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-rw-r--r--drivers/gpio/Makefile2
-rw-r--r--drivers/gpio/gpio-da9052.c21
-rw-r--r--drivers/gpio/gpio-ml-ioh.c32
-rw-r--r--drivers/gpio/gpio-mpc8xxx.c18
-rw-r--r--drivers/gpio/gpio-omap.c59
-rw-r--r--drivers/gpio/gpio-pca953x.c15
-rw-r--r--drivers/gpio/gpio-pl061.c4
7 files changed, 93 insertions, 58 deletions
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index dbcb0bcfd8d..4e018d6a763 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -18,7 +18,7 @@ obj-$(CONFIG_ARCH_DAVINCI) += gpio-davinci.o
obj-$(CONFIG_GPIO_EP93XX) += gpio-ep93xx.o
obj-$(CONFIG_GPIO_IT8761E) += gpio-it8761e.o
obj-$(CONFIG_GPIO_JANZ_TTL) += gpio-janz-ttl.o
-obj-$(CONFIG_MACH_KS8695) += gpio-ks8695.o
+obj-$(CONFIG_ARCH_KS8695) += gpio-ks8695.o
obj-$(CONFIG_GPIO_LANGWELL) += gpio-langwell.o
obj-$(CONFIG_ARCH_LPC32XX) += gpio-lpc32xx.o
obj-$(CONFIG_GPIO_MAX730X) += gpio-max730x.o
diff --git a/drivers/gpio/gpio-da9052.c b/drivers/gpio/gpio-da9052.c
index 038f5eb8b13..f8ce29ef9f8 100644
--- a/drivers/gpio/gpio-da9052.c
+++ b/drivers/gpio/gpio-da9052.c
@@ -22,7 +22,6 @@
#include <linux/mfd/da9052/da9052.h>
#include <linux/mfd/da9052/reg.h>
#include <linux/mfd/da9052/pdata.h>
-#include <linux/mfd/da9052/gpio.h>
#define DA9052_INPUT 1
#define DA9052_OUTPUT_OPENDRAIN 2
@@ -43,6 +42,9 @@
#define DA9052_GPIO_MASK_UPPER_NIBBLE 0xF0
#define DA9052_GPIO_MASK_LOWER_NIBBLE 0x0F
#define DA9052_GPIO_NIBBLE_SHIFT 4
+#define DA9052_IRQ_GPI0 16
+#define DA9052_GPIO_ODD_SHIFT 7
+#define DA9052_GPIO_EVEN_SHIFT 3
struct da9052_gpio {
struct da9052 *da9052;
@@ -104,33 +106,26 @@ static int da9052_gpio_get(struct gpio_chip *gc, unsigned offset)
static void da9052_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
{
struct da9052_gpio *gpio = to_da9052_gpio(gc);
- unsigned char register_value = 0;
int ret;
if (da9052_gpio_port_odd(offset)) {
- if (value) {
- register_value = DA9052_GPIO_ODD_PORT_MODE;
ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
DA9052_GPIO_0_1_REG,
DA9052_GPIO_ODD_PORT_MODE,
- register_value);
+ value << DA9052_GPIO_ODD_SHIFT);
if (ret != 0)
dev_err(gpio->da9052->dev,
"Failed to updated gpio odd reg,%d",
ret);
- }
} else {
- if (value) {
- register_value = DA9052_GPIO_EVEN_PORT_MODE;
ret = da9052_reg_update(gpio->da9052, (offset >> 1) +
DA9052_GPIO_0_1_REG,
DA9052_GPIO_EVEN_PORT_MODE,
- register_value);
+ value << DA9052_GPIO_EVEN_SHIFT);
if (ret != 0)
dev_err(gpio->da9052->dev,
"Failed to updated gpio even reg,%d",
ret);
- }
}
}
@@ -201,9 +196,9 @@ static struct gpio_chip reference_gp __devinitdata = {
.direction_input = da9052_gpio_direction_input,
.direction_output = da9052_gpio_direction_output,
.to_irq = da9052_gpio_to_irq,
- .can_sleep = 1;
- .ngpio = 16;
- .base = -1;
+ .can_sleep = 1,
+ .ngpio = 16,
+ .base = -1,
};
static int __devinit da9052_gpio_probe(struct platform_device *pdev)
