LED drivers: clean up SWx/CSy pullup/down resistor config (qmk#22381

)
future-figs · Dec 27, 2023 · 35061dc · 35061dc
1 parent bbb21da
commit 35061dc
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Showing 18 changed files with 302 additions and 218 deletions.
diff --git a/drivers/led/issi/is31fl3733-simple.c b/drivers/led/issi/is31fl3733-simple.c
@@ -36,8 +36,8 @@
 #define IS31FL3733_REG_CONFIGURATION 0x00 // PG3
 #define IS31FL3733_REG_GLOBALCURRENT 0x01 // PG3
 #define IS31FL3733_REG_RESET 0x11         // PG3
-#define IS31FL3733_REG_SWPULLUP 0x0F      // PG3
-#define IS31FL3733_REG_CSPULLUP 0x10      // PG3
+#define IS31FL3733_REG_SW_PULLUP 0x0F     // PG3
+#define IS31FL3733_REG_CS_PULLDOWN 0x10   // PG3
 
 #define IS31FL3733_PWM_REGISTER_COUNT 192
 #define IS31FL3733_LED_CONTROL_REGISTER_COUNT 24
@@ -54,12 +54,12 @@
 #    define IS31FL3733_PWM_FREQUENCY IS31FL3733_PWM_FREQUENCY_8K4_HZ // PFS - IS31FL3733B only
 #endif
 
-#ifndef IS31FL3733_SWPULLUP
-#    define IS31FL3733_SWPULLUP IS31FL3733_PUR_0R
+#ifndef IS31FL3733_SW_PULLUP
+#    define IS31FL3733_SW_PULLUP IS31FL3733_PUR_0_OHM
 #endif
 
-#ifndef IS31FL3733_CSPULLUP
-#    define IS31FL3733_CSPULLUP IS31FL3733_PUR_0R
+#ifndef IS31FL3733_CS_PULLDOWN
+#    define IS31FL3733_CSPULLDOWN IS31FL3733_PDR_0_OHM
 #endif
 
 #ifndef IS31FL3733_GLOBALCURRENT
@@ -206,9 +206,9 @@ void is31fl3733_init(uint8_t addr, uint8_t sync) {
     // Select PG3
     is31fl3733_write_register(addr, IS31FL3733_COMMANDREGISTER, IS31FL3733_PAGE_FUNCTION);
     // Set de-ghost pull-up resistors (SWx)
-    is31fl3733_write_register(addr, IS31FL3733_REG_SWPULLUP, IS31FL3733_SWPULLUP);
+    is31fl3733_write_register(addr, IS31FL3733_REG_SW_PULLUP, IS31FL3733_SW_PULLUP);
     // Set de-ghost pull-down resistors (CSx)
-    is31fl3733_write_register(addr, IS31FL3733_REG_CSPULLUP, IS31FL3733_CSPULLUP);
+    is31fl3733_write_register(addr, IS31FL3733_REG_CS_PULLDOWN, IS31FL3733_CS_PULLDOWN);
     // Set global current to maximum.
     is31fl3733_write_register(addr, IS31FL3733_REG_GLOBALCURRENT, IS31FL3733_GLOBALCURRENT);
     // Disable software shutdown.

diff --git a/drivers/led/issi/is31fl3733-simple.h b/drivers/led/issi/is31fl3733-simple.h
@@ -39,10 +39,10 @@
 #    define IS31FL3733_PWM_FREQUENCY ISSI_PWM_FREQUENCY
 #endif
 #ifdef ISSI_SWPULLUP
-#    define IS31FL3733_SWPULLUP ISSI_SWPULLUP
+#    define IS31FL3733_SW_PULLUP ISSI_SWPULLUP
 #endif
 #ifdef ISSI_CSPULLUP
-#    define IS31FL3733_CSPULLUP ISSI_CSPULLUP
+#    define IS31FL3733_CS_PULLDOWN ISSI_CSPULLUP
 #endif
 #ifdef ISSI_GLOBALCURRENT
 #    define IS31FL3733_GLOBALCURRENT ISSI_GLOBALCURRENT
@@ -51,13 +51,13 @@
 #define is31_led is31fl3733_led_t
 #define g_is31_leds g_is31fl3733_leds
 
