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usb: dwc3: core: allow pm runtime for rockchip platform

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Most of rockchip platforms support power domain for dwc3.
Allow the pm runtime to manage the power domain for dwc3
in the dwc3 runtime PM routine.

Signed-off-by: William Wu <william.wu@rock-chips.com>
Change-Id: I49e3fa207db8aea0355a797b69c9c8a791d2eaa3
This commit is contained in:
William Wu
2021-08-31 16:38:44 +08:00
parent 7e4881a49e
commit d8b7417bea
2 changed files with 17 additions and 1 deletions
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9
drivers/usb/dwc3/core.c
View File

@@ -1642,7 +1642,14 @@ static int dwc3_probe(struct platform_device *pdev)
goto err5;
dwc3_debugfs_init(dwc);
pm_runtime_put(dev);
if (of_device_is_compatible(dev->parent->of_node,
"rockchip,rk3399-dwc3")) {
pm_runtime_allow(dev);
pm_runtime_put_sync_suspend(dev);
} else {
pm_runtime_put(dev);
}
return 0;

9
drivers/usb/dwc3/gadget.c
View File

@@ -2581,6 +2581,15 @@ static int __dwc3_gadget_start(struct dwc3 *dwc)
int ret = 0;
u32 reg;
/*
* If the DWC3 is in runtime suspend, the clocks maybe
* disabled, so avoid enable the DWC3 endpoints here.
* The DWC3 runtime PM resume routine will handle the
* gadget start sequence.
*/
if (pm_runtime_suspended(dwc->dev))
return ret;
/*
* Use IMOD if enabled via dwc->imod_interval. Otherwise, if
* the core supports IMOD, disable it.