sh: generic push-switch framework.

This adds support for a generic push switch framework. Adaptable for
various switches, including GPIO switches and the push switches commonly
found on Renesas debug boards.

This allows switch states to be trivially reported through sysfs.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index d62183f355a3..a03f155571c8 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -473,6 +473,8 @@ config HEARTBEAT
           behavior is platform-dependent, but normally the flash frequency is
           a hyperbolic function of the 5-minute load average.
 
+source "arch/sh/drivers/Kconfig"
+
 endmenu
 
 config ISA_DMA_API