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This happens if > > > > > > the IMX CSI hardware has to be reconfigured for the second stream, while > > > > > > the first stream is already running. > > > > > > > > > > > > The IMX CSI driver configures the IMX CSI in the link_validate callback. > > > > > > The media pipeline is only validated on the first start. Thus, any later > > > > > > start of the media pipeline skips the validation and directly starts > > > > > > streaming. This may leave the hardware in an inconsistent state compared > > > > > > to the driver configuration. Moving the hardware configuration to the > > > > > > stream start to make sure that the hardware is configured correctly. > > > > > > > > > > > > Patch 1 removes the caching of the upstream mbus_config in > > > > > > csi_link_validate and explicitly request the mbus_config in csi_start, > > > > > > to get rid of this implicit dependency. > > > > > > > > > > > > Patch 2 actually moves the hardware register setting from > > > > > > csi_link_validate to csi_start to fix the skipped hardware > > > > > > reconfiguration. > > > > > > > > > > Gentle ping. > > > > > > > > Is there anything still missing to get these patches applied? > > > > I'm not entirely sure, who is responsible for applying patches for > > media-imx. You handled the last few patches for this driver. Maybe you > > could apply these patches, too? > > > > I also sent another series [0] for media-imx. Can you handle this other > > series, as well? > > I don't have bandwidth to handle the i.MX6 camera code in staging, at > least for the parts that are not on their way out of staging (I really > want to help with imx6-mipi-csi2, but even there time is short). I'm > fine if Hans handles this series. > Hans Verkuil: Since Laurent Pinchart have not bandwidth, do you need me to help collect these patch and send pull request? I have collected imx's dts part patch now. Best regards Frank Li > > -- > Regards, > > Laurent Pinchart