The patch gpio: Enable nonexclusive gpiods from DT nodes
has been applied to the regulator tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From ec757001c818c175e6b610e8ef80c2a25d1ed1a5 Mon Sep 17 00:00:00 2001 From: Linus Walleij <[email protected]> Date: Thu, 6 Dec 2018 13:43:44 +0100 Subject: [PATCH] gpio: Enable nonexclusive gpiods from DT nodes 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. Suggested-by: Marek Szyprowski <[email protected]> Fixes: b0ce7b29bfcd ("regulator/gpio: Allow nonexclusive GPIO access") Signed-off-by: Linus Walleij <[email protected]> Reviewed-by: Marek Szyprowski <[email protected]> Tested-by: Marek Szyprowski <[email protected]> Reviewed-by: Charles Keepax <[email protected]> Signed-off-by: Mark Brown <[email protected]> --- 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); -- 2.19.0.rc2
