brcm2708: organize kernel patches

[openwrt/openwrt.git] / target / linux / brcm2708 / patches-4.19 / 950-0729-gpio-Enable-nonexclusive-gpiods-from-DT-nodes.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0729-gpio-Enable-nonexclusive-gpiods-from-DT-nodes.patch b/target/linux/brcm2708/patches-4.19/950-0729-gpio-Enable-nonexclusive-gpiods-from-DT-nodes.patch
new file mode 100644 (file)
index 0000000..e8e63a2
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0729-gpio-Enable-nonexclusive-gpiods-from-DT-nodes.patch
@@ -0,0 +1,34 @@
+From 76870d237adff4c8e419064e7d4f5a8ef87c1085 Mon Sep 17 00:00:00 2001
+From: Linus Walleij <linus.walleij@linaro.org>
+Date: Thu, 6 Dec 2018 13:43:44 +0100
+Subject: [PATCH] gpio: Enable nonexclusive gpiods from DT nodes
+
+commit ec757001c818c175e6b610e8ef80c2a25d1ed1a5 upstream.
+
+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 <m.szyprowski@samsung.com>
+Fixes: b0ce7b29bfcd ("regulator/gpio: Allow nonexclusive GPIO access")
+Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
+Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com>
+Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
+Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
+Signed-off-by: Mark Brown <broonie@kernel.org>
+---
+ drivers/gpio/gpiolib.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/gpio/gpiolib.c
++++ b/drivers/gpio/gpiolib.c
+@@ -4053,6 +4053,8 @@ struct gpio_desc *gpiod_get_from_of_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);
+