diff options
Diffstat (limited to 'drivers/of/gpio.c')
| -rw-r--r-- | drivers/of/gpio.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/of/gpio.c b/drivers/of/gpio.c index fde53a3a45a3..c8618d3282cf 100644 --- a/drivers/of/gpio.c +++ b/drivers/of/gpio.c @@ -46,7 +46,7 @@ int of_get_gpio_flags(struct device_node *np, int index, goto err0; } - gc = gpio_np->data; + gc = of_node_to_gpiochip(gpio_np); if (!gc) { pr_debug("%s: gpio controller %s isn't registered\n", np->full_name, gpio_np->full_name); @@ -193,7 +193,6 @@ int of_mm_gpiochip_add(struct device_node *np, if (mm_gc->save_regs) mm_gc->save_regs(mm_gc); - np->data = &mm_gc->gc; mm_gc->gc.of_node = np; ret = gpiochip_add(gc); @@ -207,7 +206,6 @@ int of_mm_gpiochip_add(struct device_node *np, np->full_name, gc->base); return 0; err2: - np->data = NULL; iounmap(mm_gc->regs); err1: kfree(gc->label); @@ -217,3 +215,14 @@ err0: return ret; } EXPORT_SYMBOL(of_mm_gpiochip_add); + +/* Private function for resolving node pointer to gpio_chip */ +static int of_gpiochip_is_match(struct gpio_chip *chip, void *data) +{ + return chip->of_node == data; +} + +struct gpio_chip *of_node_to_gpiochip(struct device_node *np) +{ + return gpiochip_find(np, of_gpiochip_is_match); +} |