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authorGrant Likely <grant.likely@secretlab.ca>2010-05-22 00:36:56 -0600
committerGrant Likely <grant.likely@secretlab.ca>2010-05-22 00:36:56 -0600
commitcf9b59e9d3e008591d1f54830f570982bb307a0d (patch)
tree113478ce8fd8c832ba726ffdf59b82cb46356476 /drivers/gpio
parent44504b2bebf8b5823c59484e73096a7d6574471d (diff)
parentf4b87dee923342505e1ddba8d34ce9de33e75050 (diff)
Merge remote branch 'origin' into secretlab/next-devicetree
Merging in current state of Linus' tree to deal with merge conflicts and build failures in vio.c after merge. Conflicts: drivers/i2c/busses/i2c-cpm.c drivers/i2c/busses/i2c-mpc.c drivers/net/gianfar.c Also fixed up one line in arch/powerpc/kernel/vio.c to use the correct node pointer. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpiolib.c5
-rw-r--r--drivers/gpio/it8761e_gpio.c18
-rw-r--r--drivers/gpio/pca953x.c14
-rw-r--r--drivers/gpio/pl061.c14
-rw-r--r--drivers/gpio/wm8994-gpio.c12
5 files changed, 47 insertions, 16 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 76be229c814d..cae1b8c5b08c 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -399,7 +399,7 @@ static int gpio_setup_irq(struct gpio_desc *desc, struct device *dev,
goto free_id;
}
- pdesc->value_sd = sysfs_get_dirent(dev->kobj.sd, "value");
+ pdesc->value_sd = sysfs_get_dirent(dev->kobj.sd, NULL, "value");
if (!pdesc->value_sd) {
ret = -ENODEV;
goto free_id;
@@ -416,7 +416,8 @@ static int gpio_setup_irq(struct gpio_desc *desc, struct device *dev,
return 0;
free_sd:
- sysfs_put(pdesc->value_sd);
+ if (pdesc)
+ sysfs_put(pdesc->value_sd);
free_id:
idr_remove(&pdesc_idr, id);
desc->flags &= GPIO_FLAGS_MASK;
diff --git a/drivers/gpio/it8761e_gpio.c b/drivers/gpio/it8761e_gpio.c
index 753219cf993a..41a9388f2fde 100644
--- a/drivers/gpio/it8761e_gpio.c
+++ b/drivers/gpio/it8761e_gpio.c
@@ -80,8 +80,8 @@ static int it8761e_gpio_get(struct gpio_chip *gc, unsigned gpio_num)
u16 reg;
u8 bit;
- bit = gpio_num % 7;
- reg = (gpio_num >= 7) ? gpio_ba + 1 : gpio_ba;
+ bit = gpio_num % 8;
+ reg = (gpio_num >= 8) ? gpio_ba + 1 : gpio_ba;
return !!(inb(reg) & (1 << bit));
}
@@ -91,8 +91,8 @@ static int it8761e_gpio_direction_in(struct gpio_chip *gc, unsigned gpio_num)
u8 curr_dirs;
u8 io_reg, bit;
- bit = gpio_num % 7;
- io_reg = (gpio_num >= 7) ? GPIO2X_IO : GPIO1X_IO;
+ bit = gpio_num % 8;
+ io_reg = (gpio_num >= 8) ? GPIO2X_IO : GPIO1X_IO;
spin_lock(&sio_lock);
@@ -116,8 +116,8 @@ static void it8761e_gpio_set(struct gpio_chip *gc,
u8 curr_vals, bit;
u16 reg;
- bit = gpio_num % 7;
- reg = (gpio_num >= 7) ? gpio_ba + 1 : gpio_ba;
+ bit = gpio_num % 8;
+ reg = (gpio_num >= 8) ? gpio_ba + 1 : gpio_ba;
spin_lock(&sio_lock);
@@ -135,8 +135,8 @@ static int it8761e_gpio_direction_out(struct gpio_chip *gc,
{
u8 curr_dirs, io_reg, bit;
- bit = gpio_num % 7;
- io_reg = (gpio_num >= 7) ? GPIO2X_IO : GPIO1X_IO;
+ bit = gpio_num % 8;
+ io_reg = (gpio_num >= 8) ? GPIO2X_IO : GPIO1X_IO;
it8761e_gpio_set(gc, gpio_num, val);
@@ -200,7 +200,7 @@ static int __init it8761e_gpio_init(void)
return -EBUSY;
it8761e_gpio_chip.base = -1;
- it8761e_gpio_chip.ngpio = 14;
+ it8761e_gpio_chip.ngpio = 16;
err = gpiochip_add(&it8761e_gpio_chip);
