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| author | Mario Limonciello <mario.limonciello@amd.com> | 2025-05-29 17:46:32 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-07-06 12:04:26 +0300 |
| commit | 889906e6eb5fab990c9b6b5fe8f1122b2416fc22 (patch) | |
| tree | 00f710f0437772f9b30b05902b71eea479d0ba1b /scripts/gdb/linux/xarray.py | |
| parent | d5df87e3fccecde67866f587e187e67b503a0be9 (diff) | |
| download | linux-889906e6eb5fab990c9b6b5fe8f1122b2416fc22.tar.xz | |
drm/amd/display: Export full brightness range to userspace
commit 16dc8bc27c2aa3c93905d3e885e27f1e3535f09a upstream.
[WHY]
Userspace currently is offered a range from 0-0xFF but the PWM is
programmed from 0-0xFFFF. This can be limiting to some software
that wants to apply greater granularity.
[HOW]
Convert internally to firmware values only when mapping custom
brightness curves because these are in 0-0xFF range. Advertise full
PWM range to userspace.
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Roman Li <roman.li@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 8dbd72cb790058ce52279af38a43c2b302fdd3e5)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/gdb/linux/xarray.py')
0 files changed, 0 insertions, 0 deletions