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| author | Adrian Hunter <adrian.hunter@nokia.com> | 2010-10-11 12:43:50 +0300 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2010-10-23 21:11:16 +0800 |
| commit | 49e3b5a44f8abd33c8693edc575c6d06a210d778 (patch) | |
| tree | a68dfc6613a17d1c0eb68d87d63a3562eea26a80 /include/linux/mmc/host.h | |
| parent | 0f8d8ea64ec7c77ca5beb59534d386fe0235961a (diff) | |
| download | lwn-49e3b5a44f8abd33c8693edc575c6d06a210d778.tar.gz lwn-49e3b5a44f8abd33c8693edc575c6d06a210d778.zip | |
mmc: refine DDR support
One flaw with DDR support is that MMC core does not inform the driver
which DDR mode it has selected. This patch expands the ios->ddr flag
to do that.
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'include/linux/mmc/host.h')
| -rw-r--r-- | include/linux/mmc/host.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index c4fb1c5efc44..69ee1ebe4302 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -54,7 +54,8 @@ struct mmc_ios { unsigned char ddr; /* dual data rate used */ #define MMC_SDR_MODE 0 -#define MMC_DDR_MODE 1 +#define MMC_1_2V_DDR_MODE 1 +#define MMC_1_8V_DDR_MODE 2 }; struct mmc_host_ops { |