Release 4.11 drivers/pinctrl/samsung/pinctrl-s3c64xx.c
/*
* S3C64xx specific support for pinctrl-samsung driver.
*
* Copyright (c) 2013 Tomasz Figa <tomasz.figa@gmail.com>
*
* Based on pinctrl-exynos.c, please see the file for original copyrights.
*
* 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.
*
* This file contains the Samsung S3C64xx specific information required by the
* the Samsung pinctrl/gpiolib driver. It also includes the implementation of
* external gpio and wakeup interrupt support.
*/
#include <linux/module.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/irqdomain.h>
#include <linux/irq.h>
#include <linux/of_irq.h>
#include <linux/io.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/slab.h>
#include <linux/err.h>
#include "pinctrl-samsung.h"
#define NUM_EINT0 28
#define NUM_EINT0_IRQ 4
#define EINT_MAX_PER_REG 16
#define EINT_MAX_PER_GROUP 16
/* External GPIO and wakeup interrupt related definitions */
#define SVC_GROUP_SHIFT 4
#define SVC_GROUP_MASK 0xf
#define SVC_NUM_MASK 0xf
#define SVC_GROUP(x) ((x >> SVC_GROUP_SHIFT) & \
SVC_GROUP_MASK)
#define EINT12CON_REG 0x200
#define EINT12MASK_REG 0x240
#define EINT12PEND_REG 0x260
#define EINT_OFFS(i) ((i) % (2 * EINT_MAX_PER_GROUP))
#define EINT_GROUP(i) ((i) / EINT_MAX_PER_GROUP)
#define EINT_REG(g) (4 * ((g) / 2))
#define EINTCON_REG(i) (EINT12CON_REG + EINT_REG(EINT_GROUP(i)))
#define EINTMASK_REG(i) (EINT12MASK_REG + EINT_REG(EINT_GROUP(i)))
#define EINTPEND_REG(i) (EINT12PEND_REG + EINT_REG(EINT_GROUP(i)))
#define SERVICE_REG 0x284
#define SERVICEPEND_REG 0x288
#define EINT0CON0_REG 0x900
#define EINT0MASK_REG 0x920
#define EINT0PEND_REG 0x924
/* S3C64xx specific external interrupt trigger types */
#define EINT_LEVEL_LOW 0
#define EINT_LEVEL_HIGH 1
#define EINT_EDGE_FALLING 2
#define EINT_EDGE_RISING 4
#define EINT_EDGE_BOTH 6
#define EINT_CON_MASK 0xF
#define EINT_CON_LEN 4
static const struct samsung_pin_bank_type bank_type_4bit_off = {
.fld_width = { 4, 1, 2, 0, 2, 2, },
.reg_offset = { 0x00, 0x04, 0x08, 0, 0x0c, 0x10, },
};
static const struct samsung_pin_bank_type bank_type_4bit_alive = {
.fld_width = { 4, 1, 2, },
.reg_offset = { 0x00, 0x04, 0x08, },
};
static const struct samsung_pin_bank_type bank_type_4bit2_off = {
.fld_width = { 4, 1, 2, 0, 2, 2, },
.reg_offset = { 0x00, 0x08, 0x0c, 0, 0x10, 0x14, },
};
static const struct samsung_pin_bank_type bank_type_4bit2_alive = {
.fld_width = { 4, 1, 2, },
.reg_offset = { 0x00, 0x08, 0x0c, },
};
static const struct samsung_pin_bank_type bank_type_2bit_off = {
.fld_width = { 2, 1, 2, 0, 2, 2, },
.reg_offset = { 0x00, 0x04, 0x08, 0, 0x0c, 0x10, },
};
static const struct samsung_pin_bank_type bank_type_2bit_alive = {
.fld_width = { 2, 1, 2, },
.reg_offset = { 0x00, 0x04, 0x08, },
};
#define PIN_BANK_4BIT(pins, reg, id) \
{ \
.type = &bank_type_4bit_off, \
.pctl_offset = reg, \
.nr_pins = pins, \
.eint_type = EINT_TYPE_NONE, \
.name = id \
}
#define PIN_BANK_4BIT_EINTG(pins, reg, id, eoffs) \
{ \
.type = &bank_type_4bit_off, \
.pctl_offset = reg, \
.nr_pins = pins, \
.eint_type = EINT_TYPE_GPIO, \
.eint_func = 7, \
.eint_mask = (1 << (pins)) - 1, \
.eint_offset = eoffs, \
.name = id \
}
#define PIN_BANK_4BIT_EINTW(pins, reg, id, eoffs, emask) \
{ \
.type = &bank_type_4bit_alive,\
.pctl_offset = reg, \
.nr_pins = pins, \
.eint_type = EINT_TYPE_WKUP, \
