From mboxrd@z Thu Jan 1 00:00:00 1970 From: Grygorii Strashko Subject: Re: [PATCH net v3 0/5] drivers: net: cpsw: phy-handle fixes Date: Thu, 28 Apr 2016 18:55:34 +0300 Message-ID: <57223276.8070603@ti.com> References: <1461805808-4102-1-git-send-email-drivshin.allworx@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1461805808-4102-1-git-send-email-drivshin.allworx@gmail.com> Sender: netdev-owner@vger.kernel.org To: "David Rivshin (Allworx)" , netdev@vger.kernel.org, linux-omap@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, David Miller , Mugunthan V N , Andrew Goodbody , Markus Brunner , Nicolas Chauvet List-Id: linux-omap@vger.kernel.org On 04/28/2016 04:10 AM, David Rivshin (Allworx) wrote: > From: David Rivshin > > This series fixes a number of related issues around using phy-handle > properties in cpsw emac nodes. > > Patch 1 fixes a bug if more than one slave is used, and either > slave uses the phy-handle property in the devicetree. > > Patch 2 fixes a NULL pointer dereference which can occur if a > phy-handle property is used and of_phy_connect() return NULL, > such as with a bad devicetree. > > Patch 3 fixes an issue where the phy-mode property would be ignored > if a phy-handle property was used. This also fixes a bogus error > message that would be emitted. > > Patch 4 fixes makes the binding documentation more explicit that > exactly one PHY property should be used, and also marks phy_id as > deprecated. > > Patch 5 cleans up the fixed-link case to work like the now-fixed > phy-handle case. > > I have tested on the following hardware configurations: > - (EVMSK) dual emac, phy_id property in both slaves > - (EVMSK) dual emac, phy-handle property in both slaves > - (EVMSK) a bad phy-handle property pointing to &mmc1 > - (EVMSK) phy_id property with incorrect PHY address > - (BeagleBoneBlack) single emac, phy_id property > - (custom) single emac, fixed-link subnode > > Andrew Goodbody reported testing v2 on a board that doesn't use > dual_emac mode, but with 2 PHYs using phy-handle properties [1]. > > Nicolas Chauvet reported testing v2 on an HP t410 (dm8148). > > Markus Brunner reported testing v1 on the following [2]: > - emac0 with phy_id and emac1 with fixed phy > - emac0 with phy-handle and emac1 with fixed phy > - emac0 with fixed phy and emac1 with fixed phy > > [1] https://lkml.org/lkml/2016/4/22/537 > [2] http://www.spinics.net/lists/netdev/msg357890.html > > David Rivshin (5): > drivers: net: cpsw: fix parsing of phy-handle DT property in dual_emac > config > drivers: net: cpsw: fix segfault in case of bad phy-handle > drivers: net: cpsw: don't ignore phy-mode if phy-handle is used > dt: cpsw: phy-handle, phy_id, and fixed-link are mutually exclusive > drivers: net: cpsw: use of_phy_connect() in fixed-link case > > Documentation/devicetree/bindings/net/cpsw.txt | 6 +-- > drivers/net/ethernet/ti/cpsw.c | 69 ++++++++++++++------------ > drivers/net/ethernet/ti/cpsw.h | 1 + > 3 files changed, 41 insertions(+), 35 deletions(-) > Thanks a lot. Reviewed-by: Grygorii Strashko -- regards, -grygorii