title: "BSP 5.1.x upport: vsp: Improve debugging"
team: MM
key: 56a3f5f7-7d5b-4e31-8d96-e8793f87e5bc
status: New

bsp41x:
 - 3024d2ee349f6a0ee59ad271253e4a0128a0fffe # v4l: vsp1: Add underrun debug messege option

bsp51x:
 - 25c2a9f1bbcb82f305fc9063f4a98321db12b0b2 # v4l: vsp1: Add underrun debug messege option

upstream:
 - lore: 1651584010-10156-1-git-send-email-erosca@de.adit-jv.com # media: renesas: vsp1: Add VSPD underrun detection & tracing

comments:
 - While the BSP commit isn't applicable as-is, improving the VSP debugging
   infrastructure is useful.
 - This could involve, among other ideas:
   - More error logging, controlled through dynamic debug
   - Counting errors and logging them when stopping the VSP, or exposing the
     counters through sysfs
 - Upstream patch proposal goes in the right direction but needs some more work