From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
As the first step in switching to using the genpd driver in DT mode,
check if a relevant genpd node exists and don't setup the clock pm in
this case.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
---
arch/arm/mach-davinci/pm_domain.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-davinci/pm_domain.c b/arch/arm/mach-davinci/pm_domain.c
index 78eac2c0c146..98a4f3fcba50 100644
--- a/arch/arm/mach-davinci/pm_domain.c
+++ b/arch/arm/mach-davinci/pm_domain.c
@@ -13,6 +13,7 @@
#include <linux/pm_runtime.h>
#include <linux/pm_clock.h>
#include <linux/platform_device.h>
+#include <linux/of.h>
static struct dev_pm_domain davinci_pm_domain = {
.ops = {
@@ -28,7 +29,13 @@ static struct pm_clk_notifier_block platform_bus_notifier = {
static int __init davinci_pm_runtime_init(void)
{
- pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier);
+ struct device_node *np;
+
+ /* Use pm_clk as fallback if we're not using genpd. */
+ np = of_find_compatible_node(NULL, NULL, "ti,davinci-pm-domains");
+ if (!np)
+ pm_clk_add_notifier(&platform_bus_type,
+ &platform_bus_notifier);
return 0;
}
--
2.16.1
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