There could be simple MFD device(s) connected to a simple PM bus as child
node(s), like Freescale i.MX8qxp pixel link MSI bus. Add a child match
table as an argument to of_platform_populate() function call to specify
the simple MFD devices so that they can be populated.
Signed-off-by: Liu Ying <victor.liu@xxxxxxx>
---
drivers/bus/simple-pm-bus.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/bus/simple-pm-bus.c b/drivers/bus/simple-pm-bus.c
index 6b8d6257ed8a..ff5f8ca5c024 100644
--- a/drivers/bus/simple-pm-bus.c
+++ b/drivers/bus/simple-pm-bus.c
@@ -13,6 +13,11 @@
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
+static const struct of_device_id simple_pm_bus_child_matches[] = {
+ { .compatible = "simple-mfd", },
+ {}
+};
+
static int simple_pm_bus_probe(struct platform_device *pdev)
{
const struct device *dev = &pdev->dev;
@@ -49,7 +54,7 @@ static int simple_pm_bus_probe(struct platform_device *pdev)
pm_runtime_enable(&pdev->dev);
if (np)
- of_platform_populate(np, NULL, lookup, &pdev->dev);
+ of_platform_populate(np, simple_pm_bus_child_matches, lookup, &pdev->dev);
return 0;
}
--
2.25.1
