Re: [PATCH v2] serial: OMAP: add RS485 support

2013-08-13 Thread Mark Jackson
On 12/08/13 23:56, Greg KH wrote: On Sun, Aug 11, 2013 at 02:56:50PM +0100, Mark Jackson wrote: This patch adds RS485 support to the OMAP serial driver, as defined in:- Documentation/devicetree/bindings/serial/rs485.txt When a UART transmitter is connected to (eg) a RS485 driver, it is

Re: [PATCH v2] serial: OMAP: add RS485 support

2013-08-13 Thread Javier Martinez Canillas
On Tue, Aug 13, 2013 at 12:22 PM, Mark Jackson mpfj-l...@newflow.co.uk wrote: On 12/08/13 23:56, Greg KH wrote: On Sun, Aug 11, 2013 at 02:56:50PM +0100, Mark Jackson wrote: This patch adds RS485 support to the OMAP serial driver, as defined in:-

Re: [PATCH v2] serial: OMAP: add RS485 support

2013-08-13 Thread Mark Jackson
On 13/08/13 11:54, Javier Martinez Canillas wrote: snip Hi Mark, I've seen several attempts to add RS485 support to the omap serial driver and it is always nack-ed. There seems to be concerns about controlling the RTS by software when RS485 is not supported by the UART hardware. Please

Re: [PATCH v2] serial: OMAP: add RS485 support

2013-08-13 Thread Javier Martinez Canillas
On Tue, Aug 13, 2013 at 1:07 PM, Mark Jackson mpfj-l...@newflow.co.uk wrote: On 13/08/13 11:54, Javier Martinez Canillas wrote: snip Hi Mark, I've seen several attempts to add RS485 support to the omap serial driver and it is always nack-ed. There seems to be concerns about controlling

Re: [PATCH v2] serial: OMAP: add RS485 support

2013-08-13 Thread Greg KH
On Tue, Aug 13, 2013 at 12:54:47PM +0200, Javier Martinez Canillas wrote: On Tue, Aug 13, 2013 at 12:22 PM, Mark Jackson mpfj-l...@newflow.co.uk wrote: On 12/08/13 23:56, Greg KH wrote: On Sun, Aug 11, 2013 at 02:56:50PM +0100, Mark Jackson wrote: This patch adds RS485 support to the OMAP

Re: [PATCH v2] serial: OMAP: add RS485 support

2013-08-13 Thread Greg KH
On Tue, Aug 13, 2013 at 12:07:01PM +0100, Mark Jackson wrote: On 13/08/13 11:54, Javier Martinez Canillas wrote: snip Hi Mark, I've seen several attempts to add RS485 support to the omap serial driver and it is always nack-ed. There seems to be concerns about controlling the

Re: [PATCH v2] serial: OMAP: add RS485 support

2013-08-13 Thread Greg KH
On Tue, Aug 13, 2013 at 11:22:54AM +0100, Mark Jackson wrote: On 12/08/13 23:56, Greg KH wrote: On Sun, Aug 11, 2013 at 02:56:50PM +0100, Mark Jackson wrote: This patch adds RS485 support to the OMAP serial driver, as defined in:- Documentation/devicetree/bindings/serial/rs485.txt

Re: [PATCH v2] serial: OMAP: add RS485 support

2013-08-13 Thread Javier Martinez Canillas
On Tue, Aug 13, 2013 at 8:50 PM, Greg KH gre...@linuxfoundation.org wrote: On Tue, Aug 13, 2013 at 12:54:47PM +0200, Javier Martinez Canillas wrote: On Tue, Aug 13, 2013 at 12:22 PM, Mark Jackson mpfj-l...@newflow.co.uk wrote: On 12/08/13 23:56, Greg KH wrote: On Sun, Aug 11, 2013 at

Re: [PATCH v2] serial: OMAP: add RS485 support

2013-08-12 Thread Greg KH
On Sun, Aug 11, 2013 at 02:56:50PM +0100, Mark Jackson wrote: This patch adds RS485 support to the OMAP serial driver, as defined in:- Documentation/devicetree/bindings/serial/rs485.txt When a UART transmitter is connected to (eg) a RS485 driver, it is necessary to turn the driver on/off