl_probe(struct platform_device *pdev) diff --git a/drivers/pinctrl/mediatek/pinctrl-mt8135.c b/drivers/pinctrl/mediatek/pinctrl-mt8135.c index d8c645f16f21..fdfa357d681f 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mt8135.c +++ b/drivers/pinctrl/mediatek/pinctrl-mt8135.c @@ -313,8 +313,14 @@ static const struct mtk_pinctrl_devdata mt8135_pinctrl_data = { .port_shf = 4, .port_mask = 0xf, .port_align = 4, - .eint_offsets = { + .eint_hw = { .name = "mt8135_eint", + .port_mask = 7, + .ports = 6, + .ap_num = 192, + .db_cnt = 16, + }, + .eint_regs = { .stat = 0x000, .ack = 0x040, .mask = 0x080, @@ -333,11 +339,7 @@ static const struct mtk_pinctrl_devdata mt8135_pinctrl_data = { .dbnc_ctrl = 0x500, .dbnc_set = 0x600, .dbnc_clr = 0x700, - .port_mask = 7, - .ports = 6, }, - .ap_num = 192, - .db_cnt = 16, }; static int mt8135_pinctrl_probe(struct platform_device *pdev) diff --git a/drivers/pinctrl/mediatek/pinctrl-mt8173.c b/drivers/pinctrl/mediatek/pinctrl-mt8173.c index 8bfd427b9135..1466c95fde87 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mt8173.c +++ b/drivers/pinctrl/mediatek/pinctrl-mt8173.c @@ -340,8 +340,14 @@ static const struct mtk_pinctrl_devdata mt8173_pinctrl_data = { .port_shf = 4, .port_mask = 0xf, .port_align = 4, - .eint_offsets = { + .eint_hw = { .name = "mt8173_eint", + .port_mask = 7, + .ports = 6, + .ap_num = 224, + .db_cnt = 16, + }, + .eint_regs = { .stat = 0x000, .ack = 0x040, .mask = 0x080, @@ -360,11 +366,7 @@ static const struct mtk_pinctrl_devdata mt8173_pinctrl_data = { .dbnc_ctrl = 0x500, .dbnc_set = 0x600, .dbnc_clr = 0x700, - .port_mask = 7, - .ports = 6, }, - .ap_num = 224, - .db_cnt = 16, }; static int mt8173_pinctrl_probe(struct platform_device *pdev) diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c index c3975a04d1cd..11e0d0fdf43b 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c @@ -38,6 +38,7 @@ #include "../core.h" #include "../pinconf.h" #include "../pinctrl-utils.h" +#include "mtk-eint.h" #include "pinctrl-mtk-common.h" #define MAX_GPIO_MODE_PER_REG 5 @@ -831,243 +832,38 @@ static int mtk_gpio_get(struct gpio_chip *chip, unsigned offset) static int mtk_gpio_to_irq(struct gpio_chip *chip, unsigned offset) { - const struct mtk_desc_pin *pin; struct mtk_pinctrl *pctl = gpiochip_get_data(chip); - int irq; - - pin = pctl->devdata->pins + offset; - if (pin->eint.eintnum == NO_EINT_SUPPORT) - return -EINVAL; - - irq = irq_find_mapping(pctl->domain, pin->eint.eintnum); - if (!irq) - return -EINVAL; - - return irq; -} - -static int mtk_pinctrl_irq_request_resources(struct irq_data *d) -{ - struct mtk_pinctrl *pctl = irq_data_get_irq_chip_data(d); - const struct mtk_desc_pin *pin; - int ret; - - pin = mtk_find_pin_by_eint_num(pctl, d->hwirq); - - if (!pin) { - dev_err(pctl->dev, "Can not find pin\n"); - return -EINVAL; - } - - ret = gpiochip_lock_as_irq(pctl->chip, pin->pin.number); - if (ret) { - dev_err(pctl->dev, "unable to lock HW IRQ %lu for IRQ\n", - irqd_to_hwirq(d)); - return ret; - } - - /* set mux to INT mode */ - mtk_pmx_set_mode(pctl->pctl_dev, pin->pin.number, pin->eint.eintmux); - /* set gpio direction to input */ - mtk_pmx_gpio_set_direction(pctl->pctl_dev, NULL, pin->pin.number, true); - /* set input-enable */ - mtk_pconf_set_ies_smt(pctl, pin->pin.number, 1, PIN_CONFIG_INPUT_ENABLE); - - return 0; -} - -static void mtk_pinctrl_irq_release_resources(struct irq_data *d) -{ - struct mtk_pinctrl *pctl = irq_data_get_irq_chip_data(d); - const struct mtk_desc_pin *pin; - - pin = mtk_find_pin_by_eint_num(pctl, d->hwirq); - - if (!pin) { - dev_err(pctl->dev, "Can not find pin\n"); - return; - } - - gpiochip_unlock_as_irq(pctl->chip, pin->pin.number); -} - -static void __iomem *mtk_eint_get_offset(struct mtk_pinctrl *pctl, - unsigned int eint_num, unsigned int offset) -{ - unsigned int eint_base = 0; - void __iomem *reg; - - if (eint_num >= pctl->devdata->ap_num) - eint_base = pctl->devdata->ap_num; - - reg = pctl->eint_reg_base + offset + ((eint_num - eint_base) / 32) * 4; - - return reg; -} - -/* - * mtk_can_en_debounce: Check the EINT number is able to enable debounce or not - * @eint_num: the EINT number to setmtk_pinctrl - */ -static unsigned int mtk_eint_can_en_debounce(struct mtk_pinctrl *pctl, - unsigned int eint_num) -{ - unsigned int sens; - unsigned int bit = BIT(eint_num % 32); - const struct mtk_eint_offsets *eint_offsets = - &pctl->devdata->eint_offsets; - - void __iomem *reg = mtk_eint_get_offset(pctl, eint_num, - eint_offsets->sens); - - if (readl(reg) & bit) - sens = MT_LEVEL_SENSITIVE; - else - sens = MT_EDGE_SENSITIVE; - - if ((eint_num < pctl->devdata->db_cnt) && (sens != MT_EDGE_SENSITIVE)) - return 1; - else - return 0; -} - -/* - * mtk_eint_get_mask: To get the eint mask - * @eint_num: the EINT number to get - */ -static unsigned int mtk_eint_get_mask(struct mtk_pinctrl *pctl, - unsigned int eint_num) -{ - unsigned int bit = BIT(eint_num % 32); - const struct mtk_eint_offsets *eint_offsets = - &pctl->devdata->eint_offsets; - - void __iomem *reg = mtk_eint_get_offset(pctl, eint_num, - eint_offsets->mask); - - return !!(readl(reg) & bit); -} - -static int mtk_eint_flip_edge(struct mtk_pinctrl *pctl, int hwirq) -{ - int start_level, curr_level; - unsigned int reg_offset; - const struct mtk_eint_offsets *eint_offsets = &(pctl->devdata->eint_offsets); - u32 mask = BIT(hwirq & 0x1f); - u32 port = (hwirq >> 5) & eint_offsets->port_mask; - void __iomem *reg = pctl->eint_reg_base + (port << 2); - const struct mtk_desc_pin *pin; - - pin = mtk_find_pin_by_eint_num(pctl, hwirq); - curr_level = mtk_gpio_get(pctl->chip, pin->pin.number); - do { - start_level = curr_level; - if (start_level) - reg_offset = eint_offsets->pol_clr; - else - reg_offset = eint_offsets->pol_set; - writel(mask, reg + reg_offset); - - curr_level = mtk_gpio_get(pctl->chip, pin->pin.number); - } while (start_level != curr_level); - - return start_level; -} - -static void mtk_eint_mask(struct irq_data *d) -{ - struct mtk_pinctrl *pctl = irq_data_get_irq_chip_data(d); - const struct mtk_eint_offsets *eint_offsets = - &pctl->devdata->eint_offsets; - u32 mask = BIT(d->hwirq & 0x1f); - void __iomem *reg = mtk_eint_get_offset(pctl, d->hwirq, - eint_offsets->mask_set); - - writel(mask, reg); -} - -static void mtk_eint_unmask(struct irq_data *d) -{ - struct mtk_pinctrl *pctl = irq_data_get_irq_chip_data(d); - const struct mtk_eint_offsets *eint_offsets = - &pctl->devdata->eint_offsets; - u32 mask = BIT(d->hwirq & 0x1f); - void __iomem *reg = mtk_eint_get_offset(pctl, d->hwirq, - eint_offsets->mask_clr); - - writel(mask, reg); - - if (pctl->eint_dual_edges[d->hwirq]) - mtk_eint_flip_edge(pctl, d->hwirq); -} - -static int mtk_gpio_set_debounce(struct gpio_chip *chip, unsigned offset, - unsigned debounce) -{ - struct mtk_pinctrl *pctl = dev_get_drvdata(chip->parent); - int eint_num, virq, eint_offset; - unsigned int set_offset, bit, clr_bit, clr_offset, rst, i, unmask, dbnc; - static const unsigned int debounce_time[] = {500, 1000, 16000, 32000, 64000, - 128000, 256000}; const struct mtk_desc_pin *pin; - struct irq_data *d; + unsigned long eint_n; pin = pctl->devdata->pins + offset; if (pin->eint.eintnum == NO_EINT_SUPPORT) return -EINVAL; - eint_num = pin->eint.eintnum; - virq = irq_find_mapping(pctl->domain, eint_num); - eint_offset = (eint_num % 4) * 8; - d = irq_get_irq_data(virq); - - set_offset = (eint_num / 4) * 4 + pctl->devdata->eint_offsets.dbnc_set; - clr_offset = (eint_num / 4) * 4 + pctl->devdata->eint_offsets.dbnc_clr; - if (!mtk_eint_can_en_debounce(pctl, eint_num)) - return -ENOSYS; - - dbnc = ARRAY_SIZE(debounce_time); - for (i = 0; i < ARRAY_SIZE(debounce_time); i++) { - if (debounce <= debounce_time[i]) { - dbnc = i; - break; - } - } + eint_n = pin->eint.eintnum; - if (!mtk_eint_get_mask(pctl, eint_num)) { - mtk_eint_mask(d); - unmask = 1; - } else { - unmask = 0; - } - - clr_bit = 0xff << eint_offset; - writel(clr_bit, pctl->eint_reg_base + clr_offset); - - bit = ((dbnc << EINT_DBNC_SET_DBNC_BITS) | EINT_DBNC_SET_EN) << - eint_offset; - rst = EINT_DBNC_RST_BIT << eint_offset; - writel(rst | bit, pctl->eint_reg_base + set_offset); - - /* Delay a while (more than 2T) to wait for hw debounce counter reset - work correctly */ - udelay(1); - if (unmask == 1) - mtk_eint_unmask(d); - - return 0; + return mtk_eint_find_irq(pctl->eint, eint_n); } static int mtk_gpio_set_config(struct gpio_chip *chip, unsigned offset, unsigned long config) { + struct mtk_pinctrl *pctl = gpiochip_get_data(chip); + const struct mtk_desc_pin *pin; + unsigned long eint_n; u32 debounce; if (pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE) return -ENOTSUPP; + pin = pctl->devdata->pins + offset; + if (pin->eint.eintnum == NO_EINT_SUPPORT) + return -EINVAL; + debounce = pinconf_to_config_argument(config); - return mtk_gpio_set_debounce(chip, offset, debounce); + eint_n = pin->eint.eintnum; + + return mtk_eint_set_debounce(pctl->eint, eint_n, debounce); } static const struct gpio_chip mtk_gpio_chip = { @@ -1084,117 +880,18 @@ static const struct gpio_chip mtk_gpio_chip = { .of_gpio_n_cells = 2, }; -static