-#define PUR_0R IS31FL3733_PUR_0R
-#define PUR_05KR IS31FL3733_PUR_05KR
-#define PUR_3KR IS31FL3733_PUR_3KR
-#define PUR_4KR IS31FL3733_PUR_4KR
-#define PUR_8KR IS31FL3733_PUR_8KR
-#define PUR_16KR IS31FL3733_PUR_16KR
-#define PUR_32KR IS31FL3733_PUR_32KR
+#define PUR_0R IS31FL3733_PUR_0_OHM
+#define PUR_05KR IS31FL3733_PUR_1K_OHM
+#define PUR_3KR IS31FL3733_PUR_2K_OHM
+#define PUR_4KR IS31FL3733_PUR_4K_OHM
+#define PUR_8KR IS31FL3733_PUR_8K_OHM
+#define PUR_16KR IS31FL3733_PUR_16K_OHM
+#define PUR_32KR IS31FL3733_PUR_32K_OHM
 // ========
 
 #define IS31FL3733_I2C_ADDRESS_GND_GND 0x50
@@ -107,13 +107,23 @@ void is31fl3733_update_led_control_registers(uint8_t addr, uint8_t index);
 
 void is31fl3733_flush(void);
 
-#define IS31FL3733_PUR_0R 0x00   // No PUR resistor
-#define IS31FL3733_PUR_05KR 0x02 // 0.5k Ohm resistor in t_NOL
-#define IS31FL3733_PUR_3KR 0x03  // 3.0k Ohm resistor on all the time
-#define IS31FL3733_PUR_4KR 0x04  // 4.0k Ohm resistor on all the time
-#define IS31FL3733_PUR_8KR 0x05  // 8.0k Ohm resistor on all the time
-#define IS31FL3733_PUR_16KR 0x06 // 16k Ohm resistor on all the time
-#define IS31FL3733_PUR_32KR 0x07 // 32k Ohm resistor in t_NOL
+#define IS31FL3733_PDR_0_OHM 0b000   // No pull-down resistor
+#define IS31FL3733_PDR_0K5_OHM 0b001 // 0.5 kOhm resistor
+#define IS31FL3733_PDR_1K_OHM 0b010  // 1 kOhm resistor
+#define IS31FL3733_PDR_2K_OHM 0b011  // 2 kOhm resistor
+#define IS31FL3733_PDR_4K_OHM 0b100  // 4 kOhm resistor
+#define IS31FL3733_PDR_8K_OHM 0b101  // 8 kOhm resistor
+#define IS31FL3733_PDR_16K_OHM 0b110 // 16 kOhm resistor
+#define IS31FL3733_PDR_32K_OHM 0b111 // 32 kOhm resistor
+
+#define IS31FL3733_PUR_0_OHM 0b000   // No pull-up resistor
+#define IS31FL3733_PUR_0K5_OHM 0b001 // 0.5 kOhm resistor
+#define IS31FL3733_PUR_1K_OHM 0b010  // 1 kOhm resistor
+#define IS31FL3733_PUR_2K_OHM 0b011  // 2 kOhm resistor
+#define IS31FL3733_PUR_4K_OHM 0b100  // 4 kOhm resistor
+#define IS31FL3733_PUR_8K_OHM 0b101  // 8 kOhm resistor
+#define IS31FL3733_PUR_16K_OHM 0b110 // 16 kOhm resistor
+#define IS31FL3733_PUR_32K_OHM 0b111 // 32 kOhm resistor
 
 #define IS31FL3733_PWM_FREQUENCY_8K4_HZ 0b000
 #define IS31FL3733_PWM_FREQUENCY_4K2_HZ 0b001

diff --git a/drivers/led/issi/is31fl3733.c b/drivers/led/issi/is31fl3733.c
@@ -35,8 +35,8 @@
 #define IS31FL3733_REG_CONFIGURATION 0x00 // PG3
 #define IS31FL3733_REG_GLOBALCURRENT 0x01 // PG3
 #define IS31FL3733_REG_RESET 0x11         // PG3
-#define IS31FL3733_REG_SWPULLUP 0x0F      // PG3
-#define IS31FL3733_REG_CSPULLUP 0x10      // PG3
+#define IS31FL3733_REG_SW_PULLUP 0x0F     // PG3
+#define IS31FL3733_REG_CS_PULLDOWN 0x10   // PG3
 
