diff options
| author | Mikita Lipski <mikita.lipski@amd.com> | 2018-08-02 09:45:09 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-08-13 17:29:11 -0500 |
| commit | ad8960a6cb06c446d0a391ce095f6f28edf36aff (patch) | |
| tree | 58ef33720bbbe145f1461464612a518154a76b65 /drivers/gpu/drm/amd/display/dc/dce110 | |
| parent | fc69009e35b74e45ad71140e94355e999b8d24af (diff) | |
| download | linux-ad8960a6cb06c446d0a391ce095f6f28edf36aff.tar.gz | |
drm/amd/display: Check if clock source in use before disabling
[why]
We are disabling clock source while other pipes are still using
it, because we don't verify the number of pipes that share it.
[how]
- Adding a function in resources to return the number of pipes
sharing the clock source.
- Checking that no one is sharing the clock source before disabling
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce110')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c index 1d98e3678b04..5450d4d38e8a 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c @@ -1908,7 +1908,9 @@ static void dce110_reset_hw_ctx_wrap( pipe_ctx_old->plane_res.mi->funcs->free_mem_input( pipe_ctx_old->plane_res.mi, dc->current_state->stream_count); - if (old_clk) + if (old_clk && 0 == resource_get_clock_source_reference(&context->res_ctx, + dc->res_pool, + old_clk)) old_clk->funcs->cs_power_down(old_clk); dc->hwss.disable_plane(dc, pipe_ctx_old); |