int mtk_eint_set_type(struct irq_data *d, - unsigned int type) -{ - struct mtk_pinctrl *pctl = irq_data_get_irq_chip_data(d); - const struct mtk_eint_offsets *eint_offsets = - &pctl->devdata->eint_offsets; - u32 mask = BIT(d->hwirq & 0x1f); - void __iomem *reg; - - if (((type & IRQ_TYPE_EDGE_BOTH) && (type & IRQ_TYPE_LEVEL_MASK)) || - ((type & IRQ_TYPE_LEVEL_MASK) == IRQ_TYPE_LEVEL_MASK)) { - dev_err(pctl->dev, "Can't configure IRQ%d (EINT%lu) for type 0x%X\n", - d->irq, d->hwirq, type); - return -EINVAL; - } - - if ((type & IRQ_TYPE_EDGE_BOTH) == IRQ_TYPE_EDGE_BOTH) - pctl->eint_dual_edges[d->hwirq] = 1; - else - pctl->eint_dual_edges[d->hwirq] = 0; - - if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_EDGE_FALLING)) { - reg = mtk_eint_get_offset(pctl, d->hwirq, - eint_offsets->pol_clr); - writel(mask, reg); - } else { - reg = mtk_eint_get_offset(pctl, d->hwirq, - eint_offsets->pol_set); - writel(mask, reg); - } - - if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) { - reg = mtk_eint_get_offset(pctl, d->hwirq, - eint_offsets->sens_clr); - writel(mask, reg); - } else { - reg = mtk_eint_get_offset(pctl, d->hwirq, - eint_offsets->sens_set); - writel(mask, reg); - } - - if (pctl->eint_dual_edges[d->hwirq]) - mtk_eint_flip_edge(pctl, d->hwirq); - - return 0; -} - -static int mtk_eint_irq_set_wake(struct irq_data *d, unsigned int on) -{ - struct mtk_pinctrl *pctl = irq_data_get_irq_chip_data(d); - int shift = d->hwirq & 0x1f; - int reg = d->hwirq >> 5; - - if (on) - pctl->wake_mask[reg] |= BIT(shift); - else - pctl->wake_mask[reg] &= ~BIT(shift); - - return 0; -} - -static void mtk_eint_chip_write_mask(const struct mtk_eint_offsets *chip, - void __iomem *eint_reg_base, u32 *buf) -{ - int port; - void __iomem *reg; - - for (port = 0; port < chip->ports; port++) { - reg = eint_reg_base + (port << 2); - writel_relaxed(~buf[port], reg + chip->mask_set); - writel_relaxed(buf[port], reg + chip->mask_clr); - } -} - -static void mtk_eint_chip_read_mask(const struct mtk_eint_offsets *chip, - void __iomem *eint_reg_base, u32 *buf) -{ - int port; - void __iomem *reg; - - for (port = 0; port < chip->ports; port++) { - reg = eint_reg_base + chip->mask + (port << 2); - buf[port] = ~readl_relaxed(reg); - /* Mask is 0 when irq is enabled, and 1 when disabled. */ - } -} - static int mtk_eint_suspend(struct device *device) { - void __iomem *reg; struct mtk_pinctrl *pctl = dev_get_drvdata(device); - const struct mtk_eint_offsets *eint_offsets = - &pctl->devdata->eint_offsets; - reg = pctl->eint_reg_base; - mtk_eint_chip_read_mask(eint_offsets, reg, pctl->cur_mask); - mtk_eint_chip_write_mask(eint_offsets, reg, pctl->wake_mask); - - return 0; + return mtk_eint_do_suspend(pctl->eint); } static int mtk_eint_resume(struct device *device) { struct mtk_pinctrl *pctl = dev_get_drvdata(device); - const struct mtk_eint_offsets *eint_offsets = - &pctl->devdata->eint_offsets; - mtk_eint_chip_write_mask(eint_offsets, - pctl->eint_reg_base, pctl->cur_mask); - - return 0; + return mtk_eint_do_resume(pctl->eint); } const