mmc: mmcblk: Add support for deferred SD bus resume
Signed-off-by: San Mehat <san@google.com>
mmc: card: Add MMC_BLOCK_DEFERRED_RESUME option to Kconfig
Signed-off-by: San Mehat <san@google.com>
diff --git a/drivers/mmc/card/Kconfig b/drivers/mmc/card/Kconfig
index 3b1f783..ebb4afe 100644
--- a/drivers/mmc/card/Kconfig
+++ b/drivers/mmc/card/Kconfig
@@ -50,6 +50,15 @@
If unsure, say Y here.
+config MMC_BLOCK_DEFERRED_RESUME
+ bool "Deferr MMC layer resume until I/O is requested"
+ depends on MMC_BLOCK
+ default n
+ help
+ Say Y here to enable deferred MMC resume until I/O
+ is requested. This will reduce overall resume latency and
+ save power when theres an SD card inserted but not being used.
+
config SDIO_UART
tristate "SDIO UART/GPS class support"
help