Message ID | 1554860547-18237-2-git-send-email-Anson.Huang@nxp.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Wed, 10 Apr 2019 01:47:34 +0000 From: Anson Huang <anson.huang@nxp.com> To: "thierry.reding@gmail.com" <thierry.reding@gmail.com>, "robh+dt@kernel.org" <robh+dt@kernel.org>, "mark.rutland@arm.com" <mark.rutland@arm.com>, "shawnguo@kernel.org" <shawnguo@kernel.org>, "s.hauer@pengutronix.de" <s.hauer@pengutronix.de>, "kernel@pengutronix.de" <kernel@pengutronix.de>, "festevam@gmail.com" <festevam@gmail.com>, "linux@armlinux.org.uk" <linux@armlinux.org.uk>, "stefan@agner.ch" <stefan@agner.ch>, "otavio@ossystems.com.br" <otavio@ossystems.com.br>, Leonard Crestez <leonard.crestez@nxp.com>, Robin Gong <yibin.gong@nxp.com>, "u.kleine-koenig@pengutronix.de" <u.kleine-koenig@pengutronix.de>, "linux-pwm@vger.kernel.org" <linux-pwm@vger.kernel.org>, "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org> Subject: [PATCH V11 1/5] dt-bindings: pwm: Add i.MX TPM PWM binding Thread-Topic: [PATCH V11 1/5] dt-bindings: pwm: Add i.MX TPM PWM binding Thread-Index: AQHU7z9edm8y96fMfkmO0qtUJzaAHA== Date: Wed, 10 Apr 2019 01:47:34 +0000 Message-ID: <1554860547-18237-2-git-send-email-Anson.Huang@nxp.com> References: <1554860547-18237-1-git-send-email-Anson.Huang@nxp.com> In-Reply-To: <1554860547-18237-1-git-send-email-Anson.Huang@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.7.4 x-clientproxiedby: HK2P15301CA0004.APCP153.PROD.OUTLOOK.COM (2603:1096:202:1::14) To DB3PR0402MB3916.eurprd04.prod.outlook.com (2603:10a6:8:10::18) authentication-results: spf=none (sender IP is ) smtp.mailfrom=anson.huang@nxp.com; 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Add i.MX7ULP EVK PWM backlight support
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diff --git a/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt b/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt new file mode 100644 index 0000000..3ba958d --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt @@ -0,0 +1,22 @@ +Freescale i.MX TPM PWM controller + +Required properties: +- compatible : Should be "fsl,imx7ulp-pwm". +- reg: Physical base address and length of the controller's registers. +- #pwm-cells: Should be 3. See pwm.txt in this directory for a description of the cells format. +- clocks : The clock provided by the SoC to drive the PWM. +- interrupts: The interrupt for the PWM controller. + +Note: The TPM counter and period counter are shared between multiple channels, so all channels +should use same period setting. + +Example: + +tpm4: pwm@40250000 { + compatible = "fsl,imx7ulp-pwm"; + reg = <0x40250000 0x1000>; + assigned-clocks = <&pcc2 IMX7ULP_CLK_LPTPM4>; + assigned-clock-parents = <&scg1 IMX7ULP_CLK_SOSC_BUS_CLK>; + clocks = <&pcc2 IMX7ULP_CLK_LPTPM4>; + #pwm-cells = <3>; +};