diff options
| author |   Anton Vorontsov <avorontsov@ru.mvista.com> | 2009-09-22 16:45:08 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-23 07:39:36 -0700 |
| commit | e9510176ff728135383f0cdfc9c90cfe57f9e162 (patch) | |
| tree | 59f5e29d59c98e21c9a1ec26e6dac173adeb71d3 /drivers/mmc | |
| parent | sdio: add CD disable support (diff) | |
| download | linux-dev-e9510176ff728135383f0cdfc9c90cfe57f9e162.tar.xz linux-dev-e9510176ff728135383f0cdfc9c90cfe57f9e162.zip | |
sdhci: be more strict with get_min_clock() usage
get_min_clock() makes sense only with NONSTANDARD_CLOCK quirk and when
set_clock() callback is specified.
The patch should cause no functional changes, it just makes the code
self-documented and avoids any possible misuse of get_min_clock().
Suggested-by: Pierre Ossman <pierre@ossman.eu>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Ian Molton <ian@mnementh.co.uk>
Cc: Matt Fleming <matt@console-pimps.org>
Cc: Philip Langdale <philipl@overt.org>
Cc: Pierre Ossman <pierre@ossman.eu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index fc96f8cb9c0b..7f7f45b4b07b 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1772,7 +1772,8 @@ int sdhci_add_host(struct sdhci_host *host) * Set host parameters. */ mmc->ops = &sdhci_ops; - if (host->ops->get_min_clock) + if (host->quirks & SDHCI_QUIRK_NONSTANDARD_CLOCK && + host->ops->set_clock && host->ops->get_min_clock) mmc->f_min = host->ops->get_min_clock(host); else mmc->f_min = host->max_clk / 256; |