https://github.com/torvalds/linux
Revision 90144dd8b0d137d9e78ef34b3c418e51a49299ad authored by Nícolas F. R. A. Prado on 04 August 2022, 19:43:25 UTC, committed by Chun-Kuang Hu on 21 September 2022, 23:31:43 UTC
As the comment right before the mtk_dsi_stop() call advises, mtk_dsi_stop() should only be called after mtk_drm_crtc_atomic_disable(). That's because that function calls drm_crtc_wait_one_vblank(), which requires the vblank irq to be enabled. Previously mtk_dsi_stop(), being in mtk_dsi_poweroff() and guarded by a refcount, would only be called at the end of mtk_drm_crtc_atomic_disable(), through the call to mtk_crtc_ddp_hw_fini(). Commit cde7e2e35c28 ("drm/mediatek: Separate poweron/poweroff from enable/disable and define new funcs") moved the mtk_dsi_stop() call to mtk_output_dsi_disable(), causing it to be called before mtk_drm_crtc_atomic_disable(), and consequently generating vblank timeout warnings during suspend. Move the mtk_dsi_stop() call back to mtk_dsi_poweroff() so that we have a working vblank irq during mtk_drm_crtc_atomic_disable() and stop getting vblank timeout warnings. Fixes: cde7e2e35c28 ("drm/mediatek: Separate poweron/poweroff from enable/disable and define new funcs") Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Tested-by: Hsin-Yi Wang <hsinyi@chromium.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Tested-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com> Link: http://lists.infradead.org/pipermail/linux-mediatek/2022-August/046713.html Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
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Tip revision: 90144dd8b0d137d9e78ef34b3c418e51a49299ad authored by Nícolas F. R. A. Prado on 04 August 2022, 19:43:25 UTC
drm/mediatek: dsi: Move mtk_dsi_stop() call back to mtk_dsi_poweroff()
drm/mediatek: dsi: Move mtk_dsi_stop() call back to mtk_dsi_poweroff()
Tip revision: 90144dd
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