test: pinmux: Add test for pin muxing
This extends the pinctrl-sandbox driver to support pin muxing, and adds a
test for that behaviour. The test is done in C and not python (like the
existing tests for the pinctrl uclass) because it needs to call
pinctrl_select_state. Another option could be to add a command that
invokes pinctrl_select_state and then test everything in
test/py/tests/test_pinmux.py.
The pinctrl-sandbox driver now mimics the way that many pinmux devices
work. There are two groups of pins which are muxed together, as well as
four pins which are muxed individually. I have tried to test all normal
paths. However, very few error cases are explicitly checked for.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/test/dm/Makefile b/test/dm/Makefile
index 70ba1b6..e2b0798 100644
--- a/test/dm/Makefile
+++ b/test/dm/Makefile
@@ -81,4 +81,7 @@
obj-$(CONFIG_SIMPLE_PM_BUS) += simple-pm-bus.o
obj-$(CONFIG_RESET_SYSCON) += syscon-reset.o
obj-$(CONFIG_SCMI_FIRMWARE) += scmi.o
+ifneq ($(CONFIG_PINMUX),)
+obj-$(CONFIG_PINCONF) += pinmux.o
+endif
endif