From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755519AbdJLULl (ORCPT ); Thu, 12 Oct 2017 16:11:41 -0400 Received: from mail-pf0-f175.google.com ([209.85.192.175]:54758 "EHLO mail-pf0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755299AbdJLULi (ORCPT ); Thu, 12 Oct 2017 16:11:38 -0400 X-Google-Smtp-Source: AOwi7QCqUXShUjzFQsPntI/1FxtsIO1Jz0KzyZ9tinXW9OV/wcQmO0PbNt3hJtch3jtfAKFzY9FLpg== From: Douglas Anderson To: jh80.chung@samsung.com, ulf.hansson@linaro.org, shawn.lin@rock-chips.com Cc: xzy.xu@rock-chips.com, amstan@chromium.org, linux-rockchip@lists.infradead.org, briannorris@chromium.org, linux-samsung-soc@vger.kernel.org, kernel@esmil.dk, Douglas Anderson , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/5] mmc: dw_mmc: Fix the CTO timer patch, plus the DTO timer Date: Thu, 12 Oct 2017 13:11:13 -0700 Message-Id: <20171012201118.23570-1-dianders@chromium.org> X-Mailer: git-send-email 2.15.0.rc0.271.g36b669edcc-goog Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Recently we landed 03de19212ea3 ("mmc: dw_mmc: introduce timer for broken command transfer over scheme"). I found a bunch of problems with that patch, so this series attempts to solve some of them. This also fixes the DTO timer in some of the same ways even though I haven't personally seen problems with the DTO timer. NOTE: this series has only been lighly tested so far. I can at least reproduce the need for the CTO timer on one of my devices and so I can confirm that part still works. As mentioned in the 3rd patch I also ran the mmc_test kernel module on this and did manage to see the 3rd patch doing something useful. Changes in v2: - Removed extra "int i" - Fix the DTO timeout calculation new for v2 - Cleanup the DTO timer new for v2 Douglas Anderson (5): mmc: dw_mmc: cancel the CTO timer after a voltage switch mmc: dw_mmc: Fix the CTO timeout calculation mmc: dw_mmc: Add locking to the CTO timer mmc: dw_mmc: Fix the DTO timeout calculation mmc: dw_mmc: Cleanup the DTO timer like the CTO one drivers/mmc/host/dw_mmc.c | 162 +++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 146 insertions(+), 16 deletions(-) -- 2.15.0.rc0.271.g36b669edcc-goog