i2c: tegra: Use dma_request_chan() directly for channel request

dma_request_slave_channel_reason() is:
#define dma_request_slave_channel_reason(dev, name) \
	dma_request_chan(dev, name)
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: NJon Hunter <jonathanh@nvidia.com>
Reviewed-by: NVinod Koul <vkoul@kernel.org>
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-tegra.c

@@ -413,7 +413,7 @@ static int tegra_i2c_init_dma(struct tegra_i2c_dev *i2c_dev)
 		return 0;
 	}
 
-	chan = dma_request_slave_channel_reason(i2c_dev->dev, "rx");
+	chan = dma_request_chan(i2c_dev->dev, "rx");
 	if (IS_ERR(chan)) {
 		err = PTR_ERR(chan);
 		goto err_out;
@@ -421,7 +421,7 @@ static int tegra_i2c_init_dma(struct tegra_i2c_dev *i2c_dev)
 
 	i2c_dev->rx_dma_chan = chan;
 
-	chan = dma_request_slave_channel_reason(i2c_dev->dev, "tx");
+	chan = dma_request_chan(i2c_dev->dev, "tx");
 	if (IS_ERR(chan)) {
 		err = PTR_ERR(chan);
 		goto err_out;