soctherm_edp_isr(9)

💅 soctherm_edp_isr 💅

okay so this is a page straight out of the Kernel API Manual (yes, that Kernel API Manual) and it's all about one very specific little interrupt handler bestie, soctherm_edp_isr. her whole personality? turning interrupts off. iconic behavior honestly.

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✨ NAME ✨

soctherm_edp_isr — literally just disables any active interrupts, that's it, that's her whole job 🎀

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🌸 SYNOPSIS 🌸

irqreturn_t soctherm_edp_isr (int irq , void *arg );

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🦋 ARGUMENTS 🦋

• irq — the interrupt request number, aka which interrupt we're talking about 💫
• arg — an opaque pointer to an argument. opaque means don't ask questions, just pass it through, iykyk 🙈

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🔥 DESCRIPTION 🔥

okay so the whole vibe here: she writes the over current interrupt status into the OC_INTR_DISABLE register, which masks any asserted interrupts. why? so the exact same interrupts don't keep triggering this isr over and over again like a group chat you forgot to mute 💀. the thread that gets woken up by this isr is the one who actually handles the asserted interrupts and then goes and unmasks/re-enables them. teamwork, no cap.

and just so we're clear, the OC_INTR_DISABLE register is the one that indicates which OC interrupts have been disabled. she's keeping receipts ✨

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⭐ RETURN ⭐

IRQ_WAKE_THREAD — the handler is politely requesting to wake the handler thread 🫶

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🧚 SEE ALSO 🧚

all her friends, and there are a LOT of them, so buckle up bestie:

Kernel file ./drivers/thermal/tegra/soctherm.c, ccroc_writel(9), ccroc_readl(9), enforce_temp_range(9), thermtrip_program(9), throttrip_program(9), tegra_soctherm_set_hwtrips(9), soctherm_thermal_isr_thread(9), soctherm_oc_intr_enable(9), soctherm_handle_alarm(9), soctherm_edp_isr_thread(9), soctherm_oc_irq_lock(9), soctherm_oc_irq_sync_unlock(9), soctherm_oc_irq_enable(9), soctherm_oc_irq_disable(9), soctherm_oc_irq_map(9), soctherm_irq_domain_xlate_twocell(9), soctherm_oc_int_init(9), soctherm_init_hw_throt_cdev(9), throttlectl_cpu_level_cfg(9), throttlectl_cpu_level_select(9), throttlectl_cpu_mn(9), throttlectl_gpu_level_select(9), soctherm_throttle_program(9) 👑

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lowkey a whole friend group of thermal functions. go read them too, fr fr 🍓

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okay that's the page!! mwah 💖 this one lives in ./drivers/thermal/tegra, and the version of this page you're holding is from October 2026 — so if you're reading this in the future, hi, slay, hope the interrupts are all behaving 😭👑