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path: root/drivers/mfd/s5m-irq.c
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Diffstat (limited to 'drivers/mfd/s5m-irq.c')
-rw-r--r--drivers/mfd/s5m-irq.c495
1 files changed, 0 insertions, 495 deletions
diff --git a/drivers/mfd/s5m-irq.c b/drivers/mfd/s5m-irq.c
deleted file mode 100644
index 0236676..0000000
--- a/drivers/mfd/s5m-irq.c
+++ /dev/null
@@ -1,495 +0,0 @@
-/*
- * s5m-irq.c
- *
- * Copyright (c) 2011 Samsung Electronics Co., Ltd
- * http://www.samsung.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/device.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/mfd/s5m87xx/s5m-core.h>
-
-struct s5m_irq_data {
- int reg;
- int mask;
-};
-
-static struct s5m_irq_data s5m8767_irqs[] = {
- [S5M8767_IRQ_PWRR] = {
- .reg = 1,
- .mask = S5M8767_IRQ_PWRR_MASK,
- },
- [S5M8767_IRQ_PWRF] = {
- .reg = 1,
- .mask = S5M8767_IRQ_PWRF_MASK,
- },
- [S5M8767_IRQ_PWR1S] = {
- .reg = 1,
- .mask = S5M8767_IRQ_PWR1S_MASK,
- },
- [S5M8767_IRQ_JIGR] = {
- .reg = 1,
- .mask = S5M8767_IRQ_JIGR_MASK,
- },
- [S5M8767_IRQ_JIGF] = {
- .reg = 1,
- .mask = S5M8767_IRQ_JIGF_MASK,
- },
- [S5M8767_IRQ_LOWBAT2] = {
- .reg = 1,
- .mask = S5M8767_IRQ_LOWBAT2_MASK,
- },
- [S5M8767_IRQ_LOWBAT1] = {
- .reg = 1,
- .mask = S5M8767_IRQ_LOWBAT1_MASK,
- },
- [S5M8767_IRQ_MRB] = {
- .reg = 2,
- .mask = S5M8767_IRQ_MRB_MASK,
- },
- [S5M8767_IRQ_DVSOK2] = {
- .reg = 2,
- .mask = S5M8767_IRQ_DVSOK2_MASK,
- },
- [S5M8767_IRQ_DVSOK3] = {
- .reg = 2,
- .mask = S5M8767_IRQ_DVSOK3_MASK,
- },
- [S5M8767_IRQ_DVSOK4] = {
- .reg = 2,
- .mask = S5M8767_IRQ_DVSOK4_MASK,
- },
- [S5M8767_IRQ_RTC60S] = {
- .reg = 3,
- .mask = S5M8767_IRQ_RTC60S_MASK,
- },
- [S5M8767_IRQ_RTCA1] = {
- .reg = 3,
- .mask = S5M8767_IRQ_RTCA1_MASK,
- },
- [S5M8767_IRQ_RTCA2] = {
- .reg = 3,
- .mask = S5M8767_IRQ_RTCA2_MASK,
- },
- [S5M8767_IRQ_SMPL] = {
- .reg = 3,
- .mask = S5M8767_IRQ_SMPL_MASK,
- },
- [S5M8767_IRQ_RTC1S] = {
- .reg = 3,
- .mask = S5M8767_IRQ_RTC1S_MASK,
- },
- [S5M8767_IRQ_WTSR] = {
- .reg = 3,
- .mask = S5M8767_IRQ_WTSR_MASK,
- },
-};
-
-static struct s5m_irq_data s5m8763_irqs[] = {
- [S5M8763_IRQ_DCINF] = {
- .reg = 1,
- .mask = S5M8763_IRQ_DCINF_MASK,
- },
- [S5M8763_IRQ_DCINR] = {
- .reg = 1,
- .mask = S5M8763_IRQ_DCINR_MASK,
- },
- [S5M8763_IRQ_JIGF] = {
- .reg = 1,
- .mask = S5M8763_IRQ_JIGF_MASK,
- },
- [S5M8763_IRQ_JIGR] = {
- .reg = 1,
- .mask = S5M8763_IRQ_JIGR_MASK,
- },
- [S5M8763_IRQ_PWRONF] = {
- .reg = 1,
- .mask = S5M8763_IRQ_PWRONF_MASK,
- },
- [S5M8763_IRQ_PWRONR] = {
- .reg = 1,
- .mask = S5M8763_IRQ_PWRONR_MASK,
- },
- [S5M8763_IRQ_WTSREVNT] = {
- .reg = 2,
- .mask = S5M8763_IRQ_WTSREVNT_MASK,
- },
- [S5M8763_IRQ_SMPLEVNT] = {
- .reg = 2,
- .mask = S5M8763_IRQ_SMPLEVNT_MASK,
- },
- [S5M8763_IRQ_ALARM1] = {
- .reg = 2,
- .mask = S5M8763_IRQ_ALARM1_MASK,
- },
- [S5M8763_IRQ_ALARM0] = {