.eint_func = 3, \
.eint_mask = emask, \
.eint_offset = eoffs, \
.name = id \
}
#define PIN_BANK_4BIT2_EINTG(pins, reg, id, eoffs) \
{ \
.type = &bank_type_4bit2_off, \
.pctl_offset = reg, \
.nr_pins = pins, \
.eint_type = EINT_TYPE_GPIO, \
.eint_func = 7, \
.eint_mask = (1 << (pins)) - 1, \
.eint_offset = eoffs, \
.name = id \
}
#define PIN_BANK_4BIT2_EINTW(pins, reg, id, eoffs, emask) \
{ \
.type = &bank_type_4bit2_alive,\
.pctl_offset = reg, \
.nr_pins = pins, \
.eint_type = EINT_TYPE_WKUP, \
.eint_func = 3, \
.eint_mask = emask, \
.eint_offset = eoffs, \
.name = id \
}
#define PIN_BANK_4BIT2_ALIVE(pins, reg, id) \
{ \
.type = &bank_type_4bit2_alive,\
.pctl_offset = reg, \
.nr_pins = pins, \
.eint_type = EINT_TYPE_NONE, \
.name = id \
}
#define PIN_BANK_2BIT(pins, reg, id) \
{ \
.type = &bank_type_2bit_off, \
.pctl_offset = reg, \
.nr_pins = pins, \
.eint_type = EINT_TYPE_NONE, \
.name = id \
}
#define PIN_BANK_2BIT_EINTG(pins, reg, id, eoffs, emask) \
{ \
.type = &bank_type_2bit_off, \
.pctl_offset = reg, \
.nr_pins = pins, \
.eint_type = EINT_TYPE_GPIO, \
.eint_func = 3, \
.eint_mask = emask, \
.eint_offset = eoffs, \
.name = id \
}
#define PIN_BANK_2BIT_EINTW(pins, reg, id, eoffs) \
{ \
.type = &bank_type_2bit_alive,\
.pctl_offset = reg, \
.nr_pins = pins, \
.eint_type = EINT_TYPE_WKUP, \
.eint_func = 2, \
.eint_mask = (1 << (pins)) - 1, \
.eint_offset = eoffs, \
.name = id \
}
/**
* struct s3c64xx_eint0_data: EINT0 common data
* @drvdata: pin controller driver data
* @domains: IRQ domains of particular EINT0 interrupts
* @pins: pin offsets inside of banks of particular EINT0 interrupts
*/
struct s3c64xx_eint0_data {
struct samsung_pinctrl_drv_data *drvdata;
struct irq_domain *domains[NUM_EINT0];
u8 pins[NUM_EINT0];
};
/**
* struct s3c64xx_eint0_domain_data: EINT0 per-domain data
* @bank: pin bank related to the domain
* @eints: EINT0 interrupts related to the domain
*/
struct s3c64xx_eint0_domain_data {
struct samsung_pin_bank *bank;
u8 eints[];
};
/**
* struct s3c64xx_eint_gpio_data: GPIO EINT data
* @drvdata: pin controller driver data
* @domains: array of domains related to EINT interrupt groups
*/
struct s3c64xx_eint_gpio_data {
struct samsung_pinctrl_drv_data *drvdata;
struct irq_domain *domains[];
};
/*
* Common functions for S3C64xx EINT configuration
*/
static int s3c64xx_irq_get_trigger(unsigned int type)
{
int trigger;
switch (type) {
case IRQ_TYPE_EDGE_RISING:
trigger = EINT_EDGE_RISING;
break;
case IRQ_TYPE_EDGE_FALLING:
trigger = EINT_EDGE_FALLING;
break;
case IRQ_TYPE_EDGE_BOTH:
trigger = EINT_EDGE_BOTH;
break;
case IRQ_TYPE_LEVEL_HIGH:
trigger = EINT_LEVEL_HIGH;
break;
case IRQ_TYPE_LEVEL_LOW:
trigger = EINT_LEVEL_LOW;
break;
default:
return -EINVAL;
}
return trigger;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 67 | 100.00% | 1 | 100.00% |
| Total | 67 | 100.00% | 1 | 100.00% |
static void s3c64xx_irq_set_handler(struct irq_data *d, unsigned int type)
{
/* Edge- and level-triggered interrupts need different handlers */
if (type & IRQ_TYPE_EDGE_BOTH)
irq_set_handler_locked(d, handle_edge_irq);
else
irq_set_handler_locked(d, handle_level_irq);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 29 | 78.38% | 1 | 50.00% |
| Thomas Gleixner | 8 | 21.62% | 1 | 50.00% |
| Total | 37 | 100.00% | 2 | 100.00% |
