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| author | Hans de Goede <hdegoede@redhat.com> | 2023-09-20 21:56:12 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2023-10-12 12:41:48 +0200 |
| commit | f6f4a0862bde6c2a15654da624dc8509bf66d87e (patch) | |
| tree | a83078bc4cf03cc1b2edbb889ccfdf65a5b66081 /drivers/accessibility | |
| parent | 2cac4ed99f9e798df8a4c34a8399adf3c587ccba (diff) | |
| download | lwn-f6f4a0862bde6c2a15654da624dc8509bf66d87e.tar.gz lwn-f6f4a0862bde6c2a15654da624dc8509bf66d87e.zip | |
drm/i915/vlv_dsi: Add DMI quirk for backlight control issues on Lenovo Yoga Tab 3 (v2)
On the Lenovo Yoga Tab 3 Pro YT3-X90F there are 2 issues with the backlight
on/off MIPI sequences:
1. The backlight on sequence has an I2C MIPI sequence element which uses
bus 0, but there is a bogus I2cSerialBus resource under the GPU in
the DSDT which causes i2c_acpi_find_adapter() to pick the wrong bus.
2. There is no backlight off sequence, causing the backlight to stay on.
Add a DMI quirk fixing both issues.
v2:
- Add Closes tag to gitlab issue with drm.debug=0xe, VBT info
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/9380
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230920195613.304091-4-hdegoede@redhat.com
Diffstat (limited to 'drivers/accessibility')
0 files changed, 0 insertions, 0 deletions