linux-kernel - [PATCH RESEND V2] soc: imx8: Use existing of

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Message-Id: <20190618094338.11183-1-Anson.Huang@nxp.com>
Date:   Tue, 18 Jun 2019 17:43:38 +0800
From:   Anson.Huang@....com
To:     shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com, leonard.crestez@....com, abel.vesa@....com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Linux-imx@....com
Subject: [PATCH RESEND V2] soc: imx8: Use existing of_root directly

From: Anson Huang <Anson.Huang@....com>

There is common of_root for reference, no need to find it
from DT again, use of_root directly to make driver simple.

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
 drivers/soc/imx/soc-imx8.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/soc/imx/soc-imx8.c b/drivers/soc/imx/soc-imx8.c
index ef2406f..34ab993 100644
--- a/drivers/soc/imx/soc-imx8.c
+++ b/drivers/soc/imx/soc-imx8.c
@@ -94,7 +94,6 @@ static int __init imx8_soc_init(void)
 {
 	struct soc_device_attribute *soc_dev_attr;
 	struct soc_device *soc_dev;
-	struct device_node *root;
 	const struct of_device_id *id;
 	u32 soc_rev = 0;
 	const struct imx8_soc_data *data;
@@ -106,12 +105,11 @@ static int __init imx8_soc_init(void)
 
 	soc_dev_attr->family = "Freescale i.MX";
 
-	root = of_find_node_by_path("/");
-	ret = of_property_read_string(root, "model", &soc_dev_attr->machine);
+	ret = of_property_read_string(of_root, "model", &soc_dev_attr->machine);
 	if (ret)
 		goto free_soc;
 
-	id = of_match_node(imx8_soc_match, root);
+	id = of_match_node(imx8_soc_match, of_root);
 	if (!id) {
 		ret = -ENODEV;
 		goto free_soc;
@@ -136,8 +134,6 @@ static int __init imx8_soc_init(void)
 		goto free_rev;
 	}
 
-	of_node_put(root);
-
 	return 0;
 
 free_rev:
@@ -145,7 +141,6 @@ static int __init imx8_soc_init(void)
 		kfree(soc_dev_attr->revision);
 free_soc:
 	kfree(soc_dev_attr);
-	of_node_put(root);
 	return ret;
 }
 device_initcall(imx8_soc_init);
-- 
2.7.4