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| author | Mario Limonciello <mario.limonciello@amd.com> | 2021-11-02 18:04:37 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-18 21:17:20 +0300 |
| commit | bb7e50b476abb8fc94a9891bb7f08ab21801fec5 (patch) | |
| tree | 6b381540ab05ea1cbf2b4a005af863157ec797ce /lib/string_helpers.c | |
| parent | 3e1e7e4a6b54b9ed9a633a9faeb8f0dafd6dd7fb (diff) | |
| download | linux-bb7e50b476abb8fc94a9891bb7f08ab21801fec5.tar.xz | |
drm/amd/display: Look at firmware version to determine using dmub on dcn21
commit 91adec9e07097e538691daed5d934e7886dd1dc3 upstream.
commit 652de07addd2 ("drm/amd/display: Fully switch to dmub for all dcn21
asics") switched over to using dmub on Renoir to fix Gitlab 1735, but this
implied a new dependency on newer firmware which might not be met on older
kernel versions.
Since sw_init runs before hw_init, there is an opportunity to determine
whether or not the firmware version is new to adjust the behavior.
Cc: Roman.Li@amd.com
BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1772
BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1735
Fixes: 652de07addd2 ("drm/amd/display: Fully switch to dmub for all dcn21 asics")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions