From: k00278426 <kong.kongxinwei@xxxxxxxxxxxxx> Some gpio controller dts nodes has no "gpio-range" property will cause gpio request fail(return -517). Maybe in this case gpio request shouldn't go into pinctrl subsystem. This patch try to resolve this gpio request issue. Signed-off-by: k00278426 <kong.kongxinwei@xxxxxxxxxxxxx> Signed-off-by: Yunlei He <heyunlei@xxxxxxxxxx> --- drivers/gpio/gpio-pl061.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c index 84b49cf..37ffe38 100644 --- a/drivers/gpio/gpio-pl061.c +++ b/drivers/gpio/gpio-pl061.c @@ -24,6 +24,7 @@ #include <linux/slab.h> #include <linux/pinctrl/consumer.h> #include <linux/pm.h> +#include <linux/of_address.h> #define GPIODIR 0x400 #define GPIOIS 0x404 @@ -264,8 +265,10 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id) spin_lock_init(&chip->lock); - chip->gc.request = pl061_gpio_request; - chip->gc.free = pl061_gpio_free; + if (of_get_property(dev->of_node, "gpio-ranges", NULL)) { + chip->gc.request = pl061_gpio_request; + chip->gc.free = pl061_gpio_free; + } chip->gc.direction_input = pl061_direction_input; chip->gc.direction_output = pl061_direction_output; chip->gc.get = pl061_get_value; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html