[PATCH v4] usb: ehci-hcd: notify phy when connect change
From: Richard Zhao <hidden>
Date: 2012-06-06 01:29:50
Also in:
linux-devicetree
Subsystem:
the rest, usb ehci driver, usb subsystem · Maintainers:
Linus Torvalds, Alan Stern, Greg Kroah-Hartman
Possibly related (same subject, not in this thread)
- 2012-06-07 · RE: [PATCH v4] usb: ehci-hcd: notify phy when connect change · Chen Peter-B29397 <hidden>
- 2012-06-07 · Re: [PATCH v4] usb: ehci-hcd: notify phy when connect change · Richard Zhao <hidden>
- 2012-06-07 · RE: [PATCH v4] usb: ehci-hcd: notify phy when connect change · Chen Peter-B29397 <hidden>
- 2012-06-06 · Re: [PATCH v4] usb: ehci-hcd: notify phy when connect change · Alan Stern <hidden>
- 2012-06-06 · Re: [PATCH v4] usb: ehci-hcd: notify phy when connect change · Alexander Shishkin <hidden>
It still has below limitations: - it does not work for multi-phy ehci - the best place is after debounce, but I can't get phy there Signed-off-by: Richard Zhao <redacted> --- drivers/usb/host/ehci-hcd.c | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index b100f5f..724ac471 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c@@ -928,6 +928,21 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) pstatus = ehci_readl(ehci, &ehci->regs->port_status[i]); + /* FIXME: + * - it does not work for multi-phy ehci + * - the best place is after debounce, but I can't get + * phy there + */ + if (unlikely(ehci->transceiver && + (pstatus & PORT_CSC))) { + if (pstatus & PORT_CONNECT) + usb_phy_notify_connect( + ehci->transceiver, i); + else + usb_phy_notify_disconnect( + ehci->transceiver, i); + } + if (pstatus & PORT_OWNER) continue; if (!(test_bit(i, &ehci->suspended_ports) &&
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1.7.5.4