LED drivers: refactor page selection (#22518)

drivers/led/issi/is31fl3218-simple.h

@@ -43,6 +43,8 @@ extern const is31fl3218_led_t PROGMEM g_is31fl3218_leds[IS31FL3218_LED_COUNT];
 
 void is31fl3218_init(void);
 
+void is31fl3218_write_register(uint8_t reg, uint8_t data);
+
 void is31fl3218_set_value(int index, uint8_t value);
 
 void is31fl3218_set_value_all(uint8_t value);

drivers/led/issi/is31fl3218.h

@@ -45,6 +45,8 @@ extern const is31fl3218_led_t PROGMEM g_is31fl3218_leds[IS31FL3218_LED_COUNT];
 
 void is31fl3218_init(void);
 
+void is31fl3218_write_register(uint8_t reg, uint8_t data);
+
 void is31fl3218_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
 
 void is31fl3218_set_color_all(uint8_t red, uint8_t green, uint8_t blue);

drivers/led/issi/is31fl3731-simple.c

@@ -62,8 +62,12 @@ void is31fl3731_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
 #endif
 }
 
+void is31fl3731_select_page(uint8_t addr, uint8_t page) {
+    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, page);
+}
+
 void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
-    // assumes bank is already selected
+    // assumes page 0 is already selected
 
     // transmit PWM registers in 9 transfers of 16 bytes
     // g_twi_transfer_buffer[] is 20 bytes
@@ -123,8 +127,7 @@ void is31fl3731_init(uint8_t addr) {
     // then set up the mode and other settings, clear the PWM registers,
     // then disable software shutdown.
 
-    // select "function register" bank
-    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FUNCTION);
+    is31fl3731_select_page(addr, IS31FL3731_COMMAND_FUNCTION);
 
     // enable software shutdown
     is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_SHUTDOWN, 0x00);
@@ -142,8 +145,7 @@ void is31fl3731_init(uint8_t addr) {
     // audio sync off
     is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_AUDIO_SYNC, 0x00);
 
-    // select bank 0
-    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FRAME_1);
+    is31fl3731_select_page(addr, IS31FL3731_COMMAND_FRAME_1);
 
     // turn off all LEDs in the LED control register
     for (int i = 0; i < IS31FL3731_LED_CONTROL_REGISTER_COUNT; i++) {
@@ -160,16 +162,15 @@ void is31fl3731_init(uint8_t addr) {
         is31fl3731_write_register(addr, i, 0x00);
     }
 
-    // select "function register" bank
-    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FUNCTION);
+    is31fl3731_select_page(addr, IS31FL3731_COMMAND_FUNCTION);
 
     // disable software shutdown
     is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_SHUTDOWN, 0x01);
 
-    // select bank 0 and leave it selected.
-    // most usage after initialization is just writing PWM buffers in bank 0
+    // select page 0 and leave it selected.
+    // most usage after initialization is just writing PWM buffers in page 0
     // as there's not much point in double-buffering
-    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FRAME_1);
+    is31fl3731_select_page(addr, IS31FL3731_COMMAND_FRAME_1);
 }
 
 void is31fl3731_set_value(int index, uint8_t value) {

drivers/led/issi/is31fl3731-simple.h

@@ -103,6 +103,7 @@ extern const is31fl3731_led_t PROGMEM g_is31fl3731_leds[IS31FL3731_LED_COUNT];
 void is31fl3731_init_drivers(void);
 void is31fl3731_init(uint8_t addr);
 void is31fl3731_write_register(uint8_t addr, uint8_t reg, uint8_t data);
+void is31fl3731_select_page(uint8_t addr, uint8_t page);
 void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3731_set_value(int index, uint8_t value);

drivers/led/issi/is31fl3731.c

@@ -59,8 +59,12 @@ void is31fl3731_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
 #endif
 }
 
+void is31fl3731_select_page(uint8_t addr, uint8_t page) {
+    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, page);
+}
+
 void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
-    // assumes bank is already selected
+    // assumes page 0 is already selected
 
     // transmit PWM registers in 9 transfers of 16 bytes
     // g_twi_transfer_buffer[] is 20 bytes
@@ -120,8 +124,7 @@ void is31fl3731_init(uint8_t addr) {
     // then set up the mode and other settings, clear the PWM registers,
     // then disable software shutdown.
 
-    // select "function register" bank
-    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FUNCTION);
+    is31fl3731_select_page(addr, IS31FL3731_COMMAND_FUNCTION);
 
     // enable software shutdown
     is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_SHUTDOWN, 0x00);
@@ -139,8 +142,7 @@ void is31fl3731_init(uint8_t addr) {
     // audio sync off
     is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_AUDIO_SYNC, 0x00);
 
-    // select bank 0
-    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FRAME_1);
+    is31fl3731_select_page(addr, IS31FL3731_COMMAND_FRAME_1);
 
     // turn off all LEDs in the LED control register
     for (int i = 0; i < IS31FL3731_LED_CONTROL_REGISTER_COUNT; i++) {
@@ -157,16 +159,15 @@ void is31fl3731_init(uint8_t addr) {
         is31fl3731_write_register(addr, i, 0x00);
     }
 
-    // select "function register" bank
-    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FUNCTION);
+    is31fl3731_select_page(addr, IS31FL3731_COMMAND_FUNCTION);
 
     // disable software shutdown
     is31fl3731_write_register(addr, IS31FL3731_FUNCTION_REG_SHUTDOWN, 0x01);
 
-    // select bank 0 and leave it selected.
-    // most usage after initialization is just writing PWM buffers in bank 0
+    // select page 0 and leave it selected.
+    // most usage after initialization is just writing PWM buffers in page 0
     // as there's not much point in double-buffering
-    is31fl3731_write_register(addr, IS31FL3731_REG_COMMAND, IS31FL3731_COMMAND_FRAME_1);
+    is31fl3731_select_page(addr, IS31FL3731_COMMAND_FRAME_1);
 }
 
 void is31fl3731_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {

drivers/led/issi/is31fl3731.h

@@ -104,6 +104,7 @@ extern const is31fl3731_led_t PROGMEM g_is31fl3731_leds[IS31FL3731_LED_COUNT];
 void is31fl3731_init_drivers(void);
 void is31fl3731_init(uint8_t addr);
 void is31fl3731_write_register(uint8_t addr, uint8_t reg, uint8_t data);
+void is31fl3731_select_page(uint8_t addr, uint8_t page);
 void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3731_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);

drivers/led/issi/is31fl3733-simple.c

@@ -67,7 +67,7 @@
 uint8_t g_twi_transfer_buffer[20];
 
 // These buffers match the IS31FL3733 PWM registers.
-// The control buffers match the PG0 LED On/Off registers.
+// The control buffers match the page 0 LED On/Off registers.
 // Storing them like this is optimal for I2C transfers to the registers.
 // We could optimize this and take out the unused registers from these
 // buffers and the transfers in is31fl3733_write_pwm_buffer() but it's
@@ -97,8 +97,13 @@ bool is31fl3733_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
     return true;
 }
 
+void is31fl3733_select_page(uint8_t addr, uint8_t page) {
+    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, page);
+}
+
 bool is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
-    // Assumes PG1 is already selected.
+    // Assumes page 1 is already selected.
     // If any of the transactions fails function returns false.
     // Transmit PWM registers in 12 transfers of 16 bytes.
     // g_twi_transfer_buffer[] is 20 bytes
@@ -163,32 +168,23 @@ void is31fl3733_init(uint8_t addr, uint8_t sync) {
     // then disable software shutdown.
     // Sync is passed so set it according to the datasheet.
 
