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path: root/drivers/pinctrl/bcm/pinctrl-bcm2835.c
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Diffstat (limited to 'drivers/pinctrl/bcm/pinctrl-bcm2835.c')
-rw-r--r--drivers/pinctrl/bcm/pinctrl-bcm2835.c44
1 files changed, 26 insertions, 18 deletions
diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
index 2abcc6ce4eba..c4ebfa852b42 100644
--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
@@ -313,7 +313,10 @@ static inline void bcm2835_pinctrl_fsel_set(
static int bcm2835_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
{
- return pinctrl_gpio_direction_input(chip->base + offset);
+ struct bcm2835_pinctrl *pc = gpiochip_get_data(chip);
+
+ bcm2835_pinctrl_fsel_set(pc, offset, BCM2835_FSEL_GPIO_IN);
+ return 0;
}
static int bcm2835_gpio_get(struct gpio_chip *chip, unsigned offset)
@@ -348,8 +351,11 @@ static void bcm2835_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
static int bcm2835_gpio_direction_output(struct gpio_chip *chip,
unsigned offset, int value)
{
- bcm2835_gpio_set(chip, offset, value);
- return pinctrl_gpio_direction_output(chip->base + offset);
+ struct bcm2835_pinctrl *pc = gpiochip_get_data(chip);
+
+ bcm2835_gpio_set_bit(pc, value ? GPSET0 : GPCLR0, offset);
+ bcm2835_pinctrl_fsel_set(pc, offset, BCM2835_FSEL_GPIO_OUT);
+ return 0;
}
static const struct gpio_chip bcm2835_gpio_chip = {
@@ -407,7 +413,7 @@ static void bcm2835_gpio_irq_handler(struct irq_desc *desc)
struct bcm2835_pinctrl *pc = gpiochip_get_data(chip);
struct irq_chip *host_chip = irq_desc_get_chip(desc);
int irq = irq_desc_get_irq(desc);
- int group;
+ int group = 0;
int i;
for (i = 0; i < BCM2835_NUM_IRQS; i++) {
@@ -1222,7 +1228,6 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
pc->gpio_chip = *pdata->gpio_chip;
pc->gpio_chip.parent = dev;
- pc->gpio_chip.of_node = np;
for (i = 0; i < BCM2835_NUM_BANKS; i++) {
unsigned long events;
@@ -1244,6 +1249,18 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
raw_spin_lock_init(&pc->irq_lock[i]);
}
+ pc->pctl_desc = *pdata->pctl_desc;
+ pc->pctl_dev = devm_pinctrl_register(dev, &pc->pctl_desc, pc);
+ if (IS_ERR(pc->pctl_dev)) {
+ gpiochip_remove(&pc->gpio_chip);
+ return PTR_ERR(pc->pctl_dev);
+ }
+
+ pc->gpio_range = *pdata->gpio_range;
+ pc->gpio_range.base = pc->gpio_chip.base;
+ pc->gpio_range.gc = &pc->gpio_chip;
+ pinctrl_add_gpio_range(pc->pctl_dev, &pc->gpio_range);
+
girq = &pc->gpio_chip.irq;
girq->chip = &bcm2835_gpio_irq_chip;
girq->parent_handler = bcm2835_gpio_irq_handler;
@@ -1251,8 +1268,10 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
girq->parents = devm_kcalloc(dev, BCM2835_NUM_IRQS,
sizeof(*girq->parents),
GFP_KERNEL);
- if (!girq->parents)
+ if (!girq->parents) {
+ pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range);
return -ENOMEM;
+ }
if (is_7211) {
pc->wake_irq = devm_kcalloc(dev, BCM2835_NUM_IRQS,
@@ -1307,21 +1326,10 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
err = gpiochip_add_data(&pc->gpio_chip, pc);
if (err) {
dev_err(dev, "could not add GPIO chip\n");
+ pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range);
return err;
}
- pc->pctl_desc = *pdata->pctl_desc;
- pc->pctl_dev = devm_pinctrl_register(dev, &pc->pctl_desc, pc);
- if (IS_ERR(pc->pctl_dev)) {
- gpiochip_remove(&pc->gpio_chip);
- return PTR_ERR(pc->pctl_dev);
- }
-
- pc->gpio_range = *pdata->gpio_range;
- pc->gpio_range.base = pc->gpio_chip.base;
- pc->gpio_range.gc = &pc->gpio_chip;
- pinctrl_add_gpio_range(pc->pctl_dev, &pc->gpio_range);
-
return 0;
}