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If the connected output is disabled before this test is run, then the test
will fail because actual_brightness stays at 0 instead of the value
of the desired brightness. Fix this by reading intel_backlight/device
for the output name, and enable that output at start of this test.
Changes since v1:
- Enable the connected output, instead of enabling all outputs.
Changes since v2:
- Set a dummy fb, just in case.
Changes since v3:
- Use igt_output_get_plane_type, not get_plane.
Sample failure:
IGT-Version: 1.20-g01c550a27986 (x86_64) (Linux: 4.14.0-rc3-fbconhax+ x86_64)
(pm_backlight:1203) CRITICAL: Test assertion failure function test_and_verify, file pm_backlight.c:111:
(pm_backlight:1203) CRITICAL: Failed assertion: ({ typeof(0) _a = (0); typeof(val - tolerance) _b = (val - tolerance); _a > _b ? _a : _b; }) <= result
(pm_backlight:1203) CRITICAL: error: 91200 > 0
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
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Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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We'll be adding more context for the subtests than just the max
brightness.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Gives out better diagnostics than just igt_asssert.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Signed-off-by: Daniel Stone <daniels@collabora.com>
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Add a header that includes all the headers for the library. This allows
reorganisation of the library without affecting programs using it and
also simplifies the headers that need to be included to use the library.
Signed-off-by: Thomas Wood <thomas.wood@intel.com>
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We should be able to adjust the backlight and observe changes in sysfs.
Reviewed-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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This is a basic sanity test of the backlight sysfs interface.
v2:
- Add jani's suggestion for immediate readback
- Remove unused parameter from test_and_verify()
- Add fade test
Issue: VIZ-3377
Signed-off-by: Antti Koskipaa <antti.koskipaa@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Thomas Wood <thomas.wood@intel.com>
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