From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH 4/4] libata: skip debounce delay on link resume Date: Fri, 8 Jan 2016 11:50:43 -0500 Message-ID: <20160108165043.GT1898@mtj.duckdns.org> References: <1452211413-1350-1-git-send-email-f.fainelli@gmail.com> <1452211413-1350-5-git-send-email-f.fainelli@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-yk0-f174.google.com ([209.85.160.174]:34864 "EHLO mail-yk0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751076AbcAHQup (ORCPT ); Fri, 8 Jan 2016 11:50:45 -0500 Content-Disposition: inline In-Reply-To: <1452211413-1350-5-git-send-email-f.fainelli@gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Florian Fainelli Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, computersforpeace@gmail.com, gregory.0xf0@gmail.com, Danesh Petigara On Thu, Jan 07, 2016 at 04:03:33PM -0800, Florian Fainelli wrote: > From: Danesh Petigara > > The link resume logic uses a 200msec delay while debouncing > the SControl register. The rationale behind that delay is > to accommodate some PHYs that behave badly if their SStatus/ > SControl registers are pounded immediately on resume. > The Broadcom STB SATA PHY does not seem to have this issue. > This patch introduces a new link flag that allows platforms > to skip the debounce delay if it isn't needed. > > Signed-off-by: Danesh Petigara > Signed-off-by: Florian Fainelli Applied to libata/for-4.5. Thanks. -- tejun