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usb: host: xhci-plat: allow upper layers to signal power loss

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Now that xhci_resume() exposes a power_lost boolean argument, expose
that to all xhci-plat implementations. They are free to set it from
wherever they want:
 - Their own resume() callback.
 - The xhci_plat_priv::resume_quirk() callback.

Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://lore.kernel.org/r/20250205-s2r-cdns-v7-8-13658a271c3c@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Théo Lebrun 2025-02-05 18:36:53 +01:00 committed by Greg Kroah-Hartman
parent 34cca0ceab
commit 668cc6bc11
2 changed files with 3 additions and 1 deletions
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3
drivers/usb/host/xhci-plat.c
View File

@ -482,6 +482,7 @@ static int xhci_plat_suspend(struct device *dev)
static int xhci_plat_resume_common(struct device *dev, bool power_lost)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
int ret;
@ -501,7 +502,7 @@ static int xhci_plat_resume_common(struct device *dev, bool power_lost)
if (ret)
goto disable_clks;
ret = xhci_resume(xhci, power_lost, false);
ret = xhci_resume(xhci, power_lost || priv->power_lost, false);
if (ret)
goto disable_clks;

1
drivers/usb/host/xhci-plat.h
View File

@ -15,6 +15,7 @@ struct usb_hcd;
struct xhci_plat_priv {
const char *firmware_name;
unsigned long long quirks;
bool power_lost;
void (*plat_start)(struct usb_hcd *);
int (*init_quirk)(struct usb_hcd *);
int (*suspend_quirk)(struct usb_hcd *);