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path: root/drivers/soc/bcm/brcmstb/common.c
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Diffstat (limited to 'drivers/soc/bcm/brcmstb/common.c')
-rw-r--r--drivers/soc/bcm/brcmstb/common.c43
1 files changed, 31 insertions, 12 deletions
diff --git a/drivers/soc/bcm/brcmstb/common.c b/drivers/soc/bcm/brcmstb/common.c
index a71730da6385..14185451901d 100644
--- a/drivers/soc/bcm/brcmstb/common.c
+++ b/drivers/soc/bcm/brcmstb/common.c
@@ -66,24 +66,47 @@ static const struct of_device_id sun_top_ctrl_match[] = {
{ }
};
-static int __init brcmstb_soc_device_init(void)
+static int __init brcmstb_soc_device_early_init(void)
{
- struct soc_device_attribute *soc_dev_attr;
- struct soc_device *soc_dev;
struct device_node *sun_top_ctrl;
void __iomem *sun_top_ctrl_base;
int ret = 0;
+ /* We could be on a multi-platform kernel, don't make this fatal but
+ * bail out early
+ */
sun_top_ctrl = of_find_matching_node(NULL, sun_top_ctrl_match);
if (!sun_top_ctrl)
- return -ENODEV;
+ return ret;
sun_top_ctrl_base = of_iomap(sun_top_ctrl, 0);
- if (!sun_top_ctrl_base)
- return -ENODEV;
+ if (!sun_top_ctrl_base) {
+ ret = -ENODEV;
+ goto out;
+ }
family_id = readl(sun_top_ctrl_base);
product_id = readl(sun_top_ctrl_base + 0x4);
+ iounmap(sun_top_ctrl_base);
+out:
+ of_node_put(sun_top_ctrl);
+ return ret;
+}
+early_initcall(brcmstb_soc_device_early_init);
+
+static int __init brcmstb_soc_device_init(void)
+{
+ struct soc_device_attribute *soc_dev_attr;
+ struct device_node *sun_top_ctrl;
+ struct soc_device *soc_dev;
+ int ret = 0;
+
+ /* We could be on a multi-platform kernel, don't make this fatal but
+ * bail out early
+ */
+ sun_top_ctrl = of_find_matching_node(NULL, sun_top_ctrl_match);
+ if (!sun_top_ctrl)
+ return ret;
soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
if (!soc_dev_attr) {
@@ -107,14 +130,10 @@ static int __init brcmstb_soc_device_init(void)
kfree(soc_dev_attr->soc_id);
kfree(soc_dev_attr->revision);
kfree(soc_dev_attr);
- ret = -ENODEV;
- goto out;
+ ret = -ENOMEM;
}
-
- return 0;
-
out:
- iounmap(sun_top_ctrl_base);
+ of_node_put(sun_top_ctrl);
return ret;
}
arch_initcall(brcmstb_soc_device_init);

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