diff options
| author | Balaji T K <balajitk@ti.com> | 2012-03-07 18:55:30 +0400 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2012-03-27 20:19:59 +0400 |
| commit | b7bf773b0eaac633276a8c3b2867db4d8b64c04a (patch) | |
| tree | 4ec8fcebe74616c86aaf6219441969e8b6c50310 /drivers | |
| parent | f0cc9cf99326926fd76f77645c48d16d647802eb (diff) | |
| download | linux-b7bf773b0eaac633276a8c3b2867db4d8b64c04a.tar.xz | |
mmc: omap_hsmmc: use platform_get_resource_byname for tx/rx DMA channels
Git rid of hardcoded tx/rx DMA channels based on pdev->id
and use platform_get_resource_byname() to retrieve them
instead.
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Tested-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/omap_hsmmc.c | 35 |
1 files changed, 11 insertions, 24 deletions
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 36e7f5bc58a3..a6f19f17f0d8 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -1981,32 +1981,19 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev) omap_hsmmc_conf_bus_power(host); - /* Select DMA lines */ - switch (host->id) { - case OMAP_MMC1_DEVID: - host->dma_line_tx = OMAP24XX_DMA_MMC1_TX; - host->dma_line_rx = OMAP24XX_DMA_MMC1_RX; - break; - case OMAP_MMC2_DEVID: - host->dma_line_tx = OMAP24XX_DMA_MMC2_TX; - host->dma_line_rx = OMAP24XX_DMA_MMC2_RX; - break; - case OMAP_MMC3_DEVID: - host->dma_line_tx = OMAP34XX_DMA_MMC3_TX; - host->dma_line_rx = OMAP34XX_DMA_MMC3_RX; - break; - case OMAP_MMC4_DEVID: - host->dma_line_tx = OMAP44XX_DMA_MMC4_TX; - host->dma_line_rx = OMAP44XX_DMA_MMC4_RX; - break; - case OMAP_MMC5_DEVID: - host->dma_line_tx = OMAP44XX_DMA_MMC5_TX; - host->dma_line_rx = OMAP44XX_DMA_MMC5_RX; - break; - default: - dev_err(mmc_dev(host->mmc), "Invalid MMC id\n"); + res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx"); + if (!res) { + dev_err(mmc_dev(host->mmc), "cannot get DMA TX channel\n"); + goto err_irq; + } + host->dma_line_tx = res->start; + + res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx"); + if (!res) { + dev_err(mmc_dev(host->mmc), "cannot get DMA RX channel\n"); goto err_irq; } + host->dma_line_rx = res->start; /* Request IRQ for MMC operations */ ret = request_irq(host->irq, omap_hsmmc_irq, 0, |