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path: root/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
-rw-r--r--drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 932d56ae0af2..ed4f3bb50357 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -593,8 +593,20 @@ static void dm_crtc_high_irq(void *interrupt_params)
list_entry);
spin_unlock_irqrestore(&acrtc->wb_conn->job_lock, flags);
- if (job)
+ if (job) {
+ unsigned int v_total, refresh_hz;
+ struct dc_stream_state *stream = acrtc->dm_irq_params.stream;
+
+ v_total = stream->adjust.v_total_max ?
+ stream->adjust.v_total_max : stream->timing.v_total;
+ refresh_hz = div_u64((uint64_t) stream->timing.pix_clk_100hz *
+ 100LL, (v_total * stream->timing.h_total));
+ mdelay(1000 / refresh_hz);
+
drm_writeback_signal_completion(acrtc->wb_conn, 0);
+ dc_stream_fc_disable_writeback(adev->dm.dc,
+ acrtc->dm_irq_params.stream, 0);
+ }
} else
DRM_ERROR("%s: no amdgpu_crtc wb_conn\n", __func__);
acrtc->wb_pending = false;