linux-kernel - [PATCH v3 1/2] mmc: omap_hsmmc: convert to dma_request_slave_channel

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Date:	Wed,  6 Mar 2013 09:12:07 -0500
From:	Matt Porter <mporter@...com>
To:	Balaji T K <balajitk@...com>, Chris Ball <cjb@...top.org>,
	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>
Cc:	Vinod Koul <vinod.koul@...el.com>,
	Tony Lindgren <tony@...mide.com>,
	Devicetree Discuss <devicetree-discuss@...ts.ozlabs.org>,
	Linux OMAP List <linux-omap@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux MMC List <linux-mmc@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>, Dan Williams <djbw@...com>,
	Jon Hunter <jon-hunter@...com>,
	Santosh Shilimkar <santosh.shilimkar@...com>
Subject: [PATCH v3 1/2] mmc: omap_hsmmc: convert to dma_request_slave_channel_compat()

Convert dmaengine channel requests to use
dma_request_slave_channel_compat(). This supports platforms booting
with or without DT populated.

Signed-off-by: Matt Porter <mporter@...com>
Acked-by: Tony Lindgren <tony@...mide.com>
Acked-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/mmc/host/omap_hsmmc.c |   10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index bc58078..e79b12d 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1915,14 +1915,20 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_SLAVE, mask);
 
-	host->rx_chan = dma_request_channel(mask, omap_dma_filter_fn, &rx_req);
+	host->rx_chan =
+		dma_request_slave_channel_compat(mask, omap_dma_filter_fn,
+						 &rx_req, &pdev->dev, "rx");
+
 	if (!host->rx_chan) {
 		dev_err(mmc_dev(host->mmc), "unable to obtain RX DMA engine channel %u\n", rx_req);
 		ret = -ENXIO;
 		goto err_irq;
 	}
 
-	host->tx_chan = dma_request_channel(mask, omap_dma_filter_fn, &tx_req);
+	host->tx_chan =
+		dma_request_slave_channel_compat(mask, omap_dma_filter_fn,
+						 &tx_req, &pdev->dev, "tx");
+
 	if (!host->tx_chan) {
 		dev_err(mmc_dev(host->mmc), "unable to obtain TX DMA engine channel %u\n", tx_req);
 		ret = -ENXIO;
-- 
1.7.9.5

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