On Fri, Apr 20, 2012 at 09:50:00AM -0700, Tony Lindgren wrote:
> Then something like this is still needed on top of your original mmc driver
> patch for omap2420:
>
> --- a/drivers/mmc/host/omap.c
> +++ b/drivers/mmc/host/omap.c
> @@ -1617,11 +1617,14 @@ static int __init mmc_omap_probe(struct platform_device *pdev)
> host->dma_tx_burst = -1;
> host->dma_rx_burst = -1;
>
> - sig = host->id == 0 ? OMAP_DMA_MMC_TX : OMAP_DMA_MMC2_TX;
> + if (cpu_is_omap24xx())
> + sig = host->id == 0 ? OMAP24XX_DMA_MMC1_TX : OMAP24XX_DMA_MMC2_TX;
> + else
> + sig = host->id == 0 ? OMAP_DMA_MMC_TX : OMAP_DMA_MMC2_TX;
> host->dma_tx = dma_request_channel(mask, omap_dma_filter_fn, &sig);
> #if 0
> if (!host->dma_tx) {
> - def_err(host->dev, "unable to obtain TX DMA engine channel %u\n",
> + dev_err(host->dev, "unable to obtain TX DMA engine channel %u\n",
> sig);
> goto err_dma;
> }
> @@ -1632,7 +1635,10 @@ static int __init mmc_omap_probe(struct platform_device *pdev)
> #endif
> #endif
> #ifdef USE_DMA_ENGINE
> - sig = host->id == 0 ? OMAP_DMA_MMC_RX : OMAP_DMA_MMC2_RX;
> + if (cpu_is_omap24xx())
> + sig = host->id == 0 ? OMAP24XX_DMA_MMC1_RX : OMAP24XX_DMA_MMC2_RX;
> + else
> + sig = host->id == 0 ? OMAP_DMA_MMC_RX : OMAP_DMA_MMC2_RX;
> host->dma_rx = dma_request_channel(mask, omap_dma_filter_fn, &sig);
> #if 0
> if (!host->dma_rx) {
Is there any chance this DMA signal information could be moved into
platform resources, like omap_hsmmc has done? I could then get rid
of the plat/dma.h dependence from this driver.
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