linux-kernel - [PATCH 1/2] dt-bindings: usb-ehci: Add an optional property "needs-reset-on-resume"

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Message-Id: <1419416539-3830-2-git-send-email-wulf@rock-chips.com>
Date:	Wed, 24 Dec 2014 18:22:18 +0800
From:	Wu Liang feng <wulf@...k-chips.com>
To:	heiko@...ech.de
Cc:	huangtao@...k-chips.com, kever.yang@...k-chips.com,
	eddie.cai@...k-chips.com, roy.li@...k-chips.com,
	zyw@...k-chips.com, jwerner@...gle.com, dianders@...gle.com,
	posciak@...gle.com, tfiga@...gle.com, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org, Wu Liang feng <wulf@...k-chips.com>
Subject: [PATCH 1/2] dt-bindings: usb-ehci: Add an optional property "needs-reset-on-resume"

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@...k-chips.com>
Reviewed-by: Julius Werner <jwerner@...gle.com>
Reviewed-by: Doug Anderson <dianders@...gle.com>
Reviewed-by: Tomasz Figa <tfiga@...gle.com>
Reviewed-by: Pawel Osciak <posciak@...gle.com>
Reviewed-by: Sonny Rao <sonnyrao@...gle.com>
Acked-by: Alan Stern <stern@...land.harvard.edu>
Tested-by: Doug Anderson <dianders@...gle.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


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