soc: fsl: bman_portals: defer probe after bman's probe

A crash in bman portal probing could not be triggered (as is the case
with qman portals) but it does make calls [1] into the bman driver so
lets make sure the bman portal probing happens after bman's.

[1]  bman_p_irqsource_add() (in bman) called by:
       init_pcfg() called by:
         bman_portal_probe()

Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/soc/fsl/qbman/bman_portal.c b/drivers/soc/fsl/qbman/bman_portal.c
index 088cdfa7c034..2c95cf59f3e7 100644
--- a/drivers/soc/fsl/qbman/bman_portal.c
+++ b/drivers/soc/fsl/qbman/bman_portal.c
@@ -93,7 +93,15 @@ static int bman_portal_probe(struct platform_device *pdev)
         struct device_node *node = dev->of_node;
         struct bm_portal_config *pcfg;
         struct resource *addr_phys[2];
-        int irq, cpu;
+        int irq, cpu, err;
+
+        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;
+        }
 
         pcfg = devm_kmalloc(dev, sizeof(*pcfg), GFP_KERNEL);
         if (!pcfg)