libgpiod: fix ptests failure

Linux kernel commit 8bd76b3d3f3a ("gpio: sim: lock up configfs that an
instantiated device depends on") revealed an issue in libgpiod bindings
tests where a GPIO simulator device is not disabled before removing its
configfs entries.

Add a patch (already submitted upstream) that fixes the observed ptest
failures.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/meta-oe/recipes-support/libgpiod/libgpiod-2.x/0001-bindings-cxx-tests-disable-GPIO-simulator-before-rel.patch b/meta-oe/recipes-support/libgpiod/libgpiod-2.x/0001-bindings-cxx-tests-disable-GPIO-simulator-before-rel.patch
new file mode 100644
index 0000000000..9747613aa6
--- /dev/null
+++ b/meta-oe/recipes-support/libgpiod/libgpiod-2.x/0001-bindings-cxx-tests-disable-GPIO-simulator-before-rel.patch
@@ -0,0 +1,34 @@
+From 7df2bb4f51281166633d4acbcff5763150add3fa Mon Sep 17 00:00:00 2001
+From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
+Date: Mon, 3 Feb 2025 13:20:41 +0100
+Subject: [PATCH] bindings: cxx: tests: disable GPIO simulator before releasing it
+
+Linux kernel commit 8bd76b3d3f3a ("gpio: sim: lock up configfs that an
+instantiated device depends on") uncovered an issue in C++ bindings
+tests where the GPIO simulator device is not disabled before removing its
+configfs entries. Add a call to gpiosim_dev_disable() to the
+gpiosim::chip's destructor.
+
+Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
+
+Upstream-Status: Submitted [https://lore.kernel.org/all/20250203-fix-gpiosim-in-bindings-v1-1-d2c9e0f3a29d@linaro.org/]
+---
+ bindings/cxx/tests/gpiosim.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/bindings/cxx/tests/gpiosim.cpp b/bindings/cxx/tests/gpiosim.cpp
+index 4bda5a2..cdecd8d 100644
+--- a/bindings/cxx/tests/gpiosim.cpp
++++ b/bindings/cxx/tests/gpiosim.cpp
+@@ -115,7 +115,7 @@ chip::chip(chip&& other)
+ 
+ chip::~chip()
+ {
+-
++       ::gpiosim_dev_disable(this->_m_priv->dev.get());
+ }
+ 
+ chip& chip::operator=(chip&& other)
+-- 
+2.45.2
+