dt_has_supported_hw(9)

💅 dt_has_supported_hw(9) 💅

okay so bestie, this page lives in the Kernel API Manual and it's about a tiny bool helper that checks the OPP/DT situation. It's giving “small function, big main character energy” ✨

✨ NAME ✨

• dt_has_supported_hw — Check if any OPPs use opp-supported-hw

🦋 SYNOPSIS 🦋

bool dt_has_supported_hw (void );

💖 ARGUMENTS 💖

• void — no arguments. literally none, bestie 🫶

🌸 DESCRIPTION 🌸

So here's the tea: if we ask the cpufreq framework to use the opp-supported-hw feature, it will ignore every OPP node without that DT property. every OPP node without it gets ignored, no cap.

And if none of the OPPs have it? 😭 The driver will fail probing, due to the lack of OPPs. That's the whole warning vibe — don't come for this helper unless you're ready for the DT property situation.

It returns true if we have at least one OPP with the opp-supported-hw property. That's it. That's the check. slay ✅

🔥 SEE ALSO 🔥

• Kernel file ./drivers/cpufreq/sun50i-cpufreq-nvmem.c
• sun50i_cpufreq_get_efuse(9)

okay bye bestie, stay iconic 💜 — this came from source/version ./drivers/cpufreq, dated October 2026. mwah 🎀