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| author |   Robert Jarzmik <robert.jarzmik@free.fr> | 2015-09-10 21:26:04 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-09-17 13:36:52 -0700 |
| commit | d24c8f24ea897ae89738b865a41b0a5d70137c46 (patch) | |
| tree | 9b84c7f5942a6a0e77da22bf43a4a7d0300a3bc2 /drivers/net/ethernet/smsc/smc91x.c | |
| parent | net: fix cdc-phonet.c dependency and build error (diff) | |
| download | linux-dev-d24c8f24ea897ae89738b865a41b0a5d70137c46.tar.xz linux-dev-d24c8f24ea897ae89738b865a41b0a5d70137c46.zip | |
net: smc91x: convert pxa dma to dmaengine
Convert the dma transfers to be dmaengine based, now pxa has a dmaengine
slave driver. This makes this driver a bit more PXA agnostic.
The driver was tested on pxa27x (mainstone) and pxa310 (zylonite),
ie. only pxa platforms.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/smsc/smc91x.c')
| -rw-r--r-- | drivers/net/ethernet/smsc/smc91x.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c index 630f0b7800e4..0e2fc1a844ab 100644 --- a/drivers/net/ethernet/smsc/smc91x.c +++ b/drivers/net/ethernet/smsc/smc91x.c @@ -2018,10 +2018,18 @@ static int smc_probe(struct net_device *dev, void __iomem *ioaddr, lp->cfg.flags |= SMC91X_USE_DMA; # endif if (lp->cfg.flags & SMC91X_USE_DMA) { - int dma = pxa_request_dma(dev->name, DMA_PRIO_LOW, - smc_pxa_dma_irq, NULL); - if (dma >= 0) - dev->dma = dma; + dma_cap_mask_t mask; + struct pxad_param param; + + dma_cap_zero(mask); + dma_cap_set(DMA_SLAVE, mask); + param.prio = PXAD_PRIO_LOWEST; + param.drcmr = -1UL; + + lp->dma_chan = + dma_request_slave_channel_compat(mask, pxad_filter_fn, + ¶m, &dev->dev, + "data"); } #endif @@ -2032,8 +2040,8 @@ static int smc_probe(struct net_device *dev, void __iomem *ioaddr, version_string, revision_register & 0x0f, lp->base, dev->irq); - if (dev->dma != (unsigned char)-1) - pr_cont(" DMA %d", dev->dma); + if (lp->dma_chan) + pr_cont(" DMA %p", lp->dma_chan); pr_cont("%s%s\n", lp->cfg.flags & SMC91X_NOWAIT ? " [nowait]" : "", @@ -2058,8 +2066,8 @@ static int smc_probe(struct net_device *dev, void __iomem *ioaddr, err_out: #ifdef CONFIG_ARCH_PXA - if (retval && dev->dma != (unsigned char)-1) - pxa_free_dma(dev->dma); + if (retval && lp->dma_chan) + dma_release_channel(lp->dma_chan); #endif return retval; } @@ -2370,6 +2378,7 @@ static int smc_drv_probe(struct platform_device *pdev) struct smc_local *lp = netdev_priv(ndev); lp->device = &pdev->dev; lp->physaddr = res->start; + } #endif @@ -2406,8 +2415,8 @@ static int smc_drv_remove(struct platform_device *pdev) free_irq(ndev->irq, ndev); #ifdef CONFIG_ARCH_PXA - if (ndev->dma != (unsigned char)-1) - pxa_free_dma(ndev->dma); + if (lp->dma_chan) + dma_release_channel(lp->dma_chan); #endif iounmap(lp->base); |