From fb185a4052b18c97ebc98f6a8db30a60abca35e0 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Tue, 17 Dec 2019 09:37:30 +0200 Subject: powerpc/512x: 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: Peter Ujfalusi Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20191217073730.21249-1-peter.ujfalusi@ti.com --- arch/powerpc/platforms/512x/mpc512x_lpbfifo.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/powerpc/platforms/512x') diff --git a/arch/powerpc/platforms/512x/mpc512x_lpbfifo.c b/arch/powerpc/platforms/512x/mpc512x_lpbfifo.c index 13631f35cd14..04bf6ecf7d55 100644 --- a/arch/powerpc/platforms/512x/mpc512x_lpbfifo.c +++ b/arch/powerpc/platforms/512x/mpc512x_lpbfifo.c @@ -434,9 +434,9 @@ static int mpc512x_lpbfifo_probe(struct platform_device *pdev) memset(&lpbfifo, 0, sizeof(struct lpbfifo_data)); spin_lock_init(&lpbfifo.lock); - lpbfifo.chan = dma_request_slave_channel(&pdev->dev, "rx-tx"); - if (lpbfifo.chan == NULL) - return -EPROBE_DEFER; + lpbfifo.chan = dma_request_chan(&pdev->dev, "rx-tx"); + if (IS_ERR(lpbfifo.chan)) + return PTR_ERR(lpbfifo.chan); if (of_address_to_resource(pdev->dev.of_node, 0, &r) != 0) { dev_err(&pdev->dev, "bad 'reg' in 'sclpc' device tree node\n"); -- cgit v1.2.3-59-g8ed1b