linux-kernel - [PATCH AUTOSEL 4.19 34/68] gpio: mockup: fix indicated direction

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Message-Id: <20181129055559.159228-34-sashal@kernel.org>
Date:   Thu, 29 Nov 2018 00:55:25 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     stable@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Bartosz Golaszewski <brgl@...ev.pl>,
        Linus Walleij <linus.walleij@...aro.org>,
        Sasha Levin <sashal@...nel.org>, linux-gpio@...r.kernel.org
Subject: [PATCH AUTOSEL 4.19 34/68] gpio: mockup: fix indicated direction

From: Bartosz Golaszewski <brgl@...ev.pl>

[ Upstream commit bff466bac59994cfcceabe4d0be5fdc1c20cd5b8 ]

Commit 3edfb7bd76bd ("gpiolib: Show correct direction from the
beginning") fixed an existing issue but broke libgpiod tests by
changing the default direction of dummy lines to output.

We don't break user-space so make gpio-mockup behave as before.

Signed-off-by: Bartosz Golaszewski <brgl@...ev.pl>
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpio/gpio-mockup.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-mockup.c b/drivers/gpio/gpio-mockup.c
index d66b7a768ecd..945bd13e5e79 100644
--- a/drivers/gpio/gpio-mockup.c
+++ b/drivers/gpio/gpio-mockup.c
@@ -32,8 +32,8 @@
 #define gpio_mockup_err(...)	pr_err(GPIO_MOCKUP_NAME ": " __VA_ARGS__)
 
 enum {
-	GPIO_MOCKUP_DIR_OUT = 0,
-	GPIO_MOCKUP_DIR_IN = 1,
+	GPIO_MOCKUP_DIR_IN = 0,
+	GPIO_MOCKUP_DIR_OUT = 1,
 };
 
 /*
@@ -135,7 +135,7 @@ static int gpio_mockup_get_direction(struct gpio_chip *gc, unsigned int offset)
 {
 	struct gpio_mockup_chip *chip = gpiochip_get_data(gc);
 
-	return chip->lines[offset].dir;
+	return !chip->lines[offset].dir;
 }
 
 static int gpio_mockup_to_irq(struct gpio_chip *gc, unsigned int offset)
-- 
2.17.1