From: Binbin Zhou <zhoubinbin@loongson.cn>
To: "Binbin Zhou" <zhoubb.aaron@gmail.com>,
"Huacai Chen" <chenhuacai@loongson.cn>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Rob Herring" <robh+dt@kernel.org>,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Juxin Gao" <gaojuxin@loongson.cn>
Cc: Huacai Chen <chenhuacai@kernel.org>,
loongson-kernel@lists.loongnix.cn, linux-pwm@vger.kernel.org,
devicetree@vger.kernel.org, Xuerui Wang <kernel@xen0n.name>,
loongarch@lists.linux.dev, Binbin Zhou <zhoubinbin@loongson.cn>
Subject: [PATCH v2 1/2] dt-bindings: pwm: Add Loongson PWM controller
Date: Thu, 11 Apr 2024 17:16:22 +0800 [thread overview]
Message-ID: <38c234d548b4b9c334cda6e7664a803896b31f6f.1712732719.git.zhoubinbin@loongson.cn> (raw)
In-Reply-To: <cover.1712732719.git.zhoubinbin@loongson.cn>
Add Loongson PWM controller binding with DT schema format using
json-schema.
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
---
.../bindings/pwm/loongson,ls7a-pwm.yaml | 66 +++++++++++++++++++
MAINTAINERS | 6 ++
2 files changed, 72 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pwm/loongson,ls7a-pwm.yaml
diff --git a/Documentation/devicetree/bindings/pwm/loongson,ls7a-pwm.yaml b/Documentation/devicetree/bindings/pwm/loongson,ls7a-pwm.yaml
new file mode 100644
index 000000000000..d7b6a34a8e09
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/loongson,ls7a-pwm.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/loongson,ls7a-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Loongson PWM Controller
+
+maintainers:
+ - Binbin Zhou <zhoubinbin@loongson.cn>
+
+description:
+ The Loongson 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':
+ description:
+ The first cell must have a value of 0, which specifies the PWM output signal;
+ The second cell is the period in nanoseconds;
+ The third cell flag supported by this binding is PWM_POLARITY_INVERTED.
+ const: 3
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+
+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 aea47e04c3a5..cd0d4e2d02ff 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12757,6 +12757,12 @@ 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@loongson.cn>
+L: linux-pwm@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/pwm/loongson,ls7a-pwm.yaml
+
LOONGSON-2 SOC SERIES CLOCK DRIVER
M: Yinbo Zhu <zhuyinbo@loongson.cn>
L: linux-clk@vger.kernel.org
--
2.43.0
next prev parent reply other threads:[~2024-04-11 9:16 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-11 9:16 [PATCH v2 0/2] pwm: Introduce pwm driver for the Loongson family chips Binbin Zhou
2024-04-11 9:16 ` Binbin Zhou [this message]
2024-04-11 10:26 ` [PATCH v2 1/2] dt-bindings: pwm: Add Loongson PWM controller Krzysztof Kozlowski
2024-04-11 11:01 ` Binbin Zhou
2024-04-11 11:07 ` Krzysztof Kozlowski
2024-04-11 14:35 ` Binbin Zhou
2024-04-11 14:44 ` Krzysztof Kozlowski
2024-04-11 15:21 ` Uwe Kleine-König
2024-04-11 19:10 ` Krzysztof Kozlowski
2024-04-11 19:12 ` Krzysztof Kozlowski
2024-04-11 9:16 ` [PATCH v2 2/2] pwm: Add Loongson PWM controller support Binbin Zhou
2024-04-12 6:47 ` Huacai Chen
2024-04-12 7:30 ` Binbin Zhou
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