evergreen_hpd_set_polarity(9)

✨ evergreen_hpd_set_polarity(9) ✨

okay so bestie, welcome to the Kernel API Manual entry for evergreen_hpd_set_polarity(9) — yes it's a whole mouthful, yes it's iconic, let's get into it 💅

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💖 NAME 💖

evergreen_hpd_set_polarity — the hpd set polarity callback. that's it. that's the whole vibe 🎀

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🌸 SYNOPSIS 🌸

void evergreen_hpd_set_polarity (struct radeon_device *rdev , enum
radeon_hpd_id hpd );

like look at her. void return, two args, no notes. she's giving minimalist queen 👑

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🦋 ARGUMENTS 🦋

• rdev — a radeon_device pointer, aka the radeon device we're working with 🫶
• hpd — the hpd (hotplug detect) pin. that's the pin, bestie 🔌

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🌈 DESCRIPTION 🌈

so basically this sets the polarity of the hpd pin — and this is for evergreen+, iykyk ⭐

that's genuinely the whole thing. no cap, no hidden lore, just polarity-setting for hotplug detect on evergreen and later chips 💀

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👑 SEE ALSO 👑

the kernel file lives right here:

./drivers/gpu/drm/radeon/evergreen.c

and here's the whole friend group, in order, fr fr:

• evergreen_get_allowed_info_register(9)
• dce4_wait_for_vblank(9)
• evergreen_page_flip(9)
• evergreen_page_flip_pending(9)
• sumo_pm_init_profile(9)
• btc_pm_init_profile(9)
• evergreen_pm_misc(9)
• evergreen_pm_prepare(9)
• evergreen_pm_finish(9)
• evergreen_hpd_sense(9)
• evergreen_hpd_init(9)
• evergreen_hpd_fini(9)
• evergreen_bandwidth_update(9)
• evergreen_mc_wait_for_idle(9)
• evergreen_gfx_is_lockup(9)

like, evergreen_hpd_init(9) and evergreen_hpd_fini(9) are literally her siblings, go say hi 💖

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anyway that's the page!! shoutout to the ./drivers/gpu/drm/radeon directory and the October 2026 release for making this all happen — mwah, love u, bye bestie 🍓🧚💜