For mst rb8 irq mailine#1323
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This reverts commit 9115cc6. Revert due to regression issue Signed-off-by: Yongxing Mou <yongxing.mou@oss.qualcomm.com>
This reverts commit 44240af. revert due to regression issue Signed-off-by: Yongxing Mou <yongxing.mou@oss.qualcomm.com>
…operations" This reverts commit b4c8ea9. revert due to regression issue Signed-off-by: Yongxing Mou <yongxing.mou@oss.qualcomm.com>
Add a new file dp_mst_drm to manage the DP MST bridge operations similar to the dp_drm file which manages the SST bridge operations. Each MST encoder creates one bridge and each bridge is bound to its own dp_panel abstraction to manage the operations of its pipeline. Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com> Signed-off-by: Yongxing Mou <yongxing.mou@oss.qualcomm.com> Link: https://lore.kernel.org/all/20250609-msm-dp-mst-v2-28-a54d8902a23d@quicinc.com/
Add connector abstraction for the DP MST. Each MST encoder is connected through a DRM bridge to a MST connector and each MST connector has a DP panel abstraction attached to it. Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com> Signed-off-by: Yongxing Mou <yongxing.mou@oss.qualcomm.com> Link: https://lore.kernel.org/all/20250609-msm-dp-mst-v2-29-a54d8902a23d@quicinc.com/
Add HPD callback for the MST module which shall be invoked from the dp_display's HPD handler to perform MST specific operations in case of HPD. In MST case, route the HPD messages to MST module. Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com> Signed-off-by: Yongxing Mou <yongxing.mou@oss.qualcomm.com> Link: https://lore.kernel.org/all/20260410-msm-dp-mst-v4-37-b20518dea8de@oss.qualcomm.com/
…d handling On RB8 hardware, after drm_dp_add_payload_part2() completes, the downstream MST dongle has a high probability of silently dropping the short-pulse IRQ at specific timing windows. Implement the .poll_hpd_irq topology callback so that the DRM MST core can proactively poll for unhandled sideband events whenever it suspects a missed IRQ. Note: The new MST series will integrate this change into the introduce MST IRQ patch Signed-off-by: Yongxing Mou <yongxing.mou@oss.qualcomm.com> Link: https://lore.kernel.org/all/20260606-mst_irq-v1-1-98bd86445c03@oss.qualcomm.com/
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fix MST payload shift issue
fix MST payload change after page flip
fix MST irq missing issue
CRs-Fixed:4545048