Messages in this thread | | | Date | Mon, 29 Sep 2014 10:50:42 +0200 | From | Frans Klaver <> | Subject | Re: [PATCH 09/16] tty: serial: 8250_dma: Add a TX trigger workaround for AM33xx |
| |
On Thu, Sep 25, 2014 at 05:14:03PM +0200, Sebastian Andrzej Siewior wrote: > * Frans Klaver | 2014-09-22 11:28:54 [+0200]: > > >I guess then we'd still have to answer the question why the yocto build > >calls set_termios() so often, but that's not on you then. Did you notice > >it even changing settings? We might want to fix this even if the kernel > >should be able to cope. > > could you please test uart_v10_pre3? I dropped a few register sets and > delayed the register update until TX-DMA is complete. I am traveling > currently and have only my boneblack and it passes my limited testing. > If it solves your problems, too then I would address Heikki's latest > comments and prepare the final v10 (and I hope I didn't break beagle > board in between).
This version fixes the console things for us. It also increases the amount of data we can push over the serial port. If I push the data towards our requirements, we're not there yet. I get the "too much work for irq" notice still. However, I don't think you'd need to be fixing that in this series (or at all). We had similar issues there with omap-serial as well.
As far as I'm concerned, this is
Tested-by: Frans Klaver <frans.klaver@xsens.com>
Thanks, Frans
| |