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: NWang Ming <machel@vivo.com> Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
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