Dual RGB Matrix IS31FL3737 driver support to address #13442 (#13457)

* initial commit

* removed changes to write_pwm_buffer

* backward compatbility added

* fixed issue with backward compatibility

* documentation update

* removed unneccessary comment. branched from master

* updated per comments #13457

* removed blank line

* cformat on diff files

1 files changed, 21 insertions, 22 deletions

diff --git a/drivers/issi/is31fl3737.c b/drivers/issi/is31fl3737.c
index e40bfa0d79..30906b4840 100644
--- a/drivers/issi/is31fl3737.c
+++ b/drivers/issi/is31fl3737.c
@@ -66,11 +66,12 @@ uint8_t g_twi_transfer_buffer[20];
 // We could optimize this and take out the unused registers from these
 // buffers and the transfers in IS31FL3737_write_pwm_buffer() but it's
 // probably not worth the extra complexity.
+
 uint8_t g_pwm_buffer[DRIVER_COUNT][192];
-bool    g_pwm_buffer_update_required = false;
+bool    g_pwm_buffer_update_required[DRIVER_COUNT] = {false};
 
-uint8_t g_led_control_registers[DRIVER_COUNT][24] = {{0}};
-bool    g_led_control_registers_update_required   = false;
+uint8_t g_led_control_registers[DRIVER_COUNT][24]             = {0};
+bool    g_led_control_registers_update_required[DRIVER_COUNT] = {false};
 
 void IS31FL3737_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
     g_twi_transfer_buffer[0] = reg;
@@ -158,10 +159,10 @@ void IS31FL3737_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
         is31_led led;
         memcpy_P(&led, (&g_is31_leds[index]), sizeof(led));
 
-        g_pwm_buffer[led.driver][led.r] = red;
-        g_pwm_buffer[led.driver][led.g] = green;
-        g_pwm_buffer[led.driver][led.b] = blue;
-        g_pwm_buffer_update_required    = true;
+        g_pwm_buffer[led.driver][led.r]          = red;
+        g_pwm_buffer[led.driver][led.g]          = green;
+        g_pwm_buffer[led.driver][led.b]          = blue;
+        g_pwm_buffer_update_required[led.driver] = true;
     }
 }
 
@@ -199,30 +200,28 @@ void IS31FL3737_set_led_control_register(uint8_t index, bool red, bool green, bo
         g_led_control_registers[led.driver][control_register_b] &= ~(1 << bit_b);
     }
 
-    g_led_control_registers_update_required = true;
+    g_led_control_registers_update_required[led.driver] = true;
 }
 
-void IS31FL3737_update_pwm_buffers(uint8_t addr1, uint8_t addr2) {
-    if (g_pwm_buffer_update_required) {
+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(addr1, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
-        IS31FL3737_write_register(addr1, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
+        IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+        IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
 
-        IS31FL3737_write_pwm_buffer(addr1, g_pwm_buffer[0]);
-        // IS31FL3737_write_pwm_buffer(addr2, g_pwm_buffer[1]);
+        IS31FL3737_write_pwm_buffer(addr, g_pwm_buffer[index]);
     }
-    g_pwm_buffer_update_required = false;
+    g_pwm_buffer_update_required[index] = false;
 }
 
-void IS31FL3737_update_led_control_registers(uint8_t addr1, uint8_t addr2) {
-    if (g_led_control_registers_update_required) {
+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(addr1, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
-        IS31FL3737_write_register(addr1, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL);
+        IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+        IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL);
         for (int i = 0; i < 24; i++) {
-            IS31FL3737_write_register(addr1, i, g_led_control_registers[0][i]);
-            // IS31FL3737_write_register(addr2, i, g_led_control_registers[1][i]);
+            IS31FL3737_write_register(addr, i, g_led_control_registers[index][i]);
         }
-        g_led_control_registers_update_required = false;
     }
+    g_led_control_registers_update_required[index] = false;
 }