BASIC GPIO GATED CLOCK WHICH CAN BE ENABLED AND DISABLED(9)

💅 basic gpio g...and disabled(9) — Kernel API Manual

okay so bestie, welcome to the glow-up doc for the basic gpio gated clock which can be enabled and disabled with gpio output. it's a clock, it's gated, and a GPIO pin is doing the gating. iconic behaviour honestly ✨

🎀 DESCRIPTION

this is a basic gpio gated clock which can be enabled and disabled with a gpio output. that's the whole vibe. let's break down its traits because the way this thing is built is lowkey elegant 🦋

• prepare — clk_prepare / clk_unprepare are functional and they control a gpio that can sleep 😴 fr fr, that's the sleepy one.
• enable — clk_enable and clk_disable are functional and they control a non-sleeping gpio. no napping allowed on this path 💅
• rate — inherits its rate from its parent. no clk_set_rate support, so don't even try it 🙈
• parent — fixed parent, periodt. no clk_set_parent support either 👑

ngl, the split between prepare and enable here is doing main character energy — sleepy gpio on one side, wide-awake gpio on the other 🫶

✨ SEE ALSO ✨

• Kernel file ./drivers/clk/clk-gpio.c
• struct clk_gpio(9)
• basic clock multiplexer which can be controlled with a gpio output(9)
• gated fixed clock, controlled with a gpio output and a regulator(9)
• struct clk_gated_fixed(9)

that's the whole page bestie, short and slay 💖 it lives over in ./drivers/clk, October 2026 edition — go read the source, it's giving lore 🌸