diff --git a/drivers/gpio/gpio-ml-ioh.c b/drivers/gpio/gpio-ml-ioh.c
index ea8e7386925..461958fc226 100644
--- a/drivers/gpio/gpio-ml-ioh.c
+++ b/drivers/gpio/gpio-ml-ioh.c
@@ -332,6 +332,34 @@ static void ioh_irq_mask(struct irq_data *d)
&chip->reg->regs[chip->ch].imask);
}
+static void ioh_irq_disable(struct irq_data *d)
+{
+ struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+ struct ioh_gpio *chip = gc->private;
+ unsigned long flags;
+ u32 ien;
+
+ spin_lock_irqsave(&chip->spinlock, flags);
+ ien = ioread32(&chip->reg->regs[chip->ch].ien);
+ ien &= ~(1 << (d->irq - chip->irq_base));
+ iowrite32(ien, &chip->reg->regs[chip->ch].ien);
+ spin_unlock_irqrestore(&chip->spinlock, flags);
+}
+
+static void ioh_irq_enable(struct irq_data *d)
+{
+ struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+ struct ioh_gpio *chip = gc->private;
+ unsigned long flags;
+ u32 ien;
+
+ spin_lock_irqsave(&chip->spinlock, flags);
+ ien = ioread32(&chip->reg->regs[chip->ch].ien);
+ ien |= 1 << (d->irq - chip->irq_base);
+ iowrite32(ien, &chip->reg->regs[chip->ch].ien);
+ spin_unlock_irqrestore(&chip->spinlock, flags);
+}
+
static irqreturn_t ioh_gpio_handler(int irq, void *dev_id)
{
struct ioh_gpio *chip = dev_id;
@@ -339,7 +367,7 @@ static irqreturn_t ioh_gpio_handler(int irq, void *dev_id)
int i, j;
int ret = IRQ_NONE;
- for (i = 0; i < 8; i++) {
+ for (i = 0; i < 8; i++, chip++) {
reg_val = ioread32(&chip->reg->regs[i].istatus);
for (j = 0; j < num_ports[i]; j++) {
if (reg_val & BIT(j)) {
@@ -370,6 +398,8 @@ static __devinit void ioh_gpio_alloc_generic_chip(struct ioh_gpio *chip,
ct->chip.irq_mask = ioh_irq_mask;
ct->chip.irq_unmask = ioh_irq_unmask;
ct->chip.irq_set_type = ioh_irq_type;
+ ct->chip.irq_disable = ioh_irq_disable;
+ ct->chip.irq_enable = ioh_irq_enable;
irq_setup_generic_chip(gc, IRQ_MSK(num), IRQ_GC_INIT_MASK_CACHE,
IRQ_NOREQUEST | IRQ_NOPROBE, 0);
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index ec3fcf0a7e1..5cd04b65c55 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -132,6 +132,15 @@ static int mpc8xxx_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val
return 0;
}
+static int mpc5121_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
+{
+ /* GPIO 28..31 are input only on MPC5121 */
+ if (gpio >= 28)
+ return -EINVAL;
+
+ return mpc8xxx_gpio_dir_out(gc, gpio, val);
+}
+
static int mpc8xxx_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc);
@@ -340,11 +349,10 @@ static void __init mpc8xxx_add_controller(struct device_node *np)
mm_gc->save_regs = mpc8xxx_gpio_save_regs;
gc->ngpio = MPC8XXX_GPIO_PINS;
gc->direction_input = mpc8xxx_gpio_dir_in;
- gc->direction_output = mpc8xxx_gpio_dir_out;
- if (of_device_is_compatible(np, "fsl,mpc8572-gpio"))
- gc->get = mpc8572_gpio_get;
- else
- gc->get = mpc8xxx_gpio_get;
+ gc->direction_output = of_device_is_compatible(np, "fsl,mpc5121-gpio") ?
