[PATCH v2 6/9] usb: host: dwc3-sti-glue: Migrate to use ofnode API

[Kever Yang]

Use ofnode_ instead of fdt_ or fdtdec_ APIs so that the driver can support
live DT.

Signed-off-by: Kever Yang <kever.yang at rock-chips.com>
---

Changes in v2:
- fix build error for ofnode not define

 drivers/usb/host/dwc3-sti-glue.c | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

diff --git a/drivers/usb/host/dwc3-sti-glue.c b/drivers/usb/host/dwc3-sti-glue.c
index ad7cf6e6b5..ae9573ab8a 100644
--- a/drivers/usb/host/dwc3-sti-glue.c
+++ b/drivers/usb/host/dwc3-sti-glue.c
@@ -10,8 +10,6 @@
 #include <asm/io.h>
 #include <dm.h>
 #include <errno.h>
-#include <fdtdec.h>
-#include <linux/libfdt.h>
 #include <dm/lists.h>
 #include <regmap.h>
 #include <reset-uclass.h>
@@ -109,8 +107,7 @@ static int sti_dwc3_glue_ofdata_to_platdata(struct udevice *dev)
 	int ret;
 	u32 reg[4];
 
-	ret = fdtdec_get_int_array(gd->fdt_blob, dev_of_offset(dev),
-				   "reg", reg, ARRAY_SIZE(reg));
+	ret = ofnode_read_u32_array(dev->node, "reg", reg, ARRAY_SIZE(reg));
 	if (ret) {
 		pr_err("unable to find st,stih407-dwc3 reg property(%d)\n", ret);
 		return ret;
@@ -153,24 +150,21 @@ static int sti_dwc3_glue_ofdata_to_platdata(struct udevice *dev)
 static int sti_dwc3_glue_bind(struct udevice *dev)
 {
 	struct sti_dwc3_glue_platdata *plat = dev_get_platdata(dev);
-	int dwc3_node;
+	ofnode node, dwc3_node;
 
-	/* check if one subnode is present */
-	dwc3_node = fdt_first_subnode(gd->fdt_blob, dev_of_offset(dev));
-	if (dwc3_node <= 0) {
-		pr_err("Can't find subnode for %s\n", dev->name);
-		return -ENODEV;
+	/* Find snps,dwc3 node from subnode */
+	ofnode_for_each_subnode(node, dev->node) {
+		if (ofnode_device_is_compatible(node, "snps,dwc3"))
+			dwc3_node = node;
 	}
 
-	/* check if the subnode compatible string is the dwc3 one*/
-	if (fdt_node_check_compatible(gd->fdt_blob, dwc3_node,
-				      "snps,dwc3") != 0) {
+	if (!ofnode_valid(node)) {
 		pr_err("Can't find dwc3 subnode for %s\n", dev->name);
 		return -ENODEV;
 	}
 
 	/* retrieve the DWC3 dual role mode */
-	plat->mode = usb_get_dr_mode(dwc3_node);
+	plat->mode = usb_get_dr_mode(ofnode_to_offset(dwc3_node));
 	if (plat->mode == USB_DR_MODE_UNKNOWN)
 		/* by default set dual role mode to HOST */
 		plat->mode = USB_DR_MODE_HOST;
-- 
2.17.1