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authorGigahawk <jasperchan515@gmail.com>2021-06-23 02:57:46 -0700
committerGitHub <noreply@github.com>2021-06-23 19:57:46 +1000
commit1ea01765e19bf84b9a09954443b7d64be2bec0c7 (patch)
treebc83579ed761f4c5a94ca918128b6d87097e855f
parent531f34d2a08312824e7906cfda24bb9127878ad8 (diff)
Allow settable SPI divisor for AW20216 driver, set default to 4 (#13309)
-rw-r--r--docs/feature_rgb_matrix.md1
-rw-r--r--drivers/awinic/aw20216.c6
2 files changed, 6 insertions, 1 deletions
diff --git a/docs/feature_rgb_matrix.md b/docs/feature_rgb_matrix.md
index 25ba3ffe32..925c9de6e4 100644
--- a/docs/feature_rgb_matrix.md
+++ b/docs/feature_rgb_matrix.md
@@ -250,6 +250,7 @@ You can use up to 2 AW20216 IC's. Do not specify `DRIVER_<N>_xxx` defines for IC
| `DRIVER_LED_TOTAL` | (Required) How many RGB lights are present across all drivers | |
| `AW_SCALING_MAX` | (Optional) LED current scaling value (0-255, higher values mean LED is brighter at full PWM) | 150 |
| `AW_GLOBAL_CURRENT_MAX` | (Optional) Driver global current limit (0-255, higher values means the driver may consume more power) | 150 |
+| `AW_SPI_DIVISOR` | (Optional) Clock divisor for SPI communication (powers of 2, smaller numbers means faster communication, should not be less than 4) | 4 |
Here is an example using 2 drivers.
diff --git a/drivers/awinic/aw20216.c b/drivers/awinic/aw20216.c
index 236c42a3cd..269bb3a59a 100644
--- a/drivers/awinic/aw20216.c
+++ b/drivers/awinic/aw20216.c
@@ -59,13 +59,17 @@
# define DRIVER_1_EN C13
#endif
+#ifndef AW_SPI_DIVISOR
+# define AW_SPI_DIVISOR 4
+#endif
+
uint8_t g_spi_transfer_buffer[20] = {0};
aw_led g_pwm_buffer[DRIVER_LED_TOTAL];
bool g_pwm_buffer_update_required[DRIVER_LED_TOTAL];
bool AW20216_write_register(pin_t slave_pin, uint8_t page, uint8_t reg, uint8_t data) {
// Do we need to call spi_stop() if this fails?
- if (!spi_start(slave_pin, false, 0, 16)) {
+ if (!spi_start(slave_pin, false, 0, AW_SPI_DIVISOR)) {
return false;
}