-    // Unlock the command register.
-    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3733_select_page(addr, IS31FL3733_COMMAND_LED_CONTROL);
 
-    // Select PG0
-    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_LED_CONTROL);
     // Turn off all LEDs.
     for (int i = 0; i < IS31FL3733_LED_CONTROL_REGISTER_COUNT; i++) {
         is31fl3733_write_register(addr, i, 0x00);
     }
 
-    // Unlock the command register.
-    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3733_select_page(addr, IS31FL3733_COMMAND_PWM);
 
-    // Select PG1
-    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_PWM);
     // Set PWM on all LEDs to 0
     // No need to setup Breath registers to PWM as that is the default.
     for (int i = 0; i < IS31FL3733_PWM_REGISTER_COUNT; i++) {
         is31fl3733_write_register(addr, i, 0x00);
     }
 
-    // Unlock the command register.
-    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3733_select_page(addr, IS31FL3733_COMMAND_FUNCTION);
 
-    // Select PG3
-    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_FUNCTION);
     // Set de-ghost pull-up resistors (SWx)
     is31fl3733_write_register(addr, IS31FL3733_FUNCTION_REG_SW_PULLUP, IS31FL3733_SW_PULLUP);
     // Set de-ghost pull-down resistors (CSx)
@@ -239,11 +235,9 @@ void is31fl3733_set_led_control_register(uint8_t index, bool value) {
 
 void is31fl3733_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
-        // Firstly we need to unlock the command register and select PG1.
-        is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_PWM);
+        is31fl3733_select_page(addr, IS31FL3733_COMMAND_PWM);
 
-        // If any of the transactions fail we risk writing dirty PG0,
+        // If any of the transactions fail we risk writing dirty page 0,
         // refresh page 0 just in case.
         if (!is31fl3733_write_pwm_buffer(addr, g_pwm_buffer[index])) {
             g_led_control_registers_update_required[index] = true;
@@ -254,9 +248,8 @@ void is31fl3733_update_pwm_buffers(uint8_t addr, uint8_t index) {
 
 void is31fl3733_update_led_control_registers(uint8_t addr, uint8_t index) {
     if (g_led_control_registers_update_required[index]) {
-        // Firstly we need to unlock the command register and select PG0
-        is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_LED_CONTROL);
+        is31fl3733_select_page(addr, IS31FL3733_COMMAND_LED_CONTROL);
+
         for (int i = 0; i < IS31FL3733_LED_CONTROL_REGISTER_COUNT; i++) {
             is31fl3733_write_register(addr, i, g_led_control_registers[index][i]);
         }

drivers/led/issi/is31fl3733-simple.h

@@ -117,6 +117,7 @@ extern const is31fl3733_led_t PROGMEM g_is31fl3733_leds[IS31FL3733_LED_COUNT];
 void is31fl3733_init_drivers(void);
 void is31fl3733_init(uint8_t addr, uint8_t sync);
 bool is31fl3733_write_register(uint8_t addr, uint8_t reg, uint8_t data);
+void is31fl3733_select_page(uint8_t addr, uint8_t page);
 bool is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3733_set_value(int index, uint8_t value);

drivers/led/issi/is31fl3733.c

@@ -66,7 +66,7 @@
 uint8_t g_twi_transfer_buffer[20];
 
 // These buffers match the IS31FL3733 PWM registers.
-// The control buffers match the PG0 LED On/Off registers.
+// The control buffers match the page 0 LED On/Off registers.
 // Storing them like this is optimal for I2C transfers to the registers.
 // We could optimize this and take out the unused registers from these
 // buffers and the transfers in is31fl3733_write_pwm_buffer() but it's
@@ -96,8 +96,13 @@ bool is31fl3733_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
     return true;
 }
 
+void is31fl3733_select_page(uint8_t addr, uint8_t page) {
+    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, page);
+}
+
 bool is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
-    // Assumes PG1 is already selected.
+    // Assumes page 1 is already selected.
     // If any of the transactions fails function returns false.
     // Transmit PWM registers in 12 transfers of 16 bytes.
     // g_twi_transfer_buffer[] is 20 bytes
@@ -162,32 +167,23 @@ void is31fl3733_init(uint8_t addr, uint8_t sync) {
     // then disable software shutdown.
     // Sync is passed so set it according to the datasheet.
 
-    // Unlock the command register.
-    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3733_select_page(addr, IS31FL3733_COMMAND_LED_CONTROL);
 
-    // Select PG0
-    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_LED_CONTROL);
     // Turn off all LEDs.
     for (int i = 0; i < IS31FL3733_LED_CONTROL_REGISTER_COUNT; i++) {
         is31fl3733_write_register(addr, i, 0x00);
     }
 
-    // Unlock the command register.
-    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3733_select_page(addr, IS31FL3733_COMMAND_PWM);
 
-    // Select PG1
-    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_PWM);
     // Set PWM on all LEDs to 0
     // No need to setup Breath registers to PWM as that is the default.
     for (int i = 0; i < IS31FL3733_PWM_REGISTER_COUNT; i++) {
         is31fl3733_write_register(addr, i, 0x00);
     }
 
-    // Unlock the command register.
-    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3733_select_page(addr, IS31FL3733_COMMAND_FUNCTION);
 
-    // Select PG3
-    is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_FUNCTION);
     // Set de-ghost pull-up resistors (SWx)
     is31fl3733_write_register(addr, IS31FL3733_FUNCTION_REG_SW_PULLUP, IS31FL3733_SW_PULLUP);
     // Set de-ghost pull-down resistors (CSx)
@@ -254,11 +250,9 @@ void is31fl3733_set_led_control_register(uint8_t index, bool red, bool green, bo
 
 void is31fl3733_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
-        // Firstly we need to unlock the command register and select PG1.
-        is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_PWM);
+        is31fl3733_select_page(addr, IS31FL3733_COMMAND_PWM);
 
-        // If any of the transactions fail we risk writing dirty PG0,
+        // If any of the transactions fail we risk writing dirty page 0,
         // refresh page 0 just in case.
         if (!is31fl3733_write_pwm_buffer(addr, g_pwm_buffer[index])) {
             g_led_control_registers_update_required[index] = true;
@@ -269,9 +263,8 @@ void is31fl3733_update_pwm_buffers(uint8_t addr, uint8_t index) {
 
 void is31fl3733_update_led_control_registers(uint8_t addr, uint8_t index) {
     if (g_led_control_registers_update_required[index]) {
-        // Firstly we need to unlock the command register and select PG0
-        is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3733_write_register(addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_LED_CONTROL);
+        is31fl3733_select_page(addr, IS31FL3733_COMMAND_LED_CONTROL);
+
         for (int i = 0; i < IS31FL3733_LED_CONTROL_REGISTER_COUNT; i++) {
             is31fl3733_write_register(addr, i, g_led_control_registers[index][i]);
         }

drivers/led/issi/is31fl3733.h

@@ -142,6 +142,7 @@ extern const is31fl3733_led_t PROGMEM g_is31fl3733_leds[IS31FL3733_LED_COUNT];
 void is31fl3733_init_drivers(void);
 void is31fl3733_init(uint8_t addr, uint8_t sync);
 bool is31fl3733_write_register(uint8_t addr, uint8_t reg, uint8_t data);
+void is31fl3733_select_page(uint8_t addr, uint8_t page);
 bool is31fl3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3733_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);

drivers/led/issi/is31fl3736-simple.c

@@ -51,7 +51,7 @@
 uint8_t g_twi_transfer_buffer[20];
 
