aboutsummaryrefslogtreecommitdiff
path: root/drivers/gpio
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/Kconfig6
-rw-r--r--drivers/gpio/Makefile1
-rw-r--r--drivers/gpio/gpio-ich.c2
-rw-r--r--drivers/gpio/gpio-msm-v1.c220
-rw-r--r--drivers/gpio/gpio-msm-v2.c3
-rw-r--r--drivers/gpio/gpio-mxc.c2
-rw-r--r--drivers/gpio/gpio-omap.c3
-rw-r--r--drivers/gpio/gpio-pca953x.c2
-rw-r--r--drivers/gpio/gpio-pl061.c127
-rw-r--r--drivers/gpio/gpio-pxa.c161
-rw-r--r--drivers/gpio/gpio-samsung.c9
-rw-r--r--drivers/gpio/gpio-stmpe.c15
-rw-r--r--drivers/gpio/gpio-tegra.c24
-rw-r--r--drivers/gpio/gpio-vt8500.c355
-rw-r--r--drivers/gpio/gpiolib-of.c15
15 files changed, 383 insertions, 562 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 93aaadf99f28..b166e30b3bc4 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -227,12 +227,6 @@ config GPIO_TS5500
blocks of the TS-5500: DIO1, DIO2 and the LCD port, and the TS-5600
LCD port.
-config GPIO_VT8500
- bool "VIA/Wondermedia SoC GPIO Support"
- depends on ARCH_VT8500
- help
- Say yes here to support the VT8500/WM8505/WM8650 GPIO controller.
-
config GPIO_XILINX
bool "Xilinx GPIO support"
depends on PPC_OF || MICROBLAZE
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 22e07bc9fcb5..a274d7df3c8c 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -80,7 +80,6 @@ obj-$(CONFIG_GPIO_TWL6040) += gpio-twl6040.o
obj-$(CONFIG_GPIO_UCB1400) += gpio-ucb1400.o
obj-$(CONFIG_GPIO_VIPERBOARD) += gpio-viperboard.o
obj-$(CONFIG_GPIO_VR41XX) += gpio-vr41xx.o
-obj-$(CONFIG_GPIO_VT8500) += gpio-vt8500.o
obj-$(CONFIG_GPIO_VX855) += gpio-vx855.o
obj-$(CONFIG_GPIO_WM831X) += gpio-wm831x.o
obj-$(CONFIG_GPIO_WM8350) += gpio-wm8350.o
diff --git a/drivers/gpio/gpio-ich.c b/drivers/gpio/gpio-ich.c
index f9dbd503fc40..de3c317bd3e2 100644
--- a/drivers/gpio/gpio-ich.c
+++ b/drivers/gpio/gpio-ich.c
@@ -214,7 +214,7 @@ static int ichx_gpio_request(struct gpio_chip *chip, unsigned nr)
* If it can't be trusted, assume that the pin can be used as a GPIO.
*/
if (ichx_priv.desc->use_sel_ignore[nr / 32] & (1 << (nr & 0x1f)))
- return 1;
+ return 0;
return ichx_read_bit(GPIO_USE_SEL, nr) ? 0 : -ENODEV;
}
diff --git a/drivers/gpio/gpio-msm-v1.c b/drivers/gpio/gpio-msm-v1.c
index 52a4d4286eba..c798585a3fe5 100644
--- a/drivers/gpio/gpio-msm-v1.c
+++ b/drivers/gpio/gpio-msm-v1.c
@@ -1,6 +1,6 @@
/*
* Copyright (C) 2007 Google, Inc.
- * Copyright (c) 2009-2011, Code Aurora Forum. All rights reserved.
+ * Copyright (c) 2009-2012, The Linux Foundation. All rights reserved.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
@@ -19,9 +19,10 @@
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/module.h>
-#include <mach/cpu.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+
#include <mach/msm_gpiomux.h>
-#include <mach/msm_iomap.h>
/* see 80-VA736-2 Rev C pp 695-751
**
@@ -34,10 +35,10 @@
** macros.
*/
-#define MSM_GPIO1_REG(off) (MSM_GPIO1_BASE + (off))
-#define MSM_GPIO2_REG(off) (MSM_GPIO2_BASE + 0x400 + (off))
-#define MSM_GPIO1_SHADOW_REG(off) (MSM_GPIO1_BASE + 0x800 + (off))
-#define MSM_GPIO2_SHADOW_REG(off) (MSM_GPIO2_BASE + 0xC00 + (off))
+#define MSM_GPIO1_REG(off) (off)
+#define MSM_GPIO2_REG(off) (off)
+#define MSM_GPIO1_SHADOW_REG(off) (off)
+#define MSM_GPIO2_SHADOW_REG(off) (off)
/*
* MSM7X00 registers
@@ -276,16 +277,14 @@
#define MSM_GPIO_BANK(soc, bank, first, last) \
{ \
- .regs = { \
- .out = soc##_GPIO_OUT_##bank, \
- .in = soc##_GPIO_IN_##bank, \
- .int_status = soc##_GPIO_INT_STATUS_##bank, \
- .int_clear = soc##_GPIO_INT_CLEAR_##bank, \
- .int_en = soc##_GPIO_INT_EN_##bank, \
- .int_edge = soc##_GPIO_INT_EDGE_##bank, \
- .int_pos = soc##_GPIO_INT_POS_##bank, \
- .oe = soc##_GPIO_OE_##bank, \
- }, \
+ .regs[MSM_GPIO_OUT] = soc##_GPIO_OUT_##bank, \
+ .regs[MSM_GPIO_IN] = soc##_GPIO_IN_##bank, \
+ .regs[MSM_GPIO_INT_STATUS] = soc##_GPIO_INT_STATUS_##bank, \
+ .regs[MSM_GPIO_INT_CLEAR] = soc##_GPIO_INT_CLEAR_##bank, \
+ .regs[MSM_GPIO_INT_EN] = soc##_GPIO_INT_EN_##bank, \
+ .regs[MSM_GPIO_INT_EDGE] = soc##_GPIO_INT_EDGE_##bank, \
+ .regs[MSM_GPIO_INT_POS] = soc##_GPIO_INT_POS_##bank, \
+ .regs[MSM_GPIO_OE] = soc##_GPIO_OE_##bank, \
.chip = { \
.base = (first), \
.ngpio = (last) - (first) + 1, \
@@ -301,39 +300,57 @@
#define MSM_GPIO_BROKEN_INT_CLEAR 1
-struct msm_gpio_regs {
- void __iomem *out;
- void __iomem *in;
- void __iomem *int_status;
- void __iomem *int_clear;
- void __iomem *int_en;
- void __iomem *int_edge;
- void __iomem *int_pos;
- void __iomem *oe;
+enum msm_gpio_reg {
+ MSM_GPIO_IN,
+ MSM_GPIO_OUT,
+ MSM_GPIO_INT_STATUS,
+ MSM_GPIO_INT_CLEAR,
+ MSM_GPIO_INT_EN,
+ MSM_GPIO_INT_EDGE,
+ MSM_GPIO_INT_POS,
+ MSM_GPIO_OE,
+ MSM_GPIO_REG_NR
};
struct msm_gpio_chip {
spinlock_t lock;
struct gpio_chip chip;
- struct msm_gpio_regs regs;
+ unsigned long regs[MSM_GPIO_REG_NR];
#if MSM_GPIO_BROKEN_INT_CLEAR
unsigned int_status_copy;
#endif
unsigned int both_edge_detect;
unsigned int int_enable[2]; /* 0: awake, 1: sleep */
+ void __iomem *base;
+};
+
+struct msm_gpio_initdata {
+ struct msm_gpio_chip *chips;
+ int count;
};
+static void msm_gpio_writel(struct msm_gpio_chip *chip, u32 val,
+ enum msm_gpio_reg reg)
+{
+ writel(val, chip->base + chip->regs[reg]);
+}
+
+static u32 msm_gpio_readl(struct msm_gpio_chip *chip, enum msm_gpio_reg reg)
+{
+ return readl(chip->base + chip->regs[reg]);
+}
+
static int msm_gpio_write(struct msm_gpio_chip *msm_chip,
unsigned offset, unsigned on)
{
unsigned mask = BIT(offset);
unsigned val;
- val = readl(msm_chip->regs.out);
+ val = msm_gpio_readl(msm_chip, MSM_GPIO_OUT);
if (on)
- writel(val | mask, msm_chip->regs.out);
+ msm_gpio_writel(msm_chip, val | mask, MSM_GPIO_OUT);
else
- writel(val & ~mask, msm_chip->regs.out);
+ msm_gpio_writel(msm_chip, val & ~mask, MSM_GPIO_OUT);
return 0;
}
@@ -342,13 +359,13 @@ static void msm_gpio_update_both_edge_detect(struct msm_gpio_chip *msm_chip)
int loop_limit = 100;
unsigned pol, val, val2, intstat;
do {
- val = readl(msm_chip->regs.in);
- pol = readl(msm_chip->regs.int_pos);
+ val = msm_gpio_readl(msm_chip, MSM_GPIO_IN);
+ pol = msm_gpio_readl(msm_chip, MSM_GPIO_INT_POS);
pol = (pol & ~msm_chip->both_edge_detect) |
(~val & msm_chip->both_edge_detect);
- writel(pol, msm_chip->regs.int_pos);
- intstat = readl(msm_chip->regs.int_status);
- val2 = readl(msm_chip->regs.in);
+ msm_gpio_writel(msm_chip, pol, MSM_GPIO_INT_POS);
+ intstat = msm_gpio_readl(msm_chip, MSM_GPIO_INT_STATUS);
+ val2 = msm_gpio_readl(msm_chip, MSM_GPIO_IN);
if (((val ^ val2) & msm_chip->both_edge_detect & ~intstat) == 0)
return;
} while (loop_limit-- > 0);
@@ -365,10 +382,11 @@ static int msm_gpio_clear_detect_status(struct msm_gpio_chip *msm_chip,
/* Save interrupts that already triggered before we loose them. */
/* Any interrupt that triggers between the read of int_status */
/* and the write to int_clear will still be lost though. */
- msm_chip->int_status_copy |= readl(msm_chip->regs.int_status);
+ msm_chip->int_status_copy |=
+ msm_gpio_readl(msm_chip, MSM_GPIO_INT_STATUS);
msm_chip->int_status_copy &= ~bit;
#endif
- writel(bit, msm_chip->regs.int_clear);
+ msm_gpio_writel(msm_chip, bit, MSM_GPIO_INT_CLEAR);
msm_gpio_update_both_edge_detect(msm_chip);
return 0;
}
@@ -377,10 +395,12 @@ static int msm_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
{
struct msm_gpio_chip *msm_chip;
unsigned long irq_flags;
+ u32 val;
msm_chip = container_of(chip, struct msm_gpio_chip, chip);
spin_lock_irqsave(&msm_chip->lock, irq_flags);
- writel(readl(msm_chip->regs.oe) & ~BIT(offset), msm_chip->regs.oe);
+ val = msm_gpio_readl(msm_chip, MSM_GPIO_OE) & ~BIT(offset);
+ msm_gpio_writel(msm_chip, val, MSM_GPIO_OE);
spin_unlock_irqrestore(&msm_chip->lock, irq_flags);
return 0;
}
@@ -390,11 +410,13 @@ msm_gpio_direction_output(struct gpio_chip *chip, unsigned offset, int value)
{
struct msm_gpio_chip *msm_chip;
unsigned long irq_flags;
+ u32 val;
msm_chip = container_of(chip, struct msm_gpio_chip, chip);
spin_lock_irqsave(&msm_chip->lock, irq_flags);
msm_gpio_write(msm_chip, offset, value);
- writel(readl(msm_chip->regs.oe) | BIT(offset), msm_chip->regs.oe);
+ val = msm_gpio_readl(msm_chip, MSM_GPIO_OE) | BIT(offset);
+ msm_gpio_writel(msm_chip, val, MSM_GPIO_OE);
spin_unlock_irqrestore(&msm_chip->lock, irq_flags);
return 0;
}
@@ -404,7 +426,7 @@ static int msm_gpio_get(struct gpio_chip *chip, unsigned offset)
struct msm_gpio_chip *msm_chip;
msm_chip = container_of(chip, struct msm_gpio_chip, chip);
- return (readl(msm_chip->regs.in) & (1U << offset)) ? 1 : 0;
+ return (msm_gpio_readl(msm_chip, MSM_GPIO_IN) & (1U << offset)) ? 1 : 0;
}
static void msm_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
@@ -450,6 +472,11 @@ static struct msm_gpio_chip msm_gpio_chips_msm7x01[] = {
MSM_GPIO_BANK(MSM7X00, 5, 107, 121),
};
+static struct msm_gpio_initdata msm_gpio_7x01_init = {
+ .chips = msm_gpio_chips_msm7x01,
+ .count = ARRAY_SIZE(msm_gpio_chips_msm7x01),
+};
+
static struct msm_gpio_chip msm_gpio_chips_msm7x30[] = {
MSM_GPIO_BANK(MSM7X30, 0, 0, 15),
MSM_GPIO_BANK(MSM7X30, 1, 16, 43),
@@ -461,6 +488,11 @@ static struct msm_gpio_chip msm_gpio_chips_msm7x30[] = {
MSM_GPIO_BANK(MSM7X30, 7, 151, 181),
};
+static struct msm_gpio_initdata msm_gpio_7x30_init = {
+ .chips = msm_gpio_chips_msm7x30,
+ .count = ARRAY_SIZE(msm_gpio_chips_msm7x30),
+};
+
static struct msm_gpio_chip msm_gpio_chips_qsd8x50[] = {
MSM_GPIO_BANK(QSD8X50, 0, 0, 15),
MSM_GPIO_BANK(QSD8X50, 1, 16, 42),
@@ -472,6 +504,11 @@ static struct msm_gpio_chip msm_gpio_chips_qsd8x50[] = {
MSM_GPIO_BANK(QSD8X50, 7, 153, 164),
};
+static struct msm_gpio_initdata msm_gpio_8x50_init = {
+ .chips = msm_gpio_chips_qsd8x50,
+ .count = ARRAY_SIZE(msm_gpio_chips_qsd8x50),
+};
+
static void msm_gpio_irq_ack(struct irq_data *d)
{
unsigned long irq_flags;
@@ -490,10 +527,10 @@ static void msm_gpio_irq_mask(struct irq_data *d)
spin_lock_irqsave(&msm_chip->lock, irq_flags);
/* level triggered interrupts are also latched */
- if (!(readl(msm_chip->regs.int_edge) & BIT(offset)))
+ if (!(msm_gpio_readl(msm_chip, MSM_GPIO_INT_EDGE) & BIT(offset)))
msm_gpio_clear_detect_status(msm_chip, offset);
msm_chip->int_enable[0] &= ~BIT(offset);
- writel(msm_chip->int_enable[0], msm_chip->regs.int_en);
+ msm_gpio_writel(msm_chip, msm_chip->int_enable[0], MSM_GPIO_INT_EN);
spin_unlock_irqrestore(&msm_chip->lock, irq_flags);
}
@@ -505,10 +542,10 @@ static void msm_gpio_irq_unmask(struct irq_data *d)
