SPI: tle620x power switch driver

Add support for the Infineon TLE62x0 series of low-side driver chips, such
as the TLE6220 or TLE6230.  These can be viewed as output GPIOs specialized
for power switching applications.  The driver provides a userspace
interface to those GPIOs, and to the switch status they provide.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 8ce16a0b8a50..a49270eae660 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -198,6 +198,15 @@ config SPI_SPIDEV
           Note that this application programming interface is EXPERIMENTAL
           and hence SUBJECT TO CHANGE WITHOUT NOTICE while it stabilizes.
 
+config SPI_TLE62X0
+        tristate "Infineon TLE62X0 (for power switching)"
+        depends on SPI_MASTER && SYSFS
+        help
+          SPI driver for Infineon TLE62X0 series line driver chips,
+          such as the TLE6220, TLE6230 and TLE6240.  This provides a
+          sysfs interface, with each line presented as a kind of GPIO
+          exposing both switch control and diagnostic feedback.
+
 #
 # Add new SPI protocol masters in alphabetical order above this line
 #