static void s3c64xx_irq_set_function(struct samsung_pinctrl_drv_data *d,
struct samsung_pin_bank *bank, int pin)
{
const struct samsung_pin_bank_type *bank_type = bank->type;
unsigned long flags;
void __iomem *reg;
u8 shift;
u32 mask;
u32 val;
/* Make sure that pin is configured as interrupt */
reg = bank->pctl_base + bank->pctl_offset;
shift = pin;
if (bank_type->fld_width[PINCFG_TYPE_FUNC] * shift >= 32) {
/* 4-bit bank type with 2 con regs */
reg += 4;
shift -= 8;
}
shift = shift * bank_type->fld_width[PINCFG_TYPE_FUNC];
mask = (1 << bank_type->fld_width[PINCFG_TYPE_FUNC]) - 1;
spin_lock_irqsave(&bank->slock, flags);
val = readl(reg);
val &= ~(mask << shift);
val |= bank->eint_func << shift;
writel(val, reg);
spin_unlock_irqrestore(&bank->slock, flags);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 161 | 98.77% | 2 | 66.67% |
| Chanwoo Choi | 2 | 1.23% | 1 | 33.33% |
| Total | 163 | 100.00% | 3 | 100.00% |
/*
* Functions for EINT GPIO configuration (EINT groups 1-9)
*/
static inline void s3c64xx_gpio_irq_set_mask(struct irq_data *irqd, bool mask)
{
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
unsigned char index = EINT_OFFS(bank->eint_offset) + irqd->hwirq;
void __iomem *reg = bank->eint_base + EINTMASK_REG(bank->eint_offset);
u32 val;
val = readl(reg);
if (mask)
val |= 1 << index;
else
val &= ~(1 << index);
writel(val, reg);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 91 | 97.85% | 1 | 50.00% |
| Chanwoo Choi | 2 | 2.15% | 1 | 50.00% |
| Total | 93 | 100.00% | 2 | 100.00% |
static void s3c64xx_gpio_irq_unmask(struct irq_data *irqd)
{
s3c64xx_gpio_irq_set_mask(irqd, false);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 18 | 100.00% | 1 | 100.00% |
| Total | 18 | 100.00% | 1 | 100.00% |
static void s3c64xx_gpio_irq_mask(struct irq_data *irqd)
{
s3c64xx_gpio_irq_set_mask(irqd, true);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 18 | 100.00% | 1 | 100.00% |
| Total | 18 | 100.00% | 1 | 100.00% |
static void s3c64xx_gpio_irq_ack(struct irq_data *irqd)
{
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
unsigned char index = EINT_OFFS(bank->eint_offset) + irqd->hwirq;
void __iomem *reg = bank->eint_base + EINTPEND_REG(bank->eint_offset);
writel(1 << index, reg);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 59 | 96.72% | 1 | 50.00% |
| Chanwoo Choi | 2 | 3.28% | 1 | 50.00% |
| Total | 61 | 100.00% | 2 | 100.00% |
static int s3c64xx_gpio_irq_set_type(struct irq_data *irqd, unsigned int type)
{
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
struct samsung_pinctrl_drv_data *d = bank->drvdata;
void __iomem *reg;
int trigger;
u8 shift;
u32 val;
trigger = s3c64xx_irq_get_trigger(type);
if (trigger < 0) {
pr_err("unsupported external interrupt type\n");
return -EINVAL;
}
s3c64xx_irq_set_handler(irqd, type);
/* Set up interrupt trigger */
reg = bank->eint_base + EINTCON_REG(bank->eint_offset);
shift = EINT_OFFS(bank->eint_offset) + irqd->hwirq;
shift = 4 * (shift / 4); /* 4 EINTs per trigger selector */
val = readl(reg);
val &= ~(EINT_CON_MASK << shift);
val |= trigger << shift;
writel(val, reg);
s3c64xx_irq_set_function(d, bank, irqd->hwirq);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 158 | 98.75% | 1 | 50.00% |
| Chanwoo Choi | 2 | 1.25% | 1 | 50.00% |
| Total | 160 | 100.00% | 2 | 100.00% |
/*
* irq_chip for gpio interrupts.
