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net: phy: Cleanup the Edge-Rate feature in Microsemi PHYs.

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Edge-Rate cleanup include the following:
- Updated device tree bindings documentation for edge-rate
- The edge-rate is now specified as a "slowdown", meaning that it is now
  being specified as positive values instead of negative (both
  documentation and implementation wise).
- Only explicitly documented values for "vsc8531,vddmac" and
  "vsc8531,edge-slowdown" are accepted by the device driver.
- Deleted include/dt-bindings/net/mscc-phy-vsc8531.h as it was not needed.
- Read/validate devicetree settings in probe instead of init

Signed-off-by: Allan W. Nielsen <allan.nielsen@microsemi.com>
Signed-off-by: Raju Lakkaraju <raju.lakkaraju@microsemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Allan W. Nielsen
2016-10-12 15:47:51 +02:00
committed by David S. Miller
parent cf53b1da73
commit 4f58e6dceb
3 changed files with 92 additions and 119 deletions
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21
include/dt-bindings/net/mscc-phy-vsc8531.h
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@@ -1,21 +0,0 @@
/*
* Device Tree constants for Microsemi VSC8531 PHY
*
* Author: Nagaraju Lakkaraju
*
* License: Dual MIT/GPL
* Copyright (c) 2016 Microsemi Corporation
*/
#ifndef _DT_BINDINGS_MSCC_VSC8531_H
#define _DT_BINDINGS_MSCC_VSC8531_H
/* MAC interface Edge rate control VDDMAC in milli Volts */
#define MSCC_VDDMAC_3300 3300
#define MSCC_VDDMAC_2500 2500
#define MSCC_VDDMAC_1800 1800
#define MSCC_VDDMAC_1500 1500
#define MSCC_VDDMAC_MAX 4
#define MSCC_SLOWDOWN_MAX 8
#endif