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authorTakashi Iwai <tiwai@suse.de>2012-08-20 21:26:04 +0200
committerTakashi Iwai <tiwai@suse.de>2012-08-20 21:26:04 +0200
commitf0b433e9f362e0b7f0ce7d1489dd7feba068605d (patch)
treed4bfd9489cf4a96a55d83af20919f477a846d585 /drivers/gpio/gpiolib-of.c
parentMerge branch 'topic/ca0132-fix' into for-linus (diff)
parentASoC: wm9712: Fix inverted capture volume (diff)
downloadlinux-f0b433e9f362e0b7f0ce7d1489dd7feba068605d.tar.xz
linux-f0b433e9f362e0b7f0ce7d1489dd7feba068605d.zip
Merge tag 'asoc-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Additional updates for 3.6 A batch more bugfixes, all driver-specific and fairly small and unremarkable in a global context. The biggest batch are for the newly added Arizona drivers.
Diffstat (limited to 'drivers/gpio/gpiolib-of.c')
-rw-r--r--drivers/gpio/gpiolib-of.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index d18068a9f3ec..a18c4aa68b1e 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);