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usb: dwc3: add Tx de-emphasis quirk
authorHuang Rui <ray.huang@amd.com>
Fri, 31 Oct 2014 03:11:12 +0000 (11:11 +0800)
committerFelipe Balbi <balbi@ti.com>
Mon, 3 Nov 2014 16:03:39 +0000 (10:03 -0600)
This patch adds Tx de-emphasis quirk, and the Tx de-emphasis value is
configurable according to PIPE3 specification.

Value Description
0 -6dB de-emphasis
1 -3.5dB de-emphasis
2 No de-emphasis
3 Reserved

It can be configured on DT or platform data.

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

No differences found
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