- .reg = 2,
- .mask = S5M8763_IRQ_ALARM0_MASK,
- },
- [S5M8763_IRQ_ONKEY1S] = {
- .reg = 3,
- .mask = S5M8763_IRQ_ONKEY1S_MASK,
- },
- [S5M8763_IRQ_TOPOFFR] = {
- .reg = 3,
- .mask = S5M8763_IRQ_TOPOFFR_MASK,
- },
- [S5M8763_IRQ_DCINOVPR] = {
- .reg = 3,
- .mask = S5M8763_IRQ_DCINOVPR_MASK,
- },
- [S5M8763_IRQ_CHGRSTF] = {
- .reg = 3,
- .mask = S5M8763_IRQ_CHGRSTF_MASK,
- },
- [S5M8763_IRQ_DONER] = {
- .reg = 3,
- .mask = S5M8763_IRQ_DONER_MASK,
- },
- [S5M8763_IRQ_CHGFAULT] = {
- .reg = 3,
- .mask = S5M8763_IRQ_CHGFAULT_MASK,
- },
- [S5M8763_IRQ_LOBAT1] = {
- .reg = 4,
- .mask = S5M8763_IRQ_LOBAT1_MASK,
- },
- [S5M8763_IRQ_LOBAT2] = {
- .reg = 4,
- .mask = S5M8763_IRQ_LOBAT2_MASK,
- },
-};
-
-static inline struct s5m_irq_data *
-irq_to_s5m8767_irq(struct s5m87xx_dev *s5m87xx, int irq)
-{
- return &s5m8767_irqs[irq - s5m87xx->irq_base];
-}
-
-static void s5m8767_irq_lock(struct irq_data *data)
-{
- struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
-
- mutex_lock(&s5m87xx->irqlock);
-}
-
-static void s5m8767_irq_sync_unlock(struct irq_data *data)
-{
- struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
- int i;
-
- for (i = 0; i < ARRAY_SIZE(s5m87xx->irq_masks_cur); i++) {
- if (s5m87xx->irq_masks_cur[i] != s5m87xx->irq_masks_cache[i]) {
- s5m87xx->irq_masks_cache[i] = s5m87xx->irq_masks_cur[i];
- s5m_reg_write(s5m87xx, S5M8767_REG_INT1M + i,
- s5m87xx->irq_masks_cur[i]);
- }
- }
-
- mutex_unlock(&s5m87xx->irqlock);
-}
-
-static void s5m8767_irq_unmask(struct irq_data *data)
-{
- struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
- struct s5m_irq_data *irq_data = irq_to_s5m8767_irq(s5m87xx,
- data->irq);
-
- s5m87xx->irq_masks_cur[irq_data->reg - 1] &= ~irq_data->mask;
-}
-
-static void s5m8767_irq_mask(struct irq_data *data)
-{
- struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
- struct s5m_irq_data *irq_data = irq_to_s5m8767_irq(s5m87xx,
- data->irq);
-
- s5m87xx->irq_masks_cur[irq_data->reg - 1] |= irq_data->mask;
-}
-
-static struct irq_chip s5m8767_irq_chip = {
- .name = "s5m8767",
- .irq_bus_lock = s5m8767_irq_lock,
- .irq_bus_sync_unlock = s5m8767_irq_sync_unlock,
- .irq_mask = s5m8767_irq_mask,
- .irq_unmask = s5m8767_irq_unmask,
-};
-
-static inline struct s5m_irq_data *
-irq_to_s5m8763_irq(struct s5m87xx_dev *s5m87xx, int irq)
-{
- return &s5m8763_irqs[irq - s5m87xx->irq_base];
-}
-
-static void s5m8763_irq_lock(struct irq_data *data)
-{
- struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
-
- mutex_lock(&s5m87xx->irqlock);
-}
-
-static void s5m8763_irq_sync_unlock(struct irq_data *data)
-{
- struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
- int i;
-
- for (i = 0; i < ARRAY_SIZE(s5m87xx->irq_masks_cur); i++) {
- if (s5m87xx->irq_masks_cur[i] != s5m87xx->irq_masks_cache[i]) {
- s5m87xx->irq_masks_cache[i] = s5m87xx->irq_masks_cur[i];
