[PATCH v1 2/3] drm/ci: Add jobs to validate devicetrees

[Vignesh Raman <vignesh.raman@collabora.com>]

Add jobs to run dt_binding_check and dtbs_check. If warnings are seen,
exit with a non-zero error code while configuring them as warning in
the GitLab CI pipeline.

Signed-off-by: Vignesh Raman <vignesh.raman@collabora.com>
---
 drivers/gpu/drm/ci/check-devicetrees.yml | 38 ++++++++++++++++++++++
 drivers/gpu/drm/ci/dt-binding-check.sh   | 18 +++++++++++
 drivers/gpu/drm/ci/dtbs-check.sh         | 41 ++++++++++++++++++++++++
 drivers/gpu/drm/ci/gitlab-ci.yml         |  1 +
 4 files changed, 98 insertions(+)
 create mode 100644 drivers/gpu/drm/ci/check-devicetrees.yml
 create mode 100755 drivers/gpu/drm/ci/dt-binding-check.sh
 create mode 100755 drivers/gpu/drm/ci/dtbs-check.sh

diff --git a/drivers/gpu/drm/ci/check-devicetrees.yml b/drivers/gpu/drm/ci/check-devicetrees.yml
new file mode 100644
index 000000000000..5f0c477f7578
--- /dev/null
+++ b/drivers/gpu/drm/ci/check-devicetrees.yml
@@ -0,0 +1,38 @@
+.dt-check-base:
+  timeout: "1h"
+  variables:
+    FF_USE_NEW_BASH_EVAL_STRATEGY: 'true'
+  script:
+    - drivers/gpu/drm/ci/${SCRIPT_NAME}
+  artifacts:
+    when: on_failure
+    paths:
+      - ${ARTIFACT_FILE}
+  allow_failure:
+    exit_codes:
+      - 102
+
+dtbs-check:arm32:
+  extends:
+    - .build:arm32
+    - .dt-check-base
+  variables:
+    SCRIPT_NAME: "dtbs-check.sh"
+    ARTIFACT_FILE: "dtbs-check.log"
+
+dtbs-check:arm64:
+  extends:
+    - .build:arm64
+    - .dt-check-base
+  variables:
+    SCRIPT_NAME: "dtbs-check.sh"
+    ARTIFACT_FILE: "dtbs-check.log"
+
+dt-binding-check:
+  extends:
+    - .build
+    - .use-debian/x86_64_build
+    - .dt-check-base
+  variables:
+    SCRIPT_NAME: "dt-binding-check.sh"
+    ARTIFACT_FILE: "dt-binding-check.log"
diff --git a/drivers/gpu/drm/ci/dt-binding-check.sh b/drivers/gpu/drm/ci/dt-binding-check.sh
new file mode 100755
index 000000000000..2a72bb89c013
--- /dev/null
+++ b/drivers/gpu/drm/ci/dt-binding-check.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+# SPDX-License-Identifier: MIT
+
+set -euxo pipefail
+
+apt-get update -qq
+apt install -y --no-install-recommends yamllint
+pip3 install dtschema
+
+if ! make -j${FDO_CI_CONCURRENT:-4} dt_binding_check >/dev/null 2>dt-binding-check.log; then
+    echo "ERROR: 'make dt_binding_check' failed. Please check dt-binding-check.log for details."
+    exit 1
+fi
+
+if [[ -s dt-binding-check.log ]]; then
+    echo "WARNING: dt_binding_check reported warnings. Please check dt-binding-check.log for details."
+    exit 102
+fi
diff --git a/drivers/gpu/drm/ci/dtbs-check.sh b/drivers/gpu/drm/ci/dtbs-check.sh
new file mode 100755
index 000000000000..a0129d5a53b0
--- /dev/null
+++ b/drivers/gpu/drm/ci/dtbs-check.sh
@@ -0,0 +1,41 @@
+#!/bin/bash
+# SPDX-License-Identifier: MIT
+
+set -euxo pipefail
+
+. drivers/gpu/drm/ci/override-ld-with-bfd.sh
+
+apt-get update -qq
+pip3 install dtschema
+
+case "${KERNEL_ARCH}" in
+    "arm")
+        GCC_ARCH="arm-linux-gnueabihf"
+        ;;
+    "arm64")
+        GCC_ARCH="aarch64-linux-gnu"
+        ;;
+    "x86_64")
+        GCC_ARCH="x86_64-linux-gnu"
+        ;;
+    *)
+        echo "Unsupported architecture: ${KERNEL_ARCH}"
+        exit 1
+        ;;
+esac
+
+export ARCH="${KERNEL_ARCH}"
+export CROSS_COMPILE="${GCC_ARCH}-"
+
+make `basename ${DEFCONFIG}`
+make -j${FDO_CI_CONCURRENT:-4} dtbs
+
+if ! make -j${FDO_CI_CONCURRENT:-4} dtbs_check >/dev/null 2>dtbs-check.log; then
+    echo "ERROR: 'make dtbs_check' failed. Please check dtbs-check.log for details."
+    exit 1
+fi
+
+if [[ -s dtbs-check.log ]]; then
+    echo "WARNING: dtbs_check reported warnings. Please check dtbs-check.log for details."
+    exit 102
+fi
diff --git a/drivers/gpu/drm/ci/gitlab-ci.yml b/drivers/gpu/drm/ci/gitlab-ci.yml
index 65adcd97e06b..9e61b49e9960 100644
--- a/drivers/gpu/drm/ci/gitlab-ci.yml
+++ b/drivers/gpu/drm/ci/gitlab-ci.yml
@@ -108,6 +108,7 @@ include:
   - drivers/gpu/drm/ci/static-checks.yml
   - drivers/gpu/drm/ci/build.yml
   - drivers/gpu/drm/ci/test.yml
+  - drivers/gpu/drm/ci/check-devicetrees.yml
   - 'https://gitlab.freedesktop.org/gfx-ci/lab-status/-/raw/main/lab-status.yml'
 
 
-- 
2.47.2