Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030324Ab3HIQiw (ORCPT ); Fri, 9 Aug 2013 12:38:52 -0400 Received: from mail-ve0-f201.google.com ([209.85.128.201]:42363 "EHLO mail-ve0-f201.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S968090Ab3HIQiv (ORCPT ); Fri, 9 Aug 2013 12:38:51 -0400 From: Doug Anderson To: Chris Ball Cc: Jaehoon Chung , Seungwon Jeon , James Hogan , Grant Grundler , Alim Akhtar , Abhilash Kesavan , Tomasz Figa , Olof Johansson , Doug Anderson , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 4/4] mmc: dw_mmc: Set timeout to max upon resume Date: Fri, 9 Aug 2013 09:33:20 -0700 Message-Id: <1376066000-5495-5-git-send-email-dianders@chromium.org> X-Mailer: git-send-email 1.8.3 In-Reply-To: <1376066000-5495-1-git-send-email-dianders@chromium.org> References: <1375825071-20922-1-git-send-email-dianders@chromium.org> <1376066000-5495-1-git-send-email-dianders@chromium.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1404 Lines: 41 The TMOUT register is initted to 0xffffffff at probe time but isn't initted after suspend/resume. Add an init of this value. No problems were observed without this (it will also get initted in __dw_mci_start_request if there is data to send), but it makes the register dump before and after suspend clean. Signed-off-by: Doug Anderson Acked-by: Seungwon Jeon Reviewed-by: Tomasz Figa --- Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None drivers/mmc/host/dw_mmc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 3d1ee2d..bc9f22c 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -2505,6 +2505,9 @@ int dw_mci_resume(struct dw_mci *host) /* Restore the old value at FIFOTH register */ mci_writel(host, FIFOTH, host->fifoth_val); + /* Put in max timeout */ + mci_writel(host, TMOUT, 0xFFFFFFFF); + mci_writel(host, RINTSTS, 0xFFFFFFFF); mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER | SDMMC_INT_TXDR | SDMMC_INT_RXDR | -- 1.8.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/