spin_lock_irqsave(&msm_chip->lock, irq_flags);
/* level triggered interrupts are also latched */
- if (!(readl(msm_chip->regs.int_edge) & BIT(offset)))
+ if (!(msm_gpio_readl(msm_chip, MSM_GPIO_INT_EDGE) & BIT(offset)))
msm_gpio_clear_detect_status(msm_chip, offset);
msm_chip->int_enable[0] |= BIT(offset);
- writel(msm_chip->int_enable[0], msm_chip->regs.int_en);
+ msm_gpio_writel(msm_chip, msm_chip->int_enable[0], MSM_GPIO_INT_EN);
spin_unlock_irqrestore(&msm_chip->lock, irq_flags);
}
@@ -537,12 +574,12 @@ static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int flow_type)
unsigned val, mask = BIT(offset);
spin_lock_irqsave(&msm_chip->lock, irq_flags);
- val = readl(msm_chip->regs.int_edge);
+ val = msm_gpio_readl(msm_chip, MSM_GPIO_INT_EDGE);
if (flow_type & IRQ_TYPE_EDGE_BOTH) {
- writel(val | mask, msm_chip->regs.int_edge);
+ msm_gpio_writel(msm_chip, val | mask, MSM_GPIO_INT_EDGE);
__irq_set_handler_locked(d->irq, handle_edge_irq);
} else {
- writel(val & ~mask, msm_chip->regs.int_edge);
+ msm_gpio_writel(msm_chip, val & ~mask, MSM_GPIO_INT_EDGE);
__irq_set_handler_locked(d->irq, handle_level_irq);
}
if ((flow_type & IRQ_TYPE_EDGE_BOTH) == IRQ_TYPE_EDGE_BOTH) {
@@ -550,11 +587,12 @@ static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int flow_type)
msm_gpio_update_both_edge_detect(msm_chip);
} else {
msm_chip->both_edge_detect &= ~mask;
- val = readl(msm_chip->regs.int_pos);
+ val = msm_gpio_readl(msm_chip, MSM_GPIO_INT_POS);
if (flow_type & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_HIGH))
- writel(val | mask, msm_chip->regs.int_pos);
+ val |= mask;
else
- writel(val & ~mask, msm_chip->regs.int_pos);
+ val &= ~mask;
+ msm_gpio_writel(msm_chip, val, MSM_GPIO_INT_POS);
}
spin_unlock_irqrestore(&msm_chip->lock, irq_flags);
return 0;
@@ -567,7 +605,7 @@ static void msm_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
for (i = 0; i < msm_gpio_count; i++) {
struct msm_gpio_chip *msm_chip = &msm_gpio_chips[i];
- val = readl(msm_chip->regs.int_status);
+ val = msm_gpio_readl(msm_chip, MSM_GPIO_INT_STATUS);
val &= msm_chip->int_enable[0];
while (val) {
mask = val & -val;
@@ -592,22 +630,36 @@ static struct irq_chip msm_gpio_irq_chip = {
.irq_set_type = msm_gpio_irq_set_type,
};
-static int __init msm_init_gpio(void)
+static int __devinit gpio_msm_v1_probe(struct platform_device *pdev)
{
int i, j = 0;
-
- if (cpu_is_msm7x01()) {
- msm_gpio_chips = msm_gpio_chips_msm7x01;
- msm_gpio_count = ARRAY_SIZE(msm_gpio_chips_msm7x01);
- } else if (cpu_is_msm7x30()) {
- msm_gpio_chips = msm_gpio_chips_msm7x30;
- msm_gpio_count = ARRAY_SIZE(msm_gpio_chips_msm7x30);
- } else if (cpu_is_qsd8x50()) {
- msm_gpio_chips = msm_gpio_chips_qsd8x50;
- msm_gpio_count = ARRAY_SIZE(msm_gpio_chips_qsd8x50);
- } else {
- return 0;
- }
+ const struct platform_device_id *dev_id = platform_get_device_id(pdev);
+ struct msm_gpio_initdata *data;
+ int irq1, irq2;
+ struct resource *res;
+ void __iomem *base1, __iomem *base2;
+
+ data = (struct msm_gpio_initdata *)dev_id->driver_data;
+ msm_gpio_chips = data->chips;
+ msm_gpio_count = data->count;
+
+ irq1 = platform_get_irq(pdev, 0);
+ if (irq1 < 0)
+ return irq1;
+
+ irq2 = platform_get_irq(pdev, 1);
+ if (irq2 < 0)
+ return irq2;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ base1 = devm_request_and_ioremap(&pdev->dev, res);
+ if (!base1)
+ return -EADDRNOTAVAIL;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ base2 = devm_request_and_ioremap(&pdev->dev, res);
+ if (!base2)
+ return -EADDRNOTAVAIL;
for (i = FIRST_GPIO_IRQ; i < FIRST_GPIO_IRQ + NR_GPIO_IRQS; i++) {
if (i - FIRST_GPIO_IRQ >=
@@ -621,16 +673,42 @@ static int __init msm_init_gpio(void)
}
for (i = 0; i < msm_gpio_count; i++) {
+ if (i == 1)
+ msm_gpio_chips[i].base = base2;
+ else
+ msm_gpio_chips[i].base = base1;
spin_lock_init(&msm_gpio_chips[i].lock);
- writel(0, msm_gpio_chips[i].regs.int_en);
+ msm_gpio_writel(&msm_gpio_chips[i], 0, MSM_GPIO_INT_EN);
gpiochip_add(&msm_gpio_chips[i].chip);
}
- irq_set_chained_handler(INT_GPIO_GROUP1, msm_gpio_irq_handler);
- irq_set_chained_handler(INT_GPIO_GROUP2, msm_gpio_irq_handler);
- irq_set_irq_wake(INT_GPIO_GROUP1, 1);
- irq_set_irq_wake(INT_GPIO_GROUP2, 2);
+ irq_set_chained_handler(irq1, msm_gpio_irq_handler);
+ irq_set_chained_handler(irq2, msm_gpio_irq_handler);
+ irq_set_irq_wake(irq1, 1);
+ irq_set_irq_wake(irq2, 2);
return 0;
}
-postcore_initcall(msm_init_gpio);
+static struct platform_device_id gpio_msm_v1_device_ids[] = {
+ { "gpio-msm-7201", (unsigned long)&msm_gpio_7x01_init },
+ { "gpio-msm-7x30", (unsigned long)&msm_gpio_7x30_init },
+ { "gpio-msm-8x50", (unsigned long)&msm_gpio_8x50_init },
+ { }
+};
+MODULE_DEVICE_TABLE(platform, gpio_msm_v1_device_ids);
+
+static struct platform_driver gpio_msm_v1_driver = {
+ .driver = {
+ .name = "gpio-msm-v1",
+ .owner = THIS_MODULE,
+ },
+ .probe = gpio_msm_v1_probe,
+ .id_table = gpio_msm_v1_device_ids,
+};
+
+static int __init gpio_msm_v1_init(void)
+{
+ return platform_driver_register(&gpio_msm_v1_driver);
+}
+postcore_initcall(gpio_msm_v1_init);
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpio/gpio-msm-v2.c b/drivers/gpio/gpio-msm-v2.c
