Enable protomatter on RP2040 builds

Also found a race condition between timer_disable and redraw, which
would happen if I debugger-paused inside common_hal_rgbmatrix_timer_disable
or put a delay or print inside it.  That's what pausing inside reconstruct
fixes.

So that the "right timer" can be chosen, `timer_allocate` now gets the `self`
pointer.  It's guaranteed at this point that the pin information is accurate,
so you can e.g., find a PWM unit related to the pins themselves.
This required touching each port to add the parameter even though it's
unused everywhere but raspberrypi.

2 files changed, 4 insertions, 2 deletions

diff --git a/ports/nrf/common-hal/rgbmatrix/RGBMatrix.c b/ports/nrf/common-hal/rgbmatrix/RGBMatrix.c
index e13b761ab..d8289f56f 100644
--- a/ports/nrf/common-hal/rgbmatrix/RGBMatrix.c
+++ b/ports/nrf/common-hal/rgbmatrix/RGBMatrix.c
@@ -32,7 +32,7 @@
 
 extern void _PM_IRQ_HANDLER(void);
 
-void *common_hal_rgbmatrix_timer_allocate() {
+void *common_hal_rgbmatrix_timer_allocate(rgbmatrix_rgbmatrix_obj_t *self) {
     nrfx_timer_t *timer = nrf_peripherals_allocate_timer_or_throw();
     nrf_peripherals_timer_never_reset(timer);
     return timer->p_reg;
diff --git a/ports/nrf/common-hal/rgbmatrix/RGBMatrix.h b/ports/nrf/common-hal/rgbmatrix/RGBMatrix.h
index 24d86f177..6cf7354fc 100644
--- a/ports/nrf/common-hal/rgbmatrix/RGBMatrix.h
+++ b/ports/nrf/common-hal/rgbmatrix/RGBMatrix.h
@@ -27,7 +27,9 @@
 #ifndef MICROPY_INCLUDED_NRF_COMMON_HAL_RGBMATRIX_RGBMATRIX_H
 #define MICROPY_INCLUDED_NRF_COMMON_HAL_RGBMATRIX_RGBMATRIX_H
 
-void *common_hal_rgbmatrix_timer_allocate(void);
+#include "shared-module/rgbmatrix/RGBMatrix.h"
+
+void *common_hal_rgbmatrix_timer_allocate(rgbmatrix_rgbmatrix_obj_t *self);
 void common_hal_rgbmatrix_timer_enable(void*);
 void common_hal_rgbmatrix_timer_disable(void*);
 void common_hal_rgbmatrix_timer_free(void*);