+ mpc5121_gpio_dir_out : mpc8xxx_gpio_dir_out;
+ gc->get = of_device_is_compatible(np, "fsl,mpc8572-gpio") ?
+ mpc8572_gpio_get : mpc8xxx_gpio_get;
gc->set = mpc8xxx_gpio_set;
gc->to_irq = mpc8xxx_gpio_to_irq;
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index 0e49d87f6c6..0b056297917 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -148,13 +148,17 @@ static int _get_gpio_dataout(struct gpio_bank *bank, int gpio)
return (__raw_readl(reg) & GPIO_BIT(bank, gpio)) != 0;
}
-#define MOD_REG_BIT(reg, bit_mask, set) \
-do { \
- int l = __raw_readl(base + reg); \
- if (set) l |= bit_mask; \
- else l &= ~bit_mask; \
- __raw_writel(l, base + reg); \
-} while(0)
+static inline void _gpio_rmw(void __iomem *base, u32 reg, u32 mask, bool set)
+{
+ int l = __raw_readl(base + reg);
+
+ if (set)
+ l |= mask;
+ else
+ l &= ~mask;
+
+ __raw_writel(l, base + reg);
+}
/**
* _set_gpio_debounce - low level gpio debounce time
@@ -210,28 +214,28 @@ static inline void set_24xx_gpio_triggering(struct gpio_bank *bank, int gpio,
u32 gpio_bit = 1 << gpio;
if (cpu_is_omap44xx()) {
- MOD_REG_BIT(OMAP4_GPIO_LEVELDETECT0, gpio_bit,
- trigger & IRQ_TYPE_LEVEL_LOW);
- MOD_REG_BIT(OMAP4_GPIO_LEVELDETECT1, gpio_bit,
- trigger & IRQ_TYPE_LEVEL_HIGH);
- MOD_REG_BIT(OMAP4_GPIO_RISINGDETECT, gpio_bit,
- trigger & IRQ_TYPE_EDGE_RISING);
- MOD_REG_BIT(OMAP4_GPIO_FALLINGDETECT, gpio_bit,
- trigger & IRQ_TYPE_EDGE_FALLING);
+ _gpio_rmw(base, OMAP4_GPIO_LEVELDETECT0, gpio_bit,
+ trigger & IRQ_TYPE_LEVEL_LOW);
+ _gpio_rmw(base, OMAP4_GPIO_LEVELDETECT1, gpio_bit,
+ trigger & IRQ_TYPE_LEVEL_HIGH);
+ _gpio_rmw(base, OMAP4_GPIO_RISINGDETECT, gpio_bit,
+ trigger & IRQ_TYPE_EDGE_RISING);
+ _gpio_rmw(base, OMAP4_GPIO_FALLINGDETECT, gpio_bit,
+ trigger & IRQ_TYPE_EDGE_FALLING);
} else {
- MOD_REG_BIT(OMAP24XX_GPIO_LEVELDETECT0, gpio_bit,
- trigger & IRQ_TYPE_LEVEL_LOW);
- MOD_REG_BIT(OMAP24XX_GPIO_LEVELDETECT1, gpio_bit,
- trigger & IRQ_TYPE_LEVEL_HIGH);
- MOD_REG_BIT(OMAP24XX_GPIO_RISINGDETECT, gpio_bit,
- trigger & IRQ_TYPE_EDGE_RISING);
- MOD_REG_BIT(OMAP24XX_GPIO_FALLINGDETECT, gpio_bit,
- trigger & IRQ_TYPE_EDGE_FALLING);
+ _gpio_rmw(base, OMAP24XX_GPIO_LEVELDETECT0, gpio_bit,
+ trigger & IRQ_TYPE_LEVEL_LOW);
+ _gpio_rmw(base, OMAP24XX_GPIO_LEVELDETECT1, gpio_bit,
+ trigger & IRQ_TYPE_LEVEL_HIGH);
+ _gpio_rmw(base, OMAP24XX_GPIO_RISINGDETECT, gpio_bit,
+ trigger & IRQ_TYPE_EDGE_RISING);
+ _gpio_rmw(base, OMAP24XX_GPIO_FALLINGDETECT, gpio_bit,
+ trigger & IRQ_TYPE_EDGE_FALLING);
}
if (likely(!(bank->non_wakeup_gpios & gpio_bit))) {
if (cpu_is_omap44xx()) {
- MOD_REG_BIT(OMAP4_GPIO_IRQWAKEN0, gpio_bit,
- trigger != 0);
+ _gpio_rmw(base, OMAP4_GPIO_IRQWAKEN0, gpio_bit,
