linux-kernel - [PATCH] usb: chipidea: removing of_find

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Message-Id: <1447758475-10252-1-git-send-email-saurabh.truth@gmail.com>
Date:	Tue, 17 Nov 2015 16:37:55 +0530
From:	Saurabh Sengar <saurabh.truth@...il.com>
To:	Peter.Chen@...escale.com, gregkh@...uxfoundation.org,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	Saurabh Sengar <saurabh.truth@...il.com>
Subject: [PATCH] usb: chipidea: removing of_find_property

call to of_find_property() before of_property_read_u32() is unnecessary.
of_property_read_u32() anyway calls to of_find_property() only.

Signed-off-by: Saurabh Sengar <saurabh.truth@...il.com>
---
 drivers/usb/chipidea/core.c | 67 ++++++++++++++++++++++-----------------------
 1 file changed, 32 insertions(+), 35 deletions(-)

diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 965d0e2..8a4c22c 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -643,6 +643,7 @@ static int ci_get_platdata(struct device *dev,
 	struct extcon_dev *ext_vbus, *ext_id;
 	struct ci_hdrc_cable *cable;
 	int ret;
+	u32 pval;
 
 	if (!platdata->phy_mode)
 		platdata->phy_mode = of_usb_get_phy_mode(dev->of_node);
@@ -688,52 +689,48 @@ static int ci_get_platdata(struct device *dev,
 	if (usb_get_maximum_speed(dev) == USB_SPEED_FULL)
 		platdata->flags |= CI_HDRC_FORCE_FULLSPEED;
 
-	if (of_find_property(dev->of_node, "phy-clkgate-delay-us", NULL))
-		of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
-				     &platdata->phy_clkgate_delay_us);
+	if (!of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
+				     &pval))
+		platdata->phy_clkgate_delay_us = pval;
 
 	platdata->itc_setting = 1;
-	if (of_find_property(dev->of_node, "itc-setting", NULL)) {
-		ret = of_property_read_u32(dev->of_node, "itc-setting",
-			&platdata->itc_setting);
-		if (ret) {
-			dev_err(dev,
-				"failed to get itc-setting\n");
-			return ret;
-		}
+
+	ret = of_property_read_u32(dev->of_node, "itc-setting", &pval);
+	if (!ret)
+		platdata->itc_setting = pval;
+	else if (ret != -EINVAL) {
+		dev_err(dev, "failed to get itc-setting\n");
+		return ret;
 	}
 
-	if (of_find_property(dev->of_node, "ahb-burst-config", NULL)) {
-		ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
-			&platdata->ahb_burst_config);
-		if (ret) {
-			dev_err(dev,
-				"failed to get ahb-burst-config\n");
-			return ret;
-		}
+	ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
+				&pval);
+	if (!ret) {
+		platdata->ahb_burst_config = pval;
 		platdata->flags |= CI_HDRC_OVERRIDE_AHB_BURST;
+	} else if (ret != -EINVAL) {
+		dev_err(dev, "failed to get ahb-burst-config\n");
+		return ret;
 	}
 
-	if (of_find_property(dev->of_node, "tx-burst-size-dword", NULL)) {
-		ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
-			&platdata->tx_burst_size);
-		if (ret) {
-			dev_err(dev,
-				"failed to get tx-burst-size-dword\n");
-			return ret;
-		}
+	ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
+				&pval);
+	if (!ret) {
+		platdata->tx_burst_size = pval;
 		platdata->flags |= CI_HDRC_OVERRIDE_TX_BURST;
+	} else if (ret != -EINVAL) {
+		dev_err(dev, "failed to get tx-burst-size-dword\n");
+		return ret;
 	}
 
-	if (of_find_property(dev->of_node, "rx-burst-size-dword", NULL)) {
-		ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
-			&platdata->rx_burst_size);
-		if (ret) {
-			dev_err(dev,
-				"failed to get rx-burst-size-dword\n");
-			return ret;
-		}
+	ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
+				&pval);
+	if (!ret) {
+		platdata->rx_burst_size = pval;
 		platdata->flags |= CI_HDRC_OVERRIDE_RX_BURST;
+	} else if (ret != -EINVAL) {
+		dev_err(dev, "failed to get rx-burst-size-dword\n");
+		return ret;
 	}
 
 	ext_id = ERR_PTR(-ENODEV);
-- 
1.9.1

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