struct dev_pm_ops mtk_eint_pm_ops = { @@ -1202,117 +899,6 @@ const struct dev_pm_ops mtk_eint_pm_ops = { .resume_noirq = mtk_eint_resume, }; -static void mtk_eint_ack(struct irq_data *d) -{ - struct mtk_pinctrl *pctl = irq_data_get_irq_chip_data(d); - const struct mtk_eint_offsets *eint_offsets = - &pctl->devdata->eint_offsets; - u32 mask = BIT(d->hwirq & 0x1f); - void __iomem *reg = mtk_eint_get_offset(pctl, d->hwirq, - eint_offsets->ack); - - writel(mask, reg); -} - -static struct irq_chip mtk_pinctrl_irq_chip = { - .name = "mt-eint", - .irq_disable = mtk_eint_mask, - .irq_mask = mtk_eint_mask, - .irq_unmask = mtk_eint_unmask, - .irq_ack = mtk_eint_ack, - .irq_set_type = mtk_eint_set_type, - .irq_set_wake = mtk_eint_irq_set_wake, - .irq_request_resources = mtk_pinctrl_irq_request_resources, - .irq_release_resources = mtk_pinctrl_irq_release_resources, -}; - -static unsigned int mtk_eint_init(struct mtk_pinctrl *pctl) -{ - const struct mtk_eint_offsets *eint_offsets = - &pctl->devdata->eint_offsets; - void __iomem *reg = pctl->eint_reg_base + eint_offsets->dom_en; - unsigned int i; - - for (i = 0; i < pctl->devdata->ap_num; i += 32) { - writel(0xffffffff, reg); - reg += 4; - } - return 0; -} - -static inline void -mtk_eint_debounce_process(struct mtk_pinctrl *pctl, int index) -{ - unsigned int rst, ctrl_offset; - unsigned int bit, dbnc; - const struct mtk_eint_offsets *eint_offsets = - &pctl->devdata->eint_offsets; - - ctrl_offset = (index / 4) * 4 + eint_offsets->dbnc_ctrl; - dbnc = readl(pctl->eint_reg_base + ctrl_offset); - bit = EINT_DBNC_SET_EN << ((index % 4) * 8); - if ((bit & dbnc) > 0) { - ctrl_offset = (index / 4) * 4 + eint_offsets->dbnc_set; - rst = EINT_DBNC_RST_BIT << ((index % 4) * 8); - writel(rst, pctl->eint_reg_base + ctrl_offset); - } -} - -static void mtk_eint_irq_handler(struct irq_desc *desc) -{ - struct irq_chip *chip = irq_desc_get_chip(desc); - struct mtk_pinctrl *pctl = irq_desc_get_handler_data(desc); - unsigned int status, eint_num; - int offset, index, virq; - const struct mtk_eint_offsets *eint_offsets = - &pctl->devdata->eint_offsets; - void __iomem *reg = mtk_eint_get_offset(pctl, 0, eint_offsets->stat); - int dual_edges, start_level, curr_level; - const struct mtk_desc_pin *pin; - - chained_irq_enter(chip, desc); - for (eint_num = 0; - eint_num < pctl->devdata->ap_num; - eint_num += 32, reg += 4) { - status = readl(reg); - while (status) { - offset = __ffs(status); - index = eint_num + offset; - virq = irq_find_mapping(pctl->domain, index); - status &= ~BIT(offset); - - dual_edges = pctl->eint_dual_edges[index]; - if (dual_edges) { - /* Clear soft-irq in case we raised it - last time */ - writel(BIT(offset), reg - eint_offsets->stat + - eint_offsets->soft_clr); - - pin = mtk_find_pin_by_eint_num(pctl, index); - start_level = mtk_gpio_get(pctl->chip, - pin->pin.number); - } - - generic_handle_irq(virq); - - if (dual_edges) { - curr_level = mtk_eint_flip_edge(pctl, index); - - /* If level changed, we might lost one edge - interrupt, raised