Re: [PATCH] serial: 8250: Make ISA ports optional

2015-01-09 Thread Peter Hurley
On 01/09/2015 03:48 AM, Arnd Bergmann wrote: > On Friday 09 January 2015 00:13:28 Peter Hurley wrote: >> On 01/08/2015 05:05 PM, Arnd Bergmann wrote: >>> On Thursday 08 January 2015 11:11:51 Peter Hurley wrote: This interface is just storage and minor allocation, since the port-reuse

Re: [PATCH] serial: 8250: Make ISA ports optional

2015-01-09 Thread Arnd Bergmann
On Friday 09 January 2015 00:13:28 Peter Hurley wrote: > On 01/08/2015 05:05 PM, Arnd Bergmann wrote: > > On Thursday 08 January 2015 11:11:51 Peter Hurley wrote: > >> > >> This interface is just storage and minor allocation, since the > >> port-reuse behavior will be limited to the "universal" dri

Re: [PATCH] serial: 8250: Make ISA ports optional

2015-01-08 Thread Peter Hurley
On 01/08/2015 05:05 PM, Arnd Bergmann wrote: > On Thursday 08 January 2015 11:11:51 Peter Hurley wrote: >> >> This interface is just storage and minor allocation, since the >> port-reuse behavior will be limited to the "universal" driver. >> From a sub-driver perspective, the shared storage is actu

Re: [PATCH] serial: 8250: Make ISA ports optional

2015-01-08 Thread Peter Hurley
On 01/08/2015 05:36 PM, One Thousand Gnomes wrote: >> One idea that has come up in the past but never saw an implementation >> is to make the ttyS namespace and minor numbers completely generic and >> let any serial port driver use it. This would be a major rework, but >> have the added advantage o

Re: [PATCH] serial: 8250: Make ISA ports optional

2015-01-08 Thread One Thousand Gnomes
> One idea that has come up in the past but never saw an implementation > is to make the ttyS namespace and minor numbers completely generic and > let any serial port driver use it. This would be a major rework, but > have the added advantage of cleaning up a number of other namespace > issues as w

Re: [PATCH] serial: 8250: Make ISA ports optional

2015-01-08 Thread Arnd Bergmann
On Thursday 08 January 2015 11:11:51 Peter Hurley wrote: > > This interface is just storage and minor allocation, since the > port-reuse behavior will be limited to the "universal" driver. > From a sub-driver perspective, the shared storage is actually > a hindrance, so that reduces the requiremen

Re: [PATCH] serial: 8250: Make ISA ports optional

2015-01-08 Thread Peter Hurley
On 01/08/2015 08:10 AM, One Thousand Gnomes wrote: > On Mon, 5 Jan 2015 22:09:45 -0500 > Peter Hurley wrote: > >> Some arches have no need to create unprobed 8250 ports; these phantom >> ports are primarily required for ISA ports which have no probe >> mechanism or to provide non-operational por

Re: [PATCH] serial: 8250: Make ISA ports optional

2015-01-08 Thread One Thousand Gnomes
On Mon, 5 Jan 2015 22:09:45 -0500 Peter Hurley wrote: > Some arches have no need to create unprobed 8250 ports; these phantom > ports are primarily required for ISA ports which have no probe > mechanism or to provide non-operational ports for userspace to > configure (via TIOCSSERIAL and TIOCSER

Re: [PATCH] serial: 8250: Make ISA ports optional

2015-01-07 Thread Arnd Bergmann
On Tuesday 06 January 2015 16:47:55 Peter Hurley wrote: > On 01/06/2015 02:43 PM, Arnd Bergmann wrote: > > On Tuesday 06 January 2015 09:32:02 Peter Hurley wrote: > >> On 01/06/2015 08:13 AM, Arnd Bergmann wrote: > >>> On Monday 05 January 2015 22:09:45 Peter Hurley wrote: > Some arches have n

Re: [PATCH] serial: 8250: Make ISA ports optional

2015-01-06 Thread Peter Hurley
On 01/06/2015 02:43 PM, Arnd Bergmann wrote: > On Tuesday 06 January 2015 09:32:02 Peter Hurley wrote: >> On 01/06/2015 08:13 AM, Arnd Bergmann wrote: >>> On Monday 05 January 2015 22:09:45 Peter Hurley wrote: Some arches have no need to create unprobed 8250 ports; these phantom ports are

Re: [PATCH] serial: 8250: Make ISA ports optional

2015-01-06 Thread Arnd Bergmann
On Tuesday 06 January 2015 09:32:02 Peter Hurley wrote: > On 01/06/2015 08:13 AM, Arnd Bergmann wrote: > > On Monday 05 January 2015 22:09:45 Peter Hurley wrote: > >> Some arches have no need to create unprobed 8250 ports; these phantom > >> ports are primarily required for ISA ports which have no

Re: [PATCH] serial: 8250: Make ISA ports optional

2015-01-06 Thread Peter Hurley
On 01/06/2015 08:13 AM, Arnd Bergmann wrote: > On Monday 05 January 2015 22:09:45 Peter Hurley wrote: >> Some arches have no need to create unprobed 8250 ports; these phantom >> ports are primarily required for ISA ports which have no probe >> mechanism or to provide non-operational ports for users

Re: [PATCH] serial: 8250: Make ISA ports optional

2015-01-06 Thread Arnd Bergmann
On Monday 05 January 2015 22:09:45 Peter Hurley wrote: > Some arches have no need to create unprobed 8250 ports; these phantom > ports are primarily required for ISA ports which have no probe > mechanism or to provide non-operational ports for userspace to > configure (via TIOCSSERIAL and TIOCSERCO