 // These buffers match the IS31FL3736 PWM registers.
-// The control buffers match the PG0 LED On/Off registers.
+// The control buffers match the page 0 LED On/Off registers.
 // Storing them like this is optimal for I2C transfers to the registers.
 // We could optimize this and take out the unused registers from these
 // buffers and the transfers in is31fl3736_write_pwm_buffer() but it's
@@ -75,8 +75,13 @@ void is31fl3736_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
 #endif
 }
 
+void is31fl3736_select_page(uint8_t addr, uint8_t page) {
+    is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, page);
+}
+
 void is31fl3736_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
-    // assumes PG1 is already selected
+    // assumes page 1 is already selected
 
     // transmit PWM registers in 12 transfers of 16 bytes
     // g_twi_transfer_buffer[] is 20 bytes
@@ -135,32 +140,23 @@ void is31fl3736_init(uint8_t addr) {
     // Set up the mode and other settings, clear the PWM registers,
     // then disable software shutdown.
 
-    // Unlock the command register.
-    is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3736_select_page(addr, IS31FL3736_COMMAND_LED_CONTROL);
 
-    // Select PG0
-    is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, IS31FL3736_COMMAND_LED_CONTROL);
     // Turn off all LEDs.
     for (int i = 0; i < IS31FL3736_LED_CONTROL_REGISTER_COUNT; i++) {
         is31fl3736_write_register(addr, i, 0x00);
     }
 
-    // Unlock the command register.
-    is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3736_select_page(addr, IS31FL3736_COMMAND_PWM);
 
-    // Select PG1
-    is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, IS31FL3736_COMMAND_PWM);
     // Set PWM on all LEDs to 0
     // No need to setup Breath registers to PWM as that is the default.
     for (int i = 0; i < IS31FL3736_PWM_REGISTER_COUNT; i++) {
         is31fl3736_write_register(addr, i, 0x00);
     }
 
-    // Unlock the command register.
-    is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3736_select_page(addr, IS31FL3736_COMMAND_FUNCTION);
 
-    // Select PG3
-    is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, IS31FL3736_COMMAND_FUNCTION);
     // Set de-ghost pull-up resistors (SWx)
     is31fl3736_write_register(addr, IS31FL3736_FUNCTION_REG_SW_PULLUP, IS31FL3736_SW_PULLUP);
     // Set de-ghost pull-down resistors (CSx)
@@ -217,9 +213,7 @@ void is31fl3736_set_led_control_register(uint8_t index, bool value) {
 
 void is31fl3736_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
-        // Firstly we need to unlock the command register and select PG1
-        is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, IS31FL3736_COMMAND_PWM);
+        is31fl3736_select_page(addr, IS31FL3736_COMMAND_PWM);
 
         is31fl3736_write_pwm_buffer(addr, g_pwm_buffer[index]);
         g_pwm_buffer_update_required[index] = false;
@@ -228,9 +222,8 @@ void is31fl3736_update_pwm_buffers(uint8_t addr, uint8_t index) {
 
 void is31fl3736_update_led_control_registers(uint8_t addr, uint8_t index) {
     if (g_led_control_registers_update_required[index]) {
-        // Firstly we need to unlock the command register and select PG0
-        is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, IS31FL3736_COMMAND_LED_CONTROL);
+        is31fl3736_select_page(addr, IS31FL3736_COMMAND_LED_CONTROL);
+
         for (int i = 0; i < IS31FL3736_LED_CONTROL_REGISTER_COUNT; i++) {
             is31fl3736_write_register(addr, i, g_led_control_registers[index][i]);
         }

drivers/led/issi/is31fl3736-simple.h

@@ -112,6 +112,7 @@ extern const is31fl3736_led_t PROGMEM g_is31fl3736_leds[IS31FL3736_LED_COUNT];
 void is31fl3736_init_drivers(void);
 void is31fl3736_init(uint8_t addr);
 void is31fl3736_write_register(uint8_t addr, uint8_t reg, uint8_t data);
+void is31fl3736_select_page(uint8_t addr, uint8_t page);
 void is31fl3736_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3736_set_value(int index, uint8_t value);

drivers/led/issi/is31fl3736.c

@@ -51,7 +51,7 @@
 uint8_t g_twi_transfer_buffer[20];
 
 // These buffers match the IS31FL3736 PWM registers.
-// The control buffers match the PG0 LED On/Off registers.
+// The control buffers match the page 0 LED On/Off registers.
 // Storing them like this is optimal for I2C transfers to the registers.
 // We could optimize this and take out the unused registers from these
 // buffers and the transfers in is31fl3736_write_pwm_buffer() but it's
@@ -75,8 +75,13 @@ void is31fl3736_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
 #endif
 }
 
+void is31fl3736_select_page(uint8_t addr, uint8_t page) {
+    is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, page);
+}
+
 void is31fl3736_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
-    // assumes PG1 is already selected
+    // assumes page 1 is already selected
 
     // transmit PWM registers in 12 transfers of 16 bytes
     // g_twi_transfer_buffer[] is 20 bytes
@@ -135,32 +140,23 @@ void is31fl3736_init(uint8_t addr) {
     // Set up the mode and other settings, clear the PWM registers,
     // then disable software shutdown.
 
-    // Unlock the command register.
-    is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3736_select_page(addr, IS31FL3736_REG_LED_CONTROL);
 
-    // Select PG0
-    is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, IS31FL3736_REG_LED_CONTROL);
     // Turn off all LEDs.
     for (int i = 0; i < IS31FL3736_LED_CONTROL_REGISTER_COUNT; i++) {
         is31fl3736_write_register(addr, i, 0x00);
     }
 
-    // Unlock the command register.
-    is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITELOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3736_select_page(addr, IS31FL3736_COMMAND_PWM);
 
-    // Select PG1
-    is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, IS31FL3736_COMMAND_PWM);
     // Set PWM on all LEDs to 0
     // No need to setup Breath registers to PWM as that is the default.
     for (int i = 0; i < IS31FL3736_PWM_REGISTER_COUNT; i++) {
         is31fl3736_write_register(addr, i, 0x00);
     }
 
-    // Unlock the command register.
-    is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3736_select_page(addr, IS31FL3736_COMMAND_FUNCTION);
 
