* Re: drivers/serial && drivers/char/serial.c in 2.5 && 2.4...
[not found] <20020416174057.F19573@flint.arm.linux.org.uk>
@ 2002-04-17 10:14 ` Guennadi Liakhovetski
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From: Guennadi Liakhovetski @ 2002-04-17 10:14 UTC (permalink / raw)
To: Russell King - ARM Linux; +Cc: ARM Linux kernel, tytso, linux-serial
Hello all
On our StrongARM board we are preserving power by disabling / enabling an
16550 UART. Until now we were doing this in a separate application. But a
better idea would be to have a (arch-specific, of course) pm-call in
uart_open/close (or serial8250_startup/shutdown) functions. How can we do
this? Currently there's just a call to pm_access in uart_start, which is a
dummy, but uart_close DOES have a call to pm_send, but we anyway have to
add knowledge about this specific UART to the driver, right? And we need a
wakeup call in uart_open, I think.
Thanks
Guennadi
---------------------------------
Guennadi Liakhovetski, Ph.D.
DSA Daten- und Systemtechnik GmbH
Pascalstr. 28
D-52076 Aachen
Germany
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