diff options
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_dsi.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c index 1ae3be99e0ff..179f2b080342 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -630,6 +630,15 @@ static void mtk_dsi_poweroff(struct mtk_dsi *dsi) if (--dsi->refcount != 0) return; + /* + * mtk_dsi_stop() and mtk_dsi_start() is asymmetric, since + * mtk_dsi_stop() should be called after mtk_drm_crtc_atomic_disable(), + * which needs irq for vblank, and mtk_dsi_stop() will disable irq. + * mtk_dsi_start() needs to be called in mtk_output_dsi_enable(), + * after dsi is fully set. + */ + mtk_dsi_stop(dsi); + if (!mtk_dsi_switch_to_cmd_mode(dsi, VM_DONE_INT_FLAG, 500)) { if (dsi->panel) { if (drm_panel_unprepare(dsi->panel)) { @@ -696,7 +705,6 @@ static void mtk_output_dsi_disable(struct mtk_dsi *dsi) } } - mtk_dsi_stop(dsi); mtk_dsi_poweroff(dsi); dsi->enabled = false; |