index 55a7e7769af6..dd2eddeb1e0c 100644
--- a/drivers/gpio/gpio-msm-v2.c
+++ b/drivers/gpio/gpio-msm-v2.c
@@ -23,13 +23,12 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
+#include <linux/irqchip/chained_irq.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/spinlock.h>
-#include <asm/mach/irq.h>
-
#include <mach/msm_gpiomux.h>
#include <mach/msm_iomap.h>
diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index 7877335c4cc8..7176743915d3 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -24,6 +24,7 @@
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
+#include <linux/irqchip/chained_irq.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
@@ -32,7 +33,6 @@
#include <linux/of_device.h>
#include <linux/module.h>
#include <asm-generic/bug.h>
-#include <asm/mach/irq.h>
enum mxc_gpio_hwtype {
IMX1_GPIO, /* runs on i.mx1 */
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index 159f5c57eb45..a612ea1c53cb 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -25,11 +25,10 @@
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/irqdomain.h>
+#include <linux/irqchip/chained_irq.h>
#include <linux/gpio.h>
#include <linux/platform_data/gpio-omap.h>
-#include <asm/mach/irq.h>
-
#define OFF_MODE 1
static LIST_HEAD(omap_gpio_list);
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 24059462c87f..9391cf16e990 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -575,7 +575,7 @@ static int pca953x_irq_setup(struct pca953x_chip *chip,
chip->gpio_chip.ngpio,
irq_base,
&pca953x_irq_simple_ops,
- NULL);
+ chip);
if (!chip->domain)
return -ENODEV;
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index b820869ca93c..6a4bd0dae0ce 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -15,6 +15,8 @@
#include <linux/io.h>
#include <linux/ioport.h>
#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/irqchip/chained_irq.h>
#include <linux/bitops.h>
#include <linux/workqueue.h>
#include <linux/gpio.h>
@@ -22,8 +24,8 @@
#include <linux/amba/bus.h>
#include <linux/amba/pl061.h>
#include <linux/slab.h>
+#include <linux/pinctrl/consumer.h>
#include <linux/pm.h>
-#include <asm/mach/irq.h>
#define GPIODIR 0x400
#define GPIOIS 0x404
@@ -51,8 +53,7 @@ struct pl061_gpio {
spinlock_t lock;
void __iomem *base;
- int irq_base;
- struct irq_chip_generic *irq_gc;
+ struct irq_domain *domain;
struct gpio_chip gc;
#ifdef CONFIG_PM
@@ -60,6 +61,24 @@ struct pl061_gpio {
#endif
};
+static int pl061_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+ /*
+ * Map back to global GPIO space and request muxing, the direction
+ * parameter does not matter for this controller.
+ */
+ int gpio = chip->base + offset;
+
+ return pinctrl_request_gpio(gpio);
+}
+
+static void pl061_gpio_free(struct gpio_chip *chip, unsigned offset)
+{
+ int gpio = chip->base + offset;
+
+ pinctrl_free_gpio(gpio);
+}
+
static int pl061_direction_input(struct gpio_chip *gc, unsigned offset)
{
struct pl061_gpio *chip = container_of(gc, struct pl061_gpio, gc);
@@ -122,24 +141,20 @@ static int pl061_to_irq(struct gpio_chip *gc, unsigned offset)
{
struct pl061_gpio *chip = container_of(gc, struct pl061_gpio, gc);
- if (chip->irq_base <= 0)
- return -EINVAL;
-
- return chip->irq_base + offset;
+ return irq_create_mapping(chip->domain, offset);
}
static int pl061_irq_type(struct irq_data *d, unsigned trigger)
{
- struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
- struct pl061_gpio *chip = gc->private;
- int offset = d->irq - chip->irq_base;
+ struct pl061_gpio *chip = irq_data_get_irq_chip_data(d);
+ int offset = irqd_to_hwirq(d);
unsigned long flags;
u8 gpiois, gpioibe, gpioiev;
if (offset < 0 || offset >= PL061_GPIO_NR)
return -EINVAL;
- raw_spin_lock_irqsave(&gc->lock, flags);
+ spin_lock_irqsave(&chip->lock, flags);
gpioiev = readb(chip->base + GPIOIEV);
@@ -168,7 +183,7 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger)
writeb(gpioiev, chip->base + GPIOIEV);
- raw_spin_unlock_irqrestore(&gc->lock, flags);
+ spin_unlock_irqrestore(&chip->lock, flags);
return 0;
}
@@ -192,31 +207,61 @@ static void pl061_irq_handler(unsigned irq, struct irq_desc *desc)
chained_irq_exit(irqchip, desc);
}
-static void __init pl061_init_gc(struct pl061_gpio *chip, int irq_base)
+static void pl061_irq_mask(struct irq_data *d)
+{
+ struct pl061_gpio *chip = irq_data_get_irq_chip_data(d);
+ u8 mask = 1 << (irqd_to_hwirq(d) % PL061_GPIO_NR);
+ u8 gpioie;
+
+ spin_lock(&chip->lock);
+ gpioie = readb(chip->base + GPIOIE) & ~mask;
+ writeb(gpioie, chip->base + GPIOIE);
+ spin_unlock(&chip->lock);
+}
+
+static void pl061_irq_unmask(struct irq_data *d)
{
- struct irq_chip_type *ct;
+ struct pl061_gpio *chip = irq_data_get_irq_chip_data(d);
+ u8 mask = 1 << (irqd_to_hwirq(d) % PL061_GPIO_NR);
+ u8 gpioie;
+
+ spin_lock(&chip->lock);
+ gpioie = readb(chip->base + GPIOIE) | mask;
+ writeb(gpioie, chip->base + GPIOIE);
+ spin_unlock(&chip->lock);
+}
+
+static struct irq_chip pl061_irqchip = {
+ .name = "pl061 gpio",
+ .irq_mask = pl061_irq_mask,
+ .irq_unmask = pl061_irq_unmask,
+ .irq_set_type = pl061_irq_type,
+};
- chip->irq_gc = irq_alloc_generic_chip("gpio-pl061", 1, irq_base,
- chip->base, handle_simple_irq);
- chip->irq_gc->private = chip;
