Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1202953

Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic transfers

From Russell King - ARM Linux <linux@arm.linux.org.uk>
Newsgroups linux.kernel
Subject Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic transfers
Date 2015-08-07 19:50 +0200
Message-ID <pUTWi-6zF-3@gated-at.bofh.it> (permalink)
References (5 earlier) <pURrs-35x-11@gated-at.bofh.it> <pURUu-3H0-15@gated-at.bofh.it> <pUS4a-3Sp-9@gated-at.bofh.it> <pUSQx-52p-9@gated-at.bofh.it> <pUTCV-6dc-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


On Fri, Aug 07, 2015 at 01:23:20PM -0400, Peter Hurley wrote:
> The omap-serial driver which doesn't use dma is still the preferred
> stable driver for omap, for the moment.
> 
> One of the main features of the 8250_omap integration was the addition
> of dma support. Without it, 8250_omap is ttyO in ttyS clothing.

Correct.  omap-serial used to have broken DMA support, and I had a
series of patches fixing it.  Unfortunately, despite TI asking me to
work on this, TI went ahead and removed the DMA support behind my
back, which totally screwed my patch series after I merged some of
its pre-requists.  It was then decided that DMA support was no longer
an important feature, so I dropped the patch set.

So, I'm well aware of the issues here, and the problems of using the
OMAP sDMA with the UARTs.

-- 
FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up
according to speedtest.net.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

[PATCH] dma: omap-dma: add support for pause of non-cyclic transfers Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2015-08-07 10:50 +0200
  Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic  transfers Peter Ujfalusi <peter.ujfalusi@ti.com> - 2015-08-07 11:50 +0200
    Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic transfers Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2015-08-07 12:40 +0200
      Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic  transfers Peter Ujfalusi <peter.ujfalusi@ti.com> - 2015-08-07 13:50 +0200
        Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic transfers Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2015-08-07 14:50 +0200
      Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic  transfers Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-07 15:30 +0200
        Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic transfers Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2015-08-07 15:50 +0200
          Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic  transfers Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-07 16:00 +0200
            Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic transfers Peter Hurley <peter@hurleysoftware.com> - 2015-08-07 17:10 +0200
              Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic  transfers Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-07 17:40 +0200
                Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic transfers Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2015-08-07 17:50 +0200
                Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic  transfers Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-07 18:40 +0200
                Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic transfers Peter Hurley <peter@hurleysoftware.com> - 2015-08-07 19:30 +0200
                Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic  transfers Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-07 19:50 +0200
                Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic transfers Peter Hurley <peter@hurleysoftware.com> - 2015-08-07 18:10 +0200
                Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic transfers Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2015-08-07 18:30 +0200
                Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic  transfers Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-07 18:40 +0200
                Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic  transfers Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-07 18:40 +0200
                Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic transfers Peter Hurley <peter@hurleysoftware.com> - 2015-08-07 20:30 +0200
                Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic  transfers Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-07 20:40 +0200
                Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic transfers Peter Hurley <peter@hurleysoftware.com> - 2015-08-08 03:50 +0200
                Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic  transfers Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-08 11:10 +0200
  Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic  transfers Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-07 13:00 +0200
    Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic transfers Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2015-08-07 14:40 +0200
      Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic  transfers Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-07 15:20 +0200
        Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic  transfers Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-08-07 15:30 +0200
          Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic transfers Peter Hurley <peter@hurleysoftware.com> - 2015-08-07 16:50 +0200
        Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic transfers Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2015-08-07 15:30 +0200
  Re: [PATCH] dma: omap-dma: add support for pause of non-cyclic  transfers Greg KH <greg@kroah.com> - 2015-08-07 20:00 +0200

csiph-web