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 :-)
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 ?
--
balbi
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