From: Lan Tianyu <tianyu.lan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
To: gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org,
lenb-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org
Cc: linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-acpi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
stern-nwvwT67g6+6dFdvTe/nMLpVzexx5G7lz@public.gmane.org,
sarah.a.sharp-VuQAYsv1563Yd54FQh9/CA@public.gmane.org,
Lan Tianyu <tianyu.lan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: [RFC PATCH 1/3] xhci: Add clear PORT_POWER feature process in the xhci_hub_control()
Date: Fri, 25 May 2012 13:48:00 +0800 [thread overview]
Message-ID: <1337924882-17332-2-git-send-email-tianyu.lan@intel.com> (raw)
In-Reply-To: <1337924882-17332-1-git-send-email-tianyu.lan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
This patch is to add process of clearing PORT_POWER feature request
for xhci hub.
Signed-off-by: Lan Tianyu <tianyu.lan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
drivers/usb/host/xhci-hub.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 2732ef6..feb515e 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -827,6 +827,11 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
xhci_disable_port(hcd, xhci, wIndex,
port_array[wIndex], temp);
break;
+ case USB_PORT_FEAT_POWER:
+ temp = xhci_readl(xhci, port_array[wIndex])
+ & ~PORT_POWER;
+ xhci_writel(xhci, temp, port_array[wIndex]);
+ break;
default:
goto error;
}
--
1.7.6.rc2.8.g28eb
--
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next prev parent reply other threads:[~2012-05-25 5:48 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-25 5:47 [RFC PATCH 0/3] USB/ACPI: Add usb port power off mechanism Lan Tianyu
[not found] ` <1337924882-17332-1-git-send-email-tianyu.lan-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2012-05-25 5:48 ` Lan Tianyu [this message]
2012-05-28 10:28 ` [RFC PATCH 1/3] xhci: Add clear PORT_POWER feature process in the xhci_hub_control() Andiry Xu
2012-05-28 5:54 ` Lan Tianyu
2012-05-25 5:48 ` [RFC PATCH 2/3] USB/ACPI: Add usb port's acpi power control in the xhci PORT_POWER feature request process Lan Tianyu
2012-05-25 5:48 ` [RFC PATCH 3/3] usb : Add sysfs files to control usb port's power Lan Tianyu
2012-05-25 15:41 ` Alan Stern
2012-05-28 5:35 ` Lan Tianyu
2012-05-28 15:14 ` Alan Stern
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