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| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2012-09-03 09:26:33 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2012-09-03 09:26:33 +0300 |
| commit | c50e86ce7c2961a41f2f7aa6e4fd6c99229ba205 (patch) | |
| tree | 4ea36009719bd8fc523239fe1bdccb90f0dce3ae /drivers/gpio/gpiolib-of.c | |
| parent | 14d33d384693eb6083396199de516fdef320f7af (diff) | |
| parent | 4cbe5a555fa58a79b6ecbb6c531b8bab0650778d (diff) | |
Merge tag 'v3.6-rc4'
Merge 3.6-rc4 to get latest OMAP and device tree fixes.
Diffstat (limited to 'drivers/gpio/gpiolib-of.c')
| -rw-r--r-- | drivers/gpio/gpiolib-of.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index d18068a9f3e..a18c4aa68b1 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -21,7 +21,7 @@ #include <linux/of_gpio.h> #include <linux/slab.h> -/* Private data structure for of_gpiochip_is_match */ +/* Private data structure for of_gpiochip_find_and_xlate */ struct gg_data { enum of_gpio_flags *flags; struct of_phandle_args gpiospec; @@ -62,7 +62,10 @@ static int of_gpiochip_find_and_xlate(struct gpio_chip *gc, void *data) int of_get_named_gpio_flags(struct device_node *np, const char *propname, int index, enum of_gpio_flags *flags) { - struct gg_data gg_data = { .flags = flags, .out_gpio = -ENODEV }; + /* Return -EPROBE_DEFER to support probe() functions to be called + * later when the GPIO actually becomes available + */ + struct gg_data gg_data = { .flags = flags, .out_gpio = -EPROBE_DEFER }; int ret; /* .of_xlate might decide to not fill in the flags, so clear it. */ @@ -73,7 +76,7 @@ int of_get_named_gpio_flags(struct device_node *np, const char *propname, &gg_data.gpiospec); if (ret) { pr_debug("%s: can't parse gpios property\n", __func__); - return -EINVAL; + return ret; } gpiochip_find(&gg_data, of_gpiochip_find_and_xlate); |