openwrt/target/linux/bcm27xx/patches-4.19/950-0699-gpio-Enable-nonexclusive-gpiods-from-DT-nodes.patch
Adrian Schmutzler 7d7aa2fd92 brcm2708: rename target to bcm27xx
This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
2020-02-14 14:10:51 +01:00

35 lines
1.2 KiB
Diff

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
@@ -4062,6 +4062,8 @@ 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);