if (err < 0)
diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c
index 1db114b09990..f156ab3bb6ed 100644
--- a/drivers/gpio/pca953x.c
+++ b/drivers/gpio/pca953x.c
@@ -252,6 +252,18 @@ static void pca953x_irq_bus_lock(unsigned int irq)
static void pca953x_irq_bus_sync_unlock(unsigned int irq)
{
struct pca953x_chip *chip = get_irq_chip_data(irq);
+ uint16_t new_irqs;
+ uint16_t level;
+
+ /* Look for any newly setup interrupt */
+ new_irqs = chip->irq_trig_fall | chip->irq_trig_raise;
+ new_irqs &= ~chip->reg_direction;
+
+ while (new_irqs) {
+ level = __ffs(new_irqs);
+ pca953x_gpio_direction_input(&chip->gpio_chip, level);
+ new_irqs &= ~(1 << level);
+ }
mutex_unlock(&chip->irq_lock);
}
@@ -278,7 +290,7 @@ static int pca953x_irq_set_type(unsigned int irq, unsigned int type)
else
chip->irq_trig_raise &= ~mask;
- return pca953x_gpio_direction_input(&chip->gpio_chip, level);
+ return 0;
}
static struct irq_chip pca953x_irq_chip = {
diff --git a/drivers/gpio/pl061.c b/drivers/gpio/pl061.c
index 5ad8f778ced4..105701a1f05b 100644
--- a/drivers/gpio/pl061.c
+++ b/drivers/gpio/pl061.c
@@ -91,6 +91,12 @@ static int pl061_direction_output(struct gpio_chip *gc, unsigned offset,
gpiodir = readb(chip->base + GPIODIR);
gpiodir |= 1 << offset;
writeb(gpiodir, chip->base + GPIODIR);
+
+ /*
+ * gpio value is set again, because pl061 doesn't allow to set value of
+ * a gpio pin before configuring it in OUT mode.
+ */
+ writeb(!!value << offset, chip->base + (1 << (offset + 2)));
spin_unlock_irqrestore(&chip->lock, flags);
return 0;
@@ -183,7 +189,7 @@ static int pl061_irq_type(unsigned irq, unsigned trigger)
gpioibe &= ~(1 << offset);
if (trigger & IRQ_TYPE_EDGE_RISING)
gpioiev |= 1 << offset;
- else
+ else if (trigger & IRQ_TYPE_EDGE_FALLING)
gpioiev &= ~(1 << offset);
}
writeb(gpioibe, chip->base + GPIOIBE);
@@ -204,7 +210,7 @@ static struct irq_chip pl061_irqchip = {
static void pl061_irq_handler(unsigned irq, struct irq_desc *desc)
{
- struct list_head *chip_list = get_irq_chip_data(irq);
+ struct list_head *chip_list = get_irq_data(irq);
struct list_head *ptr;
struct pl061_gpio *chip;
@@ -297,9 +303,9 @@ static int __init pl061_probe(struct amba_device *dev, struct amba_id *id)
goto iounmap;
}
INIT_LIST_HEAD(chip_list);
- set_irq_chip_data(irq, chip_list);
+ set_irq_data(irq, chip_list);
} else
- chip_list = get_irq_chip_data(irq);
+ chip_list = get_irq_data(irq);
list_add(&chip->list, chip_list);
for (i = 0; i < PL061_GPIO_NR; i++) {
diff --git a/drivers/gpio/wm8994-gpio.c b/drivers/gpio/wm8994-gpio.c
index 7607cc61e1dd..2ac9a16d3daa 100644
--- a/drivers/gpio/wm8994-gpio.c
+++ b/drivers/gpio/wm8994-gpio.c
@@ -81,6 +81,18 @@ static void wm8994_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
wm8994_set_bits(wm8994, WM8994_GPIO_1 + offset, WM8994_GPN_LVL, value);
}
+static int wm8994_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+ struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip);
+ struct wm8994 *wm8994 = wm8994_gpio->wm8994;
+
+ if (!wm8994->irq_base)
+ return -EINVAL;
+
+ return wm8994->irq_base + offset;
+}
+
+
#ifdef CONFIG_DEBUG_FS
static void wm8994_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
{