From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vince Bridgers Subject: [PATCH net v5 0/3] net: libphy: Add phy specific functions to access mmd regs Date: Tue, 29 Jul 2014 15:19:56 -0500 Message-ID: <1406665199-18174-1-git-send-email-vbridgers2013@gmail.com> Cc: vbridgers2013@gmail.com, vbridger@altera.com To: f.fainelli@gmail.com, rdunlap@infradead.org, davem@davemloft.net, netdev@vger.kernel.org Return-path: Received: from mail-pd0-f177.google.com ([209.85.192.177]:60859 "EHLO mail-pd0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752261AbaG2UXg (ORCPT ); Tue, 29 Jul 2014 16:23:36 -0400 Received: by mail-pd0-f177.google.com with SMTP id p10so195391pdj.22 for ; Tue, 29 Jul 2014 13:23:36 -0700 (PDT) Sender: netdev-owner@vger.kernel.org List-ID: This set of patches addresses a problem found with the Micrel ksz9021 phy and libphy, where the ksz9021 phy does not support mmd extended register access per the IEEE specification as assumed by libphy. The first patch adds a framework for phy specific support to specify their own function to access extended phy registers, return a failure code if not supported, or to default to libphy's IEEE defined method for accessing the mmd extended phy registers. This issue was found by using the Synopsys EMAC and a Micrel ksz9021 phy on the Altera Cyclone 5 SOC development kit. This patch was tested on the same system in both positive and negative test cases. --- V5: Revert name of mmd register access functions, check for phy specific driver override functions in mmd register access functions per Florian's comments to minimize source code changes V4: Correct error when formatting V3 patch - erroneous text cut from code V3: Correct formatting of function arguments, remove return statement from NULL functions, and add patch for PHY driver documentation per review comments. V2: Split the original patch submission into seperate patches for the libphy framework required for the modification and for the Micrel Phy. Vince Bridgers (3): net: libphy: Add phy specific function to access mmd phy registers net: libphy: Add stubs to hook IEEE MMD Register reads and writes Documentation: networking: phy.txt: Update text for indirect MMD access Documentation/networking/phy.txt | 18 ++++++++++- drivers/net/phy/micrel.c | 22 ++++++++++++++ drivers/net/phy/phy.c | 61 ++++++++++++++++++++++++-------------- include/linux/phy.h | 18 +++++++++++ 4 files changed, 95 insertions(+), 24 deletions(-) -- 1.7.9.5