This makes gpiod_get_from_of_node() respect the
GPIOD_FLAGS_BIT_NONEXCLUSIVE flag which is especially
nice when getting regulator GPIOs right out of device
tree nodes.
Cc: Mark Brown <broo...@kernel.org>
Cc: Bartosz Golaszewski <bgolaszew...@baylibre.com>
Cc: Marek Szyprowski <m.szyprow...@samsung.com>
Suggested-by: Marek Szyprowski <m.szyprow...@samsung.com>
Fixes: b0ce7b29bfcd ("regulator/gpio: Allow nonexclusive GPIO access")
Signed-off-by: Linus Walleij <linus.wall...@linaro.org>
---
ChangeLog v1->v3:
- New patch after Marek's review.
---
drivers/gpio/gpiolib.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 230e41562462..a7e3fd512e2d 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -4204,6 +4204,8 @@ struct gpio_desc *gpiod_get_from_of_node(struct
device_node *node,
transitory = flags & OF_GPIO_TRANSITORY;
ret = gpiod_request(desc, label);
+ if (ret == -EBUSY && (flags & GPIOD_FLAGS_BIT_NONEXCLUSIVE))
+ return desc;
if (ret)
return ERR_PTR(ret);
--
2.19.2
