Fix build with filter to do OR

Author: tannewt

ports/atmel-samd/Makefile

@@ -322,11 +322,9 @@ SRC_C += \
 	reset.c \
 	timer_handler.c \
 
-ifeq ($(CIRCUITPY_PWMIO),1)
-SRC_C += shared_timers.c
-endif
-
-ifeq ($(CIRCUITPY_AUDIOIO),1)
+# This is an OR because it filters to any 1s and then checks to see if it is not
+# empty.
+ifneq (,$(filter 1,$(CIRCUITPY_PWMIO) $(CIRCUITPY_AUDIOIO) $(CIRCUITPY_RGBMATRIX)))
 SRC_C += shared_timers.c
 endif
 

ports/atmel-samd/common-hal/pwmio/PWMOut.c

@@ -31,15 +31,15 @@
 #include "common-hal/pwmio/PWMOut.h"
 #include "shared-bindings/pwmio/PWMOut.h"
 #include "shared-bindings/microcontroller/Processor.h"
+#include "shared_timers.h"
 #include "timer_handler.h"
 
 #include "atmel_start_pins.h"
 #include "hal/utils/include/utils_repeat_macro.h"
+#include "samd/pins.h"
 #include "samd/timers.h"
 #include "supervisor/shared/translate.h"
 
-#include "samd/pins.h"
-
 #undef ENABLE
 
 #define _TCC_SIZE(unused, n) TCC##n##_SIZE,
@@ -77,16 +77,11 @@ void pwmout_reset(void) {
         target_tcc_frequencies[i] = 0;
         tcc_refcount[i] = 0;
     }
-    Tcc *tccs[TCC_INST_NUM] = TCC_INSTS;
     for (int i = 0; i < TCC_INST_NUM; i++) {
         if (!timer_ok_to_reset(i, false)) {
             continue;
         }
-        uint8_t mask = 0xff;
-        for (uint8_t j = 0; j < tcc_cc_num[i]; j++) {
-            mask <<= 1;
-        }
-        tcc_channels[i] = mask;
+        tcc_channels[i] = 0xff << tcc_cc_num[i];
     }
 }
 

ports/atmel-samd/common-hal/rgbmatrix/RGBMatrix.c

@@ -29,6 +29,7 @@
 #include "common-hal/rgbmatrix/RGBMatrix.h"
 
 #include "samd/timers.h"
+#include "shared_timers.h"
 #include "timer_handler.h"
 
 void *common_hal_rgbmatrix_timer_allocate(rgbmatrix_rgbmatrix_obj_t *self) {