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From: William Qiu <william.qiu@starfivetech.com>
To: <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-riscv@lists.infradead.org>, <linux-pwm@vger.kernel.org>
Cc: "Emil Renner Berthing" <kernel@esmil.dk>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Philipp Zabel" <p.zabel@pengutronix.de>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
	"Conor Dooley" <conor+dt@kernel.org>,
	"Paul Walmsley" <paul.walmsley@sifive.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Albert Ou" <aou@eecs.berkeley.edu>,
	"Hal Feng" <hal.feng@starfivetech.com>,
	"William Qiu" <william.qiu@starfivetech.com>
Subject: [RFC v4 4/4] riscv: dts: starfive: jh7100: Add PWM node and pins configuration
Date: Fri, 25 Aug 2023 16:13:28 +0800	[thread overview]
Message-ID: <20230825081328.204442-5-william.qiu@starfivetech.com> (raw)
In-Reply-To: <20230825081328.204442-1-william.qiu@starfivetech.com>

Add StarFive JH7100 PWM controller node and add PWM pins configuration
on VisionFive 2 board.

Signed-off-by: William Qiu <william.qiu@starfivetech.com>
---
 .../boot/dts/starfive/jh7100-common.dtsi      | 24 +++++++++++++++++++
 arch/riscv/boot/dts/starfive/jh7100.dtsi      |  9 +++++++
 2 files changed, 33 insertions(+)

diff --git a/arch/riscv/boot/dts/starfive/jh7100-common.dtsi b/arch/riscv/boot/dts/starfive/jh7100-common.dtsi
index b93ce351a90f..746867b882b0 100644
--- a/arch/riscv/boot/dts/starfive/jh7100-common.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7100-common.dtsi
@@ -84,6 +84,24 @@ GPO_I2C2_PAD_SDA_OEN,
 		};
 	};

+	pwm_pins: pwm-0 {
+		pwm-pins {
+			pinmux = <GPIOMUX(7,
+				  GPO_PWM_PAD_OUT_BIT0,
+				  GPO_PWM_PAD_OE_N_BIT0,
+				  GPI_NONE)>,
+				 <GPIOMUX(5,
+				  GPO_PWM_PAD_OUT_BIT1,
+				  GPO_PWM_PAD_OE_N_BIT1,
+				  GPI_NONE)>;
+			bias-disable;
+			drive-strength = <35>;
+			input-disable;
+			input-schmitt-disable;
+			slew-rate = <0>;
+		};
+	};
+
 	uart3_pins: uart3-0 {
 		rx-pins {
 			pinmux = <GPIOMUX(13, GPO_LOW, GPO_DISABLE,
@@ -154,6 +172,12 @@ &osc_aud {
 	clock-frequency = <27000000>;
 };

+&ptc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm_pins>;
+	status = "okay";
+};
+
 &uart3 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart3_pins>;
diff --git a/arch/riscv/boot/dts/starfive/jh7100.dtsi b/arch/riscv/boot/dts/starfive/jh7100.dtsi
index 4218621ea3b9..7f5bb19e636e 100644
--- a/arch/riscv/boot/dts/starfive/jh7100.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7100.dtsi
@@ -248,5 +248,14 @@ watchdog@12480000 {
 			resets = <&rstgen JH7100_RSTN_WDTIMER_APB>,
 				 <&rstgen JH7100_RSTN_WDT>;
 		};
+
+		ptc: pwm@12490000 {
+			compatible = "starfive,jh7100-pwm";
+			reg = <0x0 0x12490000 0x0 0x10000>;
+			clocks = <&clkgen JH7100_CLK_PWM_APB>;
+			resets = <&rstgen JH7100_RSTN_PWM_APB>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
 	};
 };
--
2.34.1


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  parent reply	other threads:[~2023-08-25  8:14 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-25  8:13 [RFC v4 0/4] StarFive's Pulse Width Modulation driver support William Qiu
2023-08-25  8:13 ` [RFC v4 1/4] dt-bindings: pwm: Add StarFive PWM module William Qiu
2023-08-25  8:13 ` [RFC v4 2/4] pwm: starfive: Add PWM driver support William Qiu
2023-09-12 15:04   ` Emil Renner Berthing
2023-09-13 10:57     ` William Qiu
2023-08-25  8:13 ` [RFC v4 3/4] riscv: dts: starfive: jh7110: Add PWM node and pins configuration William Qiu
2023-08-25  8:13 ` William Qiu [this message]
2023-08-29  7:44   ` [RFC v4 4/4] riscv: dts: starfive: jh7100: " Hal Feng
2023-08-29  9:38   ` Emil Renner Berthing
2023-08-29  9:41     ` William Qiu
2023-08-25 15:06 ` [RFC v4 0/4] StarFive's Pulse Width Modulation driver support Conor Dooley
2023-08-28  7:12   ` Hal Feng
2023-08-28  7:16     ` Krzysztof Kozlowski
2023-08-28  7:47       ` Hal Feng

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