From: Hyuk Lee <hyuk1.lee@xxxxxxxxxxx>
On Samsung's SDMMC hosts the timeout clock is derivied from the SD Clock
which is set dynamically. So checked SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK
quirk and removed 'sdhci_s3c_get_timeout_clk' callback which doesn't need
any more.
Signed-off-by: Hyuk Lee <hyuk1.lee@xxxxxxxxxxx>
Signed-off-by: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
Cc: Ben Dooks <ben-linux@xxxxxxxxx>
Cc: <linux-mmc@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/mmc/host/sdhci-s3c.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff -puN drivers/mmc/host/sdhci-s3c.c~sdhci-s3c-add-sdhci_quirk_data_timeout_uses_sdclk-quirk drivers/mmc/host/sdhci-s3c.c
--- a/drivers/mmc/host/sdhci-s3c.c~sdhci-s3c-add-sdhci_quirk_data_timeout_uses_sdclk-quirk
+++ a/drivers/mmc/host/sdhci-s3c.c
@@ -110,11 +110,6 @@ static unsigned int sdhci_s3c_get_max_cl
return max;
}
-static unsigned int sdhci_s3c_get_timeout_clk(struct sdhci_host *host)
-{
- return sdhci_s3c_get_max_clk(host) / 1000000;
-}
-
/**
* sdhci_s3c_consider_clock - consider one the bus clocks for current setting
* @ourhost: Our SDHCI instance.
@@ -188,7 +183,6 @@ static void sdhci_s3c_set_clock(struct s
ourhost->cur_clk = best_src;
host->max_clk = clk_get_rate(clk);
- host->timeout_clk = sdhci_s3c_get_timeout_clk(host);
ctrl = readl(host->ioaddr + S3C_SDHCI_CONTROL2);
ctrl &= ~S3C_SDHCI_CTRL2_SELBASECLK_MASK;
@@ -211,7 +205,6 @@ static void sdhci_s3c_set_clock(struct s
static struct sdhci_ops sdhci_s3c_ops = {
.get_max_clock = sdhci_s3c_get_max_clk,
- .get_timeout_clock = sdhci_s3c_get_timeout_clk,
.set_clock = sdhci_s3c_set_clock,
};
@@ -335,6 +328,9 @@ static int __devinit sdhci_s3c_probe(str
host->quirks |= (SDHCI_QUIRK_32BIT_DMA_ADDR |
SDHCI_QUIRK_32BIT_DMA_SIZE);
+ /* HSMMC on Samsung SoCs uses SDCLK as timeout clock */
+ host->quirks |= SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK;
+
ret = sdhci_add_host(host);
if (ret) {
dev_err(dev, "sdhci_add_host() failed\n");
_
--
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