misc: atmel_tclib: Do not probe already used TCBs

The TCBs that have children are using the proper DT bindings and don't need
to be handled by tclib.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/misc/atmel_tclib.c b/drivers/misc/atmel_tclib.c
index 194f774ab3a1..2c6850ef0e9c 100644
--- a/drivers/misc/atmel_tclib.c
+++ b/drivers/misc/atmel_tclib.c
@@ -111,6 +111,9 @@ static int __init tc_probe(struct platform_device *pdev)
         struct resource *r;
         unsigned int    i;
 
+        if (of_get_child_count(pdev->dev.of_node))
+                return -EBUSY;
+
         irq = platform_get_irq(pdev, 0);
         if (irq < 0)
                 return -EINVAL;