 #define IS31FL3733_PWM_REGISTER_COUNT 192
 #define IS31FL3733_LED_CONTROL_REGISTER_COUNT 24
@@ -53,12 +53,12 @@
 #    define IS31FL3733_PWM_FREQUENCY IS31FL3733_PWM_FREQUENCY_8K4_HZ // PFS - IS31FL3733B only
 #endif
 
-#ifndef IS31FL3733_SWPULLUP
-#    define IS31FL3733_SWPULLUP IS31FL3733_PUR_0R
+#ifndef IS31FL3733_SW_PULLUP
+#    define IS31FL3733_SW_PULLUP IS31FL3733_PUR_0_OHM
 #endif
 
-#ifndef IS31FL3733_CSPULLUP
-#    define IS31FL3733_CSPULLUP IS31FL3733_PUR_0R
+#ifndef IS31FL3733_CS_PULLDOWN
+#    define IS31FL3733_CS_PULLDOWN IS31FL3733_PDR_0_OHM
 #endif
 
 #ifndef IS31FL3733_GLOBALCURRENT
@@ -205,9 +205,9 @@ void is31fl3733_init(uint8_t addr, uint8_t sync) {
     // Select PG3
     is31fl3733_write_register(addr, IS31FL3733_COMMANDREGISTER, IS31FL3733_PAGE_FUNCTION);
     // Set de-ghost pull-up resistors (SWx)
-    is31fl3733_write_register(addr, IS31FL3733_REG_SWPULLUP, IS31FL3733_SWPULLUP);
+    is31fl3733_write_register(addr, IS31FL3733_REG_SW_PULLUP, IS31FL3733_SW_PULLUP);
     // Set de-ghost pull-down resistors (CSx)
-    is31fl3733_write_register(addr, IS31FL3733_REG_CSPULLUP, IS31FL3733_CSPULLUP);
+    is31fl3733_write_register(addr, IS31FL3733_REG_CS_PULLDOWN, IS31FL3733_CS_PULLDOWN);
     // Set global current to maximum.
     is31fl3733_write_register(addr, IS31FL3733_REG_GLOBALCURRENT, IS31FL3733_GLOBALCURRENT);
     // Disable software shutdown.

diff --git a/drivers/led/issi/is31fl3733.h b/drivers/led/issi/is31fl3733.h
@@ -62,10 +62,10 @@
 #    define IS31FL3733_PWM_FREQUENCY ISSI_PWM_FREQUENCY
 #endif
 #ifdef ISSI_SWPULLUP
-#    define IS31FL3733_SWPULLUP ISSI_SWPULLUP
+#    define IS31FL3733_SW_PULLUP ISSI_SWPULLUP
 #endif
 #ifdef ISSI_CSPULLUP
-#    define IS31FL3733_CSPULLUP ISSI_CSPULLUP
+#    define IS31FL3733_CS_PULLDOWN ISSI_CSPULLUP
 #endif
 #ifdef ISSI_GLOBALCURRENT
 #    define IS31FL3733_GLOBALCURRENT ISSI_GLOBALCURRENT
@@ -74,13 +74,13 @@
 #define is31_led is31fl3733_led_t
 #define g_is31_leds g_is31fl3733_leds
 
-#define PUR_0R IS31FL3733_PUR_0R
-#define PUR_05KR IS31FL3733_PUR_05KR
-#define PUR_3KR IS31FL3733_PUR_3KR
-#define PUR_4KR IS31FL3733_PUR_4KR
-#define PUR_8KR IS31FL3733_PUR_8KR
-#define PUR_16KR IS31FL3733_PUR_16KR
-#define PUR_32KR IS31FL3733_PUR_32KR
+#define PUR_0R IS31FL3733_PUR_0_OHM
+#define PUR_05KR IS31FL3733_PUR_1K_OHM
+#define PUR_3KR IS31FL3733_PUR_2K_OHM
+#define PUR_4KR IS31FL3733_PUR_4K_OHM
+#define PUR_8KR IS31FL3733_PUR_8K_OHM
+#define PUR_16KR IS31FL3733_PUR_16K_OHM
+#define PUR_32KR IS31FL3733_PUR_32K_OHM
 // ========
 
 #define IS31FL3733_I2C_ADDRESS_GND_GND 0x50
@@ -132,13 +132,23 @@ void is31fl3733_update_led_control_registers(uint8_t addr, uint8_t index);
 
 void is31fl3733_flush(void);
 
