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-rw-r--r--docs/feature_rgb_matrix.md1
-rw-r--r--drivers/led/issi/is31fl3737.c6
2 files changed, 6 insertions, 1 deletions
diff --git a/docs/feature_rgb_matrix.md b/docs/feature_rgb_matrix.md
index ec67e32078..2e88ae4727 100644
--- a/docs/feature_rgb_matrix.md
+++ b/docs/feature_rgb_matrix.md
@@ -172,6 +172,7 @@ Configure the hardware via your `config.h`:
| `ISSI_TIMEOUT` | (Optional) How long to wait for i2c messages, in milliseconds | 100 |
| `ISSI_PERSISTENCE` | (Optional) Retry failed messages this many times | 0 |
| `ISSI_PWM_FREQUENCY` | (Optional) PWM Frequency Setting - IS31FL3737B only | 0 |
+| `ISSI_GLOBALCURRENT` | (Optional) Configuration for the Global Current Register | 0xFF |
| `ISSI_SWPULLUP` | (Optional) Set the value of the SWx lines on-chip de-ghosting resistors | PUR_0R (Disabled) |
| `ISSI_CSPULLUP` | (Optional) Set the value of the CSx lines on-chip de-ghosting resistors | PUR_0R (Disabled) |
| `DRIVER_COUNT` | (Required) How many RGB driver IC's are present | |
diff --git a/drivers/led/issi/is31fl3737.c b/drivers/led/issi/is31fl3737.c
index bce0c34b2c..932530ac0a 100644
--- a/drivers/led/issi/is31fl3737.c
+++ b/drivers/led/issi/is31fl3737.c
@@ -69,6 +69,10 @@
# define ISSI_CSPULLUP PUR_0R
#endif
+#ifndef ISSI_GLOBALCURRENT
+# define ISSI_GLOBALCURRENT 0xFF
+#endif
+
// Transfer buffer for TWITransmitData()
uint8_t g_twi_transfer_buffer[20];
@@ -161,7 +165,7 @@ void IS31FL3737_init(uint8_t addr) {
// Set de-ghost pull-down resistors (CSx)
IS31FL3737_write_register(addr, ISSI_REG_CSPULLUP, ISSI_CSPULLUP);
// Set global current to maximum.
- IS31FL3737_write_register(addr, ISSI_REG_GLOBALCURRENT, 0xFF);
+ IS31FL3737_write_register(addr, ISSI_REG_GLOBALCURRENT, ISSI_GLOBALCURRENT);
// Disable software shutdown.
IS31FL3737_write_register(addr, ISSI_REG_CONFIGURATION, ((ISSI_PWM_FREQUENCY & 0b111) << 3) | 0x01);