Re: [PATCH v4 0/4] arm64: dts: ti: k3-am62: Support Main UART wakeup
From: Kevin Hilman <khilman@baylibre.com>
Date: 2026-01-27 20:14:20
Also in:
linux-devicetree, lkml
Kendall Willis [off-list ref] writes:
This series adds wakeup support for the Main UART in the device tree of the TI AM62 family of devices. It defines the specific pins and pinctrl states needed to wakeup the system from the Main UART via I/O daisy-chaining. The wakeup-source property is configured to describe the low power modes the system can wakeup from using the Main UART. Dependency ---------- This series depends on the "serial: 8250: omap: set out-of-band wakeup if wakeup pinctrl exists" [1] patch. This series should NOT be merged until "serial: 8250: omap: set out-of-band wakeup if wakeup pinctrl exists" is merged. Testing ------- Tested on a AM62P SK EVM board and a AM62L EVM board with all the above mentioned series implemented. Suspend/resume verified with the Main UART wakeup source by entering a keypress on the console. This github branch has all the necessary patches to test the series using v6.19-rc1: https://github.com/kwillis01/linux/tree/v6.19/uart-daisy-chain/all [1] https://lore.kernel.org/all/20260116-uart-wakeup-v2-1-0078ae9996e4@ti.com/ (local)
Reviewed-by: Kevin Hilman <khilman@baylibre.com>