usb: chipidea: host: add suspend/resume support for host controller
The controller's power may be powered off during system suspend. This will add suspend/resume support when the controller suffers power lost. Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Link: https://lore.kernel.org/r/20221013151442.3262951-4-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -459,6 +459,18 @@ static void ci_hdrc_unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb)
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ci_hdrc_free_dma_aligned_buffer(urb);
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}
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#ifdef CONFIG_PM_SLEEP
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static void ci_hdrc_host_suspend(struct ci_hdrc *ci)
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{
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ehci_suspend(ci->hcd, device_may_wakeup(ci->dev));
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}
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static void ci_hdrc_host_resume(struct ci_hdrc *ci, bool power_lost)
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{
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ehci_resume(ci->hcd, power_lost);
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}
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#endif
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int ci_hdrc_host_init(struct ci_hdrc *ci)
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{
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struct ci_role_driver *rdrv;
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@ -472,6 +484,10 @@ int ci_hdrc_host_init(struct ci_hdrc *ci)
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rdrv->start = host_start;
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rdrv->stop = host_stop;
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#ifdef CONFIG_PM_SLEEP
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rdrv->suspend = ci_hdrc_host_suspend;
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rdrv->resume = ci_hdrc_host_resume;
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#endif
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rdrv->irq = host_irq;
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rdrv->name = "host";
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ci->roles[CI_ROLE_HOST] = rdrv;
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