STRUCT DPU_HW_MDP_OPS(9)

💅 NAME

struct dpu_hw_mdp_ops — the interface to the MDP TOP Hw driver functions, bestie. This is the Kernel API Manual page for it, and yes we're getting into it 💖

The one big assumption going in: these functions will be called after clocks are enabled. Like, clocks first, then everything else. No cap. ✨

🦋 SYNOPSIS

struct dpu_hw_mdp_ops {
    void (*setup_split_pipe)(struct dpu_hw_mdp *mdp, struct split_pipe_cfg *p);
    void (*setup_traffic_shaper)(struct dpu_hw_mdp *mdp, struct traffic_shaper_cfg *cfg);
    bool (*setup_clk_force_ctrl)(struct dpu_hw_mdp *mdp, enum dpu_clk_ctrl_type clk_ctrl, bool enable);
    void (*get_danger_status)(struct dpu_hw_mdp *mdp, struct dpu_danger_safe_status *status);
    void (*setup_vsync_source)(struct dpu_hw_mdp *mdp, struct dpu_vsync_source_cfg *cfg);
    void (*get_safe_status)(struct dpu_hw_mdp *mdp, struct dpu_danger_safe_status *status);
    void (*dp_phy_intf_sel)(struct dpu_hw_mdp *mdp, enum dpu_dp_phy_sel phys[2]);
    void (*intf_audio_select)(struct dpu_hw_mdp *mdp);
 };

🎀 Members 🎀

Okay so here's the cast of characters, one function pointer at a time 👑

• setup_split_pipe — Programs the pipe control registers. ⚠️ Heads up: these registers are not double buffered, so this function should be called before timing control enable. Params: mdp is the mdp top context driver, cfg is the upper and lower part of pipe configuration.
• setup_traffic_shaper — programs traffic shaper control. Params: mdp is the mdp top context driver, cfg is the traffic shaper configuration. It's giving traffic management realness 🚦
• setup_clk_force_ctrl — set clock force control. Params: mdp is the mdp top context driver, clk_ctrl is the clock to be controlled, enable is force on enable. Return: if the clock is forced-on by this function. 💅
• get_danger_status — get danger status. Params: mdp is the mdp top context driver, status is a Pointer to danger safe status. 😭 danger!
• setup_vsync_source — setup vsync source configuration details. Params: mdp is the mdp top context driver, cfg is the vsync source selection configuration. 🦋
• get_safe_status — get safe status. Params: mdp is the mdp top context driver, status is a Pointer to danger safe status. yes it takes the same pointer type as get_danger_status, we love consistency 💖
• dp_phy_intf_sel — configure intf to phy mapping. Params: mdp is the mdp top context driver, phys is the list of phys the DP interfaces should be connected to. And listen — 0 disables the INTF. Noted. 📝
• intf_audio_select — select the external interface for audio. Param: mdp is the mdp top context driver. that's it, that's the whole function 🎧

🌸 SEE ALSO 🌸

Kernel file ./drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.h plus these iconic little structs, go read them too: struct traffic_shaper_cfg(9), struct split_pipe_cfg(9), struct dpu_danger_safe_status(9), struct dpu_vsync_source_cfg(9) 🫶

Okay that's the whole page bestie, periodt ✨ This was the Kernel API Manual, and it lives over in ./drivers/gpu/drm/msm/disp/dpu1 — dated October 2026, so yes, from the future, main character energy fr fr 👑💜