+static int pl061_irq_map(struct irq_domain *d, unsigned int virq,
+ irq_hw_number_t hw)
+{
+ struct pl061_gpio *chip = d->host_data;
- ct = chip->irq_gc->chip_types;
- ct->chip.irq_mask = irq_gc_mask_clr_bit;
- ct->chip.irq_unmask = irq_gc_mask_set_bit;
- ct->chip.irq_set_type = pl061_irq_type;
- ct->chip.irq_set_wake = irq_gc_set_wake;
- ct->regs.mask = GPIOIE;
+ irq_set_chip_and_handler_name(virq, &pl061_irqchip, handle_simple_irq,
+ "pl061");
+ irq_set_chip_data(virq, chip);
+ irq_set_irq_type(virq, IRQ_TYPE_NONE);
- irq_setup_generic_chip(chip->irq_gc, IRQ_MSK(PL061_GPIO_NR),
- IRQ_GC_INIT_NESTED_LOCK, IRQ_NOREQUEST, 0);
+ return 0;
}
+static const struct irq_domain_ops pl061_domain_ops = {
+ .map = pl061_irq_map,
+ .xlate = irq_domain_xlate_twocell,
+};
+
static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
{
struct device *dev = &adev->dev;
struct pl061_platform_data *pdata = dev->platform_data;
struct pl061_gpio *chip;
- int ret, irq, i;
+ int ret, irq, i, irq_base;
chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
if (chip == NULL)
@@ -224,24 +269,32 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
if (pdata) {
chip->gc.base = pdata->gpio_base;
- chip->irq_base = pdata->irq_base;
- } else if (adev->dev.of_node) {
+ irq_base = pdata->irq_base;
+ if (irq_base <= 0)
+ return -ENODEV;
+ } else {
chip->gc.base = -1;
- chip->irq_base = 0;
- } else
- return -ENODEV;
+ irq_base = 0;
+ }
if (!devm_request_mem_region(dev, adev->res.start,
- resource_size(&adev->res), "pl061"))
+ resource_size(&adev->res), "pl061"))
return -EBUSY;
chip->base = devm_ioremap(dev, adev->res.start,
- resource_size(&adev->res));
- if (chip->base == NULL)
+ resource_size(&adev->res));
+ if (!chip->base)
return -ENOMEM;
+ chip->domain = irq_domain_add_simple(adev->dev.of_node, PL061_GPIO_NR,
+ irq_base, &pl061_domain_ops, chip);
+ if (!chip->domain)
+ return -ENODEV;
+
spin_lock_init(&chip->lock);
+ chip->gc.request = pl061_gpio_request;
+ chip->gc.free = pl061_gpio_free;
chip->gc.direction_input = pl061_direction_input;
chip->gc.direction_output = pl061_direction_output;
chip->gc.get = pl061_get_value;
@@ -259,12 +312,6 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
/*
* irq_chip support
*/
-
- if (chip->irq_base <= 0)
- return 0;
-
- pl061_init_gc(chip, chip->irq_base);
-
writeb(0, chip->base + GPIOIE); /* disable irqs */
irq = adev->irq[0];
if (irq < 0)
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 9cc108d2b770..d7a5c9d75525 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -19,6 +19,7 @@
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
+#include <linux/irqchip/chained_irq.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_device.h>
@@ -26,8 +27,6 @@
#include <linux/syscore_ops.h>
#include <linux/slab.h>
-#include <asm/mach/irq.h>
-
#include <mach/irqs.h>
/*
@@ -86,20 +85,61 @@ struct pxa_gpio_chip {
#endif
};
-enum {
+enum pxa_gpio_type {
PXA25X_GPIO = 0,
PXA26X_GPIO,
PXA27X_GPIO,
PXA3XX_GPIO,
PXA93X_GPIO,
MMP_GPIO = 0x10,
+ MMP2_GPIO,
+};
+
+struct pxa_gpio_id {
+ enum pxa_gpio_type type;
+ int gpio_nums;
};
static DEFINE_SPINLOCK(gpio_lock);
static struct pxa_gpio_chip *pxa_gpio_chips;
-static int gpio_type;
+static enum pxa_gpio_type gpio_type;
static void __iomem *gpio_reg_base;
+static struct pxa_gpio_id pxa25x_id = {
+ .type = PXA25X_GPIO,
+ .gpio_nums = 85,
+};
+
+static struct pxa_gpio_id pxa26x_id = {
+ .type = PXA26X_GPIO,
+ .gpio_nums = 90,
+};
+
+static struct pxa_gpio_id pxa27x_id = {
+ .type = PXA27X_GPIO,
+ .gpio_nums = 121,
+};
+
+static struct pxa_gpio_id pxa3xx_id = {
+ .type = PXA3XX_GPIO,
+ .gpio_nums = 128,
+};
+
+static struct pxa_gpio_id pxa93x_id = {
+ .type = PXA93X_GPIO,
+ .gpio_nums = 192,
+};
+
+static struct pxa_gpio_id mmp_id = {
+ .type = MMP_GPIO,
+ .gpio_nums = 128,
+};
+
+static struct pxa_gpio_id mmp2_id = {
+ .type = MMP2_GPIO,
+ .gpio_nums = 192,
+};
+
#define for_each_gpio_chip(i, c) \
for (i = 0, c = &pxa_gpio_chips[0]; i <= pxa_last_gpio; i += 32, c++)
@@ -432,47 +472,39 @@ static struct irq_chip pxa_muxed_gpio_chip = {
.irq_set_wake = pxa_gpio_set_wake,
};
-static int pxa_gpio_nums(void)
+static int pxa_gpio_nums(struct platform_device *pdev)
{
+ const struct platform_device_id *id = platform_get_device_id(pdev);
+ struct pxa_gpio_id *pxa_id = (struct pxa_gpio_id *)id->driver_data;
int count = 0;
-#ifdef CONFIG_ARCH_PXA
- if (cpu_is_pxa25x()) {
-#ifdef CONFIG_CPU_PXA26x
- count = 89;
- gpio_type = PXA26X_GPIO;
-#elif defined(CONFIG_PXA25x)
- count = 84;
- gpio_type = PXA26X_GPIO;
-#endif /* CONFIG_CPU_PXA26x */
- } else if (cpu_is_pxa27x()) {
- count = 120;
- gpio_type = PXA27X_GPIO;
- } else if (cpu_is_pxa93x()) {
- count = 191;
- gpio_type = PXA93X_GPIO;
- } else if (cpu_is_pxa3xx()) {
- count = 127;
- gpio_type = PXA3XX_GPIO;
- }
-#endif /* CONFIG_ARCH_PXA */
-
-#ifdef CONFIG_ARCH_MMP
- if (cpu_is_pxa168() || cpu_is_pxa910()) {
- count = 127;
- gpio_type = MMP_GPIO;
- } else if (cpu_is_mmp2()) {
- count = 191;
- gpio_type = MMP_GPIO;
+ switch (pxa_id->type) {
+ case PXA25X_GPIO:
+ case PXA26X_GPIO:
+ case PXA27X_GPIO:
+ case PXA3XX_GPIO:
+ case PXA93X_GPIO:
+ case MMP_GPIO:
+ case MMP2_GPIO:
+ gpio_type = pxa_id->type;
