linux-kernel - [PATCH 5.8 12/85] gpio: amd-fch: correct logic of GPIO_LINE

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Message-Id: <20201005142115.326894667@linuxfoundation.org>
Date:   Mon,  5 Oct 2020 17:26:08 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Ed Wildgoose <lists@...dgooses.com>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: [PATCH 5.8 12/85] gpio: amd-fch: correct logic of GPIO_LINE_DIRECTION

From: Ed Wildgoose <lists@...dgooses.com>

commit d25e8fdebdad84219b498873300b7f11dd915b88 upstream.

The original commit appears to have the logic reversed in
amd_fch_gpio_get_direction. Also confirmed by observing the value of
"direction" in the sys tree.

Signed-off-by: Ed Wildgoose <lists@...dgooses.com>
Fixes: e09d168f13f0 ("gpio: AMD G-Series PCH gpio driver")
Cc: stable@...r.kernel.org
Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpio/gpio-amd-fch.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpio/gpio-amd-fch.c
+++ b/drivers/gpio/gpio-amd-fch.c
@@ -92,7 +92,7 @@ static int amd_fch_gpio_get_direction(st
 	ret = (readl_relaxed(ptr) & AMD_FCH_GPIO_FLAG_DIRECTION);
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	return ret ? GPIO_LINE_DIRECTION_IN : GPIO_LINE_DIRECTION_OUT;
+	return ret ? GPIO_LINE_DIRECTION_OUT : GPIO_LINE_DIRECTION_IN;
 }
 
 static void amd_fch_gpio_set(struct gpio_chip *gc,