ti_bandgap_read_temp(9)

💅 ti_bandgap_read_temp — bestie edition

okay so this is a page from the Kernel API Manual (yes, the (9) section, we're being fancy today ✨) and it's all about ti_bandgap_read_temp. it's literally the little helper that goes and gets the temperature. iconic behaviour, honestly. 🎀

✨ NAME ✨

ti_bandgap_read_temp — the helper function that reads the sensor temperature 🫶

✨ SYNOPSIS ✨

u32 ti_bandgap_read_temp (struct ti_bandgap *bgp , int id );

✨ ARGUMENTS ✨

• bgp — a pointer to the ti_bandgap structure. that's your whole bandgap situation right there 💜
• id — the bandgap sensor id. which sensor are we talking to, bestie? 🔍

✨ DESCRIPTION ✨

so this function is basically the designated driver for reading the sensor temperature register 🚗✨ it bundles all the steps together in one place so nobody has to re-do the whole routine every time.

and why does it exist, you ask? because — plot twist — depending on which version of the bandgap device you've got, you might need to freeze the bandgap state machine first, before you go fetching the register value. 😭 like, you gotta pause the whole vibe before you peek at the number. that's the whole reason this function is a thing. no cap.

✨ RETURN ✨

the temperature, in ADC values 🌡️✨

✨ SEE ALSO ✨

• the kernel file ./drivers/thermal/ti-soc-thermal/ti-bandgap.c — go read the source, iykyk 📖
• ti_bandgap_readl(9)
• ti_bandgap_writel(9)
• macro to update bits.(9)
• ti_bandgap_power(9)
• ti_errata814_bandgap_read_temp(9)
• ti_bandgap_talert_irq_handler(9)
• ti_bandgap_tshut_irq_handler(9)
• ti_bandgap_adc_to_mcelsius(9)
• ti_bandgap_validate(9)
• ti_bandgap_read_counter(9)
• ti_bandgap_read_counter_delay(9)
• ti_bandgap_read_update_interval(9)
• ti_bandgap_write_counter_delay(9)
• ti_bandgap_write_counter(9)
• ti_bandgap_write_update_interval(9)
• ti_bandgap_read_temperature(9)
• ti_bandgap_set_sensor_data(9)
• ti_bandgap_get_sensor_data(9)
• ti_bandgap_force_single_read(9)
• ti_bandgap_set_continuous_mode(9)
• ti_bandgap_get_trend(9)
• ti_bandgap_tshut_init(9)
• ti_bandgap_talert_init(9)
• ti_bandgap_build(9)

that's the whole read, bestie 💖 this little chapter lives over in ./drivers/thermal/ti-soc-thermal, and it's dated October 2026 — yes, the future, we're built different ⭐👑 go touch some registers, ily, bye 🦋🌸