From mboxrd@z Thu Jan 1 00:00:00 1970 From: Raju Lakkaraju Subject: Re: [v3,net-next] net: phy: Add Edge-rate driver for Microsemi PHYs. Date: Wed, 28 Sep 2016 16:42:16 +0530 Message-ID: <20160928111215.GB22063@microsemi.com> References: <20160927211436.GA11602@lunn.ch> Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: netdev To: Andrew Lunn Return-path: Received: from mail-bn3nam01on0056.outbound.protection.outlook.com ([104.47.33.56]:28736 "EHLO NAM01-BN3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753329AbcI1L1R (ORCPT ); Wed, 28 Sep 2016 07:27:17 -0400 Content-Disposition: inline In-Reply-To: <20160927211436.GA11602@lunn.ch> Sender: netdev-owner@vger.kernel.org List-ID: Hi Andrew, Thank you for review and valuable comments. I will implement below suggestion and resend for review. Thanks, Raju. On Tue, Sep 27, 2016 at 11:14:36PM +0200, Andrew Lunn wrote: > EXTERNAL EMAIL > > > I just realised the possibly correct binding was starring me in the > face. > > --------------------------------------------------------------| > | 3.3V 2.5V 1.8V 1.5V | > |-------------------------------------------------------------| > |-2% -3% -5% -6% | > |-------------------------------------------------------------| > |-4% -6% -9% -14% | > |-------------------------------------------------------------| > |-7% -10% -16% -21% | > |-------------------------------------------------------------| > |-10% -14% -23% -29% | > |-------------------------------------------------------------| > |-17% -23% -35% -42% | > |-------------------------------------------------------------| > |-29% -37% -52% -58% | > |-------------------------------------------------------------| > |-53% -63% -76% -77% | > |-------------------------------------------------------------| > > So the binding is: > > vsc8531,vddmac : The vddmac in mV. > vsc8531,edge-slowdown : % the edge should be slowed down relative to > the fastest possible edge time. > > Given those two values, the driver can work out the magic value to put > into the register that nobody knows the true meaning of. > Accepted. > Andrew --- Raju.