Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756684Ab3HFVik (ORCPT ); Tue, 6 Aug 2013 17:38:40 -0400 Received: from mail-qe0-f73.google.com ([209.85.128.73]:56972 "EHLO mail-qe0-f73.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756409Ab3HFViE (ORCPT ); Tue, 6 Aug 2013 17:38:04 -0400 From: Doug Anderson To: Chris Ball Cc: Olof Johansson , Jaehoon Chung , Seungwon Jeon , James Hogan , Grant Grundler , Alim Akhtar , Abhilash Kesavan , Tomasz Figa , Doug Anderson , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 4/4] mmc: dw_mmc: Set timeout to max upon resume Date: Tue, 6 Aug 2013 14:37:51 -0700 Message-Id: <1375825071-20922-5-git-send-email-dianders@chromium.org> X-Mailer: git-send-email 1.8.3 In-Reply-To: <1375825071-20922-1-git-send-email-dianders@chromium.org> References: <1373470926-19314-1-git-send-email-dianders@chromium.org> <1375825071-20922-1-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: 1338 Lines: 39 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 --- 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 0fa3135..1abcb36 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/