+ count = pxa_id->gpio_nums - 1;
+ break;
+ default:
+ count = -EINVAL;
+ break;
}
-#endif /* CONFIG_ARCH_MMP */
return count;
}
#ifdef CONFIG_OF
static struct of_device_id pxa_gpio_dt_ids[] = {
- { .compatible = "mrvl,pxa-gpio" },
- { .compatible = "mrvl,mmp-gpio", .data = (void *)MMP_GPIO },
+ { .compatible = "intel,pxa25x-gpio", .data = &pxa25x_id, },
+ { .compatible = "intel,pxa26x-gpio", .data = &pxa26x_id, },
+ { .compatible = "intel,pxa27x-gpio", .data = &pxa27x_id, },
+ { .compatible = "intel,pxa3xx-gpio", .data = &pxa3xx_id, },
+ { .compatible = "marvell,pxa93x-gpio", .data = &pxa93x_id, },
+ { .compatible = "marvell,mmp-gpio", .data = &mmp_id, },
+ { .compatible = "marvell,mmp2-gpio", .data = &mmp2_id, },
{}
};
@@ -492,16 +524,18 @@ const struct irq_domain_ops pxa_irq_domain_ops = {
static int pxa_gpio_probe_dt(struct platform_device *pdev)
{
- int ret, nr_banks, nr_gpios;
+ int ret, nr_gpios;
struct device_node *prev, *next, *np = pdev->dev.of_node;
const struct of_device_id *of_id =
of_match_device(pxa_gpio_dt_ids, &pdev->dev);
+ const struct pxa_gpio_id *gpio_id;
- if (!of_id) {
+ if (!of_id || !of_id->data) {
dev_err(&pdev->dev, "Failed to find gpio controller\n");
return -EFAULT;
}
- gpio_type = (int)of_id->data;
+ gpio_id = of_id->data;
+ gpio_type = gpio_id->type;
next = of_get_next_child(np, NULL);
prev = next;
@@ -510,14 +544,8 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev)
ret = -EINVAL;
goto err;
}
- for (nr_banks = 1; ; nr_banks++) {
- next = of_get_next_child(np, prev);
- if (!next)
- break;
- prev = next;
- }
of_node_put(prev);
- nr_gpios = nr_banks << 5;
+ nr_gpios = gpio_id->gpio_nums;
pxa_last_gpio = nr_gpios - 1;
irq_base = irq_alloc_descs(-1, 0, nr_gpios, 0);
@@ -546,19 +574,18 @@ static int pxa_gpio_probe(struct platform_device *pdev)
int gpio, irq, ret, use_of = 0;
int irq0 = 0, irq1 = 0, irq_mux, gpio_offset = 0;
- ret = pxa_gpio_probe_dt(pdev);
- if (ret < 0) {
- pxa_last_gpio = pxa_gpio_nums();
-#ifdef CONFIG_ARCH_PXA
- if (gpio_is_pxa_type(gpio_type))
- irq_base = PXA_GPIO_TO_IRQ(0);
-#endif
-#ifdef CONFIG_ARCH_MMP
- if (gpio_is_mmp_type(gpio_type))
- irq_base = MMP_GPIO_TO_IRQ(0);
-#endif
+ info = dev_get_platdata(&pdev->dev);
+ if (info) {
+ irq_base = info->irq_base;
+ if (irq_base <= 0)
+ return -EINVAL;
+ pxa_last_gpio = pxa_gpio_nums(pdev);
} else {
+ irq_base = 0;
use_of = 1;
+ ret = pxa_gpio_probe_dt(pdev);
+ if (ret < 0)
+ return -EINVAL;
}
if (!pxa_last_gpio)
@@ -595,7 +622,6 @@ static int pxa_gpio_probe(struct platform_device *pdev)
}
/* Initialize GPIO chips */
- info = dev_get_platdata(&pdev->dev);
pxa_init_gpio_chip(pxa_last_gpio, info ? info->gpio_set_wake : NULL);
/* clear all GPIO edge detects */
@@ -635,14 +661,31 @@ static int pxa_gpio_probe(struct platform_device *pdev)
return 0;
}
+static const struct platform_device_id gpio_id_table[] = {
+ { "pxa25x-gpio", (unsigned long)&pxa25x_id },
+ { "pxa26x-gpio", (unsigned long)&pxa26x_id },
+ { "pxa27x-gpio", (unsigned long)&pxa27x_id },
+ { "pxa3xx-gpio", (unsigned long)&pxa3xx_id },
+ { "pxa93x-gpio", (unsigned long)&pxa93x_id },
+ { "mmp-gpio", (unsigned long)&mmp_id },
+ { "mmp2-gpio", (unsigned long)&mmp2_id },
+ { },
+};
+
static struct platform_driver pxa_gpio_driver = {
.probe = pxa_gpio_probe,
.driver = {
.name = "pxa-gpio",
.of_match_table = of_match_ptr(pxa_gpio_dt_ids),
},
+ .id_table = gpio_id_table,
};
-module_platform_driver(pxa_gpio_driver);
+
+static int __init pxa_gpio_init(void)
+{
+ return platform_driver_register(&pxa_gpio_driver);
+}
+postcore_initcall(pxa_gpio_init);
#ifdef CONFIG_PM
static int pxa_gpio_suspend(void)
diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
index b3643ff007e4..99e0fa49fcbd 100644
--- a/drivers/gpio/gpio-samsung.c
+++ b/drivers/gpio/gpio-samsung.c
@@ -1122,8 +1122,12 @@ int samsung_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset)
#ifdef CONFIG_PLAT_S3C24XX
static int s3c24xx_gpiolib_fbank_to_irq(struct gpio_chip *chip, unsigned offset)
{
- if (offset < 4)
- return IRQ_EINT0 + offset;
+ if (offset < 4) {
+ if (soc_is_s3c2412())
+ return IRQ_EINT0_2412 + offset;
+ else
+ return IRQ_EINT0 + offset;
+ }
if (offset < 8)
return IRQ_EINT4 + offset - 4;
@@ -3024,6 +3028,7 @@ static __init int samsung_gpiolib_init(void)
static const struct of_device_id exynos_pinctrl_ids[] = {
{ .compatible = "samsung,exynos4210-pinctrl", },
{ .compatible = "samsung,exynos4x12-pinctrl", },
+ { .compatible = "samsung,exynos5250-pinctrl", },
{ .compatible = "samsung,exynos5440-pinctrl", },
};
for_each_matching_node(pctrl_np, exynos_pinctrl_ids)
diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c
index 770476a9da87..3ce5bc38ac31 100644
--- a/drivers/gpio/gpio-stmpe.c
+++ b/drivers/gpio/gpio-stmpe.c
@@ -307,11 +307,15 @@ static const struct irq_domain_ops stmpe_gpio_irq_simple_ops = {
.xlate = irq_domain_xlate_twocell,
};
-static int stmpe_gpio_irq_init(struct stmpe_gpio *stmpe_gpio)
+static int stmpe_gpio_irq_init(struct stmpe_gpio *stmpe_gpio,
+ struct device_node *np)
{
- int base = stmpe_gpio->irq_base;
+ int base = 0;
- stmpe_gpio->domain = irq_domain_add_simple(NULL,
+ if (!np)
+ base = stmpe_gpio->irq_base;
+
+ stmpe_gpio->domain = irq_domain_add_simple(np,
