From: Huang Rui <ray.huang@amd.com>
Date: Fri, 31 Oct 2014 03:11:18 +0000 (+0800)
Subject: usb: dwc3: make HIRD threshold configurable
X-Git-Tag: omap-for-v3.19/fixes-rc1~87^2~32^2~103
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=460d098cb6728134e0e4ba3d58e10bb43032daa5;p=pandora-kernel.git

usb: dwc3: make HIRD threshold configurable

HIRD threshold should be configurable by different platforms.

From DesignWare databook:
When HIRD_Threshold[4] is set to 1b1 and HIRD value is greater than or
equal to the value in HIRD_Threshold[3:0], dwc3 asserts output signals
utmi_l1_suspend_n to put PHY into Deep Low-Power mode in L1.

When HIRD_Threshold[4] is set to 1b0 or the HIRD value is less than
HIRD_Threshold[3:0], dwc3 asserts output signals utmi_sleep_n on L1.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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