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add the ability to change the pwm frequency for the IS31FL3737B (#16718)

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Simon 2022-03-24 19:08:22 +01:00 committed by GitHub
parent 706bceeff8
commit dc9eb21332
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2 changed files with 6 additions and 1 deletions
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1
docs/feature_rgb_matrix.md
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@ -171,6 +171,7 @@ 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_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 | |

6
drivers/led/issi/is31fl3737.c
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@ -57,6 +57,10 @@
# define ISSI_PERSISTENCE 0
#endif
#ifndef ISSI_PWM_FREQUENCY
# define ISSI_PWM_FREQUENCY 0b000 // PFS - IS31FL3737B only
#endif
#ifndef ISSI_SWPULLUP
# define ISSI_SWPULLUP PUR_0R
#endif
@ -159,7 +163,7 @@ void IS31FL3737_init(uint8_t addr) {
// Set global current to maximum.
IS31FL3737_write_register(addr, ISSI_REG_GLOBALCURRENT, 0xFF);
// Disable software shutdown.
IS31FL3737_write_register(addr, ISSI_REG_CONFIGURATION, 0x01);
IS31FL3737_write_register(addr, ISSI_REG_CONFIGURATION, ((ISSI_PWM_FREQUENCY & 0b111) << 3) | 0x01);
// Wait 10ms to ensure the device has woken up.
wait_ms(10);