*/
static struct irq_chip s3c64xx_gpio_irq_chip = {
.name = "GPIO",
.irq_unmask = s3c64xx_gpio_irq_unmask,
.irq_mask = s3c64xx_gpio_irq_mask,
.irq_ack = s3c64xx_gpio_irq_ack,
.irq_set_type = s3c64xx_gpio_irq_set_type,
};
static int s3c64xx_gpio_irq_map(struct irq_domain *h, unsigned int virq,
irq_hw_number_t hw)
{
struct samsung_pin_bank *bank = h->host_data;
if (!(bank->eint_mask & (1 << hw)))
return -EINVAL;
irq_set_chip_and_handler(virq,
&s3c64xx_gpio_irq_chip, handle_level_irq);
irq_set_chip_data(virq, bank);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 66 | 100.00% | 1 | 100.00% |
| Total | 66 | 100.00% | 1 | 100.00% |
/*
* irq domain callbacks for external gpio interrupt controller.
*/
static const struct irq_domain_ops s3c64xx_gpio_irqd_ops = {
.map = s3c64xx_gpio_irq_map,
.xlate = irq_domain_xlate_twocell,
};
static void s3c64xx_eint_gpio_irq(struct irq_desc *desc)
{
struct irq_chip *chip = irq_desc_get_chip(desc);
struct s3c64xx_eint_gpio_data *data = irq_desc_get_handler_data(desc);
struct irq_data *irqd = irq_desc_get_irq_data(desc);
struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
chained_irq_enter(chip, desc);
do {
unsigned int svc;
unsigned int group;
unsigned int pin;
unsigned int virq;
svc = readl(bank->eint_base + SERVICE_REG);
group = SVC_GROUP(svc);
pin = svc & SVC_NUM_MASK;
if (!group)
break;
/* Group 1 is used for two pin banks */
if (group == 1) {
if (pin < 8)
group = 0;
else
pin -= 8;
}
virq = irq_linear_revmap(data->domains[group], pin);
/*
* Something must be really wrong if an unmapped EINT
* was unmasked...
*/
BUG_ON(!virq);
generic_handle_irq(virq);
} while (1);
chained_irq_exit(chip, desc);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 147 | 86.98% | 1 | 33.33% |
| Chanwoo Choi | 18 | 10.65% | 1 | 33.33% |
| Jiang Liu | 4 | 2.37% | 1 | 33.33% |
| Total | 169 | 100.00% | 3 | 100.00% |
/**
* s3c64xx_eint_gpio_init() - setup handling of external gpio interrupts.
* @d: driver data of samsung pinctrl driver.
