dmtimer_read(9)

dmtimer_read(9) — Kernel API Manual ✨

Okay so welcome to the Kernel API Manual, bestie — this is dmtimer_read(9), and it’s literally about reading timer registers in posted and non-posted mode. 💅

✨ SYNOPSIS ✨

u32 dmtimer_read (struct dmtimer *timer , u32 reg );

🎀 ARGUMENTS 🎀

• timer — the timer pointer over which the read operation is performed. Like, this is the timer you’re doing the read through. 🫶
• reg — the lowest byte holds the register offset. Yep, that’s the vibe. ✨

🦋 DESCRIPTION 🦋

So the posted mode bit is encoded in reg. Important: in posted mode, the write pending bit must be checked. Otherwise, a read of a non completed write will produce an error. 😭 That’s the whole warning, and it’s giving “do not skip this, bestie.” 💀

🌸 SEE ALSO 🌸

• Kernel file: ./drivers/clocksource/timer-ti-dm.c
• dmtimer_write(9)
• omap_dm_timer_request_by_node(9)
• omap_dm_timer_modify_idlect_mask(9)
• omap_dm_timer_set_int_disable(9)
• omap_dm_timer_cap_counter(9)
• omap_dm_timer_probe(9)
• omap_dm_timer_remove(9)

Source/version: ./drivers/clocksource · Date: October 2026 · Page: dmtimer_read(9) — mwah, slay, bye bestie 💜🧚‍♀️