RE: OMAP baseline test results for v3.7-rc3

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Oct 31, 2012 at 00:21:02, Balbi, Felipe wrote:
> Hi,
> 
> On Tue, Oct 30, 2012 at 10:58:59AM -0700, Tony Lindgren wrote:
> > * Felipe Balbi <balbi@xxxxxx> [121030 10:34]:
> > > Hi,
> > > 
> > > On Tue, Oct 30, 2012 at 09:27:28AM -0700, Tony Lindgren wrote:
> > > > * Vaibhav Hiremath <hvaibhav@xxxxxx> [121030 07:50]:
> > > > > > 
> > > > > > MMC is dependent on EDMA-DMA conversion patches from Matt, which he has 
> > > > > > already submitted to the list recently. So MMC support will come along with
> > > > > > EDMA support. DMA-EDMA patches are targeted for v3.8, lets see how it goes.
> > > > 
> > > > This is a bogus dependency, the MMC driver needs to also work
> > > > without DMA.
> > > 
> > > heh, too bad driver errors out when it doesn't find DMA channels :-)
> > 
> > It should just print a warning instead and continue.
> >  
> > > 1869         host->rx_chan = dma_request_channel(mask, omap_dma_filter_fn, &rx_req);
> > > 1870         if (!host->rx_chan) {
> > > 1871                 dev_err(mmc_dev(host->mmc), "unable to obtain RX DMA engine channel %u\n", rx_req);
> > > 1872                 ret = -ENXIO;
> > > 1873                 goto err_irq;
> > > 1874         }
> > > 1875 
> > > 1876         host->tx_chan = dma_request_channel(mask, omap_dma_filter_fn, &tx_req);
> > > 1877         if (!host->tx_chan) {
> > > 1878                 dev_err(mmc_dev(host->mmc), "unable to obtain TX DMA engine channel %u\n", tx_req);
> > > 1879                 ret = -ENXIO;
> > > 1880                 goto err_irq;
> > > 1881         }
> > > 
> > > in fact, if DMAENGINE isn't enabled, this won't even compile due to
> > > omap_dma_filter_fn() right ?
> > 
> > It should, CONFIG_DMADEVICES is optional. If it does not compile,
> > then there's a bug somewhere.
> 
> you're right, there's a static inline nop for when we don't have omap
> dma engine driver compiled.
> 
> nevermind.
> 

Did anybody tried polling mode MMC support on OMAP devices in the past?

Thanks,
Vaibhav

> -- 
> balbi
> 

--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Arm (vger)]     [ARM Kernel]     [ARM MSM]     [Linux Tegra]     [Linux WPAN Networking]     [Linux Wireless Networking]     [Maemo Users]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux