Commit f7b87c9a authored by Peter Ujfalusi's avatar Peter Ujfalusi Committed by Wolfram Sang
Browse files

i2c: mxs: Use dma_request_chan() instead dma_request_slave_channel() 



dma_request_slave_channel() is a wrapper on top of dma_request_chan()
eating up the error code.

By using dma_request_chan() directly the driver can support deferred
probing against DMA.

Signed-off-by: default avatarPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent 3e566bee

drivers/i2c/busses/i2c-mxs.c

+3 −3
Original line number Diff line number Diff line
@@ -836,10 +836,10 @@ static int mxs_i2c_probe(struct platform_device *pdev) 
	}



	/* Setup the DMA */

	i2c->dmach = dma_request_slave_channel(dev, "rx-tx");

	if (!i2c->dmach) {

	i2c->dmach = dma_request_chan(dev, "rx-tx");

	if (IS_ERR(i2c->dmach)) {

		dev_err(dev, "Failed to request dma\n");

		return -ENODEV;

		return PTR_ERR(i2c->dmach);

	}



	platform_set_drvdata(pdev, i2c);