-    // Select PG3
-    is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, IS31FL3736_COMMAND_FUNCTION);
     // Set de-ghost pull-up resistors (SWx)
     is31fl3736_write_register(addr, IS31FL3736_FUNCTION_REG_SW_PULLUP, IS31FL3736_SW_PULLUP);
     // Set de-ghost pull-down resistors (CSx)
@@ -234,9 +230,7 @@ void is31fl3736_set_led_control_register(uint8_t index, bool red, bool green, bo
 
 void is31fl3736_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
-        // Firstly we need to unlock the command register and select PG1
-        is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, IS31FL3736_COMMAND_PWM);
+        is31fl3736_select_page(addr, IS31FL3736_COMMAND_PWM);
 
         is31fl3736_write_pwm_buffer(addr, g_pwm_buffer[index]);
         g_pwm_buffer_update_required[index] = false;
@@ -245,9 +239,8 @@ void is31fl3736_update_pwm_buffers(uint8_t addr, uint8_t index) {
 
 void is31fl3736_update_led_control_registers(uint8_t addr, uint8_t index) {
     if (g_led_control_registers_update_required[index]) {
-        // Firstly we need to unlock the command register and select PG0
-        is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, IS31FL3736_COMMAND_LED_CONTROL);
+        is31fl3736_select_page(addr, IS31FL3736_COMMAND_LED_CONTROL);
+
         for (int i = 0; i < IS31FL3736_LED_CONTROL_REGISTER_COUNT; i++) {
             is31fl3736_write_register(addr, i, g_led_control_registers[index][i]);
         }

drivers/led/issi/is31fl3736.h

@@ -126,6 +126,7 @@ extern const is31fl3736_led_t PROGMEM g_is31fl3736_leds[IS31FL3736_LED_COUNT];
 void is31fl3736_init_drivers(void);
 void is31fl3736_init(uint8_t addr);
 void is31fl3736_write_register(uint8_t addr, uint8_t reg, uint8_t data);
+void is31fl3736_select_page(uint8_t addr, uint8_t page);
 void is31fl3736_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3736_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);

drivers/led/issi/is31fl3737-simple.c

@@ -53,7 +53,7 @@
 uint8_t g_twi_transfer_buffer[20];
 
 // These buffers match the IS31FL3737 PWM registers.
-// The control buffers match the PG0 LED On/Off registers.
+// The control buffers match the page 0 LED On/Off registers.
 // Storing them like this is optimal for I2C transfers to the registers.
 // We could optimize this and take out the unused registers from these
 // buffers and the transfers in is31fl3737_write_pwm_buffer() but it's
@@ -78,8 +78,13 @@ void is31fl3737_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
 #endif
 }
 
+void is31fl3737_select_page(uint8_t addr, uint8_t page) {
+    is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND_WRITE_LOCK, IS31FL3737_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND, page);
+}
+
 void is31fl3737_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
-    // assumes PG1 is already selected
+    // assumes page 1 is already selected
 
     // transmit PWM registers in 12 transfers of 16 bytes
     // g_twi_transfer_buffer[] is 20 bytes
@@ -138,32 +143,23 @@ void is31fl3737_init(uint8_t addr) {
     // Set up the mode and other settings, clear the PWM registers,
     // then disable software shutdown.
 
-    // Unlock the command register.
-    is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND_WRITE_LOCK, IS31FL3737_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3737_select_page(addr, IS31FL3737_COMMAND_LED_CONTROL);
 
-    // Select PG0
-    is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND, IS31FL3737_COMMAND_LED_CONTROL);
     // Turn off all LEDs.
     for (int i = 0; i < IS31FL3737_LED_CONTROL_REGISTER_COUNT; i++) {
         is31fl3737_write_register(addr, i, 0x00);
     }
 
-    // Unlock the command register.
-    is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND_WRITE_LOCK, IS31FL3737_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3737_select_page(addr, IS31FL3737_COMMAND_PWM);
 
-    // Select PG1
-    is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND, IS31FL3737_COMMAND_PWM);
     // Set PWM on all LEDs to 0
     // No need to setup Breath registers to PWM as that is the default.
     for (int i = 0; i < IS31FL3737_PWM_REGISTER_COUNT; i++) {
         is31fl3737_write_register(addr, i, 0x00);
     }
 
-    // Unlock the command register.
-    is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND_WRITE_LOCK, IS31FL3737_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3737_select_page(addr, IS31FL3737_COMMAND_FUNCTION);
 
-    // Select PG3
-    is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND, IS31FL3737_COMMAND_FUNCTION);
     // Set de-ghost pull-up resistors (SWx)
     is31fl3737_write_register(addr, IS31FL3737_FUNCTION_REG_SW_PULLUP, IS31FL3737_SW_PULLUP);
     // Set de-ghost pull-down resistors (CSx)
@@ -214,9 +210,7 @@ void is31fl3737_set_led_control_register(uint8_t index, bool value) {
 
 void is31fl3737_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
-        // Firstly we need to unlock the command register and select PG1
-        is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND_WRITE_LOCK, IS31FL3737_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND, IS31FL3737_COMMAND_PWM);
+        is31fl3737_select_page(addr, IS31FL3737_COMMAND_PWM);
 
         is31fl3737_write_pwm_buffer(addr, g_pwm_buffer[index]);
         g_pwm_buffer_update_required[index] = false;
@@ -225,9 +219,8 @@ void is31fl3737_update_pwm_buffers(uint8_t addr, uint8_t index) {
 
 void is31fl3737_update_led_control_registers(uint8_t addr, uint8_t index) {
     if (g_led_control_registers_update_required[index]) {
-        // Firstly we need to unlock the command register and select PG0
-        is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND_WRITE_LOCK, IS31FL3737_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND, IS31FL3737_COMMAND_LED_CONTROL);
+        is31fl3737_select_page(addr, IS31FL3737_COMMAND_LED_CONTROL);
+
         for (int i = 0; i < IS31FL3737_LED_CONTROL_REGISTER_COUNT; i++) {
             is31fl3737_write_register(addr, i, g_led_control_registers[index][i]);
         }

drivers/led/issi/is31fl3737-simple.h

@@ -102,6 +102,7 @@ extern const is31fl3737_led_t PROGMEM g_is31fl3737_leds[IS31FL3737_LED_COUNT];
 void is31fl3737_init_drivers(void);
 void is31fl3737_init(uint8_t addr);
 void is31fl3737_write_register(uint8_t addr, uint8_t reg, uint8_t data);
+void is31fl3737_select_page(uint8_t addr, uint8_t page);
 void is31fl3737_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3737_set_value(int index, uint8_t value);

drivers/led/issi/is31fl3737.c

@@ -53,7 +53,7 @@
 uint8_t g_twi_transfer_buffer[20];
 
 // These buffers match the IS31FL3737 PWM registers.
-// The control buffers match the PG0 LED On/Off registers.
+// The control buffers match the page 0 LED On/Off registers.
 // Storing them like this is optimal for I2C transfers to the registers.
 // We could optimize this and take out the unused registers from these
 // buffers and the transfers in is31fl3737_write_pwm_buffer() but it's
@@ -78,8 +78,13 @@ void is31fl3737_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
 #endif
 }
 
+void is31fl3737_select_page(uint8_t addr, uint8_t page) {
+    is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND_WRITE_LOCK, IS31FL3737_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND, page);
+}
+
 void is31fl3737_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
-    // assumes PG1 is already selected
+    // assumes page 1 is already selected
 
     // transmit PWM registers in 12 transfers of 16 bytes
     // g_twi_transfer_buffer[] is 20 bytes
@@ -138,32 +143,23 @@ void is31fl3737_init(uint8_t addr) {
     // Set up the mode and other settings, clear the PWM registers,
     // then disable software shutdown.
 
