dpaa_eth: defer probing after qbman (5537b329) · Commits · 戴 / test

If the DPAA 1 Ethernet driver gets probed before the QBMan driver it will cause a boot crash. Add predictability in the probing order by deferring the Ethernet driver probe after QBMan and portals by using the recently introduced QBMan APIs. Signed-off-by:

Laurentiu Tudor <laurentiu.tudor@nxp.com> Signed-off-by:

Madalin Bucur <madalin.bucur@nxp.com> Signed-off-by:

David S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/dpaa/dpaa_eth.c

+31 −0

Original line number	Diff line number	Diff line
		@@ -2773,6 +2773,37 @@ static int dpaa_eth_probe(struct platform_device *pdev)
		int err = 0, i, channel;
		struct device *dev;

		err = bman_is_probed();
		if (!err)
		return -EPROBE_DEFER;
		if (err < 0) {
		dev_err(&pdev->dev, "failing probe due to bman probe error\n");
		return -ENODEV;
		}
		err = qman_is_probed();
		if (!err)
		return -EPROBE_DEFER;
		if (err < 0) {
		dev_err(&pdev->dev, "failing probe due to qman probe error\n");
		return -ENODEV;
		}
		err = bman_portals_probed();
		if (!err)
		return -EPROBE_DEFER;
		if (err < 0) {
		dev_err(&pdev->dev,
		"failing probe due to bman portals probe error\n");
		return -ENODEV;
		}
		err = qman_portals_probed();
		if (!err)
		return -EPROBE_DEFER;
		if (err < 0) {
		dev_err(&pdev->dev,
		"failing probe due to qman portals probe error\n");
		return -ENODEV;
		}

		/* device used for DMA mapping */
		dev = pdev->dev.parent;
		err = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(40));

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