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Subject[PATCH] ARM: imx: use of_root to simplify code
Date
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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