-#define IS31FL3733_PUR_0R 0x00   // No PUR resistor
-#define IS31FL3733_PUR_05KR 0x02 // 0.5k Ohm resistor in t_NOL
-#define IS31FL3733_PUR_3KR 0x03  // 3.0k Ohm resistor on all the time
-#define IS31FL3733_PUR_4KR 0x04  // 4.0k Ohm resistor on all the time
-#define IS31FL3733_PUR_8KR 0x05  // 8.0k Ohm resistor on all the time
-#define IS31FL3733_PUR_16KR 0x06 // 16k Ohm resistor on all the time
-#define IS31FL3733_PUR_32KR 0x07 // 32k Ohm resistor in t_NOL
+#define IS31FL3733_PDR_0_OHM 0b000   // No pull-down resistor
+#define IS31FL3733_PDR_0K5_OHM 0b001 // 0.5 kOhm resistor
+#define IS31FL3733_PDR_1K_OHM 0b010  // 1 kOhm resistor
+#define IS31FL3733_PDR_2K_OHM 0b011  // 2 kOhm resistor
+#define IS31FL3733_PDR_4K_OHM 0b100  // 4 kOhm resistor
+#define IS31FL3733_PDR_8K_OHM 0b101  // 8 kOhm resistor
+#define IS31FL3733_PDR_16K_OHM 0b110 // 16 kOhm resistor
+#define IS31FL3733_PDR_32K_OHM 0b111 // 32 kOhm resistor
+
+#define IS31FL3733_PUR_0_OHM 0b000   // No pull-up resistor
+#define IS31FL3733_PUR_0K5_OHM 0b001 // 0.5 kOhm resistor
+#define IS31FL3733_PUR_1K_OHM 0b010  // 1 kOhm resistor
+#define IS31FL3733_PUR_2K_OHM 0b011  // 2 kOhm resistor
+#define IS31FL3733_PUR_4K_OHM 0b100  // 4 kOhm resistor
+#define IS31FL3733_PUR_8K_OHM 0b101  // 8 kOhm resistor
+#define IS31FL3733_PUR_16K_OHM 0b110 // 16 kOhm resistor
+#define IS31FL3733_PUR_32K_OHM 0b111 // 32 kOhm resistor
 
 #define IS31FL3733_PWM_FREQUENCY_8K4_HZ 0b000
 #define IS31FL3733_PWM_FREQUENCY_4K2_HZ 0b001

diff --git a/drivers/led/issi/is31fl3736-simple.c b/drivers/led/issi/is31fl3736-simple.c
@@ -33,8 +33,8 @@
 #define IS31FL3736_REG_CONFIGURATION 0x00 // PG3
 #define IS31FL3736_REG_GLOBALCURRENT 0x01 // PG3
 #define IS31FL3736_REG_RESET 0x11         // PG3
-#define IS31FL3736_REG_SWPULLUP 0x0F      // PG3
-#define IS31FL3736_REG_CSPULLUP 0x10      // PG3
+#define IS31FL3736_REG_SW_PULLUP 0x0F     // PG3
+#define IS31FL3736_REG_CS_PULLDOWN 0x10   // PG3
 
 #define IS31FL3736_PWM_REGISTER_COUNT 192 // actually 96
 #define IS31FL3736_LED_CONTROL_REGISTER_COUNT 24
@@ -51,12 +51,12 @@
 #    define IS31FL3736_PWM_FREQUENCY IS31FL3736_PWM_FREQUENCY_8K4_HZ // PFS - IS31FL3736B only
 #endif
 
-#ifndef IS31FL3736_SWPULLUP
-#    define IS31FL3736_SWPULLUP IS31FL3736_PUR_0R
+#ifndef IS31FL3736_SW_PULLUP
+#    define IS31FL3736_SW_PULLUP IS31FL3736_PUR_0_OHM
 #endif
 
-#ifndef IS31FL3736_CSPULLUP
-#    define IS31FL3736_CSPULLUP IS31FL3736_PUR_0R
+#ifndef IS31FL3736_CS_PULLDOWN
+#    define IS31FL3736_CS_PULLDOWN IS31FL3736_PDR_0_OHM
 #endif
 
