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[04/22] mmc: dw_mmc: Set timeout to max upon resume

Message ID 000701cea593$4044a860$c0cdf920$%jun@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Seungwon Jeon Aug. 30, 2013, 3:11 p.m. UTC 
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(-)
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Patch

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 |