*/
static int s3c64xx_eint_gpio_init(struct samsung_pinctrl_drv_data *d)
{
struct s3c64xx_eint_gpio_data *data;
struct samsung_pin_bank *bank;
struct device *dev = d->dev;
unsigned int nr_domains;
unsigned int i;
if (!d->irq) {
dev_err(dev, "irq number not available\n");
return -EINVAL;
}
nr_domains = 0;
bank = d->pin_banks;
for (i = 0; i < d->nr_banks; ++i, ++bank) {
unsigned int nr_eints;
unsigned int mask;
if (bank->eint_type != EINT_TYPE_GPIO)
continue;
mask = bank->eint_mask;
nr_eints = fls(mask);
bank->irq_domain = irq_domain_add_linear(bank->of_node,
nr_eints, &s3c64xx_gpio_irqd_ops, bank);
if (!bank->irq_domain) {
dev_err(dev, "gpio irq domain add failed\n");
return -ENXIO;
}
++nr_domains;
}
data = devm_kzalloc(dev, sizeof(*data)
+ nr_domains * sizeof(*data->domains), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->drvdata = d;
bank = d->pin_banks;
nr_domains = 0;
for (i = 0; i < d->nr_banks; ++i, ++bank) {
if (bank->eint_type != EINT_TYPE_GPIO)
continue;
data->domains[nr_domains++] = bank->irq_domain;
}
irq_set_chained_handler_and_data(d->irq, s3c64xx_eint_gpio_irq, data);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 263 | 99.62% | 1 | 50.00% |
| Thomas Gleixner | 1 | 0.38% | 1 | 50.00% |
| Total | 264 | 100.00% | 2 | 100.00% |
/*
* Functions for configuration of EINT0 wake-up interrupts
*/
static inline void s3c64xx_eint0_irq_set_mask(struct irq_data *irqd, bool mask)
{
struct s3c64xx_eint0_domain_data *ddata =
irq_data_get_irq_chip_data(irqd);
struct samsung_pin_bank *bank = ddata->bank;
u32 val;
val = readl(bank->eint_base + EINT0MASK_REG);
if (mask)
val |= 1 << ddata->eints[irqd->hwirq];
else
val &= ~(1 << ddata->eints[irqd->hwirq]);
writel(val, bank->eint_base + EINT0MASK_REG);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 87 | 93.55% | 1 | 50.00% |
| Chanwoo Choi | 6 | 6.45% | 1 | 50.00% |
| Total | 93 | 100.00% | 2 | 100.00% |
static void s3c64xx_eint0_irq_unmask(struct irq_data *irqd)
{
s3c64xx_eint0_irq_set_mask(irqd, false);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 18 | 100.00% | 1 | 100.00% |
| Total | 18 | 100.00% | 1 | 100.00% |
static void s3c64xx_eint0_irq_mask(struct irq_data *irqd)
{
s3c64xx_eint0_irq_set_mask(irqd, true);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 18 | 100.00% | 1 | 100.00% |
| Total | 18 | 100.00% | 1 | 100.00% |
static void s3c64xx_eint0_irq_ack(struct irq_data *irqd)
{
struct s3c64xx_eint0_domain_data *ddata =
irq_data_get_irq_chip_data(irqd);
struct samsung_pin_bank *bank = ddata->bank;
writel(1 << ddata->eints[irqd->hwirq],
bank->eint_base + EINT0PEND_REG);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 46 | 92.00% | 1 | 50.00% |
| Chanwoo Choi | 4 | 8.00% | 1 | 50.00% |
| Total | 50 | 100.00% | 2 | 100.00% |
static int s3c64xx_eint0_irq_set_type(struct irq_data *irqd, unsigned int type)
{
struct s3c64xx_eint0_domain_data *ddata =
irq_data_get_irq_chip_data(irqd);
struct samsung_pin_bank *bank = ddata->bank;
struct samsung_pinctrl_drv_data *d = ddata->bank->drvdata;
void __iomem *reg;
int trigger;
u8 shift;
u32 val;
trigger = s3c64xx_irq_get_trigger(type);
if (trigger < 0) {
pr_err("unsupported external interrupt type\n");
return -EINVAL;
}
s3c64xx_irq_set_handler(irqd, type);
/* Set up interrupt trigger */
reg = bank->eint_base + EINT0CON0_REG;
shift = ddata->eints[irqd->hwirq];
if (shift >= EINT_MAX_PER_REG) {
reg += 4;
shift -= EINT_MAX_PER_REG;
}
shift = EINT_CON_LEN * (shift / 2);
val = readl(reg);
val &= ~(EINT_CON_MASK << shift);
val |= trigger << shift;
writel(val, reg);
s3c64xx_irq_set_function(d, bank, irqd->hwirq);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 175 | 97.77% | 1 | 50.00% |
| Chanwoo Choi | 4 | 2.23% | 1 | 50.00% |
| Total | 179 | 100.00% | 2 | 100.00% |
/*
* irq_chip for wakeup interrupts
*/
static struct irq_chip s3c64xx_eint0_irq_chip = {
.name = "EINT0",
.irq_unmask = s3c64xx_eint0_irq_unmask,
.irq_mask = s3c64xx_eint0_irq_mask,
.irq_ack = s3c64xx_eint0_irq_ack,
.irq_set_type = s3c64xx_eint0_irq_set_type,
};
static inline void s3c64xx_irq_demux_eint(struct irq_desc *desc, u32 range)
{
struct irq_chip *chip = irq_desc_get_chip(desc);
struct irq_data *irqd = irq_desc_get_irq_data(desc);
struct s3c64xx_eint0_domain_data *ddata =
irq_data_get_irq_chip_data(irqd);
struct samsung_pin_bank *bank = ddata->bank;
struct s3c64xx_eint0_data *data = irq_desc_get_handler_data(desc);
unsigned int pend, mask;
chained_irq_enter(chip, desc);
pend = readl(bank->eint_base + EINT0PEND_REG);
mask = readl(bank->eint_base + EINT0MASK_REG);
pend = pend & range & ~mask;
pend &= range;
while (pend) {
unsigned int virq, irq;
irq = fls(pend) - 1;
pend &= ~(1 << irq);
virq = irq_linear_revmap(data->domains[irq], data->pins[irq]);
/*
* Something must be really wrong if an unmapped EINT
* was unmasked...
