drm_mipi_db...atomic_check(9)

✨ drm_mipi_db...atomic_check(9) ✨

Okay bestie, welcome to the Kernel API Manual 💖 — no cap, this is the glow-up of drm_mipi_dbi_crtc_helper_atomic_check, and it's giving "small function, big responsibilities." Let's get into it. 🫶

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🌸 NAME 🌸

drm_mipi_dbi_crtc_helper_atomic_check — the MIPI DBI CRTC check helper. literally what it says on the label, and she ate 💅

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🦋 SYNOPSIS 🦋

int drm_mipi_dbi_crtc_helper_atomic_check (struct drm_crtc *crtc ,
       struct drm_atomic_commit *state );

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🎀 ARGUMENTS 🎀

• crtc — the CRTC you want to check, bestie. that's the one. 👀
• state — the atomic state. the whole vibe, the whole situation, the whole commit-in-progress ✨

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💜 DESCRIPTION 💜

So here's the tea ☕: this function runs the default checks on the CRTC of a MIPI DBI device, and it also makes sure that the primary plane has been set up correctly. no sloppy planes on her watch, fr fr 🙈

Drivers can use this as their struct drm_crtc_helper_funcs.atomic_check callback. like, that's literally her job — plug her in and she does the vibe check for you 🔥

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⭐ RETURN ⭐

0 on success, or a negative errno code otherwise. iconic behavior honestly — zero means slay, negative means something's off 😭

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🌈 SEE ALSO 🌈

Squad roll call, everybody say hi 👑:

• Kernel file ./drivers/gpu/drm/drm_mipi_dbi.c overview(9)
• mipi_dbi_command_read(9)
• mipi_dbi_command_buf(9)
• mipi_dbi_buf_copy(9)
• drm_mipi_dbi_crtc_helper_mode_valid(9)
• drm_mipi_dbi_plane_helper_atomic_check(9)
• drm_mipi_dbi_plane_helper_atomic_update(9)
• drm_mipi_dbi_crtc_helper_atomic_disable(9)
• drm_mipi_dbi_connector_helper_get_modes(9)
• drm_mipi_dbi_dev_init(9)
• mipi_dbi_hw_reset(9)
• mipi_dbi_display_is_on(9)
• mipi_dbi_poweron_reset(9)
• mipi_dbi_poweron_conditional_reset(9)
• mipi_dbi_spi_cmd_max_speed(9)
• mipi_dbi_spi_init(9)
• mipi_dbi_spi_transfer(9)
• mipi_dbi_debugfs_init(9)

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ok that's the whole page, bestie — go forth and atomic-check responsibly 💀✨

mwah 💋 this lil page came from ./drivers/gpu/drm, dated October 2026, and it will forever be known as drm_mipi_db...atomic_check(9). periodt. 🎀