STRUCT ROCKCHIP_HDMI_CHIP_DATA(9)

okay so bestie, welcome to the Kernel API Manual, and today's main character is struct rockchip_hdmi_chip_data 💅 this is the little struct that splits up the grf settings for different kinds of chips, and we're gonna go through it together, no cap ✨

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🌸 NAME 🌸

struct rockchip_hdmi_chip_data — splite (yes that's literally how it's spelled in the source, don't come for me 💀) the grf setting of kind of chips 🎀

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🦋 SYNOPSIS 🦋

struct rockchip_hdmi_chip_data {
    int lcdsel_grf_reg;
    u32 lcdsel_big;
    u32 lcdsel_lit;
    int max_tmds_clock;
 };

like, that's the whole vibe check right there — four fields, zero drama 🫶

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💖 Members 💖

okay these are the members and they each have a job, let's go 🔥

• lcdsel_grf_reg — the grf register offset of lcdc select ✨ literally just telling you where in the grf that lcdc select situation lives
• lcdsel_big — the reg value for selecting vop big for HDMI 👑 big vop energy only
• lcdsel_lit — the reg value for selecting vop little for HDMI 🍓 and yes, the field is called lit, not little, that's just the name, iykyk
• max_tmds_clock — the maximum TMDS clock rate supported ⏰ the ceiling, the limit, the "that's enough" of clock rates

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🌈 SEE ALSO 🌈

if you wanna go deeper (and you know you do 🙈), check the kernel file:

./drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c

that's where all the lore lives 📖

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lowkey reminder bestie: the exact field names, types and order in the struct are load-bearing — don't be out here renaming stuff, that's not the vibe 💀

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and that's the page, periodt 🎀 this was struct rockchip_hdmi_chip_data(9) from the Kernel API Manual, living over in ./drivers/gpu/drm/rockchip and dated October 2026 — mwah, go slay your HDMI chip data, bestie 💜🫶