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refactor(boards): Move to pinctrl.

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This commit is contained in:
Peter Johanson
2022-11-05 00:35:58 -04:00
committed by Pete Johanson
parent 518f9a550f
commit 1493620bf7
89 changed files with 1981 additions and 376 deletions
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docs/docs/features/underglow.md
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@@ -54,23 +54,33 @@ For example, the Kyria shield has a `boards/nice_nano.overlay` file that defines
With nRF52 boards, you can just use `&spi1` and define the pins you want to use.
To identify which pin number you need to put in the config you need do to a bit of math. You need the hardware port and run it through a function.
**32 \* X + Y** = `<Pin number>` where X is first part of the hardware port "PX.01" and Y is the second part of the hardware port "P1.Y".
(_P1.13_ would give you _32 \* 1 + 13_ = `<45>` and P0.15 would give you _32 \* 0 + 15_ = `<15>`)
Here's an example on a definition that uses P0.06:
```
#include <dt-bindings/led/led.h>
&pinctrl {
spi1_default: spi1_default {
group1 {
psels = <NRF_PSEL(SPIM_MOSI, 0, 6)>;
};
};
spi1_sleep: spi1_sleep {
group1 {
psels = <NRF_PSEL(SPIM_MOSI, 0, 6)>;
low-power-enable;
};
};
};
&spi1 {
compatible = "nordic,nrf-spim";
status = "okay";
mosi-pin = <6>;
// Unused pins, needed for SPI definition, but not used by the ws2812 driver itself.
sck-pin = <5>;
miso-pin = <7>;
pinctrl-0 = <&spi1_default>;
pinctrl-1 = <&spi1_sleep>;
pinctrl-names = "default", "sleep";
led_strip: ws2812@0 {
compatible = "worldsemi,ws2812-spi";