Commit 726b4fba authored by Felipe Balbi's avatar Felipe Balbi
Browse files

usb: dwc3: of-simple: add a shutdown 



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: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent 387c359b

drivers/usb/dwc3/dwc3-of-simple.c

+20 −8
Original line number Diff line number Diff line
@@ -110,12 +110,9 @@ err_resetc_put: 
	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,

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