mipi_dbi_hw_reset(9)

💅 mipi_dbi_hw_reset — the Kernel API Manual tea 🫖

Okay bestie, so we're diving into the Linux kernel docs, specifically the mipi_dbi_hw_reset page from the Kernel API Manual. Buckle up, it's giving ✨drivers✨ energy.

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🌸 NAME 🌸

mipi_dbi_hw_reset — Hardware reset of controller 💥

Like, literally the hardware reset of the controller. That's the whole vibe check. Iconic, honestly.

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🦋 SYNOPSIS 🦋

void mipi_dbi_hw_reset (struct mipi_dbi *dbi );

No cap, that's the whole signature. She's simple, she's clean, she takes one pointer and she goes. 🔥

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🎀 ARGUMENTS 🎀

• dbi — the MIPI DBI structure, bestie. This is your main character struct, the one whose reset gpio we're about to check on. 💖

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💜 DESCRIPTION 💜

So the vibe here: it resets the controller if the mipi_dbi->reset gpio is set. That's the condition, okay? Not just any old reset — she only pops off when that gpio is actually set. Periodt. 💅

Ngl, if the gpio isn't set, don't expect a hardware reset. That's just the rules. 🙈

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🧚 SEE ALSO 🧚

The lore goes deep, bb. First up, the source file overview itself:

• Kernel file ./drivers/gpu/drm/drm_mipi_dbi.c overview(9)

And the whole bestie squad of related functions:

• 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_check(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_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)

Like, that's the whole friend group, go read all of them iykyk. 🌈

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And that's the tea, bestie! Shoutout to the fine folks at ./drivers/gpu/drm for blessing us with this page, dated October 2026, part of the Kernel API Manual for mipi_dbi_hw_reset(9). Slay, stay reset, and remember: only if the gpio is set 💖✨🎀