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| author | Felipe Balbi <felipe.balbi@linux.intel.com> | 2019-10-29 12:56:11 +0200 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2019-10-29 12:56:11 +0200 |
| commit | 726b4fba94bec7e4c16bc681316e82455652c3a8 (patch) | |
| tree | b9265674ee329a8e5818e75be82e452ea8709d9a /drivers/usb/dwc3 | |
| parent | 387c359b84f71ca29c1a9fa24293c65a257f6bf5 (diff) | |
| download | linux-stable-726b4fba94bec7e4c16bc681316e82455652c3a8.tar.gz linux-stable-726b4fba94bec7e4c16bc681316e82455652c3a8.tar.bz2 linux-stable-726b4fba94bec7e4c16bc681316e82455652c3a8.zip | |
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: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc3')
| -rw-r--r-- | drivers/usb/dwc3/dwc3-of-simple.c | 28 |
1 files 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 @@ 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, |