STRUCT ADC_TM5_CHIP(9)

💖 struct adc_tm5_chip(9) 💖

okay so bestie, welcome to the Kernel API Manual — this is the page for struct adc_tm5_chip, aka the ADC Thermal Monitoring properties. it's giving "one struct to hold all the TM vibes" and honestly? iconic. ✨

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🌸 NAME 🌸

struct adc_tm5_chip — ADC Thermal Monitoring properties 🎀

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✨ SYNOPSIS ✨

here's the whole squad, literally every member, copied exactly so you don't have to squint:

struct adc_tm5_chip {
    struct regmap           *regmap;
    struct device           *dev;
    const struct adc_tm5_data       *data;
    struct adc_tm5_channel  *channels;
    unsigned int            nchannels;
    unsigned int            decimation;
    unsigned int            avg_samples;
    u16 base;
    struct mutex            adc_mutex_lock;
 };

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🦋 Members 🦋

okay so let's meet the cast, one by one, no cap:

• regmap — the register map field for the SPMI ADC5 Thermal Monitoring peripheral. it's the map, bestie, it maps. 🗺️
• dev — the SPMI ADC5 device. your main character device, periodt. 👑
• data — software configuration data. yes, the config data, lowkey the brains of the operation. 🧠
• channels — array of ADC TM channel data. all the channels, living in an array, thriving. 🌈
• nchannels — amount of channels defined/allocated. it's a headcount fr fr. 🔢
• decimation — sampling rate supported for the channel. Applies to all channels, used only on Gen1 ADC_TM. so like, every channel gets it, but Gen1 only — iykyk. 💅
• avg_samples — ability to provide single result from the ADC that is an average of multiple measurements. Applies to all channels, used only on Gen1 ADC_TM. one result, many measurements, average behavior, we love a team player. 🫶
• base — base address of TM registers. the starting point, the origin story. ⭐
• adc_mutex_lock — ADC_TM mutex lock, used only on Gen2 ADC_TM. It is used to ensure only one ADC channel configuration is done at a time using the shared set of configuration registers.

🚨 okay so this is the important one: that mutex is Gen2 only, and it exists so only one ADC channel config happens at a time, because the configuration registers are shared. do not skip the lock, bestie, that's how you get chaos. 😭

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🎀 SEE ALSO 🎀

go read these next, bestie, they're literally in the kernel file ./drivers/thermal/qcom/qcom-spmi-adc-tm5.c:

• struct adc_tm5_channel(9) — the channel struct, the sequel we all needed. 🍓

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that's the whole page!! shoutout to ./drivers/thermal/qcom for bringing us this masterpiece, dated October 2026 — mwah, ty for your service, slay 💜🧚‍♀️