-    // Unlock the command register.
-    is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND_WRITE_LOCK, IS31FL3737_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3737_select_page(addr, IS31FL3737_COMMAND_LED_CONTROL);
 
-    // Select PG0
-    is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND, IS31FL3737_COMMAND_LED_CONTROL);
     // Turn off all LEDs.
     for (int i = 0; i < IS31FL3737_LED_CONTROL_REGISTER_COUNT; i++) {
         is31fl3737_write_register(addr, i, 0x00);
     }
 
-    // Unlock the command register.
-    is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND_WRITE_LOCK, IS31FL3737_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3737_select_page(addr, IS31FL3737_COMMAND_PWM);
 
-    // Select PG1
-    is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND, IS31FL3737_COMMAND_PWM);
     // Set PWM on all LEDs to 0
     // No need to setup Breath registers to PWM as that is the default.
     for (int i = 0; i < IS31FL3737_PWM_REGISTER_COUNT; i++) {
         is31fl3737_write_register(addr, i, 0x00);
     }
 
-    // Unlock the command register.
-    is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND_WRITE_LOCK, IS31FL3737_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3737_select_page(addr, IS31FL3737_COMMAND_FUNCTION);
 
-    // Select PG3
-    is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND, IS31FL3737_COMMAND_FUNCTION);
     // Set de-ghost pull-up resistors (SWx)
     is31fl3737_write_register(addr, IS31FL3737_FUNCTION_REG_SW_PULLUP, IS31FL3737_SW_PULLUP);
     // Set de-ghost pull-down resistors (CSx)
@@ -230,9 +226,7 @@ void is31fl3737_set_led_control_register(uint8_t index, bool red, bool green, bo
 
 void is31fl3737_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
-        // Firstly we need to unlock the command register and select PG1
-        is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND_WRITE_LOCK, IS31FL3737_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND, IS31FL3737_COMMAND_PWM);
+        is31fl3737_select_page(addr, IS31FL3737_COMMAND_PWM);
 
         is31fl3737_write_pwm_buffer(addr, g_pwm_buffer[index]);
         g_pwm_buffer_update_required[index] = false;
@@ -241,9 +235,8 @@ void is31fl3737_update_pwm_buffers(uint8_t addr, uint8_t index) {
 
 void is31fl3737_update_led_control_registers(uint8_t addr, uint8_t index) {
     if (g_led_control_registers_update_required[index]) {
-        // Firstly we need to unlock the command register and select PG0
-        is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND_WRITE_LOCK, IS31FL3737_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3737_write_register(addr, IS31FL3737_REG_COMMAND, IS31FL3737_COMMAND_LED_CONTROL);
+        is31fl3737_select_page(addr, IS31FL3737_COMMAND_LED_CONTROL);
+
         for (int i = 0; i < IS31FL3737_LED_CONTROL_REGISTER_COUNT; i++) {
             is31fl3737_write_register(addr, i, g_led_control_registers[index][i]);
         }

drivers/led/issi/is31fl3737.h

@@ -119,6 +119,7 @@ extern const is31fl3737_led_t PROGMEM g_is31fl3737_leds[IS31FL3737_LED_COUNT];
 void is31fl3737_init_drivers(void);
 void is31fl3737_init(uint8_t addr);
 void is31fl3737_write_register(uint8_t addr, uint8_t reg, uint8_t data);
+void is31fl3737_select_page(uint8_t addr, uint8_t page);
 void is31fl3737_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3737_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);

drivers/led/issi/is31fl3741-simple.c

@@ -56,7 +56,7 @@
 uint8_t g_twi_transfer_buffer[20] = {0xFF};
 
 // These buffers match the IS31FL3741 and IS31FL3741A PWM registers.
-// The scaling buffers match the PG2 and PG3 LED On/Off registers.
+// The scaling buffers match the page 2 and 3 LED On/Off registers.
 // Storing them like this is optimal for I2C transfers to the registers.
 // We could optimize this and take out the unused registers from these
 // buffers and the transfers in is31fl3741_write_pwm_buffer() but it's
@@ -80,14 +80,17 @@ void is31fl3741_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
 #endif
 }
 
+void is31fl3741_select_page(uint8_t addr, uint8_t page) {
+    is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, page);
+}
+
 bool is31fl3741_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
-    // Assume PG0 is already selected
+    // Assume page 0 is already selected
 
     for (int i = 0; i < 342; i += 18) {
         if (i == 180) {
-            // unlock the command register and select PG1
-            is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC);
-            is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, IS31FL3741_COMMAND_PWM_1);
+            is31fl3741_select_page(addr, IS31FL3741_COMMAND_PWM_1);
         }
 
         g_twi_transfer_buffer[0] = i % 180;
@@ -162,11 +165,7 @@ void is31fl3741_init(uint8_t addr) {
     // then disable software shutdown.
     // Unlock the command register.
 
-    // Unlock the command register.
-    is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC);
-
-    // Select PG4
-    is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, IS31FL3741_COMMAND_FUNCTION);
+    is31fl3741_select_page(addr, IS31FL3741_COMMAND_FUNCTION);
 
     // Set to Normal operation
     is31fl3741_write_register(addr, IS31FL3741_FUNCTION_REG_CONFIGURATION, IS31FL3741_CONFIGURATION);
@@ -218,9 +217,7 @@ void is31fl3741_set_led_control_register(uint8_t index, bool value) {
 
 void is31fl3741_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
-        // unlock the command register and select PG2
-        is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, IS31FL3741_COMMAND_PWM_0);
+        is31fl3741_select_page(addr, IS31FL3741_COMMAND_PWM_0);
 
         is31fl3741_write_pwm_buffer(addr, g_pwm_buffer[index]);
     }
@@ -236,20 +233,16 @@ void is31fl3741_set_pwm_buffer(const is31fl3741_led_t *pled, uint8_t value) {
 
 void is31fl3741_update_led_control_registers(uint8_t addr, uint8_t index) {
     if (g_scaling_registers_update_required[index]) {
-        // unlock the command register and select PG2
-        is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, IS31FL3741_COMMAND_SCALING_0);
+        is31fl3741_select_page(addr, IS31FL3741_COMMAND_SCALING_0);
 
-        // CS1_SW1 to CS30_SW6 are on PG2
+        // CS1_SW1 to CS30_SW6 are on page 2
         for (int i = CS1_SW1; i <= CS30_SW6; ++i) {
             is31fl3741_write_register(addr, i, g_scaling_registers[index][i]);
         }
 
-        // unlock the command register and select PG3
-        is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, IS31FL3741_COMMAND_SCALING_1);
+        is31fl3741_select_page(addr, IS31FL3741_COMMAND_SCALING_1);
 
-        // CS1_SW7 to CS39_SW9 are on PG3
+        // CS1_SW7 to CS39_SW9 are on page 3
         for (int i = CS1_SW7; i <= CS39_SW9; ++i) {
             is31fl3741_write_register(addr, i - CS1_SW7, g_scaling_registers[index][i]);
         }

drivers/led/issi/is31fl3741-simple.h

@@ -104,6 +104,7 @@ extern const is31fl3741_led_t PROGMEM g_is31fl3741_leds[IS31FL3741_LED_COUNT];
 void is31fl3741_init_drivers(void);
 void is31fl3741_init(uint8_t addr);
 void is31fl3741_write_register(uint8_t addr, uint8_t reg, uint8_t data);
+void is31fl3741_select_page(uint8_t addr, uint8_t page);
 bool is31fl3741_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3741_set_value(int index, uint8_t value);

drivers/led/issi/is31fl3741.c

@@ -56,7 +56,7 @@
 uint8_t g_twi_transfer_buffer[20] = {0xFF};
 
 // These buffers match the IS31FL3741 and IS31FL3741A PWM registers.
-// The scaling buffers match the PG2 and PG3 LED On/Off registers.
+// The scaling buffers match the page 2 and 3 LED On/Off registers.
 // Storing them like this is optimal for I2C transfers to the registers.
 // We could optimize this and take out the unused registers from these
 // buffers and the transfers in is31fl3741_write_pwm_buffer() but it's
@@ -80,14 +80,17 @@ void is31fl3741_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
 #endif
 }
 
+void is31fl3741_select_page(uint8_t addr, uint8_t page) {
+    is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, page);
+}
+
 bool is31fl3741_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
-    // Assume PG0 is already selected
+    // Assume page 0 is already selected
 
     for (int i = 0; i < 342; i += 18) {
         if (i == 180) {
-            // unlock the command register and select PG1
-            is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC);
-            is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, IS31FL3741_COMMAND_PWM_1);
+            is31fl3741_select_page(addr, IS31FL3741_COMMAND_PWM_1);
         }
 
         g_twi_transfer_buffer[0] = i % 180;
@@ -162,11 +165,7 @@ void is31fl3741_init(uint8_t addr) {
     // then disable software shutdown.
     // Unlock the command register.
 
