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| author | Aisheng Dong | 2014-08-27 09:26:27 +0200 |
|---|---|---|
| committer | Ulf Hansson | 2014-09-09 13:59:20 +0200 |
| commit | a6ff5aeb9b31f7b71a8566f8e130ad66bd103d20 (patch) | |
| tree | 7dfd803c2960ead2b18bccceaec60c41757aa83b /drivers/mmc/host/sdhci.h | |
| parent | mmc: tmio-mmc: Add support for SDHI on new R-Car Gen2 SoCs (diff) | |
| download | kernel-qcow2-linux-a6ff5aeb9b31f7b71a8566f8e130ad66bd103d20.tar.gz kernel-qcow2-linux-a6ff5aeb9b31f7b71a8566f8e130ad66bd103d20.tar.xz kernel-qcow2-linux-a6ff5aeb9b31f7b71a8566f8e130ad66bd103d20.zip | |
mmc: sdhci: add platform get_max_timeout_count hook
Currently the max timeout count is hardcode to 1 << 27 for calcuate
the max_busy_timeout, however, for some platforms the max timeout
count may not be 1 << 27, e.g. i.MX uSDHC is 1 << 28.
Thus 1 << 27 is not correct for such platform.
It is also possible that other platforms may have different values.
To be flexible, we add a get_max_timeout_count hook to get the correct
maximum timeout value for these platforms.
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/sdhci.h')
| -rw-r--r-- | drivers/mmc/host/sdhci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 4a5cd5e3fa3e..b13050968946 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -281,6 +281,7 @@ struct sdhci_ops { unsigned int (*get_max_clock)(struct sdhci_host *host); unsigned int (*get_min_clock)(struct sdhci_host *host); unsigned int (*get_timeout_clock)(struct sdhci_host *host); + unsigned int (*get_max_timeout_count)(struct sdhci_host *host); void (*set_bus_width)(struct sdhci_host *host, int width); void (*platform_send_init_74_clocks)(struct sdhci_host *host, u8 power_mode); |