diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2015-02-06 15:12:52 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2015-06-01 10:07:11 +0300 |
| commit | b4f30a174e1fda8118eda038b5d8d5260db36ad5 (patch) | |
| tree | dc77366f106bc5b15aa836518dc5cbfca855b558 /include/linux/mmc | |
| parent | 75e8a2288c4fabd6c2f752e8fd3bf7f60be7d3a4 (diff) | |
| download | linux-b4f30a174e1fda8118eda038b5d8d5260db36ad5.tar.xz | |
mmc: core: Allow card drive strength to be different to host
Initialization of UHS-I modes for SD and SDIO cards
employs a callback to allow the host driver to
choose a drive strength value. Currently that
assumes the card drive strength and host driver
type must be the same value. Change to let the
callback make that decision and return both the
card drive strength and host driver type.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'include/linux/mmc')
| -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 433eccb50838..da33d18c66c8 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -132,7 +132,8 @@ struct mmc_host_ops { /* Prepare HS400 target operating frequency depending host driver */ int (*prepare_hs400_tuning)(struct mmc_host *host, struct mmc_ios *ios); - int (*select_drive_strength)(unsigned int max_dtr, int host_drv, int card_drv); + int (*select_drive_strength)(unsigned int max_dtr, int host_drv, + int card_drv, int *drv_type); void (*hw_reset)(struct mmc_host *host); void (*card_event)(struct mmc_host *host); |