Re: [PATCH v2] drm: ci: use clk_ignore_unused for apq8016

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On 14/02/2024 05:37, Dmitry Baryshkov wrote:
If the ADV7511 bridge driver is compiled as a module, while DRM_MSM is
built-in, the clk_disable_unused congests with the runtime PM handling
of the DSI PHY for the clk_prepare_lock(). This causes apq8016 runner to
fail without completing any jobs ([1]). Drop the BM_CMDLINE which
duplicate the command line from the .baremetal-igt-arm64 clause and
enforce the clk_ignore_unused kernelarg instead to make apq8016 runner
work.

[1] https://gitlab.freedesktop.org/drm/msm/-/jobs/54990475

Fixes: 0119c894ab0d ("drm: Add initial ci/ subdirectory")
Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>

Acked-by: Helen Koike <helen.koike@xxxxxxxxxxxxx>

Thanks
Helen

---

Changes in v2:
- Added a comment, describing the issue and a way to reproduce it
   (Javier)

---
  drivers/gpu/drm/ci/test.yml | 5 ++++-
  1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/ci/test.yml b/drivers/gpu/drm/ci/test.yml
index 7ffb620d7398..e64205286a27 100644
--- a/drivers/gpu/drm/ci/test.yml
+++ b/drivers/gpu/drm/ci/test.yml
@@ -119,7 +119,10 @@ msm:apq8016:
      DRIVER_NAME: msm
      BM_DTB: https://${PIPELINE_ARTIFACTS_BASE}/arm64/apq8016-sbc-usb-host.dtb
      GPU_VERSION: apq8016
-    BM_CMDLINE: "ip=dhcp console=ttyMSM0,115200n8 $BM_KERNEL_EXTRA_ARGS root=/dev/nfs rw nfsrootdebug nfsroot=,tcp,nfsvers=4.2 init=/init $BM_KERNELARGS"
+    # disabling unused clocks congests with the MDSS runtime PM trying to
+    # disable those clocks and causes boot to fail.
+    # Reproducer: DRM_MSM=y, DRM_I2C_ADV7511=m
+    BM_KERNEL_EXTRA_ARGS: clk_ignore_unused
      RUNNER_TAG: google-freedreno-db410c
    script:
      - ./install/bare-metal/fastboot.sh




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