+ trigger != 0);
} else {
/*
* GPIO wakeup request can only be generated on edge
@@ -1086,6 +1090,11 @@ omap_mpuio_alloc_gc(struct gpio_bank *bank, unsigned int irq_start,
gc = irq_alloc_generic_chip("MPUIO", 1, irq_start, bank->base,
handle_simple_irq);
+ if (!gc) {
+ dev_err(bank->dev, "Memory alloc failed for gc\n");
+ return;
+ }
+
ct = gc->chip_types;
/* NOTE: No ack required, reading IRQ status clears it. */
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 0550dcb8581..d3f3e8f5456 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -546,7 +546,7 @@ static void pca953x_irq_teardown(struct pca953x_chip *chip)
* Translate OpenFirmware node properties into platform_data
* WARNING: This is DEPRECATED and will be removed eventually!
*/
-void
+static void
pca953x_get_alt_pdata(struct i2c_client *client, int *gpio_base, int *invert)
{
struct device_node *node;
@@ -574,7 +574,7 @@ pca953x_get_alt_pdata(struct i2c_client *client, int *gpio_base, int *invert)
*invert = *val;
}
#else
-void
+static void
pca953x_get_alt_pdata(struct i2c_client *client, int *gpio_base, int *invert)
{
*gpio_base = -1;
@@ -596,9 +596,6 @@ static int __devinit device_pca953x_init(struct pca953x_chip *chip, int invert)
/* set platform specific polarity inversion */
ret = pca953x_write_reg(chip, PCA953X_INVERT, invert);
- if (ret)
- goto out;
- return 0;
out:
return ret;
}
@@ -640,7 +637,7 @@ static int __devinit pca953x_probe(struct i2c_client *client,
struct pca953x_platform_data *pdata;
struct pca953x_chip *chip;
int irq_base=0, invert=0;
- int ret = 0;
+ int ret;
chip = kzalloc(sizeof(struct pca953x_chip), GFP_KERNEL);
if (chip == NULL)
@@ -673,10 +670,10 @@ static int __devinit pca953x_probe(struct i2c_client *client,
pca953x_setup_gpio(chip, id->driver_data & PCA_GPIO_MASK);
if (chip->chip_type == PCA953X_TYPE)
- device_pca953x_init(chip, invert);
- else if (chip->chip_type == PCA957X_TYPE)
- device_pca957x_init(chip, invert);
+ ret = device_pca953x_init(chip, invert);
else
+ ret = device_pca957x_init(chip, invert);
+ if (ret)
goto out_failed;
ret = pca953x_irq_setup(chip, id, irq_base);
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index 093c90bd3c1..4102f63230f 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -238,10 +238,6 @@ static int pl061_probe(struct amba_device *dev, const struct amba_id *id)
int ret, irq, i;
static DECLARE_BITMAP(init_irq, NR_IRQS);
- pdata = dev->dev.platform_data;
- if (pdata == NULL)
- return -ENODEV;
-
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
if (chip == NULL)
return -ENOMEM;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-18 15:29:04 +0000