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| author | Hyuk Lee <hyuk1.lee@samsung.com> | 2010-08-10 18:01:55 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-11 08:59:05 -0700 |
| commit | 3fe42e077f65351503f5004031549db330bb105e (patch) | |
| tree | f05f0090d72573d9092d2f784a707819eb760fce | |
| parent | f3584e5e6fd7abda4ef4a7aec9acd9d46387b8ab (diff) | |
| download | linux-3.10-3fe42e077f65351503f5004031549db330bb105e.tar.gz linux-3.10-3fe42e077f65351503f5004031549db330bb105e.tar.bz2 linux-3.10-3fe42e077f65351503f5004031549db330bb105e.zip | |
sdhci-s3c: add SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK quirk
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@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/mmc/host/sdhci-s3c.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index ad30f074ee1..d7058eee95f 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -110,11 +110,6 @@ static unsigned int sdhci_s3c_get_max_clk(struct sdhci_host *host) 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 sdhci_host *host, unsigned int clock) 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 sdhci_host *host, unsigned int clock) 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(struct platform_device *pdev) 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"); |