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Commit b7bf773b authored by Balaji T K's avatar Balaji T K Committed by Chris Ball
Browse files

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: default avatarBalaji T K <balajitk@ti.com>
Signed-off-by: default avatarRajendra Nayak <rnayak@ti.com>
Tested-by: default avatarVenkatraman S <svenkatr@ti.com>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent f0cc9cf9

drivers/mmc/host/omap_hsmmc.c

+11 −24
Original line number Diff line number Diff line
@@ -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,