STRUCT BXT_DPIO_PHY_INFO(9)

✨ struct bxt_dpio_phy_info(9) ✨

okay bestie, buckle up 💅 this is a page from the Kernel API Manual, and honestly it's giving "small struct, big responsibilities" energy. It's all about struct bxt_dpio_phy_info — the little container that holds info for a broxton DDI phy 🎀

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🌸 NAME 🌸

struct bxt_dpio_phy_info — hold info for a broxton DDI phy ✨

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🦋 SYNOPSIS 🦋

like, here's literally the whole shape of it, no cap:

struct bxt_dpio_phy_info {
    bool dual_channel;
    enum dpio_phy rcomp_phy;
    int reset_delay;
    u32 pwron_mask;
    struct {
      enum port port;
    } channel[2];
 };

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💖 Members 💖

• dual_channel — true if this phy has a second channel. that's it, that's the whole vibe 🫶
• rcomp_phy — if it's -1, that means this phy has its own rcomp resistor (main character energy, self-sufficient 💅). otherwise, the GRC value gets copied from the phy that this field points at 👑
• reset_delay — the delay, in us, to wait before setting the common reset bit in BXT_PHY_CTL_FAMILY — which is the thing that effectively enables the phy. so yeah, it's the "hold up, wait a sec" timer ⏳
• pwron_mask — a mask with the appropriate bit set that would cause the punit to power this phy if written to BXT_P_CR_GT_DISP_PWRON. basically the magic bit that says "turn it on pls" 🔥
• channel — struct containing per channel information 🧚
• channel.port — which port maps to this channel. simple as that 🍓

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/i915/display/intel_dpio_phy.c
• DPIO(9)

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lowkey obsessed with how much lore is packed into such a tiny struct, fr fr 😭

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that's the whole page bestie, hope it slayed 💖✨ this one's from ./drivers/gpu/drm/i915/display, dated October 2026, and it's struct bxt_dpio_phy_info(9) — periodt 🎀💜