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From: Wu Liang feng <wulf@rock-chips.com>
To: heiko@sntech.de
Cc: huangtao@rock-chips.com, kever.yang@rock-chips.com,
	eddie.cai@rock-chips.com, roy.li@rock-chips.com,
	zyw@rock-chips.com, jwerner@google.com, dianders@google.com,
	posciak@google.com, tfiga@google.com,
	linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org,
	Wu Liang feng <wulf@rock-chips.com>
Subject: [PATCH 1/2] dt-bindings: usb-ehci: Add an optional property "needs-reset-on-resume"
Date: Mon, 22 Dec 2014 18:36:27 +0800	[thread overview]
Message-ID: <1419244588-5227-2-git-send-email-wulf@rock-chips.com> (raw)
In-Reply-To: <1419244588-5227-1-git-send-email-wulf@rock-chips.com>

Add device-tree bindings for EHCI so we can use "needs-reset-on-resume"
property to force EHCI reset after resume if necessary. This is necessary
on platforms like rk3288 that need a reset after resume to detect if a
device has been disconnected during suspend time.

Signed-off-by: Wu Liang feng <wulf@rock-chips.com>
---
 Documentation/devicetree/bindings/usb/usb-ehci.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/usb/usb-ehci.txt b/Documentation/devicetree/bindings/usb/usb-ehci.txt
index 43c1a4e..0b04fdf 100644
--- a/Documentation/devicetree/bindings/usb/usb-ehci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-ehci.txt
@@ -12,6 +12,7 @@ Optional properties:
  - big-endian-regs : boolean, set this for hcds with big-endian registers
  - big-endian-desc : boolean, set this for hcds with big-endian descriptors
  - big-endian : boolean, for hcds with big-endian-regs + big-endian-desc
+ - needs-reset-on-resume : boolean, set this to force EHCI reset after resume
  - clocks : a list of phandle + clock specifier pairs
  - phys : phandle + phy specifier pair
  - phy-names : "usb"
-- 
1.8.3.2



  reply	other threads:[~2014-12-22 10:45 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-22 10:36 [PATCH 0/2] Support EHCI reset after resume quirk Wu Liang feng
2014-12-22 10:36 ` Wu Liang feng [this message]
2014-12-22 17:06   ` [PATCH 1/2] dt-bindings: usb-ehci: Add an optional property "needs-reset-on-resume" Doug Anderson
2014-12-22 10:36 ` [PATCH 2/2] USB: ehci-platform: Support ehci reset after resume quirk Wu Liang feng
2014-12-22 16:06   ` Alan Stern
2014-12-22 17:05     ` Doug Anderson
2014-12-22 21:04       ` Alan Stern
2014-12-22 22:03         ` Doug Anderson
2014-12-22 18:25     ` Julius Werner
2014-12-24 10:22 [PATCH v2 0/2] Support EHCI " Wu Liang feng
2014-12-24 10:22 ` [PATCH 1/2] dt-bindings: usb-ehci: Add an optional property "needs-reset-on-resume" Wu Liang feng

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