-    // Unlock the command register.
-    is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC);
-
-    // Select PG4
-    is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, IS31FL3741_COMMAND_FUNCTION);
+    is31fl3741_select_page(addr, IS31FL3741_COMMAND_FUNCTION);
 
     // Set to Normal operation
     is31fl3741_write_register(addr, IS31FL3741_FUNCTION_REG_CONFIGURATION, IS31FL3741_CONFIGURATION);
@@ -232,9 +231,7 @@ void is31fl3741_set_led_control_register(uint8_t index, bool red, bool green, bo
 
 void is31fl3741_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
-        // unlock the command register and select PG2
-        is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, IS31FL3741_COMMAND_PWM_0);
+        is31fl3741_select_page(addr, IS31FL3741_COMMAND_PWM_0);
 
         is31fl3741_write_pwm_buffer(addr, g_pwm_buffer[index]);
     }
@@ -252,20 +249,16 @@ void is31fl3741_set_pwm_buffer(const is31fl3741_led_t *pled, uint8_t red, uint8_
 
 void is31fl3741_update_led_control_registers(uint8_t addr, uint8_t index) {
     if (g_scaling_registers_update_required[index]) {
-        // unlock the command register and select PG2
-        is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, IS31FL3741_COMMAND_SCALING_0);
+        is31fl3741_select_page(addr, IS31FL3741_COMMAND_SCALING_0);
 
-        // CS1_SW1 to CS30_SW6 are on PG2
+        // CS1_SW1 to CS30_SW6 are on page 2
         for (int i = CS1_SW1; i <= CS30_SW6; ++i) {
             is31fl3741_write_register(addr, i, g_scaling_registers[index][i]);
         }
 
-        // unlock the command register and select PG3
-        is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND_WRITE_LOCK, IS31FL3741_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3741_write_register(addr, IS31FL3741_REG_COMMAND, IS31FL3741_COMMAND_SCALING_1);
+        is31fl3741_select_page(addr, IS31FL3741_COMMAND_SCALING_1);
 
-        // CS1_SW7 to CS39_SW9 are on PG3
+        // CS1_SW7 to CS39_SW9 are on page 3
         for (int i = CS1_SW7; i <= CS39_SW9; ++i) {
             is31fl3741_write_register(addr, i - CS1_SW7, g_scaling_registers[index][i]);
         }

drivers/led/issi/is31fl3741.h

@@ -121,6 +121,7 @@ extern const is31fl3741_led_t PROGMEM g_is31fl3741_leds[IS31FL3741_LED_COUNT];
 void is31fl3741_init_drivers(void);
 void is31fl3741_init(uint8_t addr);
 void is31fl3741_write_register(uint8_t addr, uint8_t reg, uint8_t data);
+void is31fl3741_select_page(uint8_t addr, uint8_t page);
 bool is31fl3741_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3741_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);

drivers/led/snled27351-simple.c

@@ -71,6 +71,10 @@ bool snled27351_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
     return true;
 }
 
+void snled27351_select_page(uint8_t addr, uint8_t page) {
+    snled27351_write_register(addr, SNLED27351_REG_COMMAND, page);
+}
+
 bool snled27351_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     // Assumes PG1 is already selected.
     // If any of the transactions fails function returns false.
@@ -133,8 +137,8 @@ void snled27351_init_drivers(void) {
 }
 
 void snled27351_init(uint8_t addr) {
-    // Select to function page
-    snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_FUNCTION);
+    snled27351_select_page(addr, SNLED27351_COMMAND_FUNCTION);
+
     // Setting LED driver to shutdown mode
     snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SHUTDOWN, SNLED27351_SOFTWARE_SHUTDOWN_SSD_SHUTDOWN);
     // Setting internal channel pulldown/pullup
@@ -147,33 +151,35 @@ void snled27351_init(uint8_t addr) {
     snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SLEW_RATE_CONTROL_MODE_2, SNLED27351_SLEW_RATE_CONTROL_MODE_2_DSL_ENABLE | SNLED27351_SLEW_RATE_CONTROL_MODE_2_SSL_ENABLE);
     // Setting Iref
     snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SLEEP, 0);
-    // Set LED CONTROL PAGE (Page 0)
-    snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_LED_CONTROL);
+
+    snled27351_select_page(addr, SNLED27351_COMMAND_LED_CONTROL);
+
     for (int i = 0; i < SNLED27351_LED_CONTROL_ON_OFF_LENGTH; i++) {
         snled27351_write_register(addr, i, 0x00);
     }
 
-    // Set PWM PAGE (Page 1)
-    snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_PWM);
+    snled27351_select_page(addr, SNLED27351_COMMAND_PWM);
+
     for (int i = 0; i < SNLED27351_LED_CURRENT_TUNE_LENGTH; i++) {
         snled27351_write_register(addr, i, 0x00);
     }
 
-    // Set CURRENT PAGE (Page 4)
+    snled27351_select_page(addr, SNLED27351_COMMAND_CURRENT_TUNE);
+
     uint8_t current_tune_reg_list[SNLED27351_LED_CURRENT_TUNE_LENGTH] = SNLED27351_CURRENT_TUNE;
-    snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_CURRENT_TUNE);
     for (int i = 0; i < SNLED27351_LED_CURRENT_TUNE_LENGTH; i++) {
         snled27351_write_register(addr, i, current_tune_reg_list[i]);
     }
 
+    snled27351_select_page(addr, SNLED27351_COMMAND_LED_CONTROL);
+
     // Enable LEDs ON/OFF
-    snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_LED_CONTROL);
     for (int i = 0; i < SNLED27351_LED_CONTROL_ON_OFF_LENGTH; i++) {
         snled27351_write_register(addr, i, 0xFF);
     }
 
-    // Select to function page
-    snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_FUNCTION);
+    snled27351_select_page(addr, SNLED27351_COMMAND_FUNCTION);
+
     // Setting LED driver to normal mode
     snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SHUTDOWN, SNLED27351_SOFTWARE_SHUTDOWN_SSD_NORMAL);
 }
@@ -215,7 +221,7 @@ void snled27351_set_led_control_register(uint8_t index, bool value) {
 
 void snled27351_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
-        snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_PWM);
+        snled27351_select_page(addr, SNLED27351_COMMAND_PWM);
 
