From: shawn.guo@linaro.org (Shawn Guo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 2/4] mmc: sdhci-esdhc-imx: SDHCI_CARD_PRESENT does not get cleared
Date: Tue, 21 Jun 2011 22:41:49 +0800 [thread overview]
Message-ID: <1308667311-1855-3-git-send-email-shawn.guo@linaro.org> (raw)
In-Reply-To: <1308667311-1855-1-git-send-email-shawn.guo@linaro.org>
The function esdhc_readl_le intends to clear bit SDHCI_CARD_PRESENT,
when the card detect gpio tells there is no card. But it does not
clear the bit actually. The patch gives a fix on that.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: <stable@kernel.org>
---
drivers/mmc/host/sdhci-esdhc-imx.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 248b8e5..94097c0 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -84,7 +84,7 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg)
if (boarddata && gpio_is_valid(boarddata->cd_gpio)
&& gpio_get_value(boarddata->cd_gpio))
/* no card, if a valid gpio says so... */
- val &= SDHCI_CARD_PRESENT;
+ val &= ~SDHCI_CARD_PRESENT;
else
/* ... in all other cases assume card is present */
val |= SDHCI_CARD_PRESENT;
--
1.7.4.1
next prev parent reply other threads:[~2011-06-21 14:41 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-21 14:41 [PATCH v4 0/4] Extend sdhci-esdhc-imx card_detect and write_protect support for mx5 Shawn Guo
2011-06-21 14:41 ` [PATCH v4 1/4] mmc: sdhci: fix interrupt storm from card detection Shawn Guo
2011-06-21 16:05 ` Philip Rakity
2011-06-22 4:40 ` Shawn Guo
2011-06-22 4:41 ` Philip Rakity
2011-06-21 14:41 ` Shawn Guo [this message]
2011-06-21 14:41 ` [PATCH v4 3/4] mmc: sdhci-esdhc-imx: remove "WP" from flag ESDHC_FLAG_GPIO_FOR_CD_WP Shawn Guo
2011-06-21 14:41 ` [PATCH v4 4/4] mmc: sdhci-esdhc-imx: extend card_detect and write_protect support for mx5 Shawn Guo
2011-06-27 1:38 ` [PATCH v4 0/4] Extend sdhci-esdhc-imx " Shawn Guo
2011-06-27 3:47 ` Chris Ball
2011-06-27 4:23 ` Shawn Guo
2011-07-01 23:06 ` Chris Ball
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