@@ -12,6 +12,8 @@ Required Properties:
must be 0.
Optional Properties:
+- compatible: This is a second compatible name and gives the complete Power
+ Domain name like "samsung,exynos7-pd-mfc".
- clocks: List of clock handles. The parent clocks of the input clocks to the
devices in this power domain are set to oscclk before power gating
and restored back after powering on a domain. This is required for
@@ -43,5 +45,11 @@ Example:
#power-domain-cells = <0>;
};
+ mfc_pd: power-domain@10044060 {
+ compatible = "samsung,exynos4210-pd", "samsung,exynos7-pd-mfc";
+ reg = <0x10044060 0x20>;
+ #power-domain-cells = <0>;
+ };
+
See Documentation/devicetree/bindings/power/power_domain.txt for description
of consumer-side bindings.
@@ -120,12 +120,20 @@ static int exynos_power_domain_probe(struct platform_device *pdev)
struct exynos_pm_domain *pd;
int i;
bool on;
+ const char *name;
pd = devm_kzalloc(&pdev->dev, sizeof(*pd), GFP_KERNEL);
if (!pd)
return -ENOMEM;
- pd->pd.name = kstrdup(np->name, GFP_KERNEL);
+ /*
+ * Check if second compatible name found then use as power
+ * domain name or else use the DT node name as before.
+ */
+ if (of_property_read_string_index(np, "compatible", 1, &name))
+ name = np->name;
+
+ pd->pd.name = kstrdup(name, GFP_KERNEL);
pd->name = pd->pd.name;
pd->base = of_iomap(np, 0);
pd->pd.power_off = exynos_pd_power_off;
This patch adds support for second optional compatible complate name. If this compatible name is present then this name will be used to create the Power Domain and not the DT node name. This will be useful to carry out any power domain specific changes in the PD on/off handlers for new SoCs. This change will not affect the existing DT bindings. Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com> --- .../bindings/arm/exynos/power_domain.txt | 8 ++++++++ drivers/soc/samsung/pm_domains.c | 10 +++++++++- 2 files changed, 17 insertions(+), 1 deletion(-)