add new argument for all boards with built-in display

ports/atmel-samd/boards/hallowing_m0_express/board.c

@@ -111,7 +111,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // not SH1107
+        false, // not SH1107
+        50000); // backlight pwm frequency
 }
 
 bool board_requests_safe_mode(void) {

ports/atmel-samd/boards/hallowing_m4_express/board.c

@@ -91,7 +91,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // not SH1107
+        false, // not SH1107
+        50000); // backlight pwm frequency
 }
 
 bool board_requests_safe_mode(void) {

ports/atmel-samd/boards/monster_m4sk/board.c

@@ -92,7 +92,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // SH1107_addressing
+        false, // SH1107_addressing
+        50000); // backlight pwm frequency
 }
 
 bool board_requests_safe_mode(void) {

ports/atmel-samd/boards/pewpew_lcd/board.c

@@ -90,7 +90,8 @@ void board_init(void) {
         true, // auto_refresh
         2, // native_frames_per_second
         true, // backlight_on_high
-        true); // SH1107_addressing
+        true, // SH1107_addressing
+        50000); // backlight pwm frequency
 }
 
 bool board_requests_safe_mode(void) {

ports/atmel-samd/boards/pewpew_m4/board.c

@@ -144,7 +144,8 @@ void board_init(void) {
         false, // auto_refresh
         20, // native_frames_per_second
         true, // backlight_on_high
-        false); // SH1107_addressing
+        false, // SH1107_addressing
+        50000); // backlight pwm frequency
 }
 
 bool board_requests_safe_mode(void) {

ports/atmel-samd/boards/pybadge/board.c

@@ -114,7 +114,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // SH1107_addressing
+        false, // SH1107_addressing
+        50000); // backlight pwm frequency
 }
 
 bool board_requests_safe_mode(void) {

ports/atmel-samd/boards/pygamer/board.c

@@ -114,7 +114,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // SH1107_addressing
+        false, // SH1107_addressing
+        50000); // backlight pwm frequency
 }
 
 bool board_requests_safe_mode(void) {

ports/atmel-samd/boards/pyportal/board.c

@@ -101,7 +101,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // SH1107_addressing
+        false, // SH1107_addressing
+        50000); // backlight pwm frequency
 }
 
 bool board_requests_safe_mode(void) {

ports/atmel-samd/boards/seeeduino_wio_terminal/board.c

@@ -109,7 +109,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // SH1107_addressing
+        false, // SH1107_addressing
+        50000); // backlight pwm frequency
 
     // Enabling the Power of the 40-pin at the back
     CTR_5V.base.type = &digitalio_digitalinout_type;

ports/atmel-samd/boards/ugame10/board.c

@@ -111,7 +111,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // SH1107_addressing
+        false, // SH1107_addressing
+        50000); // backlight pwm frequency
 }
 
 bool board_requests_safe_mode(void) {

ports/espressif/boards/adafruit_esp32s2_camera/board.c

@@ -96,7 +96,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // not SH1107
+        false, // not SH1107
+        50000); // backlight pwm frequency
 }
 
 bool board_requests_safe_mode(void) {

ports/espressif/boards/adafruit_feather_esp32s2_tft/board.c

@@ -125,7 +125,8 @@ void board_init(void) {
         true,           // auto_refresh
         60,             // native_frames_per_second
         true,           // backlight_on_high
-        false           // SH1107_addressing
+        false,          // SH1107_addressing
+        50000           // backlight pwm frequency
         );
 
     common_hal_never_reset_pin(&pin_GPIO45); // backlight pin

ports/espressif/boards/adafruit_feather_esp32s2_tftback_nopsram/board.c

@@ -101,7 +101,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // not SH1107
+        false, // not SH1107
+        50000); // backlight pwm frequency
         */
 }
 

ports/espressif/boards/adafruit_funhouse/board.c

@@ -104,7 +104,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // not SH1107
+        false, // not SH1107
+        50000); // backlight pwm frequency
 }
 
 bool board_requests_safe_mode(void) {

ports/espressif/boards/espressif_esp32s3_box/board.c

@@ -87,7 +87,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // SH1107_addressing
+        false, // SH1107_addressing
+        50000); // backlight pwm frequency
 
