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647474b8d9
DRM bridge drivers are now attaching their DSI device at probe time, which requires us to register our DSI host in order to let the bridge to probe: this recently started producing an endless -EPROBE_DEFER loop on some machines that are using external bridges, like the parade-ps8640, found on the ACER Chromebook R13. Now that the DSI hosts/devices probe sequence is documented, we can do adjustments to the mtk_dsi driver as to both fix now and make sure to avoid this situation in the future: for this, following what is documented in drm_bridge.c, move the mtk_dsi component_add() to the mtk_dsi_ops.attach callback and delete it in the detach callback; keeping in mind that we are registering a drm_bridge for our DSI, which is only used/attached if the DSI Host is bound, it wouldn't make sense to keep adding our bridge at probe time (as it would be useless to have it if mtk_dsi_ops.attach() fails!), so also move that one to the dsi host attach function (and remove it in detach). Cc: <stable@vger.kernel.org> # 5.15.x Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Nícolas F. R. A. Prado <nfraprado@collabora.com> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| mtk_cec.c | ||
| mtk_cec.h | ||
| mtk_disp_aal.c | ||
| mtk_disp_ccorr.c | ||
| mtk_disp_color.c | ||
| mtk_disp_drv.h | ||
| mtk_disp_gamma.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_drv.c | ||
| mtk_drm_drv.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_regs.h | ||
| mtk_hdmi.c | ||
| mtk_hdmi.h | ||