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At shutdown if you've got a _properly_ coded DRM modeset driver then you'll get these two warnings at shutdown time: Skipping disable of already disabled panel Skipping unprepare of already unprepared panel These warnings are ugly and sound concerning, but they're actually a sign of a properly working system. That's not great. We're not ready to get rid of the calls to drm_panel_disable() and drm_panel_unprepare() because we're not 100% convinced that all DRM modeset drivers are properly calling drm_atomic_helper_shutdown() or drm_helper_force_disable_all() at the right times. However, having the warning show up for correctly working systems is bad. As a bit of a workaround, add some "if" tests to try to avoid the warning on correctly working systems. Also add some comments and update the TODO items in the hopes that future developers won't be too confused by what's going on here. Suggested-by: Daniel Vetter <daniel@ffwll.ch> Acked-by: Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240621134427.1.Ieb287c2c3ee3f6d3b0d5f49b29f746b93621749c@changeid |
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| .. | ||
| amdgpu | ||
| bridge | ||
| dp-mst | ||
| imagination | ||
| rfc | ||
| xe | ||
| afbc.rst | ||
| automated_testing.rst | ||
| backlight.rst | ||
| driver-uapi.rst | ||
| drivers.rst | ||
| drm-client.rst | ||
| drm-internals.rst | ||
| drm-kms-helpers.rst | ||
| drm-kms.rst | ||
| drm-mm.rst | ||
| drm-uapi.rst | ||
| drm-usage-stats.rst | ||
| drm-vm-bind-async.rst | ||
| drm-vm-bind-locking.rst | ||
| i915.rst | ||
| implementation_guidelines.rst | ||
| index.rst | ||
| introduction.rst | ||
| kms-properties.csv | ||
| komeda-kms.rst | ||
| mcde.rst | ||
| meson.rst | ||
| msm-crash-dump.rst | ||
| panfrost.rst | ||
| pl111.rst | ||
| tegra.rst | ||
| todo.rst | ||
| tve200.rst | ||
| v3d.rst | ||
| vc4.rst | ||
| vga-switcheroo.rst | ||
| vgaarbiter.rst | ||
| vkms.rst | ||
| xen-front.rst | ||