     // Debug UART
     #ifdef DEBUG

ports/espressif/boards/espressif_esp32s3_usb_otg_n8/board.c

@@ -115,7 +115,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // SH1107_addressing
+        false, // SH1107_addressing
+        50000); // backlight pwm frequency
 }
 
 bool espressif_board_reset_pin_number(gpio_num_t pin_number) {

ports/espressif/boards/hexky_s2/board.c

@@ -119,7 +119,8 @@ void board_init(void) {
         true,           // auto_refresh
         60,             // native_frames_per_second
         true,           // backlight_on_high
-        false           // SH1107_addressing
+        false,          // SH1107_addressing
+        50000           // backlight pwm frequency
         );
 
     common_hal_never_reset_pin(&pin_GPIO45); // backlight pin

ports/espressif/boards/hiibot_iots2/board.c

@@ -124,7 +124,8 @@ static void display_init(void) {
         true,           // auto_refresh
         60,             // native_frames_per_second
         true,           // backlight_on_high
-        false           // SH1107_addressing
+        false,          // SH1107_addressing
+        50000           // backlight pwm frequency
         );
 
     common_hal_never_reset_pin(&pin_GPIO38); // backlight pin

ports/espressif/boards/lilygo_ttgo_t8_s2_st7789/board.c

@@ -124,7 +124,8 @@ static void display_init(void) {
         true,           // auto_refresh
         60,             // native_frames_per_second
         true,           // backlight_on_high
-        false           // SH1107_addressing
+        false,          // SH1107_addressing
+        50000           // backlight pwm frequency
         );
 
     common_hal_never_reset_pin(&pin_GPIO33); // backlight pin

ports/espressif/boards/morpheans_morphesp-240/board.c

@@ -205,7 +205,8 @@ void board_init(void) {
         true,           // auto_refresh
         60,             // native_frames_per_second
         false,          // backlight_on_high
-        false           // SH1107_addressing
+        false,          // SH1107_addressing
+        50000           // backlight pwm frequency
         );
 }
 

ports/nrf/boards/clue_nrf52840_express/board.c

@@ -91,7 +91,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // not SH1107
+        false, // not SH1107
+        50000); // backlight pwm frequency
 }
 
 bool board_requests_safe_mode(void) {

ports/nrf/boards/hiibot_bluefi/board.c

@@ -92,7 +92,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // SH1107_addressing
+        false, // SH1107_addressing
+        50000); // backlight pwm frequency
 }
 
 bool board_requests_safe_mode(void) {

ports/nrf/boards/makerdiary_nrf52840_m2_devkit/board.c

@@ -92,7 +92,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // SH1107_addressing
+        false, // SH1107_addressing
+        50000); // backlight pwm frequency
 }
 
 bool board_requests_safe_mode(void) {

ports/nrf/boards/ohs2020_badge/board.c

@@ -91,7 +91,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         false, // backlight_on_high
-        false); // SH1107_addressing
+        false, // SH1107_addressing
+        50000); // backlight pwm frequency
 }
 
 bool board_requests_safe_mode(void) {

ports/raspberrypi/boards/adafruit_macropad_rp2040/board.c

@@ -103,7 +103,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        true); // SH1107_addressing
+        true, // SH1107_addressing
+        50000); // backlight pwm frequency
 }
 
 bool board_requests_safe_mode(void) {

ports/raspberrypi/boards/pimoroni_picosystem/board.c

@@ -108,7 +108,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // SH1107_addressing
+        false, // SH1107_addressing
+        50000); // backlight pwm frequency
 }
 
 void board_deinit(void) {

ports/stm/boards/meowbit_v121/board.c

@@ -111,7 +111,8 @@ void board_init(void) {
         true, // auto_refresh
         60, // native_frames_per_second
         true, // backlight_on_high
-        false); // SH1107_addressing
+        false, // SH1107_addressing
+        50000); // backlight pwm frequency
 
     board_buzz_obj.base.type = &audiopwmio_pwmaudioout_type;
     common_hal_audiopwmio_pwmaudioout_construct(&board_buzz_obj,