         // If any of the transactions fail we risk writing dirty PG0,
         // refresh page 0 just in case.
@@ -228,7 +234,8 @@ void snled27351_update_pwm_buffers(uint8_t addr, uint8_t index) {
 
 void snled27351_update_led_control_registers(uint8_t addr, uint8_t index) {
     if (g_led_control_registers_update_required[index]) {
-        snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_LED_CONTROL);
+        snled27351_select_page(addr, SNLED27351_COMMAND_LED_CONTROL);
+
         for (int i = 0; i < SNLED27351_LED_CONTROL_REGISTER_COUNT; i++) {
             snled27351_write_register(addr, i, g_led_control_registers[index][i]);
         }
@@ -250,15 +257,15 @@ void snled27351_flush(void) {
 }
 
 void snled27351_sw_return_normal(uint8_t addr) {
-    // Select to function page
-    snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_FUNCTION);
+    snled27351_select_page(addr, SNLED27351_COMMAND_FUNCTION);
+
     // Setting LED driver to normal mode
     snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SHUTDOWN, SNLED27351_SOFTWARE_SHUTDOWN_SSD_NORMAL);
 }
 
 void snled27351_sw_shutdown(uint8_t addr) {
-    // Select to function page
-    snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_FUNCTION);
+    snled27351_select_page(addr, SNLED27351_COMMAND_FUNCTION);
+
     // Setting LED driver to shutdown mode
     snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SHUTDOWN, SNLED27351_SOFTWARE_SHUTDOWN_SSD_SHUTDOWN);
     // Write SW Sleep Register

drivers/led/snled27351-simple.h

@@ -155,6 +155,7 @@ extern const snled27351_led_t PROGMEM g_snled27351_leds[SNLED27351_LED_COUNT];
 
 void snled27351_init_drivers(void);
 void snled27351_init(uint8_t addr);
+void snled27351_select_page(uint8_t addr, uint8_t page);
 bool snled27351_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 bool snled27351_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 

drivers/led/snled27351.c

@@ -71,6 +71,10 @@ bool snled27351_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
     return true;
 }
 
+void snled27351_select_page(uint8_t addr, uint8_t page) {
+    snled27351_write_register(addr, SNLED27351_REG_COMMAND, page);
+}
+
 bool snled27351_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     // Assumes PG1 is already selected.
     // If any of the transactions fails function returns false.
@@ -132,8 +136,8 @@ void snled27351_init_drivers(void) {
 }
 
 void snled27351_init(uint8_t addr) {
-    // Select to function page
-    snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_FUNCTION);
+    snled27351_select_page(addr, SNLED27351_COMMAND_FUNCTION);
+
     // Setting LED driver to shutdown mode
     snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SHUTDOWN, SNLED27351_SOFTWARE_SHUTDOWN_SSD_SHUTDOWN);
     // Setting internal channel pulldown/pullup
@@ -146,33 +150,34 @@ void snled27351_init(uint8_t addr) {
     snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SLEW_RATE_CONTROL_MODE_2, SNLED27351_SLEW_RATE_CONTROL_MODE_2_DSL_ENABLE | SNLED27351_SLEW_RATE_CONTROL_MODE_2_SSL_ENABLE);
     // Setting Iref
     snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SLEEP, 0);
-    // Set LED CONTROL PAGE (Page 0)
-    snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_LED_CONTROL);
+
+    snled27351_select_page(addr, SNLED27351_COMMAND_LED_CONTROL);
+
     for (int i = 0; i < SNLED27351_LED_CONTROL_ON_OFF_LENGTH; i++) {
         snled27351_write_register(addr, i, 0x00);
     }
 
-    // Set PWM PAGE (Page 1)
-    snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_PWM);
+    snled27351_select_page(addr, SNLED27351_COMMAND_PWM);
+
     for (int i = 0; i < SNLED27351_LED_CURRENT_TUNE_LENGTH; i++) {
         snled27351_write_register(addr, i, 0x00);
     }
 
-    // Set CURRENT PAGE (Page 4)
+    snled27351_select_page(addr, SNLED27351_COMMAND_CURRENT_TUNE);
+
     uint8_t current_tune_reg_list[SNLED27351_LED_CURRENT_TUNE_LENGTH] = SNLED27351_CURRENT_TUNE;
-    snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_CURRENT_TUNE);
     for (int i = 0; i < SNLED27351_LED_CURRENT_TUNE_LENGTH; i++) {
         snled27351_write_register(addr, i, current_tune_reg_list[i]);
     }
 
-    // Enable LEDs ON/OFF
-    snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_LED_CONTROL);
+    snled27351_select_page(addr, SNLED27351_COMMAND_LED_CONTROL);
+
     for (int i = 0; i < SNLED27351_LED_CONTROL_ON_OFF_LENGTH; i++) {
         snled27351_write_register(addr, i, 0xFF);
     }
 
-    // Select to function page
-    snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_FUNCTION);
+    snled27351_select_page(addr, SNLED27351_COMMAND_FUNCTION);
+
     // Setting LED driver to normal mode
     snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SHUTDOWN, SNLED27351_SOFTWARE_SHUTDOWN_SSD_NORMAL);
 }
@@ -230,7 +235,7 @@ void snled27351_set_led_control_register(uint8_t index, bool red, bool green, bo
 
 void snled27351_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
-        snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_PWM);
+        snled27351_select_page(addr, SNLED27351_COMMAND_PWM);
 
         // If any of the transactions fail we risk writing dirty PG0,
         // refresh page 0 just in case.
@@ -243,7 +248,8 @@ void snled27351_update_pwm_buffers(uint8_t addr, uint8_t index) {
 
 void snled27351_update_led_control_registers(uint8_t addr, uint8_t index) {
     if (g_led_control_registers_update_required[index]) {
-        snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_LED_CONTROL);
+        snled27351_select_page(addr, SNLED27351_COMMAND_LED_CONTROL);
+
         for (int i = 0; i < SNLED27351_LED_CONTROL_REGISTER_COUNT; i++) {
             snled27351_write_register(addr, i, g_led_control_registers[index][i]);
         }
@@ -265,15 +271,15 @@ void snled27351_flush(void) {
 }
 
 void snled27351_sw_return_normal(uint8_t addr) {
-    // Select to function page
-    snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_FUNCTION);
+    snled27351_select_page(addr, SNLED27351_COMMAND_FUNCTION);
+
     // Setting LED driver to normal mode
     snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SHUTDOWN, SNLED27351_SOFTWARE_SHUTDOWN_SSD_NORMAL);
 }
 
 void snled27351_sw_shutdown(uint8_t addr) {
-    // Select to function page
-    snled27351_write_register(addr, SNLED27351_REG_COMMAND, SNLED27351_COMMAND_FUNCTION);
+    snled27351_select_page(addr, SNLED27351_COMMAND_FUNCTION);
+
     // Setting LED driver to shutdown mode
     snled27351_write_register(addr, SNLED27351_FUNCTION_REG_SOFTWARE_SHUTDOWN, SNLED27351_SOFTWARE_SHUTDOWN_SSD_SHUTDOWN);
     // Write SW Sleep Register

drivers/led/snled27351.h

@@ -169,6 +169,7 @@ extern const snled27351_led_t PROGMEM g_snled27351_leds[SNLED27351_LED_COUNT];
 
 void snled27351_init_drivers(void);
 void snled27351_init(uint8_t addr);
+void snled27351_select_page(uint8_t addr, uint8_t page);
 bool snled27351_write_register(uint8_t addr, uint8_t reg, uint8_t data);
 bool snled27351_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 

keyboards/input_club/k_type/is31fl3733-dual.c

@@ -64,7 +64,7 @@
 uint8_t g_twi_transfer_buffer[20];
 
