STRUCT S3C_FB_PLATDATA(9)

💅 struct s3c_fb_platdata(9) — from the Kernel API Manual, bestie 💅

okay so picture this: it's a struct s3c_fb_platdata, and it is literally the S3C driver's little platform-specific info packet. like, everything the driver needs to know about your particular board? it's in here. main character energy fr fr 🫶

✨ SYNOPSIS ✨

struct s3c_fb_platdata {
    void (*setup_gpio)(void);
    struct s3c_fb_pd_win    *win[S3C_FB_MAX_WIN];
    struct fb_videomode     *vtiming;
    u32 vidcon0;
    u32 vidcon1;
 };

no cap, that's the whole vibe. now let's get into the members one by one, because each one is iconic in its own way 🎀

🌸 Members 🌸

• setup_gpio — a function pointer that sets up the external GPIO pins into the right state so the data can actually travel from the display system over to the connected display device. it's giving "get the pins dressed and ready for the runway" 💅
• win — the setup data for each hardware window. one per window, in an array of S3C_FB_MAX_WIN, and if a window isn't being used you just set it to NULL. unused windows stay unbothered, as they should 🙈
• vtiming — the video timing, used when you're connected to a RGB type panel. that's the whole point of it, periodt.
• vidcon0 — the base vidcon0 values that control the panel data format. yes, the format. it matters. 🔥
• vidcon1 — the base vidcon1 values that control the panel data output. different register, different job, don't mix them up bestie 😭

🦋 Description 🦋

so what does this thing do? it's the platform data, and it supplies the video driver with all the information it requires to work with the display(s) attached to the machine. all of it. no holding back. 💖

it controls the initial mode, and it controls the number of display windows that get initialised — and heads up, 0 is always the base framebuffer, so don't come for that one. it's etc. it's giving "project manager of the display subsystem" and honestly? obsessed. ✨

👑 SEE ALSO 👑

• Kernel file ./include/linux/platform_data/video_s3c.h
• struct s3c_fb_pd_win(9)

okay that's the whole page, you ate that reading it 🌈 and for the record, this came out of ./include/linux/platform_data, dated October 2026, and the manual still calls it struct s3c_fb_platdata(9) — so go forth and configure your displays, bestie, ily, bye 🧚💜