STRUCT DPU_VSYNC_SOURCE_CFG(9)

✨ struct dpu_vsync_source_cfg ✨

okay bestie, gather round because we're about to talk about the struct dpu_vsync_source_cfg(9) from the Kernel API Manual — and no, it's not as scary as it sounds, promise 🫶

this struct is literally here to configure vsync source and configure the watchdog timers if required — like it's giving "I'm the main character of display sync" energy, periodt 💅

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🌸 SYNOPSIS 🌸

here's the whole vibe, exactly as it lives in the code — no cap, copy it verbatim:

struct dpu_vsync_source_cfg {
    u32 pp_count;
    u32 frame_rate;
    u32 ppnumber[PINGPONG_MAX];
    enum dpu_vsync_source vsync_source;
};

look at her. iconic. she's got four members and she knows it 💖

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🎀 Members 🎀

okay so let's break down each member like we're doing a vibe check on everyone in the group chat:

• pp_count — this is the number of ping pongs active 🏓 like literally how many ping pongs are up and running, not a drill
• frame_rate — the Display frame rate ✨ aka how fast the frames are coming at you, slay
• ppnumber — the ping pong index array 🦋 it's an array (size PINGPONG_MAX, iykyk) holding all the ping pong indices
• vsync_source — the vsync source selection 👑 this is the actual choice of where your vsync comes from, the moment of truth

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🌈 SEE ALSO 🌈

if you're obsessed (and you should be), go check out the Kernel file ./drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h — it's lowkey the mothership 🚀

and bestie, the whole fam is there too:

• struct traffic_shaper_cfg(9) 🔥
• struct split_pipe_cfg(9) 💜
• struct dpu_danger_safe_status(9) 💀
• struct dpu_hw_mdp_ops(9) 🧚

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ngl this struct is a whole mood: it just carries config data and minds its own business. no functions, no surprises. just vibes and watchdog timer configuration if required 🎀

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and that's the tea, bestie 🍓 this page came from ./drivers/gpu/drm/msm/disp/dpu1, dated October 2026, and yes it's struct dpu_vsync_source_cfg(9) all the way down — go off, kernel docs, periodt 💅✨