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Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6

Browse source 
* 'gpio/next' of git://git.secretlab.ca/git/linux-2.6:
  gpio/via: rename VIA local config struct
  basic_mmio_gpio: split into a gpio library and platform device
  gpio: remove some legacy comments in build files
  gpio: add trace events for setting direction and value
  gpio/pca953x: Use handle_simple_irq instead of handle_edge_irq
  gpiolib: export gpiochip_find
  gpio: remove redundant Kconfig depends on GPIOLIB
  basic_mmio_gpio: convert to non-__raw* accessors
  basic_mmio_gpio: support direction registers
  basic_mmio_gpio: support different input/output registers
  basic_mmio_gpio: detect output method at probe time
  basic_mmio_gpio: request register regions
  basic_mmio_gpio: allow overriding number of gpio
  basic_mmio_gpio: convert to platform_{get,set}_drvdata()
  basic_mmio_gpio: remove runtime width/endianness evaluation
This commit is contained in:
Linus Torvalds 2011-05-26 12:14:41 -07:00
commit 8b29336fe0
8 changed files with 555 additions and 174 deletions
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49
drivers/video/via/via-gpio.c
View file

@ -145,7 +145,7 @@ static int via_gpio_get(struct gpio_chip *chip, unsigned int nr)
}
static struct viafb_gpio_cfg gpio_config = {
static struct viafb_gpio_cfg viafb_gpio_config = {
.gpio_chip = {
.label = "VIAFB onboard GPIO",
.owner = THIS_MODULE,
@ -183,8 +183,8 @@ static int viafb_gpio_resume(void *private)
{
int i;
for (i = 0; i < gpio_config.gpio_chip.ngpio; i += 2)
viafb_gpio_enable(gpio_config.active_gpios[i]);
for (i = 0; i < viafb_gpio_config.gpio_chip.ngpio; i += 2)
viafb_gpio_enable(viafb_gpio_config.active_gpios[i]);
return 0;
}
@ -201,9 +201,9 @@ int viafb_gpio_lookup(const char *name)
{
int i;
for (i = 0; i < gpio_config.gpio_chip.ngpio; i++)
if (!strcmp(name, gpio_config.active_gpios[i]->vg_name))
return gpio_config.gpio_chip.base + i;
for (i = 0; i < viafb_gpio_config.gpio_chip.ngpio; i++)
if (!strcmp(name, viafb_gpio_config.active_gpios[i]->vg_name))
return viafb_gpio_config.gpio_chip.base + i;
return -1;
}
EXPORT_SYMBOL_GPL(viafb_gpio_lookup);
@ -229,14 +229,15 @@ static __devinit int viafb_gpio_probe(struct platform_device *platdev)
for (gpio = viafb_all_gpios;
gpio < viafb_all_gpios + VIAFB_NUM_GPIOS; gpio++)
if (gpio->vg_port_index == port_cfg[i].ioport_index) {
gpio_config.active_gpios[ngpio] = gpio;
gpio_config.gpio_names[ngpio] = gpio->vg_name;
viafb_gpio_config.active_gpios[ngpio] = gpio;
viafb_gpio_config.gpio_names[ngpio] =
gpio->vg_name;
ngpio++;
}
}
gpio_config.gpio_chip.ngpio = ngpio;
gpio_config.gpio_chip.names = gpio_config.gpio_names;
gpio_config.vdev = vdev;
viafb_gpio_config.gpio_chip.ngpio = ngpio;
viafb_gpio_config.gpio_chip.names = viafb_gpio_config.gpio_names;
viafb_gpio_config.vdev = vdev;
if (ngpio == 0) {
printk(KERN_INFO "viafb: no GPIOs configured\n");
return 0;
@ -245,18 +246,18 @@ static __devinit int viafb_gpio_probe(struct platform_device *platdev)
* Enable the ports. They come in pairs, with a single
* enable bit for both.
*/
spin_lock_irqsave(&gpio_config.vdev->reg_lock, flags);
spin_lock_irqsave(&viafb_gpio_config.vdev->reg_lock, flags);
for (i = 0; i < ngpio; i += 2)
viafb_gpio_enable(gpio_config.active_gpios[i]);
spin_unlock_irqrestore(&gpio_config.vdev->reg_lock, flags);
viafb_gpio_enable(viafb_gpio_config.active_gpios[i]);
spin_unlock_irqrestore(&viafb_gpio_config.vdev->reg_lock, flags);
/*
* Get registered.
*/
gpio_config.gpio_chip.base = -1; /* Dynamic */
ret = gpiochip_add(&gpio_config.gpio_chip);
viafb_gpio_config.gpio_chip.base = -1; /* Dynamic */
ret = gpiochip_add(&viafb_gpio_config.gpio_chip);
if (ret) {
printk(KERN_ERR "viafb: failed to add gpios (%d)\n", ret);
gpio_config.gpio_chip.ngpio = 0;
viafb_gpio_config.gpio_chip.ngpio = 0;
}
#ifdef CONFIG_PM
viafb_pm_register(&viafb_gpio_pm_hooks);
@ -277,8 +278,8 @@ static int viafb_gpio_remove(struct platform_device *platdev)
/*
* Get unregistered.
*/
if (gpio_config.gpio_chip.ngpio > 0) {
ret = gpiochip_remove(&gpio_config.gpio_chip);
if (viafb_gpio_config.gpio_chip.ngpio > 0) {
ret = gpiochip_remove(&viafb_gpio_config.gpio_chip);
if (ret) { /* Somebody still using it? */
printk(KERN_ERR "Viafb: GPIO remove failed\n");
return ret;
@ -287,11 +288,11 @@ static int viafb_gpio_remove(struct platform_device *platdev)
/*
* Disable the ports.
*/
spin_lock_irqsave(&gpio_config.vdev->reg_lock, flags);
for (i = 0; i < gpio_config.gpio_chip.ngpio; i += 2)
viafb_gpio_disable(gpio_config.active_gpios[i]);
gpio_config.gpio_chip.ngpio = 0;
spin_unlock_irqrestore(&gpio_config.vdev->reg_lock, flags);
spin_lock_irqsave(&viafb_gpio_config.vdev->reg_lock, flags);
for (i = 0; i < viafb_gpio_config.gpio_chip.ngpio; i += 2)
viafb_gpio_disable(viafb_gpio_config.active_gpios[i]);
viafb_gpio_config.gpio_chip.ngpio = 0;
spin_unlock_irqrestore(&viafb_gpio_config.vdev->reg_lock, flags);
return ret;
}