openwrtv4/target/linux/brcm2708/patches-4.1/0057-pinctrl-bcm2835-bcm2835_gpio_direction_output-must-s.patch
Felix Fietkau 0b5d87fd30 brcm2708: update 4.1 patches
As usual, this patches were taken (and rebased) from
https://github.com/raspberrypi/linux/commits/rpi-4.1.y

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

SVN-Revision: 46853
2015-09-11 16:32:00 +00:00

28 lines
972 B
Diff

From 9c59564e8d49582902e182a63eb7874da8bd37ac Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Wed, 4 Feb 2015 10:02:24 +0000
Subject: [PATCH 057/171] pinctrl-bcm2835: bcm2835_gpio_direction_output must
set the value
---
drivers/pinctrl/bcm/pinctrl-bcm2835.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
@@ -355,7 +355,14 @@ static int bcm2835_gpio_get(struct gpio_
static int bcm2835_gpio_direction_output(struct gpio_chip *chip,
unsigned offset, int value)
{
- return pinctrl_gpio_direction_output(chip->base + offset);
+ struct bcm2835_pinctrl *pc = dev_get_drvdata(chip->dev);
+ int ret;
+
+ ret = pinctrl_gpio_direction_output(chip->base + offset);
+ if (ret >= 0)
+ bcm2835_gpio_set_bit(pc, value ? GPSET0 : GPCLR0, offset);
+
+ return ret;
}
static void bcm2835_gpio_set(struct gpio_chip *chip, unsigned offset, int value)