 // These buffers match the IS31FL3733 PWM registers.
-// The control buffers match the PG0 LED On/Off registers.
+// The control buffers match the page 0 LED On/Off registers.
 // Storing them like this is optimal for I2C transfers to the registers.
 // We could optimize this and take out the unused registers from these
 // buffers and the transfers in is31fl3733_write_pwm_buffer() but it's
@@ -94,8 +94,13 @@ bool is31fl3733_write_register(uint8_t index, uint8_t addr, uint8_t reg, uint8_t
     return true;
 }
 
+void is31fl3733_select_page(uint8_t index, uint8_t addr, uint8_t page) {
+    is31fl3733_write_register(index, addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3733_write_register(index, addr, IS31FL3733_REG_COMMAND, page);
+}
+
 bool is31fl3733_write_pwm_buffer(uint8_t index, uint8_t addr, uint8_t *pwm_buffer) {
-    // Assumes PG1 is already selected.
+    // Assumes page 1 is already selected.
     // If any of the transactions fails function returns false.
     // Transmit PWM registers in 12 transfers of 16 bytes.
     // g_twi_transfer_buffer[] is 20 bytes
@@ -150,32 +155,23 @@ void is31fl3733_init(uint8_t bus, uint8_t addr, uint8_t sync) {
     // then disable software shutdown.
     // Sync is passed so set it according to the datasheet.
 
-    // Unlock the command register.
-    is31fl3733_write_register(bus, addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3733_select_page(bus, addr, IS31FL3733_COMMAND_LED_CONTROL);
 
-    // Select PG0
-    is31fl3733_write_register(bus, addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_LED_CONTROL);
     // Turn off all LEDs.
     for (int i = 0; i < IS31FL3733_LED_CONTROL_REGISTER_COUNT; i++) {
         is31fl3733_write_register(bus, addr, i, 0x00);
     }
 
-    // Unlock the command register.
-    is31fl3733_write_register(bus, addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3733_select_page(bus, addr, IS31FL3733_COMMAND_PWM);
 
-    // Select PG1
-    is31fl3733_write_register(bus, addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_PWM);
     // Set PWM on all LEDs to 0
     // No need to setup Breath registers to PWM as that is the default.
     for (int i = 0; i < IS31FL3733_PWM_REGISTER_COUNT; i++) {
         is31fl3733_write_register(bus, addr, i, 0x00);
     }
 
-    // Unlock the command register.
-    is31fl3733_write_register(bus, addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
+    is31fl3733_select_page(bus, addr, IS31FL3733_COMMAND_FUNCTION);
 
-    // Select PG3
-    is31fl3733_write_register(bus, addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_FUNCTION);
     // Set de-ghost pull-up resistors (SWx)
     is31fl3733_write_register(bus, addr, IS31FL3733_FUNCTION_REG_SW_PULLUP, IS31FL3733_SW_PULLUP);
     // Set de-ghost pull-down resistors (CSx)
@@ -242,11 +238,9 @@ void is31fl3733_set_led_control_register(uint8_t index, bool red, bool green, bo
 
 void is31fl3733_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
-        // Firstly we need to unlock the command register and select PG1.
-        is31fl3733_write_register(index, addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3733_write_register(index, addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_PWM);
+        is31fl3733_select_page(index, addr, IS31FL3733_COMMAND_PWM);
 
-        // If any of the transactions fail we risk writing dirty PG0,
+        // If any of the transactions fail we risk writing dirty page 0,
         // refresh page 0 just in case.
         if (!is31fl3733_write_pwm_buffer(index, addr, g_pwm_buffer[index])) {
             g_led_control_registers_update_required[index] = true;
@@ -257,9 +251,8 @@ void is31fl3733_update_pwm_buffers(uint8_t addr, uint8_t index) {
 
 void is31fl3733_update_led_control_registers(uint8_t addr, uint8_t index) {
     if (g_led_control_registers_update_required[index]) {
-        // Firstly we need to unlock the command register and select PG0
-        is31fl3733_write_register(index, addr, IS31FL3733_REG_COMMAND_WRITE_LOCK, IS31FL3733_COMMAND_WRITE_LOCK_MAGIC);
-        is31fl3733_write_register(index, addr, IS31FL3733_REG_COMMAND, IS31FL3733_COMMAND_LED_CONTROL);
+        is31fl3733_select_page(index, addr, IS31FL3733_COMMAND_LED_CONTROL);
+
         for (int i = 0; i < IS31FL3733_LED_CONTROL_REGISTER_COUNT; i++) {
             is31fl3733_write_register(index, addr, i, g_led_control_registers[index][i]);
         }

keyboards/input_club/k_type/is31fl3733-dual.h

@@ -70,6 +70,7 @@ extern const is31fl3733_led_t PROGMEM g_is31fl3733_leds[IS31FL3733_LED_COUNT];
 void is31fl3733_init_drivers(void);
 void is31fl3733_init(uint8_t bus, uint8_t addr, uint8_t sync);
 bool is31fl3733_write_register(uint8_t index, uint8_t addr, uint8_t reg, uint8_t data);
+void is31fl3733_select_page(uint8_t index, uint8_t addr, uint8_t page);
 bool is31fl3733_write_pwm_buffer(uint8_t index, uint8_t addr, uint8_t *pwm_buffer);
 
 void is31fl3733_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);

keyboards/input_club/k_type/keymaps/andrew-fahmy/config.h

@@ -16,37 +16,5 @@
 
 #pragma once
 
-
-#ifdef RGB_MATRIX_ENABLE
-// #    define RGB_MATRIX_FRAMEBUFFER_EFFECTS
-// #    define RGB_MATRIX_KEYPRESSES
-#    define RGB_MATRIX_DEFAULT_MODE RGB_MATRIX_RAINDROPS
-
-// #    define DEBUG_MATRIX_SCAN_RATE
-
-#    define RGB_MATRIX_LED_FLUSH_LIMIT 100
-// #    define RGB_MATRIX_LED_PROCESS_LIMIT 2
-
-// i2c_master defines
-#    define I2C_COUNT 2
-
-#    define I2C1_BANK GPIOB
-#    define I2C1_SCL 0 // A2 on pinout = B0
-#    define I2C1_SDA 1 // A2 on pinout = B1
-#    define I2C1_SCL_PAL_MODE PAL_MODE_ALTERNATIVE_2
-#    define I2C1_SDA_PAL_MODE PAL_MODE_ALTERNATIVE_2
-
-#    define USE_I2C2
-#    define I2C2_BANK GPIOC
-#    define I2C2_SCL 10 // A2 on pinout = C10
-#    define I2C2_SDA 11 // A2 on pinout = C11
-#    define I2C2_SCL_PAL_MODE PAL_MODE_ALTERNATIVE_2
-#    define I2C2_SDA_PAL_MODE PAL_MODE_ALTERNATIVE_2
-
-#    define DRIVER_ADDR_1 0b1010000
-#    define DRIVER_ADDR_2 0b1010000
-#    define DRIVER_COUNT 2
-#    define DRIVER_1_LED_TOTAL 64
-#    define DRIVER_2_LED_TOTAL 55
-#    define RGB_MATRIX_LED_COUNT (DRIVER_1_LED_TOTAL + DRIVER_2_LED_TOTAL)
-#endif
+#define RGB_MATRIX_DEFAULT_MODE RGB_MATRIX_RAINDROPS
+#define RGB_MATRIX_LED_FLUSH_LIMIT 100