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Groups > linux.kernel > #1375576
| From | John Ogness <john.ogness@linutronix.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] tty: serial: 8250_omap: do not defer termios changes |
| Date | 2016-04-11 10:20 +0200 |
| Message-ID | <rmFeG-2HC-19@gated-at.bofh.it> (permalink) |
| References | <riGsH-2h8-37@gated-at.bofh.it> <rkqts-5H7-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 2016-04-05, Peter Hurley <peter@hurleysoftware.com> wrote:
> On 03/31/2016 01:41 AM, John Ogness wrote:
>> It has been observed that the TX-DMA can stall
>
> Does this happen on any other OMAP part besides am335x?
> I looked back over the LKML history of this and didn't see
> any other design implicated in this problem.
I just ran the tests again using 4.6-rc2. I am able to reproduce the
dma-tx stall with am335x/edma and dra7/sdma.
Note: To achieve the stall, both the delayed_restore and the
rx_dma_broken features of the mainline 8250_omap driver needed to
be removed.
John Ogness
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Re: [PATCH] tty: serial: 8250_omap: do not defer termios changes Peter Hurley <peter@hurleysoftware.com> - 2016-04-05 06:10 +0200
Re: [PATCH] tty: serial: 8250_omap: do not defer termios changes John Ogness <john.ogness@linutronix.de> - 2016-04-11 10:20 +0200
Re: [PATCH] tty: serial: 8250_omap: do not defer termios changes Peter Hurley <peter@hurleysoftware.com> - 2016-04-11 20:00 +0200
Re: [PATCH] tty: serial: 8250_omap: do not defer termios changes Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2016-04-11 20:40 +0200
Re: [PATCH] tty: serial: 8250_omap: do not defer termios changes Peter Hurley <peter@hurleysoftware.com> - 2016-04-11 22:20 +0200
Re: [PATCH] tty: serial: 8250_omap: do not defer termios changes Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2016-04-12 19:10 +0200
Re: [PATCH] tty: serial: 8250_omap: do not defer termios changes Peter Hurley <peter@hurleysoftware.com> - 2016-04-12 20:50 +0200
Re: [PATCH] tty: serial: 8250_omap: do not defer termios changes Peter Hurley <peter@hurleysoftware.com> - 2016-04-14 18:10 +0200
8250 dma issues ( was Re: [PATCH] tty: serial: 8250_omap: do not defer termios changes) Peter Hurley <peter@hurleysoftware.com> - 2016-04-13 01:30 +0200
Re: 8250 dma issues ( was Re: [PATCH] tty: serial: 8250_omap: do not defer termios changes) One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-04-14 17:10 +0200
Re: 8250 dma issues ( was Re: [PATCH] tty: serial: 8250_omap: do not defer termios changes) Peter Hurley <peter@hurleysoftware.com> - 2016-04-14 20:00 +0200
omap uart + dma issues (Re: [PATCH] tty: serial: 8250_omap: do not defer termios changes) Peter Hurley <peter@hurleysoftware.com> - 2016-04-13 02:10 +0200
Re: omap uart + dma issues (Re: [PATCH] tty: serial: 8250_omap: do not defer termios changes) Sekhar Nori <nsekhar@ti.com> - 2016-04-13 13:20 +0200
Re: omap uart + dma issues (Re: [PATCH] tty: serial: 8250_omap: do not defer termios changes) Peter Hurley <peter@hurleysoftware.com> - 2016-04-14 03:20 +0200
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