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From:   Anson.Huang@nxp.com
To:     shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de,
        festevam@gmail.com, leonard.crestez@nxp.com,
        viresh.kumar@linaro.org, abel.vesa@nxp.com,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Cc:     Linux-imx@nxp.com
Subject: [PATCH V2 2/2] soc: imx8: Use existing of_root directly
Date:   Fri, 14 Jun 2019 16:07:48 +0800
Message-Id: <20190614080748.32997-2-Anson.Huang@nxp.com>
In-Reply-To: <20190614080748.32997-1-Anson.Huang@nxp.com>
References: <20190614080748.32997-1-Anson.Huang@nxp.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: Anson Huang <Anson.Huang@nxp.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@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
---
No changes.
---
 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 5c7f330..b459bf2 100644
--- a/drivers/soc/imx/soc-imx8.c
+++ b/drivers/soc/imx/soc-imx8.c
@@ -105,7 +105,6 @@ 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;
@@ -117,12 +116,11 @@ 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;
@@ -147,8 +145,6 @@ static int __init imx8_soc_init(void)
 		goto free_rev;
 	}
 
-	of_node_put(root);
-
 	if (IS_ENABLED(CONFIG_ARM_IMX_CPUFREQ_DT))
 		platform_device_register_simple("imx-cpufreq-dt", -1, NULL, 0);
 
@@ -159,7 +155,6 @@ 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