From: Kendall Willis Date: Fri, 16 Jan 2026 19:55:49 +0000 (-0600) Subject: serial: 8250: omap: set out-of-band wakeup if wakeup pinctrl exists X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b64da5b16ab3c5dcc6e95180891d1c10eda83ffd;p=thirdparty%2Fkernel%2Flinux.git serial: 8250: omap: set out-of-band wakeup if wakeup pinctrl exists In TI K3 SoCs, I/O daisy chaining is used to allow wakeup from UART when the UART controller is off. Set UART device as wakeup capable using out-of-band wakeup if the 'wakeup' pinctrl state exists and the device may wakeup. Reviewed-by: Dhruva Gole Signed-off-by: Kendall Willis Link: https://patch.msgid.link/20260116-uart-wakeup-v2-1-0078ae9996e4@ti.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c index 272bc07c9a6b..8c88e0f47cd9 100644 --- a/drivers/tty/serial/8250/8250_omap.c +++ b/drivers/tty/serial/8250/8250_omap.c @@ -1382,6 +1382,8 @@ static int omap8250_select_wakeup_pinctrl(struct device *dev, if (!device_may_wakeup(dev)) return 0; + device_set_out_band_wakeup(dev); + return pinctrl_select_state(priv->pinctrl, priv->pinctrl_wakeup); }