 #ifndef IS31FL3736_GLOBALCURRENT
@@ -178,9 +178,9 @@ void is31fl3736_init(uint8_t addr) {
     // Select PG3
     is31fl3736_write_register(addr, IS31FL3736_COMMANDREGISTER, IS31FL3736_PAGE_FUNCTION);
     // Set de-ghost pull-up resistors (SWx)
-    is31fl3736_write_register(addr, IS31FL3736_REG_SWPULLUP, IS31FL3736_SWPULLUP);
+    is31fl3736_write_register(addr, IS31FL3736_REG_SW_PULLUP, IS31FL3736_SW_PULLUP);
     // Set de-ghost pull-down resistors (CSx)
-    is31fl3736_write_register(addr, IS31FL3736_REG_CSPULLUP, IS31FL3736_CSPULLUP);
+    is31fl3736_write_register(addr, IS31FL3736_REG_CS_PULLDOWN, IS31FL3736_CS_PULLDOWN);
     // Set global current to maximum.
     is31fl3736_write_register(addr, IS31FL3736_REG_GLOBALCURRENT, IS31FL3736_GLOBALCURRENT);
     // Disable software shutdown.

diff --git a/drivers/led/issi/is31fl3736-simple.h b/drivers/led/issi/is31fl3736-simple.h
@@ -33,10 +33,10 @@
 #    define IS31FL3736_I2C_PERSISTENCE ISSI_PERSISTENCE
 #endif
 #ifdef ISSI_SWPULLUP
-#    define IS31FL3736_SWPULLUP ISSI_SWPULLUP
+#    define IS31FL3736_SW_PULLUP ISSI_SWPULLUP
 #endif
 #ifdef ISSI_CSPULLUP
-#    define IS31FL3736_CSPULLUP ISSI_CSPULLUP
+#    define IS31FL3736_CS_PULLDOWN ISSI_CSPULLUP
 #endif
 #ifdef ISSI_GLOBALCURRENT
 #    define IS31FL3736_GLOBALCURRENT ISSI_GLOBALCURRENT
@@ -45,14 +45,14 @@
 #define is31_led is31fl3736_led_t
 #define g_is31_leds g_is31fl3736_leds
 
-#define PUR_0R IS31FL3736_PUR_0R
-#define PUR_05KR IS31FL3736_PUR_05KR
-#define PUR_1KR IS31FL3736_PUR_1KR
-#define PUR_2KR IS31FL3736_PUR_2KR
-#define PUR_4KR IS31FL3736_PUR_4KR
-#define PUR_8KR IS31FL3736_PUR_8KR
-#define PUR_16KR IS31FL3736_PUR_16KR
-#define PUR_32KR IS31FL3736_PUR_32KR
+#define PUR_0R IS31FL3736_PUR_0_OHM
+#define PUR_05KR IS31FL3736_PUR_05K_OHM
+#define PUR_1KR IS31FL3736_PUR_1K_OHM
+#define PUR_2KR IS31FL3736_PUR_2K_OHM
+#define PUR_4KR IS31FL3736_PUR_4K_OHM
+#define PUR_8KR IS31FL3736_PUR_8K_OHM
+#define PUR_16KR IS31FL3736_PUR_16K_OHM
+#define PUR_32KR IS31FL3736_PUR_32K_OHM
 // ========
 
 #define IS31FL3736_I2C_ADDRESS_GND_GND 0x50
@@ -102,14 +102,23 @@ void is31fl3736_update_led_control_registers(uint8_t addr, uint8_t index);
 
 void is31fl3736_flush(void);
 
