Commit 55354ee7 authored by Wang Ming's avatar Wang Ming Committed by Laurent Pinchart
Browse files

drm: xlnx: zynqmp_dpsub: Use dev_err_probe instead of dev_err 



It is possible that dma_request_chan() returns EPROBE_DEFER, in which
case the driver defers probing without printing any message. Use
dev_err_probe() to record the probe deferral cause and ease debugging.

Signed-off-by: default avatarWang Ming <machel@vivo.com>
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
parent 1832fba7

drivers/gpu/drm/xlnx/zynqmp_disp.c

+2 −2
Original line number Diff line number Diff line
@@ -1094,8 +1094,8 @@ static int zynqmp_disp_layer_request_dma(struct zynqmp_disp *disp, 
			 "%s%u", dma_names[layer->id], i);

		dma->chan = dma_request_chan(disp->dev, dma_channel_name);

		if (IS_ERR(dma->chan)) {

			dev_err(disp->dev, "failed to request dma channel\n");

			ret = PTR_ERR(dma->chan);

			ret = dev_err_probe(disp->dev, PTR_ERR(dma->chan),

					    "failed to request dma channel\n");

			dma->chan = NULL;

			return ret;

		}