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samples: drivers led strip ws2812 overlay for stm32 nucleo

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The spi node of the led_ws2812 now includes the frame format
as defined by the dts bindings spi-device.yaml
SPI_FRAME_FORMAT_TI is selected with overlay for target boards.

Signed-off-by: Francois Ramu <francois.ramu@st.com>
This commit is contained in:
Francois Ramu 2021-12-02 18:29:24 +01:00 • committed by Anas Nashif
commit ff34965a0a
3 changed files with 35 additions and 0 deletions
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1
samples/drivers/led_ws2812/boards/nucleo_f070rb.overlay
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@ -19,6 +19,7 @@
/* SPI */
reg = <0>; /* ignored, but necessary for SPI bindings */
spi-max-frequency = <B1414_SPI_FREQ>;
frame-format = <32768>; /* SPI_FRAME_FORMAT_TI */
/* B1414 */
chain-length = <18>; /* arbitrary; change at will */

33
samples/drivers/led_ws2812/boards/nucleo_g071rb.overlay Normal file
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@ -0,0 +1,33 @@
/*
* Copyright (c) 2021, STMicroelectronics
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <dt-bindings/led/led.h>
&arduino_spi {
led_strip: ws2812@0 {
compatible = "worldsemi,ws2812-spi";
label = "WS2812";
/* SPI */
reg = <0>; /* ignored, but necessary for SPI bindings */
spi-max-frequency = <4000000>;
frame-format = <32768>; /* SPI_FRAME_FORMAT_TI */
/* WS2812 */
chain-length = <16>; /* arbitrary; change at will */
spi-one-frame = <0x70>;
spi-zero-frame = <0x40>;
color-mapping = <LED_COLOR_ID_GREEN
LED_COLOR_ID_RED
LED_COLOR_ID_BLUE>;
};
};
/ {
aliases {
led-strip = &led_strip;
};
};

1
samples/drivers/led_ws2812/boards/nucleo_l476rg.overlay
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@ -14,6 +14,7 @@
/* SPI */
reg = <0>; /* ignored, but necessary for SPI bindings */
spi-max-frequency = <4000000>;
frame-format = <32768>; /* SPI_FRAME_FORMAT_TI */
/* WS2812 */
chain-length = <16>; /* arbitrary; change at will */