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2458d9d6d9
mtk_dsi_stop() should be called after mtk_drm_crtc_atomic_disable(), which
needs ovl irq for drm_crtc_wait_one_vblank(), since after mtk_dsi_stop() is
called, ovl irq will be disabled. If drm_crtc_wait_one_vblank() is called
after last irq, it will timeout with this message: "vblank wait timed out
on crtc 0". This happens sometimes when turning off the screen.
In drm_atomic_helper.c#disable_outputs(),
the calling sequence when turning off the screen is:
1. mtk_dsi_encoder_disable()
--> mtk_output_dsi_disable()
--> mtk_dsi_stop(); /* sometimes make vblank timeout in
atomic_disable */
--> mtk_dsi_poweroff();
2. mtk_drm_crtc_atomic_disable()
--> drm_crtc_wait_one_vblank();
...
--> mtk_dsi_ddp_stop()
--> mtk_dsi_poweroff();
mtk_dsi_poweroff() has reference count design, change to make
mtk_dsi_stop() called in mtk_dsi_poweroff() when refcount is 0.
Fixes:
|
||
|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| mtk_cec.c | ||
| mtk_cec.h | ||
| mtk_disp_color.c | ||
| mtk_disp_ovl.c | ||
| mtk_disp_rdma.c | ||
| mtk_dpi_regs.h | ||
| mtk_dpi.c | ||
| mtk_drm_crtc.c | ||
| mtk_drm_crtc.h | ||
| mtk_drm_ddp_comp.c | ||
| mtk_drm_ddp_comp.h | ||
| mtk_drm_ddp.c | ||
| mtk_drm_ddp.h | ||
| mtk_drm_drv.c | ||
| mtk_drm_drv.h | ||
| mtk_drm_fb.c | ||
| mtk_drm_fb.h | ||
| mtk_drm_gem.c | ||
| mtk_drm_gem.h | ||
| mtk_drm_plane.c | ||
| mtk_drm_plane.h | ||
| mtk_dsi.c | ||
| mtk_hdmi_ddc.c | ||
| mtk_hdmi_phy.c | ||
| mtk_hdmi_phy.h | ||
| mtk_hdmi_regs.h | ||
| mtk_hdmi.c | ||
| mtk_hdmi.h | ||
| mtk_mipi_tx.c | ||
| mtk_mt2701_hdmi_phy.c | ||
| mtk_mt8173_hdmi_phy.c | ||