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Diffstat (limited to 'drivers/pmdomain/samsung/exynos-pm-domains.c')
-rw-r--r--drivers/pmdomain/samsung/exynos-pm-domains.c29
1 files changed, 14 insertions, 15 deletions
diff --git a/drivers/pmdomain/samsung/exynos-pm-domains.c b/drivers/pmdomain/samsung/exynos-pm-domains.c
index 5d478bb37ad6..5c3aa8983087 100644
--- a/drivers/pmdomain/samsung/exynos-pm-domains.c
+++ b/drivers/pmdomain/samsung/exynos-pm-domains.c
@@ -92,13 +92,14 @@ static const struct of_device_id exynos_pm_domain_of_match[] = {
{ },
};
-static const char *exynos_get_domain_name(struct device_node *node)
+static const char *exynos_get_domain_name(struct device *dev,
+ struct device_node *node)
{
const char *name;
if (of_property_read_string(node, "label", &name) < 0)
name = kbasename(node->full_name);
- return kstrdup_const(name, GFP_KERNEL);
+ return devm_kstrdup_const(dev, name, GFP_KERNEL);
}
static int exynos_pd_probe(struct platform_device *pdev)
@@ -115,20 +116,27 @@ static int exynos_pd_probe(struct platform_device *pdev)
if (!pd)
return -ENOMEM;
- pd->pd.name = exynos_get_domain_name(np);
+ pd->pd.name = exynos_get_domain_name(dev, np);
if (!pd->pd.name)
return -ENOMEM;
pd->base = of_iomap(np, 0);
- if (!pd->base) {
- kfree_const(pd->pd.name);
+ if (!pd->base)
return -ENODEV;
- }
pd->pd.power_off = exynos_pd_power_off;
pd->pd.power_on = exynos_pd_power_on;
pd->local_pwr_cfg = pm_domain_cfg->local_pwr_cfg;
+ /*
+ * Some Samsung platforms with bootloaders turning on the splash-screen
+ * and handing it over to the kernel, requires the power-domains to be
+ * reset during boot.
+ */
+ if (IS_ENABLED(CONFIG_ARM) &&
+ of_device_is_compatible(np, "samsung,exynos4210-pd"))
+ exynos_pd_power_off(&pd->pd);
+
on = readl_relaxed(pd->base + 0x4) & pd->local_pwr_cfg;
pm_genpd_init(&pd->pd, NULL, !on);
@@ -147,15 +155,6 @@ static int exynos_pd_probe(struct platform_device *pdev)
parent.np, child.np);
}
- /*
- * Some Samsung platforms with bootloaders turning on the splash-screen
- * and handing it over to the kernel, requires the power-domains to be
- * reset during boot. As a temporary hack to manage this, let's enforce
- * a sync_state.
- */
- if (!ret)
- of_genpd_sync_state(np);
-
pm_runtime_enable(dev);
return ret;
}