ufshcd_quir...pa_tactivate(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ufshcd_quirk_tune_host_pa_tactivate 💅

okay so bestie, welcome to the Kernel API Manual entry for ufshcd_quirk_tune_host_pa_tactivate — yes that's the whole name, she's long, she's iconic, she's a UFS quirk fixer and honestly? she ate. 🦋

✨ NAME ✨

ufshcd_quirk_tune_host_pa_tactivate — the function whose entire job is making sure the host's PA_TACTIVATE stays less than the device's PA_TACTIVATE time. that's it. that's her whole personality. 🎀

🌸 SYNOPSIS 🌸

int ufshcd_quirk_tune_host_pa_tactivate (struct ufs_hba *hba );

🫶 ARGUMENTS 🫶

  • hba — the per-adapter instance. like, the one HBA we're doing this little tune-up for. 💖

💜 DESCRIPTION 💜

so here's the vibe: some UFS devices are high-maintenance (respectfully) and they require the host's PA_TACTIVATE to be lower than the device's PA_TACTIVATE. not equal, not higher — lower. periodt. 😭

for those picky little devices, we need to enable the UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE quirk. that's literally the whole plot. no cap. ✨

🔥 RETURN 🔥

  • zero on success 💖
  • non-zero error value on failure 💀

👑 SEE ALSO 👑

bestie, this list is long — it's giving "the entire UFS driver said hi." no worries though, every single one is right here, in order, untouched. go read them all, iykyk. 🌈

also: this all lives in the kernel file ./drivers/ufs/core/ufshcd.c 🎀

💀 quick vibe check: none of the above is optional reading if you're deep in UFS-land. the list is the list, bestie. 🍓

and that's the page!! 🧚 mwah 💋 — brought to you by ./drivers/ufs/core (that's the source, and the version is the same as always), stamped October 2026, straight from the Kernel API Manual. slay, go tune those PA_TACTIVATE values. ⭐👑

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