mmc: sdhci-s3c: fix the wrong register value, when clock is disabled

PATCH Superseded Jaehoon Chung 1 participant 1 message Jun 25, 2013

Subsystems (3)

MMC, SD and SDIO Secure digital host controller interface (SDHCI) driver Secure digital host controller interface (SDHCI) Samsung driver

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Jaehoon Chung

author maintainer

2013-06-25 01:20 UTC #0 lore raw

PATCH 1/4 mmc: sdhci-s3c: fix the wrong register value, when clock is disabled

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 <[email protected]>

Signed-off-by Kyungmin Park <[email protected]>

---
 drivers/mmc/host/sdhci-s3c.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

drivers/mmc/host/sdhci-s3c.c +4 -1

index 926aaf6..ce71f32 100644
@@ -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);

Signature · 1 line

1.7.9.5