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-rw-r--r--include/linux/mmc/host.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 2a5fe75dd082..2709c94d9d86 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -147,6 +147,9 @@ struct mmc_host_ops {
/* Prepare HS400 target operating frequency depending host driver */
int (*prepare_hs400_tuning)(struct mmc_host *host, struct mmc_ios *ios);
+ /* Prepare switch to DDR during the HS400 init sequence */
+ int (*hs400_prepare_ddr)(struct mmc_host *host);
+
/* Prepare for switching from HS400 to HS200 */
void (*hs400_downgrade)(struct mmc_host *host);