In case we're loading a new kernel via kexec, let's make sure to
cleanup the dwc3 address space correctly. This means that we should
run the same steps from driver remove, so just extract a reusable
function for both cases.
Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
---
drivers/usb/dwc3/dwc3-of-simple.c | 28 ++++++++++++++++++++--------
1 file changed, 20 insertions(+), 8 deletions(-)
diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c
index bdac3e7d7b18..e64754be47b4 100644
--- a/drivers/usb/dwc3/dwc3-of-simple.c
+++ b/drivers/usb/dwc3/dwc3-of-simple.c
@@ -110,12 +110,9 @@ static int dwc3_of_simple_probe(struct platform_device *pdev)
return ret;
}
-static int dwc3_of_simple_remove(struct platform_device *pdev)
+static void __dwc3_of_simple_teardown(struct dwc3_of_simple *simple)
{
- struct dwc3_of_simple *simple = platform_get_drvdata(pdev);
- struct device *dev = &pdev->dev;
-
- of_platform_depopulate(dev);
+ of_platform_depopulate(simple->dev);
clk_bulk_disable_unprepare(simple->num_clocks, simple->clks);
clk_bulk_put_all(simple->num_clocks, simple->clks);
@@ -126,13 +123,27 @@ static int dwc3_of_simple_remove(struct platform_device *pdev)
reset_control_put(simple->resets);
- pm_runtime_disable(dev);
- pm_runtime_put_noidle(dev);
- pm_runtime_set_suspended(dev);
+ pm_runtime_disable(simple->dev);
+ pm_runtime_put_noidle(simple->dev);
+ pm_runtime_set_suspended(simple->dev);
+}
+
+static int dwc3_of_simple_remove(struct platform_device *pdev)
+{
+ struct dwc3_of_simple *simple = platform_get_drvdata(pdev);
+
+ __dwc3_of_simple_teardown(simple);
return 0;
}
+static void dwc3_of_simple_shutdown(struct platform_device *pdev)
+{
+ struct dwc3_of_simple *simple = platform_get_drvdata(pdev);
+
+ __dwc3_of_simple_teardown(simple);
+}
+
static int __maybe_unused dwc3_of_simple_runtime_suspend(struct device *dev)
{
struct dwc3_of_simple *simple = dev_get_drvdata(dev);
@@ -190,6 +201,7 @@ MODULE_DEVICE_TABLE(of, of_dwc3_simple_match);
static struct platform_driver dwc3_of_simple_driver = {
.probe = dwc3_of_simple_probe,
.remove = dwc3_of_simple_remove,
+ .shutdown = dwc3_of_simple_shutdown,
.driver = {
.name = "dwc3-of-simple",
.of_match_table = of_dwc3_simple_match,
--
2.23.0