*/
BUG_ON(!virq);
generic_handle_irq(virq);
}
chained_irq_exit(chip, desc);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 144 | 80.00% | 1 | 33.33% |
| Chanwoo Choi | 31 | 17.22% | 1 | 33.33% |
| Jiang Liu | 5 | 2.78% | 1 | 33.33% |
| Total | 180 | 100.00% | 3 | 100.00% |
static void s3c64xx_demux_eint0_3(struct irq_desc *desc)
{
s3c64xx_irq_demux_eint(desc, 0xf);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 18 | 100.00% | 1 | 100.00% |
| Total | 18 | 100.00% | 1 | 100.00% |
static void s3c64xx_demux_eint4_11(struct irq_desc *desc)
{
s3c64xx_irq_demux_eint(desc, 0xff0);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 18 | 100.00% | 1 | 100.00% |
| Total | 18 | 100.00% | 1 | 100.00% |
static void s3c64xx_demux_eint12_19(struct irq_desc *desc)
{
s3c64xx_irq_demux_eint(desc, 0xff000);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 18 | 100.00% | 1 | 100.00% |
| Total | 18 | 100.00% | 1 | 100.00% |
static void s3c64xx_demux_eint20_27(struct irq_desc *desc)
{
s3c64xx_irq_demux_eint(desc, 0xff00000);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 18 | 100.00% | 1 | 100.00% |
| Total | 18 | 100.00% | 1 | 100.00% |
static irq_flow_handler_t s3c64xx_eint0_handlers[NUM_EINT0_IRQ] = {
s3c64xx_demux_eint0_3,
s3c64xx_demux_eint4_11,
s3c64xx_demux_eint12_19,
s3c64xx_demux_eint20_27,
};
static int s3c64xx_eint0_irq_map(struct irq_domain *h, unsigned int virq,
irq_hw_number_t hw)
{
struct s3c64xx_eint0_domain_data *ddata = h->host_data;
struct samsung_pin_bank *bank = ddata->bank;
if (!(bank->eint_mask & (1 << hw)))
return -EINVAL;
irq_set_chip_and_handler(virq,
&s3c64xx_eint0_irq_chip, handle_level_irq);
irq_set_chip_data(virq, ddata);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 75 | 100.00% | 1 | 100.00% |
| Total | 75 | 100.00% | 1 | 100.00% |
/*
* irq domain callbacks for external wakeup interrupt controller.
*/
static const struct irq_domain_ops s3c64xx_eint0_irqd_ops = {
.map = s3c64xx_eint0_irq_map,
.xlate = irq_domain_xlate_twocell,
};
/* list of external wakeup controllers supported */
static const struct of_device_id s3c64xx_eint0_irq_ids[] = {
{ .compatible = "samsung,s3c64xx-wakeup-eint", },
{ }
};
/**
* s3c64xx_eint_eint0_init() - setup handling of external wakeup interrupts.
* @d: driver data of samsung pinctrl driver.
