RE: [PATCH v1] serial: uart: add hw flow control support configuration

2014-05-01 Thread Karicheri, Muralidharan
Herring; Ian Campbell; Kumar Gala; Randy >Dunlap; Greg >Kroah-Hartman; Jiri Slaby; Shilimkar, Santosh >Subject: Re: [PATCH v1] serial: uart: add hw flow control support configuration > >Hi, > >On Tue, Apr 29, 2014 at 06:22:02PM +0100, Murali Karicheri wrote: >> 8250 uart dri

Re: [PATCH v1] serial: uart: add hw flow control support configuration

2014-04-29 Thread Mark Rutland
Hi, On Tue, Apr 29, 2014 at 06:22:02PM +0100, Murali Karicheri wrote: > 8250 uart driver currently supports only software assisted hw flow > control. The software assisted hw flow control maintains a hw_stopped > flag in the tty structure to stop and start transmission and use modem > status inter

[PATCH v1] serial: uart: add hw flow control support configuration

2014-04-29 Thread Murali Karicheri
8250 uart driver currently supports only software assisted hw flow control. The software assisted hw flow control maintains a hw_stopped flag in the tty structure to stop and start transmission and use modem status interrupt for the event to drive the handshake signals. This is not needed if hw has