- s5m_reg_write(s5m87xx, S5M8763_REG_IRQM1 + i,
- s5m87xx->irq_masks_cur[i]);
- }
- }
-
- mutex_unlock(&s5m87xx->irqlock);
-}
-
-static void s5m8763_irq_unmask(struct irq_data *data)
-{
- struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
- struct s5m_irq_data *irq_data = irq_to_s5m8763_irq(s5m87xx,
- data->irq);
-
- s5m87xx->irq_masks_cur[irq_data->reg - 1] &= ~irq_data->mask;
-}
-
-static void s5m8763_irq_mask(struct irq_data *data)
-{
- struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
- struct s5m_irq_data *irq_data = irq_to_s5m8763_irq(s5m87xx,
- data->irq);
-
- s5m87xx->irq_masks_cur[irq_data->reg - 1] |= irq_data->mask;
-}
-
-static struct irq_chip s5m8763_irq_chip = {
- .name = "s5m8763",
- .irq_bus_lock = s5m8763_irq_lock,
- .irq_bus_sync_unlock = s5m8763_irq_sync_unlock,
- .irq_mask = s5m8763_irq_mask,
- .irq_unmask = s5m8763_irq_unmask,
-};
-
-
-static irqreturn_t s5m8767_irq_thread(int irq, void *data)
-{
- struct s5m87xx_dev *s5m87xx = data;
- u8 irq_reg[NUM_IRQ_REGS-1];
- int ret;
- int i;
-
-
- ret = s5m_bulk_read(s5m87xx, S5M8767_REG_INT1,
- NUM_IRQ_REGS - 1, irq_reg);
- if (ret < 0) {
- dev_err(s5m87xx->dev, "Failed to read interrupt register: %d\n",
- ret);
- return IRQ_NONE;
- }
-
- for (i = 0; i < NUM_IRQ_REGS - 1; i++)
- irq_reg[i] &= ~s5m87xx->irq_masks_cur[i];
-
- for (i = 0; i < S5M8767_IRQ_NR; i++) {
- if (irq_reg[s5m8767_irqs[i].reg - 1] & s5m8767_irqs[i].mask)
- handle_nested_irq(s5m87xx->irq_base + i);
- }
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t s5m8763_irq_thread(int irq, void *data)
-{
- struct s5m87xx_dev *s5m87xx = data;
- u8 irq_reg[NUM_IRQ_REGS];
- int ret;
- int i;
-
- ret = s5m_bulk_read(s5m87xx, S5M8763_REG_IRQ1,
- NUM_IRQ_REGS, irq_reg);
- if (ret < 0) {
- dev_err(s5m87xx->dev, "Failed to read interrupt register: %d\n",
- ret);
- return IRQ_NONE;
- }
-
- for (i = 0; i < NUM_IRQ_REGS; i++)
- irq_reg[i] &= ~s5m87xx->irq_masks_cur[i];
-
- for (i = 0; i < S5M8763_IRQ_NR; i++) {
- if (irq_reg[s5m8763_irqs[i].reg - 1] & s5m8763_irqs[i].mask)
- handle_nested_irq(s5m87xx->irq_base + i);
- }
-
- return IRQ_HANDLED;
-}
-
-int s5m_irq_resume(struct s5m87xx_dev *s5m87xx)
-{
- if (s5m87xx->irq && s5m87xx->irq_base){
- switch (s5m87xx->device_type) {
- case S5M8763X:
- s5m8763_irq_thread(s5m87xx->irq_base, s5m87xx);
- break;
- case S5M8767X:
- s5m8767_irq_thread(s5m87xx->irq_base, s5m87xx);
- break;
- default:
- dev_err(s5m87xx->dev,
- "Unknown device type %d\n",
- s5m87xx->device_type);
- return -EINVAL;
-
- }
- }
- return 0;
-}
-
-int s5m_irq_init(struct s5m87xx_dev *s5m87xx)
-{
- int i;
- int cur_irq;
- int ret = 0;
- int type = s5m87xx->device_type;
-
- if (!s5m87xx->irq) {
- dev_warn(s5m87xx->dev,
- "No interrupt specified, no interrupts\n");
- s5m87xx->irq_base = 0;
- return 0;
- }
-
- if (!s5m87xx->irq_base) {
- dev_err(s5m87xx->dev,
- "No interrupt base specified, no interrupts\n");
