imx233: add pinctrl debug code to track pin uses

Past development has proved that one can mistakely use
the same pin for two uses without noticing. Since this
causes extremely hard to find bugs, the infrastructure
will allow to register pin uses and panic when a conflict
is detected. The pinctrl debug now shows the pin uses
when its support is compiled in.

Change-Id: Idb2d5235ce09207d77aa474d6f158e72b933761a

1 files changed, 1 insertions, 0 deletions

diff --git a/firmware/target/arm/imx233/sd-imx233.c b/firmware/target/arm/imx233/sd-imx233.c
index b68950b9e8..1e9d001bbd 100644
--- a/firmware/target/arm/imx233/sd-imx233.c
+++ b/firmware/target/arm/imx233/sd-imx233.c
@@ -64,6 +64,7 @@ void sd_power(bool on)
 {
     #ifdef SANSA_FUZEPLUS
     /* The Fuze+ uses pin B0P8 for whatever reason, power ? */
+    imx233_pinctrl_acquire_pin(0, 8, "sd power");
     imx233_set_pin_function(0, 8, PINCTRL_FUNCTION_GPIO);
     imx233_enable_gpio_output(0, 8, true);
     imx233_set_gpio_output(0, 8, !on);