[PATCH] usb: Use of_property_present() for testing DT property presence

[Rob Herring]

It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties. As
part of this, convert of_get_property/of_find_property calls to the
recently added of_property_present() helper when we just want to test
for presence of a property and nothing more.

Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
---
 drivers/usb/gadget/udc/snps_udc_plat.c | 2 +-
 drivers/usb/host/fsl-mph-dr-of.c       | 4 ++--
 drivers/usb/musb/omap2430.c            | 2 +-
 drivers/usb/phy/phy-mxs-usb.c          | 2 +-
 drivers/usb/phy/phy-tegra-usb.c        | 2 +-
 5 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/gadget/udc/snps_udc_plat.c b/drivers/usb/gadget/udc/snps_udc_plat.c
index 8bbb89c80348..0d3e705655b9 100644
--- a/drivers/usb/gadget/udc/snps_udc_plat.c
+++ b/drivers/usb/gadget/udc/snps_udc_plat.c
@@ -158,7 +158,7 @@ static int udc_plat_probe(struct platform_device *pdev)
 	}
 
 	/* Register for extcon if supported */
-	if (of_get_property(dev->of_node, "extcon", NULL)) {
+	if (of_property_present(dev->of_node, "extcon")) {
 		udc->edev = extcon_get_edev_by_phandle(dev, 0);
 		if (IS_ERR(udc->edev)) {
 			if (PTR_ERR(udc->edev) == -EPROBE_DEFER)
diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c
index 46c6a152b865..cdf71b716c2b 100644
--- a/drivers/usb/host/fsl-mph-dr-of.c
+++ b/drivers/usb/host/fsl-mph-dr-of.c
@@ -200,10 +200,10 @@ static int fsl_usb2_mph_dr_of_probe(struct platform_device *ofdev)
 	dev_data = get_dr_mode_data(np);
 
 	if (of_device_is_compatible(np, "fsl-usb2-mph")) {
-		if (of_get_property(np, "port0", NULL))
+		if (of_property_present(np, "port0"))
 			pdata->port_enables |= FSL_USB2_PORT0_ENABLED;
 
-		if (of_get_property(np, "port1", NULL))
+		if (of_property_present(np, "port1"))
 			pdata->port_enables |= FSL_USB2_PORT1_ENABLED;
 
 		pdata->operating_mode = FSL_USB2_MPH_HOST;
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 44a21ec865fb..7f305b352591 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -334,7 +334,7 @@ static int omap2430_probe(struct platform_device *pdev)
 	 * Legacy SoCs using omap_device get confused if node is moved
 	 * because of interconnect properties mixed into the node.
 	 */
-	if (of_get_property(np, "ti,hwmods", NULL)) {
+	if (of_property_present(np, "ti,hwmods")) {
 		dev_warn(&pdev->dev, "please update to probe with ti-sysc\n");
 		populate_irqs = true;
 	} else {
diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c
index d2836ef5d15c..0a8e3fd699ca 100644
--- a/drivers/usb/phy/phy-mxs-usb.c
+++ b/drivers/usb/phy/phy-mxs-usb.c
@@ -733,7 +733,7 @@ static int mxs_phy_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	/* Some SoCs don't have anatop registers */
-	if (of_get_property(np, "fsl,anatop", NULL)) {
+	if (of_property_present(np, "fsl,anatop")) {
 		mxs_phy->regmap_anatop = syscon_regmap_lookup_by_phandle
 			(np, "fsl,anatop");
 		if (IS_ERR(mxs_phy->regmap_anatop)) {
diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
index f0240107edb1..4d207ce3ddf2 100644
--- a/drivers/usb/phy/phy-tegra-usb.c
+++ b/drivers/usb/phy/phy-tegra-usb.c
@@ -1375,7 +1375,7 @@ static int tegra_usb_phy_probe(struct platform_device *pdev)
 	tegra_phy->is_legacy_phy =
 		of_property_read_bool(np, "nvidia,has-legacy-mode");
 
-	if (of_find_property(np, "dr_mode", NULL))
+	if (of_property_present(np, "dr_mode"))
 		tegra_phy->mode = usb_get_dr_mode(&pdev->dev);
 	else
 		tegra_phy->mode = USB_DR_MODE_HOST;
-- 
2.39.2