stmpe_gpio->chip.ngpio, base,
&stmpe_gpio_irq_simple_ops, stmpe_gpio);
if (!stmpe_gpio->domain) {
@@ -346,6 +350,9 @@ static int stmpe_gpio_probe(struct platform_device *pdev)
stmpe_gpio->chip = template_chip;
stmpe_gpio->chip.ngpio = stmpe->num_gpios;
stmpe_gpio->chip.dev = &pdev->dev;
+#ifdef CONFIG_OF
+ stmpe_gpio->chip.of_node = np;
+#endif
stmpe_gpio->chip.base = pdata ? pdata->gpio_base : -1;
if (pdata)
@@ -366,7 +373,7 @@ static int stmpe_gpio_probe(struct platform_device *pdev)
goto out_free;
if (irq >= 0) {
- ret = stmpe_gpio_irq_init(stmpe_gpio);
+ ret = stmpe_gpio_irq_init(stmpe_gpio, np);
if (ret)
goto out_disable;
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 414ad912232f..dde0656ea951 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -27,11 +27,10 @@
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/irqdomain.h>
+#include <linux/irqchip/chained_irq.h>
#include <linux/pinctrl/consumer.h>
#include <linux/pm.h>
-#include <asm/mach/irq.h>
-
#define GPIO_BANK(x) ((x) >> 5)
#define GPIO_PORT(x) (((x) >> 3) & 0x3)
#define GPIO_BIT(x) ((x) & 0x7)
@@ -72,6 +71,7 @@ struct tegra_gpio_bank {
u32 oe[4];
u32 int_enb[4];
u32 int_lvl[4];
+ u32 wake_enb[4];
#endif
};
@@ -333,15 +333,31 @@ static int tegra_gpio_suspend(struct device *dev)
bank->oe[p] = tegra_gpio_readl(GPIO_OE(gpio));
bank->int_enb[p] = tegra_gpio_readl(GPIO_INT_ENB(gpio));
bank->int_lvl[p] = tegra_gpio_readl(GPIO_INT_LVL(gpio));
+
+ /* Enable gpio irq for wake up source */
+ tegra_gpio_writel(bank->wake_enb[p],
+ GPIO_INT_ENB(gpio));
}
}
local_irq_restore(flags);
return 0;
}
-static int tegra_gpio_wake_enable(struct irq_data *d, unsigned int enable)
+static int tegra_gpio_irq_set_wake(struct irq_data *d, unsigned int enable)
{
struct tegra_gpio_bank *bank = irq_data_get_irq_chip_data(d);
+ int gpio = d->hwirq;
+ u32 port, bit, mask;
+
+ port = GPIO_PORT(gpio);
+ bit = GPIO_BIT(gpio);
+ mask = BIT(bit);
+
+ if (enable)
+ bank->wake_enb[port] |= mask;
+ else
+ bank->wake_enb[port] &= ~mask;
+
return irq_set_irq_wake(bank->irq, enable);
}
#endif
@@ -353,7 +369,7 @@ static struct irq_chip tegra_gpio_irq_chip = {
.irq_unmask = tegra_gpio_irq_unmask,
.irq_set_type = tegra_gpio_irq_set_type,
#ifdef CONFIG_PM_SLEEP
- .irq_set_wake = tegra_gpio_wake_enable,
+ .irq_set_wake = tegra_gpio_irq_set_wake,
#endif
};
diff --git a/drivers/gpio/gpio-vt8500.c b/drivers/gpio/gpio-vt8500.c
deleted file mode 100644
index 81683ca35ac1..000000000000
--- a/drivers/gpio/gpio-vt8500.c
+++ /dev/null
@@ -1,355 +0,0 @@
-/* drivers/gpio/gpio-vt8500.c
- *
- * Copyright (C) 2012 Tony Prisk <linux@prisktech.co.nz>
- * Based on arch/arm/mach-vt8500/gpio.c:
- * - Copyright (C) 2010 Alexey Charkov <alchark@gmail.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/module.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/gpio.h>
-#include <linux/platform_device.h>
-#include <linux/bitops.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/of_device.h>
-
-/*
- We handle GPIOs by bank, each bank containing up to 32 GPIOs covered
- by one set of registers (although not all may be valid).
-
- Because different SoC's have different register offsets, we pass the
- register offsets as data in vt8500_gpio_dt_ids[].
-
- A value of NO_REG is used to indicate that this register is not
- supported. Only used for ->en at the moment.
-*/
-
-#define NO_REG 0xFFFF
-
-/*
- * struct vt8500_gpio_bank_regoffsets
- * @en: offset to enable register of the bank
- * @dir: offset to direction register of the bank
- * @data_out: offset to the data out register of the bank
- * @data_in: offset to the data in register of the bank
- * @ngpio: highest valid pin in this bank
- */
-
-struct vt8500_gpio_bank_regoffsets {
- unsigned int en;
- unsigned int dir;
- unsigned int data_out;
- unsigned int data_in;
- unsigned char ngpio;
-};
-
-struct vt8500_gpio_data {
- unsigned int num_banks;
- struct vt8500_gpio_bank_regoffsets banks[];
-};
-
-#define VT8500_BANK(__en, __dir, __out, __in, __ngpio) \
-{ \
- .en = __en, \
- .dir = __dir, \
- .data_out = __out, \
- .data_in = __in, \
- .ngpio = __ngpio, \
-}
-
-static struct vt8500_gpio_data vt8500_data = {
- .num_banks = 7,
- .banks = {
- VT8500_BANK(NO_REG, 0x3C, 0x5C, 0x7C, 9),
- VT8500_BANK(0x00, 0x20, 0x40, 0x60, 26),
- VT8500_BANK(0x04, 0x24, 0x44, 0x64, 28),
- VT8500_BANK(0x08, 0x28, 0x48, 0x68, 31),
- VT8500_BANK(0x0C, 0x2C, 0x4C, 0x6C, 19),
- VT8500_BANK(0x10, 0x30, 0x50, 0x70, 19),
- VT8500_BANK(0x14, 0x34, 0x54, 0x74, 23),
- },
-};
-
-static struct vt8500_gpio_data wm8505_data = {
- .num_banks = 10,
- .banks = {
- VT8500_BANK(0x64, 0x8C, 0xB4, 0xDC, 22),
- VT8500_BANK(0x40, 0x68, 0x90, 0xB8, 8),
- VT8500_BANK(0x44, 0x6C, 0x94, 0xBC, 32),
- VT8500_BANK(0x48, 0x70, 0x98, 0xC0, 6),
- VT8500_BANK(0x4C, 0x74, 0x9C, 0xC4, 16),
- VT8500_BANK(0x50, 0x78, 0xA0, 0xC8, 25),
- VT8500_BANK(0x54, 0x7C, 0xA4, 0xCC, 5),
- VT8500_BANK(0x58, 0x80, 0xA8, 0xD0, 5),
- VT8500_BANK(0x5C, 0x84, 0xAC, 0xD4, 12),
- VT8500_BANK(0x60, 0x88, 0xB0, 0xD8, 16),
- VT8500_BANK(0x500, 0x504, 0x508, 0x50C, 6),
- },
-};
-
-/*
- * No information about which bits are valid so we just make
- * them all available until its figured out.
