summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorWill Newton <will.newton@gmail.com>2011-02-10 10:40:57 +0000
committerChris Ball <cjb@laptop.org>2011-03-15 13:48:53 -0400
commitaadb9f4110096876c6f03073415439f76f0c61ca (patch)
tree8e680a68fc3fc83c80627ab6974421d5b3f5c997
parentdd6c4b9807581b37bf68ba3cd160c6859f070d39 (diff)
downloadblackbird-op-linux-aadb9f4110096876c6f03073415439f76f0c61ca.tar.gz
blackbird-op-linux-aadb9f4110096876c6f03073415439f76f0c61ca.zip
mmc: dw_mmc: Enable low-power mode for the card clock.
Setting this bit in the clock enable register will stop the clock when the card is in the IDLE state. Signed-off-by: Will Newton <will.newton@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org>
-rw-r--r--drivers/mmc/host/dw_mmc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index c01cb8642fb5..cd6d8212dacc 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -562,7 +562,8 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot)
SDMMC_CMD_UPD_CLK | SDMMC_CMD_PRV_DAT_WAIT, 0);
/* enable clock */
- mci_writel(host, CLKENA, SDMMC_CLKEN_ENABLE);
+ mci_writel(host, CLKENA, SDMMC_CLKEN_ENABLE |
+ SDMMC_CLKEN_LOW_PWR);
/* inform CIU */
mci_send_cmd(slot,
OpenPOWER on IntegriCloud