Add Loongson PWM controller binding with DT schema format using json-schema. Signed-off-by: Binbin Zhou <zhoubinbin@xxxxxxxxxxx> --- .../devicetree/bindings/pwm/pwm-loongson.yaml | 64 +++++++++++++++++++ MAINTAINERS | 6 ++ 2 files changed, 70 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/pwm-loongson.yaml diff --git a/Documentation/devicetree/bindings/pwm/pwm-loongson.yaml b/Documentation/devicetree/bindings/pwm/pwm-loongson.yaml new file mode 100644 index 000000000000..d25904468353 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/pwm-loongson.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/pwm-loongson.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Loongson PWM Controller + +maintainers: + - Binbin Zhou <zhoubinbin@xxxxxxxxxxx> + +description: + It is the generic PWM framework driver for Loongson family. + Each PWM has one pulse width output signal and one pulse input + signal to be measured. + It can be found on Loongson-2K series cpus and Loongson LS7A bridge chips. + +allOf: + - $ref: pwm.yaml# + +properties: + compatible: + oneOf: + - const: loongson,ls7a-pwm + - items: + - enum: + - loongson,ls2k0500-pwm + - loongson,ls2k1000-pwm + - loongson,ls2k2000-pwm + - const: loongson,ls7a-pwm + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + '#pwm-cells': + const: 3 + +required: + - compatible + - reg + - interrupts + - clocks + - '#pwm-cells' + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/clock/loongson,ls2k-clk.h> + pwm@1fe22000 { + compatible = "loongson,ls2k1000-pwm", "loongson,ls7a-pwm"; + reg = <0x1fe22000 0x10>; + interrupt-parent = <&liointc0>; + interrupts = <24 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk LOONGSON2_APB_CLK>; + #pwm-cells = <3>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 96496dbcae6d..9c4f3186e7f4 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12753,6 +12753,12 @@ S: Maintained F: Documentation/devicetree/bindings/i2c/loongson,ls2x-i2c.yaml F: drivers/i2c/busses/i2c-ls2x.c +LOONGSON PWM DRIVER +M: Binbin Zhou <zhoubinbin@xxxxxxxxxxx> +L: linux-pwm@xxxxxxxxxxxxxxx +S: Maintained +F: Documentation/devicetree/bindings/pwm/pwm-loongson.yaml + LOONGSON-2 SOC SERIES CLOCK DRIVER M: Yinbo Zhu <zhuyinbo@xxxxxxxxxxx> L: linux-clk@xxxxxxxxxxxxxxx -- 2.43.0
