Kconfig: define missing symbol SPI and make DM_SPI depend on it

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 7ae2727..3ce5a6b 100644 (file)
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -1,6 +1,9 @@
+config SPI
+       bool "Enable SPI bus support"
+
 config DM_SPI
        bool "Enable Driver Model for SPI drivers"
-       depends on DM
+       depends on DM && SPI
        help
          Enable driver model for SPI. The SPI slave interface
          (spi_setup_slave(), spi_xfer(), etc.) is then implemented by