From: Seungwon Jeon <tgih.jun@samsung.com>
To: linux-mmc@vger.kernel.org
Cc: 'Chris Ball' <cjb@laptop.org>, 'Jaehoon Chung' <jh80.chung@samsung.com>
Subject: [PATCH 04/22] mmc: dw_mmc: Set timeout to max upon resume
Date: Sat, 31 Aug 2013 00:11:49 +0900 [thread overview]
Message-ID: <000701cea593$4044a860$c0cdf920$%jun@samsung.com> (raw)
In-Reply-To:
From: Doug Anderson <dianders@chromium.org>
The TMOUT register is set to 0xffffffff at probe time but isn't
set after suspend/resume. Add an init of this value.
No problems were observed without this (it will also be set 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 <dianders@chromium.org>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
---
drivers/mmc/host/dw_mmc.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 3ad0fd8..b5bf6eb 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2510,6 +2510,9 @@ 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 |
--
1.7.0.4
reply other threads:[~2013-08-30 15:11 UTC|newest]
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