*/
static int s3c64xx_eint_eint0_init(struct samsung_pinctrl_drv_data *d)
{
struct device *dev = d->dev;
struct device_node *eint0_np = NULL;
struct device_node *np;
struct samsung_pin_bank *bank;
struct s3c64xx_eint0_data *data;
unsigned int i;
for_each_child_of_node(dev->of_node, np) {
if (of_match_node(s3c64xx_eint0_irq_ids, np)) {
eint0_np = np;
break;
}
}
if (!eint0_np)
return -ENODEV;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->drvdata = d;
for (i = 0; i < NUM_EINT0_IRQ; ++i) {
unsigned int irq;
irq = irq_of_parse_and_map(eint0_np, i);
if (!irq) {
dev_err(dev, "failed to get wakeup EINT IRQ %d\n", i);
return -ENXIO;
}
irq_set_chained_handler_and_data(irq,
s3c64xx_eint0_handlers[i],
data);
}
bank = d->pin_banks;
for (i = 0; i < d->nr_banks; ++i, ++bank) {
struct s3c64xx_eint0_domain_data *ddata;
unsigned int nr_eints;
unsigned int mask;
unsigned int irq;
unsigned int pin;
if (bank->eint_type != EINT_TYPE_WKUP)
continue;
mask = bank->eint_mask;
nr_eints = fls(mask);
ddata = devm_kzalloc(dev,
sizeof(*ddata) + nr_eints, GFP_KERNEL);
if (!ddata)
return -ENOMEM;
ddata->bank = bank;
bank->irq_domain = irq_domain_add_linear(bank->of_node,
nr_eints, &s3c64xx_eint0_irqd_ops, ddata);
if (!bank->irq_domain) {
dev_err(dev, "wkup irq domain add failed\n");
return -ENXIO;
}
irq = bank->eint_offset;
mask = bank->eint_mask;
for (pin = 0; mask; ++pin, mask >>= 1) {
if (!(mask & 1))
continue;
data->domains[irq] = bank->irq_domain;
data->pins[irq] = pin;
ddata->eints[pin] = irq;
++irq;
}
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 381 | 99.74% | 1 | 50.00% |
| Thomas Gleixner | 1 | 0.26% | 1 | 50.00% |
| Total | 382 | 100.00% | 2 | 100.00% |
/* pin banks of s3c64xx pin-controller 0 */
static const struct samsung_pin_bank_data s3c64xx_pin_banks0[] __initconst = {
PIN_BANK_4BIT_EINTG(8, 0x000, "gpa", 0),
PIN_BANK_4BIT_EINTG(7, 0x020, "gpb", 8),
PIN_BANK_4BIT_EINTG(8, 0x040, "gpc", 16),
PIN_BANK_4BIT_EINTG(5, 0x060, "gpd", 32),
PIN_BANK_4BIT(5, 0x080, "gpe"),
PIN_BANK_2BIT_EINTG(16, 0x0a0, "gpf", 48, 0x3fff),
PIN_BANK_4BIT_EINTG(7, 0x0c0, "gpg", 64),
PIN_BANK_4BIT2_EINTG(10, 0x0e0, "gph", 80),
PIN_BANK_2BIT(16, 0x100, "gpi"),
PIN_BANK_2BIT(12, 0x120, "gpj"),
PIN_BANK_4BIT2_ALIVE(16, 0x800, "gpk"),
PIN_BANK_4BIT2_EINTW(15, 0x810, "gpl", 16, 0x7f00),
PIN_BANK_4BIT_EINTW(6, 0x820, "gpm", 23, 0x1f),
PIN_BANK_2BIT_EINTW(16, 0x830, "gpn", 0),
PIN_BANK_2BIT_EINTG(16, 0x140, "gpo", 96, 0xffff),
PIN_BANK_2BIT_EINTG(15, 0x160, "gpp", 112, 0x7fff),
PIN_BANK_2BIT_EINTG(9, 0x180, "gpq", 128, 0x1ff),
};
/*
* Samsung pinctrl driver data for S3C64xx SoC. S3C64xx SoC includes
* one gpio/pin-mux/pinconfig controller.
*/
const struct samsung_pin_ctrl s3c64xx_pin_ctrl[] __initconst = {
{
/* pin-controller instance 1 data */
.pin_banks = s3c64xx_pin_banks0,
.nr_banks = ARRAY_SIZE(s3c64xx_pin_banks0),
.eint_gpio_init = s3c64xx_eint_gpio_init,
.eint_wkup_init = s3c64xx_eint_eint0_init,
},
};
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Tomasz Figa | 3048 | 97.13% | 5 | 55.56% |
| Chanwoo Choi | 71 | 2.26% | 1 | 11.11% |
| Thomas Gleixner | 10 | 0.32% | 2 | 22.22% |
| Jiang Liu | 9 | 0.29% | 1 | 11.11% |
| Total | 3138 | 100.00% | 9 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.