1 files changed, 0 insertions, 45 deletions
diff --git a/target/linux/generic/backport-5.4/802-v5.5-gpiolib-fix-up-emulated-open-drain-outputs.patch b/target/linux/generic/backport-5.4/802-v5.5-gpiolib-fix-up-emulated-open-drain-outputs.patch
deleted file mode 100644
index 311d4ed448..0000000000
--- a/target/linux/generic/backport-5.4/802-v5.5-gpiolib-fix-up-emulated-open-drain-outputs.patch
+++ /dev/null
@@ -1,45 +0,0 @@
-From: Russell King <rmk+kernel@armlinux.org.uk>
-Bcc: linux@mail.armlinux.org.uk
-Cc: Linus Walleij <linus.walleij@linaro.org>,Bartosz Golaszewski <bgolaszewski@baylibre.com>,linux-gpio@vger.kernel.org
-Subject: [PATCH] gpiolib: fix up emulated open drain outputs
-MIME-Version: 1.0
-Content-Disposition: inline
-Content-Transfer-Encoding: 8bit
-Content-Type: text/plain; charset="utf-8"
-
-gpiolib has a corner case with open drain outputs that are emulated.
-When such outputs are outputting a logic 1, emulation will set the
-hardware to input mode, which will cause gpiod_get_direction() to
-report that it is in input mode. This is different from the behaviour
-with a true open-drain output.
-
-Unify the semantics here.
-
-Suggested-by: Linus Walleij <linus.walleij@linaro.org>
-Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
----
- drivers/gpio/gpiolib.c | 8 ++++++++
- 1 file changed, 8 insertions(+)
-
-diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
-index 104ed299d5ea..99d19f80440e 100644
---- a/drivers/gpio/gpiolib.c
-+++ b/drivers/gpio/gpiolib.c
-@@ -220,6 +220,14 @@ int gpiod_get_direction(struct gpio_desc *desc)
- 	chip = gpiod_to_chip(desc);
- 	offset = gpio_chip_hwgpio(desc);
- 
-+	/*
-+	 * Open drain emulation using input mode may incorrectly report
-+	 * input here, fix that up.
-+	 */
-+	if (test_bit(FLAG_OPEN_DRAIN, &desc->flags) &&
-+	    test_bit(FLAG_IS_OUT, &desc->flags))
-+		return 0;
-+
- 	if (!chip->get_direction)
- 		return -ENOTSUPP;
- 
--- 
-2.20.1
-