From mboxrd@z Thu Jan 1 00:00:00 1970 From: Doug Anderson Subject: [PATCH v6 3/3] mmc: dw_mmc: Set timeout to max upon resume Date: Thu, 22 Aug 2013 09:19:08 -0700 Message-ID: <1377188348-3418-4-git-send-email-dianders@chromium.org> References: <1377188348-3418-1-git-send-email-dianders@chromium.org> Return-path: In-Reply-To: <1377188348-3418-1-git-send-email-dianders@chromium.org> Sender: linux-kernel-owner@vger.kernel.org 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 List-Id: linux-mmc@vger.kernel.org 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 cleaner. Signed-off-by: Doug Anderson Acked-by: Seungwon Jeon Reviewed-by: Tomasz Figa --- Changes in v6: None 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 f6c7545..6a9a846 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -2506,6 +2506,9 @@ 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