[PATCH 08/21] gpio: Probe GPIO drivers on demand

Tomeu Vizoso
2015-05-25T15:05:07Z

Ensure that the device corresponding to the DT node of the gpiochip has
been registered.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
---
drivers/gpio/gpiolib-of.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index a6c67c6..190183d 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -20,6 +20,7 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_gpio.h>
+#include <linux/of_platform.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/slab.h>
#include <linux/gpio/machine.h>
@@ -95,6 +96,8 @@ struct gpio_desc *of_get_named_gpiod_flags(struct device_node *np,
return ERR_PTR(ret);
}

+ of_platform_device_ensure(gg_data.gpiospec.np);
+
gpiochip_find(&gg_data, of_gpiochip_find_and_xlate);

of_node_put(gg_data.gpiospec.np);
--
2.4.1