- */
-static struct vt8500_gpio_data wm8650_data = {
- .num_banks = 9,
- .banks = {
- VT8500_BANK(0x40, 0x80, 0xC0, 0x00, 32),
- VT8500_BANK(0x44, 0x84, 0xC4, 0x04, 32),
- VT8500_BANK(0x48, 0x88, 0xC8, 0x08, 32),
- VT8500_BANK(0x4C, 0x8C, 0xCC, 0x0C, 32),
- VT8500_BANK(0x50, 0x90, 0xD0, 0x10, 32),
- VT8500_BANK(0x54, 0x94, 0xD4, 0x14, 32),
- VT8500_BANK(0x58, 0x98, 0xD8, 0x18, 32),
- VT8500_BANK(0x5C, 0x9C, 0xDC, 0x1C, 32),
- VT8500_BANK(0x7C, 0xBC, 0xFC, 0x3C, 32),
- VT8500_BANK(0x500, 0x504, 0x508, 0x50C, 6),
- },
-};
-
-struct vt8500_gpio_chip {
- struct gpio_chip chip;
-
- const struct vt8500_gpio_bank_regoffsets *regs;
- void __iomem *base;
-};
-
-struct vt8500_data {
- struct vt8500_gpio_chip *chip;
- void __iomem *iobase;
- int num_banks;
-};
-
-
-#define to_vt8500(__chip) container_of(__chip, struct vt8500_gpio_chip, chip)
-
-static int vt8500_gpio_request(struct gpio_chip *chip, unsigned offset)
-{
- u32 val;
- struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
-
- if (vt8500_chip->regs->en == NO_REG)
- return 0;
-
- val = readl_relaxed(vt8500_chip->base + vt8500_chip->regs->en);
- val |= BIT(offset);
- writel_relaxed(val, vt8500_chip->base + vt8500_chip->regs->en);
-
- return 0;
-}
-
-static void vt8500_gpio_free(struct gpio_chip *chip, unsigned offset)
-{
- struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
- u32 val;
-
- if (vt8500_chip->regs->en == NO_REG)
- return;
-
- val = readl_relaxed(vt8500_chip->base + vt8500_chip->regs->en);
- val &= ~BIT(offset);
- writel_relaxed(val, vt8500_chip->base + vt8500_chip->regs->en);
-}
-
-static int vt8500_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
-{
- struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
-
- u32 val = readl_relaxed(vt8500_chip->base + vt8500_chip->regs->dir);
- val &= ~BIT(offset);
- writel_relaxed(val, vt8500_chip->base + vt8500_chip->regs->dir);
-
- return 0;
-}
-
-static int vt8500_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
- int value)
-{
- struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
-
- u32 val = readl_relaxed(vt8500_chip->base + vt8500_chip->regs->dir);
- val |= BIT(offset);
- writel_relaxed(val, vt8500_chip->base + vt8500_chip->regs->dir);
-
- if (value) {
- val = readl_relaxed(vt8500_chip->base +
- vt8500_chip->regs->data_out);
- val |= BIT(offset);
- writel_relaxed(val, vt8500_chip->base +
- vt8500_chip->regs->data_out);
- }
- return 0;
-}
-
-static int vt8500_gpio_get_value(struct gpio_chip *chip, unsigned offset)
-{
- struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
-
- return (readl_relaxed(vt8500_chip->base + vt8500_chip->regs->data_in) >>
- offset) & 1;
-}
-
-static void vt8500_gpio_set_value(struct gpio_chip *chip, unsigned offset,
- int value)
-{
- struct vt8500_gpio_chip *vt8500_chip = to_vt8500(chip);
-
- u32 val = readl_relaxed(vt8500_chip->base +
- vt8500_chip->regs->data_out);
- if (value)
- val |= BIT(offset);
- else
- val &= ~BIT(offset);
-
- writel_relaxed(val, vt8500_chip->base + vt8500_chip->regs->data_out);
-}
-
-static int vt8500_of_xlate(struct gpio_chip *gc,
- const struct of_phandle_args *gpiospec, u32 *flags)
-{
- /* bank if specificed in gpiospec->args[0] */
- if (flags)
- *flags = gpiospec->args[2];
-
- return gpiospec->args[1];
-}
-
-static int vt8500_add_chips(struct platform_device *pdev, void __iomem *base,
- const struct vt8500_gpio_data *data)
-{
- struct vt8500_data *priv;
- struct vt8500_gpio_chip *vtchip;
- struct gpio_chip *chip;
- int i;
- int pin_cnt = 0;
-
- priv = devm_kzalloc(&pdev->dev, sizeof(struct vt8500_data), GFP_KERNEL);
- if (!priv) {
- dev_err(&pdev->dev, "failed to allocate memory\n");
- return -ENOMEM;
- }
-
- priv->chip = devm_kzalloc(&pdev->dev,
- sizeof(struct vt8500_gpio_chip) * data->num_banks,
- GFP_KERNEL);
- if (!priv->chip) {
- dev_err(&pdev->dev, "failed to allocate chip memory\n");
- return -ENOMEM;
- }
-
- priv->iobase = base;
- priv->num_banks = data->num_banks;
- platform_set_drvdata(pdev, priv);
-
- vtchip = priv->chip;
-
- for (i = 0; i < data->num_banks; i++) {
- vtchip[i].base = base;
- vtchip[i].regs = &data->banks[i];
-
- chip = &vtchip[i].chip;
-
- chip->of_xlate = vt8500_of_xlate;
- chip->of_gpio_n_cells = 3;
- chip->of_node = pdev->dev.of_node;
-
- chip->request = vt8500_gpio_request;
- chip->free = vt8500_gpio_free;
- chip->direction_input = vt8500_gpio_direction_input;
- chip->direction_output = vt8500_gpio_direction_output;
- chip->get = vt8500_gpio_get_value;
- chip->set = vt8500_gpio_set_value;
- chip->can_sleep = 0;
- chip->base = pin_cnt;
- chip->ngpio = data->banks[i].ngpio;
-
- pin_cnt += data->banks[i].ngpio;
-
- gpiochip_add(chip);
- }
- return 0;
-}
-
-static struct of_device_id vt8500_gpio_dt_ids[] = {
- { .compatible = "via,vt8500-gpio", .data = &vt8500_data, },
- { .compatible = "wm,wm8505-gpio", .data = &wm8505_data, },
- { .compatible = "wm,wm8650-gpio", .data = &wm8650_data, },
- { /* Sentinel */ },
-};
-
-static int vt8500_gpio_probe(struct platform_device *pdev)
-{
- int ret;
- void __iomem *gpio_base;
- struct resource *res;
- const struct of_device_id *of_id =
- of_match_device(vt8500_gpio_dt_ids, &pdev->dev);
-
- if (!of_id) {
- dev_err(&pdev->dev, "No matching driver data\n");
- return -ENODEV;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "Unable to get IO resource\n");
- return -ENODEV;
- }
-
- gpio_base = devm_request_and_ioremap(&pdev->dev, res);
- if (!gpio_base) {
- dev_err(&pdev->dev, "Unable to map GPIO registers\n");
- return -ENOMEM;
- }
-
- ret = vt8500_add_chips(pdev, gpio_base, of_id->data);
-
- return ret;
-}
-
-static int vt8500_gpio_remove(struct platform_device *pdev)
-{
- int i;
- int ret;
- struct vt8500_data *priv = platform_get_drvdata(pdev);
- struct vt8500_gpio_chip *vtchip = priv->chip;
-
- for (i = 0; i < priv->num_banks; i++) {
- ret = gpiochip_remove(&vtchip[i].chip);
- if (ret)
- dev_warn(&pdev->dev, "gpiochip_remove returned %d\n",
- ret);
- }
-
- return 0;
-}
-
-static struct platform_driver vt8500_gpio_driver = {
- .probe = vt8500_gpio_probe,
- .remove = vt8500_gpio_remove,
- .driver = {
- .name = "vt8500-gpio",
- .owner = THIS_MODULE,
- .of_match_table = vt8500_gpio_dt_ids,
- },
-};
-
-module_platform_driver(vt8500_gpio_driver);
-
-MODULE_DESCRIPTION("VT8500 GPIO Driver");
-MODULE_AUTHOR("Tony Prisk <linux@prisktech.co.nz>");
-MODULE_LICENSE("GPL v2");
-MODULE_DEVICE_TABLE(of, vt8500_gpio_dt_ids);
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 5150df6cba08..465f4ca57e80 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -203,22 +203,11 @@ static void of_gpiochip_add_pin_range(struct gpio_chip *chip)
if (!pctldev)
break;
- /*
- * This assumes that the n GPIO pins are consecutive in the
- * GPIO number space, and that the pins are also consecutive
- * in their local number space. Currently it is not possible
- * to add different ranges for one and the same GPIO chip,
- * as the code assumes that we have one consecutive range
- * on both, mapping 1-to-1.
- *
- * TODO: make the OF bindings handle multiple sparse ranges
- * on the same GPIO chip.
- */
ret = gpiochip_add_pin_range(chip,
pinctrl_dev_get_devname(pctldev),
- 0, /* offset in gpiochip */
pinspec.args[0],
- pinspec.args[1]);
+ pinspec.args[1],
+ pinspec.args[2]);
if (ret)
break;
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-01 00:37:47 +0000