On Mon, Aug 13, 2007 at 12:27:30AM +0200, Guennadi Liakhovetski wrote: > A number of Linkstation models from Buffalo Technology with PPC, ARM, and > also MIPS (I think) CPUs have a power-management controller connected to a > UART. Among other things that chip controlls power and reset buttons. > Working on a standby support for one of these systems (ppc mpc8241 based), > the only suitable wakeup source there is the power button, which means, I > have to configure one of the two system UARTs to not be suspendsd. Using > the device_*_wakeup API doesn't quite work because both serial ports share > one device. The below patch proposes a new port flag UPF_MAY_WAKEUP to > configure such UARTs. It also adds support for a new "can-wakeup" serial > node property to the legacy_serial driver. Shouldn't the ability to wakeup be configured through sysfs, rather than encoded into the device tree? I'm assuming this is just a matter of configuration, and not that the hardware supports waking from one and not the other. -Scott - To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
