diff options
| author | Liu Ying <victor.liu@nxp.com> | 2019-11-11 14:23:58 +0800 |
|---|---|---|
| committer | Dong Aisheng <aisheng.dong@nxp.com> | 2019-11-25 15:58:12 +0800 |
| commit | 95dea9fe254d55da8ff75ab2edadfd93adc4f0c3 (patch) | |
| tree | 6139a00f35df4340c477d09c94cf5610259d19f2 | |
| parent | afe3279dbb630f1feb4cb1d7dbc33c7fb6080185 (diff) | |
drm/imx: dpu: crtc: Wait for FrameGen secondary syncup in ->atomic_enable()
Although the hardware spec doesn't mention the additional operation to
wait for FrameGen secondary syncup for FrameGen non-sync mode when we
enable a display, it doesn't hurt to do it and we may get warning message
in case it's not syncup.
Signed-off-by: Liu Ying <victor.liu@nxp.com>
| -rw-r--r-- | drivers/gpu/drm/imx/dpu/dpu-crtc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/imx/dpu/dpu-crtc.c b/drivers/gpu/drm/imx/dpu/dpu-crtc.c index b004e327caef..8d8878ff44ac 100644 --- a/drivers/gpu/drm/imx/dpu/dpu-crtc.c +++ b/drivers/gpu/drm/imx/dpu/dpu-crtc.c @@ -127,6 +127,8 @@ static void dpu_crtc_atomic_enable(struct drm_crtc *crtc, dpu_crtc_queue_state_event(crtc); + framegen_wait_for_secondary_syncup(dpu_crtc->fg); + if (framegen_secondary_requests_to_read_empty_fifo(dpu_crtc->fg)) { framegen_secondary_clear_channel_status(dpu_crtc->fg); DRM_WARN("[CRTC:%d:%s] %s: FrameGen requests to read empty FIFO\n", |