it through soft-irq */ - if (start_level != curr_level) - writel(BIT(offset), reg - - eint_offsets->stat + - eint_offsets->soft_set); - } - - if (index < pctl->devdata->db_cnt) - mtk_eint_debounce_process(pctl , index); - } - } - chained_irq_exit(chip, desc); -} - static int mtk_pctrl_build_state(struct platform_device *pdev) { struct mtk_pinctrl *pctl = platform_get_drvdata(pdev); @@ -1345,6 +931,97 @@ static int mtk_pctrl_build_state(struct platform_device *pdev) return 0; } +static int +mtk_xt_get_gpio_n(void *data, unsigned long eint_n, unsigned int *gpio_n, + struct gpio_chip **gpio_chip) +{ + struct mtk_pinctrl *pctl = (struct mtk_pinctrl *)data; + const struct mtk_desc_pin *pin; + + pin = mtk_find_pin_by_eint_num(pctl, eint_n); + if (!pin) + return -EINVAL; + + *gpio_chip = pctl->chip; + *gpio_n = pin->pin.number; + + return 0; +} + +static int mtk_xt_get_gpio_state(void *data, unsigned long eint_n) +{ + struct mtk_pinctrl *pctl = (struct mtk_pinctrl *)data; + const struct mtk_desc_pin *pin; + + pin = mtk_find_pin_by_eint_num(pctl, eint_n); + if (!pin) + return -EINVAL; + + return mtk_gpio_get(pctl->chip, pin->pin.number); +} + +static int mtk_xt_set_gpio_as_eint(void *data, unsigned long eint_n) +{ + struct mtk_pinctrl *pctl = (struct mtk_pinctrl *)data; + const struct mtk_desc_pin *pin; + + pin = mtk_find_pin_by_eint_num(pctl, eint_n); + if (!pin) + return -EINVAL; + + /* set mux to INT mode */ + mtk_pmx_set_mode(pctl->pctl_dev, pin->pin.number, pin->eint.eintmux); + /* set gpio direction to input */ + mtk_pmx_gpio_set_direction(pctl->pctl_dev, NULL, pin->pin.number, + true); + /* set input-enable */ + mtk_pconf_set_ies_smt(pctl, pin->pin.number, 1, + PIN_CONFIG_INPUT_ENABLE); + + return 0; +} + +static const struct mtk_eint_xt mtk_eint_xt = { + .get_gpio_n = mtk_xt_get_gpio_n, + .get_gpio_state = mtk_xt_get_gpio_state, + .set_gpio_as_eint = mtk_xt_set_gpio_as_eint, +}; + +static int mtk_eint_init(struct mtk_pinctrl *pctl, struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + struct resource *res; + + if (!of_property_read_bool(np, "interrupt-controller")) + return -ENODEV; + + pctl->eint = devm_kzalloc(pctl->dev, sizeof(*pctl->eint), GFP_KERNEL); + if (!pctl->eint) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "Unable to get eint resource\n"); + return -ENODEV; + } + + pctl->eint->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(pctl->eint->base)) + return PTR_ERR(pctl->eint->base); + + pctl->eint->irq = irq_of_parse_and_map(np, 0); + if (!pctl->eint->irq) + return -EINVAL; + + pctl->eint->dev = &pdev->dev; + pctl->eint->regs = &pctl->devdata->eint_regs; + pctl->eint->hw = &pctl->devdata->eint_hw; + pctl->eint->pctl = pctl; + pctl->eint->gpio_xlate = &mtk_eint_xt; + + return mtk_eint_do_init(pctl->eint); +} + int mtk_pctrl_init(struct platform_device *pdev, const struct mtk_pinctrl_devdata *data, struct regmap *regmap) @@ -1353,8 +1030,7 @@ int mtk_pctrl_init(struct platform_device *pdev, struct mtk_pinctrl *pctl; struct device_node *np = pdev->dev.of_node, *node; struct property *prop; - struct resource *res; - int i, ret, irq, ports_buf; + int ret, i; pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL); if (!pctl) @@ -1441,70 +1117,10 @@ int mtk_pctrl_init(struct platform_device *pdev, goto chip_error; } - if (!of_property_read_bool(np, "interrupt-controller")) - return 0; - - /* Get EINT register base from dts. */ - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "Unable to get Pinctrl resource\n"); - ret = -EINVAL; - goto chip_error; - } - - pctl->eint_reg_base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(pctl->eint_reg_base)) { - ret = -EINVAL; - goto chip_error; - } - - ports_buf = pctl->devdata->eint_offsets.ports; - pctl->wake_mask = devm_kcalloc(&pdev->dev, ports_buf, - sizeof(*pctl->wake_mask), GFP_KERNEL); - if (!pctl->wake_mask) { - ret = -ENOMEM; - goto chip_error; - } - - pctl->cur_mask = devm_kcalloc(&pdev->dev, ports_buf, - sizeof(*pctl->cur_mask), GFP_KERNEL); - if (!pctl->cur_mask) { - ret = -ENOMEM; - goto chip_error; - } - - pctl->eint_dual_edges = devm_kcalloc(&pdev->dev, pctl->devdata->ap_num, - sizeof(int), GFP_KERNEL); - if (!pctl->eint_dual_edges) { - ret = -ENOMEM; - goto chip_error; - } - - irq = irq_of_parse_and_map(np, 0); - if (!irq) { - dev_err(&pdev->dev, "couldn't parse and map irq\n"); - ret = -EINVAL; - goto chip_error; - } - - pctl->domain = irq_domain_add_linear(np, - pctl->devdata->ap_num, &irq_domain_simple_ops, NULL); - if (!pctl->domain) { - dev_err(&pdev->dev, "Couldn't register IRQ domain\n"); - ret = -ENOMEM; + ret = mtk_eint_init(pctl, pdev); + if (ret) goto chip_error; - } - - mtk_eint_init(pctl); - for (i = 0; i < pctl->devdata->ap_num; i++) { - int virq = irq_create_mapping(pctl->domain, i); - - irq_set_chip_and_handler(virq, &mtk_pinctrl_irq_chip, - handle_level_irq); - irq_set_chip_data(virq, pctl); - } - irq_set_chained_handler_and_data(irq, mtk_eint_irq_handler, pctl); return 0; chip_error: diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.h b/drivers/pinctrl/mediatek/pinctrl-mtk-common.h index 8543bc478a1e..346e3dbe800b 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.h +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.h @@ -19,6 +19,8 @@ #include <linux/regmap.h> #include <linux/pinctrl/pinconf-generic.h> +#include "mtk-eint.h" + #define NO_EINT_SUPPORT 255 #define MT_EDGE_SENSITIVE 0 #define MT_LEVEL_SENSITIVE 1 @@ -258,9 +260,8 @@ struct mtk_pinctrl_devdata { unsigned char port_shf; unsigned char port_mask; unsigned char port_align; - struct mtk_eint_offsets eint_offsets; - unsigned int ap_num; - unsigned int db_cnt; + struct mtk_eint_hw eint_hw; + struct mtk_eint_regs eint_regs; }; struct mtk_pinctrl { @@ -274,11 +275,7 @@ struct mtk_pinctrl { const char **grp_names; struct pinctrl_dev *pctl_dev; const struct mtk_pinctrl_devdata *devdata; - void __iomem *eint_reg_base; - struct irq_domain *domain; - int *eint_dual_edges; - u32 *wake_mask; - u32 *cur_mask; + struct mtk_eint *eint; }; int mtk_pctrl_init(struct platform_device *pdev, |