mfd: Add ChromeOS EC SPI driver

This uses a SPI bus to talk to the ChromeOS EC. The protocol
is defined by the EC and is fairly simple, with a length byte,
checksum, command byte and version byte (to permit easy creation
of new commands).

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 895257bec849..f62a583b5c85 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -10,6 +10,7 @@ obj-$(CONFIG_MFD_SM501)		+= sm501.o
 obj-$(CONFIG_MFD_ASIC3)         += asic3.o tmio_core.o
 obj-$(CONFIG_MFD_CROS_EC)       += cros_ec.o
 obj-$(CONFIG_MFD_CROS_EC_I2C)   += cros_ec_i2c.o
+obj-$(CONFIG_MFD_CROS_EC_SPI)   += cros_ec_spi.o
 
 rtsx_pci-objs                   := rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o
 obj-$(CONFIG_MFD_RTSX_PCI)      += rtsx_pci.o