- return 0;
- }
-
- mutex_init(&s5m87xx->irqlock);
-
- switch (type) {
- case S5M8763X:
- for (i = 0; i < NUM_IRQ_REGS; i++) {
- s5m87xx->irq_masks_cur[i] = 0xff;
- s5m87xx->irq_masks_cache[i] = 0xff;
- s5m_reg_write(s5m87xx, S5M8763_REG_IRQM1 + i,
- 0xff);
- }
-
- s5m_reg_write(s5m87xx, S5M8763_REG_STATUSM1, 0xff);
- s5m_reg_write(s5m87xx, S5M8763_REG_STATUSM2, 0xff);
-
- for (i = 0; i < S5M8763_IRQ_NR; i++) {
- cur_irq = i + s5m87xx->irq_base;
- irq_set_chip_data(cur_irq, s5m87xx);
- irq_set_chip_and_handler(cur_irq, &s5m8763_irq_chip,
- handle_edge_irq);
- irq_set_nested_thread(cur_irq, 1);
-#ifdef CONFIG_ARM
- set_irq_flags(cur_irq, IRQF_VALID);
-#else
- irq_set_noprobe(cur_irq);
-#endif
- }
-
- ret = request_threaded_irq(s5m87xx->irq, NULL,
- s5m8763_irq_thread,
- IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
- "s5m87xx-irq", s5m87xx);
- if (ret) {
- dev_err(s5m87xx->dev, "Failed to request IRQ %d: %d\n",
- s5m87xx->irq, ret);
- return ret;
- }
- break;
- case S5M8767X:
- for (i = 0; i < NUM_IRQ_REGS - 1; i++) {
- s5m87xx->irq_masks_cur[i] = 0xff;
- s5m87xx->irq_masks_cache[i] = 0xff;
- s5m_reg_write(s5m87xx, S5M8767_REG_INT1M + i,
- 0xff);
- }
- for (i = 0; i < S5M8767_IRQ_NR; i++) {
- cur_irq = i + s5m87xx->irq_base;
- irq_set_chip_data(cur_irq, s5m87xx);
- if (ret) {
- dev_err(s5m87xx->dev,
- "Failed to irq_set_chip_data %d: %d\n",
- s5m87xx->irq, ret);
- return ret;
- }
-
- irq_set_chip_and_handler(cur_irq, &s5m8767_irq_chip,
- handle_edge_irq);
- irq_set_nested_thread(cur_irq, 1);
-#ifdef CONFIG_ARM
- set_irq_flags(cur_irq, IRQF_VALID);
-#else
- irq_set_noprobe(cur_irq);
-#endif
- }
-
- ret = request_threaded_irq(s5m87xx->irq, NULL,
- s5m8767_irq_thread,
- IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
- "s5m87xx-irq", s5m87xx);
- if (ret) {
- dev_err(s5m87xx->dev, "Failed to request IRQ %d: %d\n",
- s5m87xx->irq, ret);
- return ret;
- }
- break;
- default:
- dev_err(s5m87xx->dev,
- "Unknown device type %d\n", s5m87xx->device_type);
- return -EINVAL;
- }
-
- if (!s5m87xx->ono)
- return 0;
-
- switch (type) {
- case S5M8763X:
- ret = request_threaded_irq(s5m87xx->ono, NULL,
- s5m8763_irq_thread,
- IRQF_TRIGGER_FALLING |
- IRQF_TRIGGER_RISING |
- IRQF_ONESHOT, "s5m87xx-ono",
- s5m87xx);
- break;
- case S5M8767X:
- ret = request_threaded_irq(s5m87xx->ono, NULL,
- s5m8767_irq_thread,
- IRQF_TRIGGER_FALLING |
- IRQF_TRIGGER_RISING |
- IRQF_ONESHOT, "s5m87xx-ono", s5m87xx);
- break;
- default:
- ret = -EINVAL;
- break;
- }
-
- if (ret) {
- dev_err(s5m87xx->dev, "Failed to request IRQ %d: %d\n",
- s5m87xx->ono, ret);
- return ret;
- }
-
- return 0;
-}
-
-void s5m_irq_exit(struct s5m87xx_dev *s5m87xx)
-{
- if (s5m87xx->ono)
- free_irq(s5m87xx->ono, s5m87xx);
-
- if (s5m87xx->irq)
- free_irq(s5m87xx->irq, s5m87xx);
-}
generated by cgit v0.10.2 at 2024-11-14 11:07:57 (GMT)