linux-kernel - [PATCH 3/3] USB: musb: dsps: propagate device-tree node

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Date:   Fri, 13 Apr 2018 17:15:05 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Bin Liu <b-liu@...com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Arnd Bergmann <arnd@...db.de>,
        Kishon Vijay Abraham I <kishon@...com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        Johan Hovold <johan@...nel.org>
Subject: [PATCH 3/3] USB: musb: dsps: propagate device-tree node

To be able to use DSPS-based controllers with device-tree descriptions
of the USB topology, we need to associate the glue device's device-tree
node with the child controller device.

Note that this can also be used to eventually let USB core manage
generic phys.

Also note that the other glue drivers will require similar changes to be
able to describe their buses in DT.

Signed-off-by: Johan Hovold <johan@...nel.org>
---
 drivers/usb/musb/musb_dsps.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 6a60bc0490c5..23dba59045a7 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -786,6 +786,7 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue,
 	musb->dev.parent		= dev;
 	musb->dev.dma_mask		= &musb_dmamask;
 	musb->dev.coherent_dma_mask	= musb_dmamask;
+	device_set_of_node_from_dev(&musb->dev, &parent->dev);
 
 	glue->musb = musb;
 
-- 
2.17.0