-#define IS31FL3736_PUR_0R 0x00   // No PUR resistor
-#define IS31FL3736_PUR_05KR 0x01 // 0.5k Ohm resistor
-#define IS31FL3736_PUR_1KR 0x02  // 1.0k Ohm resistor
-#define IS31FL3736_PUR_2KR 0x03  // 2.0k Ohm resistor
-#define IS31FL3736_PUR_4KR 0x04  // 4.0k Ohm resistor
-#define IS31FL3736_PUR_8KR 0x05  // 8.0k Ohm resistor
-#define IS31FL3736_PUR_16KR 0x06 // 16k Ohm resistor
-#define IS31FL3736_PUR_32KR 0x07 // 32k Ohm resistor
+#define IS31FL3736_PDR_0_OHM 0b000   // No pull-down resistor
+#define IS31FL3736_PDR_0K5_OHM 0b001 // 0.5 kOhm resistor
+#define IS31FL3736_PDR_1K_OHM 0b010  // 1 kOhm resistor
+#define IS31FL3736_PDR_2K_OHM 0b011  // 2 kOhm resistor
+#define IS31FL3736_PDR_4K_OHM 0b100  // 4 kOhm resistor
+#define IS31FL3736_PDR_8K_OHM 0b101  // 8 kOhm resistor
+#define IS31FL3736_PDR_16K_OHM 0b110 // 16 kOhm resistor
+#define IS31FL3736_PDR_32K_OHM 0b111 // 32 kOhm resistor
+
+#define IS31FL3736_PUR_0_OHM 0b000   // No pull-up resistor
+#define IS31FL3736_PUR_0K5_OHM 0b001 // 0.5 kOhm resistor
+#define IS31FL3736_PUR_1K_OHM 0b010  // 1 kOhm resistor
+#define IS31FL3736_PUR_2K_OHM 0b011  // 2 kOhm resistor
+#define IS31FL3736_PUR_4K_OHM 0b100  // 4 kOhm resistor
+#define IS31FL3736_PUR_8K_OHM 0b101  // 8 kOhm resistor
+#define IS31FL3736_PUR_16K_OHM 0b110 // 16 kOhm resistor
+#define IS31FL3736_PUR_32K_OHM 0b111 // 32 kOhm resistor
 
 #define IS31FL3736_PWM_FREQUENCY_8K4_HZ 0b000
 #define IS31FL3736_PWM_FREQUENCY_4K2_HZ 0b001

diff --git a/drivers/led/issi/is31fl3736.c b/drivers/led/issi/is31fl3736.c
@@ -33,8 +33,8 @@
 #define IS31FL3736_REG_CONFIGURATION 0x00 // PG3
 #define IS31FL3736_REG_GLOBALCURRENT 0x01 // PG3
 #define IS31FL3736_REG_RESET 0x11         // PG3
-#define IS31FL3736_REG_SWPULLUP 0x0F      // PG3
-#define IS31FL3736_REG_CSPULLUP 0x10      // PG3
+#define IS31FL3736_REG_SW_PULLUP 0x0F     // PG3
+#define IS31FL3736_REG_CS_PULLDOWN 0x10   // PG3
 
 #define IS31FL3736_PWM_REGISTER_COUNT 192 // actually 96
 #define IS31FL3736_LED_CONTROL_REGISTER_COUNT 24
@@ -51,12 +51,12 @@
 #    define IS31FL3736_PWM_FREQUENCY IS31FL3736_PWM_FREQUENCY_8K4_HZ // PFS - IS31FL3736B only
 #endif
 
-#ifndef IS31FL3736_SWPULLUP
-#    define IS31FL3736_SWPULLUP IS31FL3736_PUR_0R
+#ifndef IS31FL3736_SW_PULLUP
+#    define IS31FL3736_SW_PULLUP IS31FL3736_PUR_0_OHM
 #endif
 
-#ifndef IS31FL3736_CSPULLUP
-#    define IS31FL3736_CSPULLUP IS31FL3736_PUR_0R
+#ifndef IS31FL3736_CS_PULLDOWN
+#    define IS31FL3736_CS_PULLDOWN IS31FL3736_PDR_0_OHM
 #endif
 
 #ifndef IS31FL3736_GLOBALCURRENT
@@ -178,9 +178,9 @@ void is31fl3736_init(uint8_t addr) {
     // Select PG3
     is31fl3736_write_register(addr, IS31FL3736_COMMANDREGISTER, IS31FL3736_PAGE_FUNCTION);
     // Set de-ghost pull-up resistors (SWx)
-    is31fl3736_write_register(addr, IS31FL3736_REG_SWPULLUP, IS31FL3736_SWPULLUP);
+    is31fl3736_write_register(addr, IS31FL3736_REG_SW_PULLUP, IS31FL3736_SW_PULLUP);
     // Set de-ghost pull-down resistors (CSx)
-    is31fl3736_write_register(addr, IS31FL3736_REG_CSPULLUP, IS31FL3736_CSPULLUP);
+    is31fl3736_write_register(addr, IS31FL3736_REG_CS_PULLDOWN, IS31FL3736_CS_PULLDOWN);
     // Set global current to maximum.
     is31fl3736_write_register(addr, IS31FL3736_REG_GLOBALCURRENT, IS31FL3736_GLOBALCURRENT);
     // Disable software shutdown.