Messages in this thread Patch in this message | | | From | Mans Rullgard <> | Subject | [PATCH] platform: set of_node in platform_device_register_full() | Date | Wed, 20 Feb 2019 11:35:06 +0000 |
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If the provided fwnode is an OF node, set dev.of_node as well.
Some drivers are just shims that create extra "glue" devices with the DT device as parent and have the real driver bind to these. In these cases, the glue device needs to get a reference to the original DT node in order for the main driver to access properties and child nodes.
For example, the sunxi-musb driver creates such a glue device using platform_device_register_full(). Consequently, devices attached to this USB interface don't get associated with DT nodes, if present, the way they do with EHCI.
This change will allow sunxi-musb and similar driver to easily propagate the DT node to child devices as required.
Signed-off-by: Mans Rullgard <mans@mansr.com> --- drivers/base/platform.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index dff82a3c2caa..853a1d0e5845 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -512,6 +512,7 @@ struct platform_device *platform_device_register_full( pdev->dev.parent = pdevinfo->parent; pdev->dev.fwnode = pdevinfo->fwnode; + pdev->dev.of_node = of_node_get(to_of_node(pdev->dev.fwnode)); if (pdevinfo->dma_mask) { /* -- 2.20.1
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