dt-bindings: pwm: Add AXI PWM generator

Add Analog Devices AXI PWM generator.

Link: https://analogdevicesinc.github.io/hdl/library/axi_pwm_gen/index.html
Signed-off-by: Drew Fustini <dfustini@baylibre.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Nuno Sa <nuno.sa@analog.com>
Co-developed-by: Trevor Gamblin <tgamblin@baylibre.com>
Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>
Link: https://lore.kernel.org/r/20240605203507.1934434-2-tgamblin@baylibre.com
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>

diff --git a/Documentation/devicetree/bindings/pwm/adi,axi-pwmgen.yaml b/Documentation/devicetree/bindings/pwm/adi,axi-pwmgen.yaml
new file mode 100644 (file)
index 0000000..ec6115d
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/adi,axi-pwmgen.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/adi,axi-pwmgen.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AXI PWM generator
+
+maintainers:
+  - Michael Hennerich <Michael.Hennerich@analog.com>
+  - Nuno Sá <nuno.sa@analog.com>
+
+description:
+  The Analog Devices AXI PWM generator can generate PWM signals
+  with variable pulse width and period.
+
+  https://wiki.analog.com/resources/fpga/docs/axi_pwm_gen
+
+allOf:
+  - $ref: pwm.yaml#
+
+properties:
+  compatible:
+    const: adi,axi-pwmgen-2.00.a
+
+  reg:
+    maxItems: 1
+
+  "#pwm-cells":
+    const: 2
+
+  clocks:
+    maxItems: 1
+
+required:
+  - reg
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    pwm@44b00000 {
+       compatible = "adi,axi-pwmgen-2.00.a";
+       reg = <0x44b00000 0x1000>;
+       clocks = <&spi_clk>;
+       #pwm-cells = <2>;
+    };

diff --git a/MAINTAINERS b/MAINTAINERS
index d6c90161c7bfe3886e675396cb2d2d7b44acc3b3..09c61e0b614ed553f6dc4f809ac25ba410b07e54 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3571,6 +3571,14 @@ W:       https://ez.analog.com/linux-software-drivers
 F:     Documentation/devicetree/bindings/spi/adi,axi-spi-engine.yaml
 F:     drivers/spi/spi-axi-spi-engine.c
 
+AXI PWM GENERATOR
+M:     Michael Hennerich <michael.hennerich@analog.com>
+M:     Nuno Sá <nuno.sa@analog.com>
+L:     linux-pwm@vger.kernel.org
+S:     Supported
+W:     https://ez.analog.com/linux-software-drivers
+F:     Documentation/devicetree/bindings/pwm/adi,axi-pwmgen.yaml
+
 AXXIA I2C CONTROLLER
 M:     Krzysztof Adamski <krzysztof.adamski@nokia.com>
 L:     linux-i2c@vger.kernel.org