1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 4e54b5b01295..94b45476893e 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -39,6 +39,16 @@ config MFD_CROS_EC_I2C
           a checksum. Failing accesses will be retried three times to
           improve reliability.
 
+config MFD_CROS_EC_SPI
+        tristate "ChromeOS Embedded Controller (SPI)"
+        depends on MFD_CROS_EC && SPI
+
+        ---help---
+          If you say Y here, you get support for talking to the ChromeOS EC
+          through a SPI bus, using a byte-level protocol. Since the EC's
+          response time cannot be guaranteed, we support ignoring
+          'pre-amble' bytes before the response actually starts.
+
 config MFD_88PM800
         tristate "Support Marvell 88PM800"
         depends on I2C=y && GENERIC_HARDIRQS