From: Jaehoon Chung <jh80.chung@samsung.com>
To: "linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>
Cc: "'Chris Ball'" <cjb@laptop.org>,
"Heiko Stübner" <heiko@sntech.de>,
"Kyungmin Park" <kyungmin.park@samsung.com>
Subject: [PATCH 1/4] mmc: sdhci-s3c: fix the wrong register value, when clock is disabled
Date: Tue, 25 Jun 2013 10:20:57 +0900 [thread overview]
Message-ID: <51C8F079.8090009@samsung.com> (raw)
When use the QUIRK_NONSTANDARD_CLOCK, then never set to 0 at clock control register.
This patch is fixed this problem.
([PATCHv2] mmc: sdhci-s3c: fix teh wrong register value, when clock is disabled)
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
drivers/mmc/host/sdhci-s3c.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 926aaf6..ce71f32 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -297,8 +297,11 @@ static void sdhci_cmu_set_clock(struct sdhci_host *host, unsigned int clock)
u16 clk = 0;
/* don't bother if the clock is going off */
- if (clock == 0)
+ if (clock == 0) {
+ sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL);
+ host->clock = clock;
return;
+ }
sdhci_s3c_set_clock(host, clock);
--
1.7.9.5
reply other threads:[~2013-06-25 1:20 UTC|newest]
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