From: Peng Fan <peng.fan@nxp.com>
To: "shawnguo@kernel.org" <shawnguo@kernel.org>,
"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
"festevam@gmail.com" <festevam@gmail.com>
Cc: "cniedermaier@dh-electronics.com"
<cniedermaier@dh-electronics.com>, Peng Fan <peng.fan@nxp.com>,
Anson Huang <anson.huang@nxp.com>, Alice Guo <alice.guo@nxp.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
dl-linux-imx <linux-imx@nxp.com>,
Leonard Crestez <leonard.crestez@nxp.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: [PATCH] ARM: imx: use of_root to simplify code
Date: Mon, 30 Dec 2019 09:03:51 +0000 [thread overview]
Message-ID: <1577696316-27635-1-git-send-email-peng.fan@nxp.com> (raw)
From: Peng Fan <peng.fan@nxp.com>
start_kernel
|->setup_arch
| |->unflatten_device_tree->of_root ready
|
|->do_initcalls
|->customize_machine
|->init_machine
|->imx_soc_device_init
When imx_soc_device_init, of_root is ready, so we could directly use it.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
V1:
Tested on i.MX7D-SDB
arch/arm/mach-imx/cpu.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c
index 06f8d64b65af..77319b359070 100644
--- a/arch/arm/mach-imx/cpu.c
+++ b/arch/arm/mach-imx/cpu.c
@@ -88,7 +88,6 @@ struct device * __init imx_soc_device_init(void)
struct soc_device_attribute *soc_dev_attr;
const char *ocotp_compat = NULL;
struct soc_device *soc_dev;
- struct device_node *root;
struct regmap *ocotp = NULL;
const char *soc_id;
u64 soc_uid = 0;
@@ -101,9 +100,7 @@ struct device * __init imx_soc_device_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);
- of_node_put(root);
+ ret = of_property_read_string(of_root, "model", &soc_dev_attr->machine);
if (ret)
goto free_soc;
--
2.16.4
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WARNING: multiple messages have this Message-ID (diff)
From: Peng Fan <peng.fan@nxp.com>
To: "shawnguo@kernel.org" <shawnguo@kernel.org>,
"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
"festevam@gmail.com" <festevam@gmail.com>
Cc: dl-linux-imx <linux-imx@nxp.com>,
Anson Huang <anson.huang@nxp.com>,
Leonard Crestez <leonard.crestez@nxp.com>,
"cniedermaier@dh-electronics.com"
<cniedermaier@dh-electronics.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Alice Guo <alice.guo@nxp.com>, Peng Fan <peng.fan@nxp.com>
Subject: [PATCH] ARM: imx: use of_root to simplify code
Date: Mon, 30 Dec 2019 09:03:51 +0000 [thread overview]
Message-ID: <1577696316-27635-1-git-send-email-peng.fan@nxp.com> (raw)
From: Peng Fan <peng.fan@nxp.com>
start_kernel
|->setup_arch
| |->unflatten_device_tree->of_root ready
|
|->do_initcalls
|->customize_machine
|->init_machine
|->imx_soc_device_init
When imx_soc_device_init, of_root is ready, so we could directly use it.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
V1:
Tested on i.MX7D-SDB
arch/arm/mach-imx/cpu.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c
index 06f8d64b65af..77319b359070 100644
--- a/arch/arm/mach-imx/cpu.c
+++ b/arch/arm/mach-imx/cpu.c
@@ -88,7 +88,6 @@ struct device * __init imx_soc_device_init(void)
struct soc_device_attribute *soc_dev_attr;
const char *ocotp_compat = NULL;
struct soc_device *soc_dev;
- struct device_node *root;
struct regmap *ocotp = NULL;
const char *soc_id;
u64 soc_uid = 0;
@@ -101,9 +100,7 @@ struct device * __init imx_soc_device_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);
- of_node_put(root);
+ ret = of_property_read_string(of_root, "model", &soc_dev_attr->machine);
if (ret)
goto free_soc;
--
2.16.4
next reply other threads:[~2019-12-30 9:04 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-30 9:03 Peng Fan [this message]
2019-12-30 9:03 ` [PATCH] ARM: imx: use of_root to simplify code Peng Fan
2020-01-09 8:16 ` Shawn Guo
2020-01-09 8:16 ` Shawn Guo
2020-01-09 8:20 ` Peng Fan
2020-01-09 8:20 ` Peng Fan
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