i2c: gpio: add fault injector
Add fault injection capabilities to the i2c-gpio driver. When connected
to another I2C bus, it can create unusual states which the other I2C bus
master driver needs to handle. Only for debugging!
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 009345d..a9805c7 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -603,6 +603,14 @@
This is a very simple bitbanging I2C driver utilizing the
arch-neutral GPIO API to control the SCL and SDA lines.
+config I2C_GPIO_FAULT_INJECTOR
+ bool "GPIO-based fault injector"
+ depends on I2C_GPIO
+ help
+ This adds some functionality to the i2c-gpio driver which can inject
+ faults to an I2C bus, so another bus master can be stress-tested.
+ This is for debugging. If unsure, say 'no'.
+
config I2C_HIGHLANDER
tristate "Highlander FPGA SMBus interface"
depends on SH_HIGHLANDER