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dts: esp32s3: add PCNT device

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Add PCNT node device to esp32s3
Update PCNT binding to include esp32s3

Signed-off-by: Lucas Tamborrino <lucas.tamborrino@espressif.com>
This commit is contained in:
Lucas Tamborrino 2023-02-23 10:56:32 -03:00 committed by Maureen Helm
parent f8d747f85c
commit 2c1da15e35
3 changed files with 15 additions and 2 deletions
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4
boards/xtensa/esp32s3_devkitm/doc/index.rst
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@ -100,6 +100,10 @@ Current Zephyr's ESP32-S3-DevKitM board supports the following features:
+------------+------------+-------------------------------------+
| LEDC | on-chip | pwm |
+------------+------------+-------------------------------------+
| MCPWM | on-chip | pwm |
+------------+------------+-------------------------------------+
| PCNT | on-chip | qdec |
+------------+------------+-------------------------------------+
Prerequisites
-------------

4
dts/bindings/sensor/espressif,esp32-pcnt.yaml
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@ -9,7 +9,7 @@ description: |
rising and/or falling edges of an input signal.
The ESP32's PCNT module has 8 independent counting “units” numbered from 0 to 7.
The ESP32S2's PCNT module has 4 independent counting “units” numbered from 0 to 3.
ESP32S2 and ESP32S3 have 4 independent counting “units” numbered from 0 to 3.
Each pulse counter unit has a 16-bit signed counter register.
@ -88,7 +88,7 @@ child-binding:
description: |
The PCNT unit index.
The ESP32 has 8 PCNT units. ESP32S2 has 4 PCNT units.
The ESP32 has 8 PCNT units. ESP32S2/S3 have 4 PCNT units.
filter:
type: int

9
dts/xtensa/espressif/esp32s3.dtsi
View file

@ -286,5 +286,14 @@
#pwm-cells = <3>;
status = "disabled";
};
pcnt: pcnt@60017000 {
compatible = "espressif,esp32-pcnt";
reg = <0x60017000 DT_SIZE_K(4)>;
interrupts = <PCNT_INTR_SOURCE>;
interrupt-parent = <&intc>;
clocks = <&rtc ESP32_PCNT_MODULE>;
status = "disabled";
};
};
};