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>,
"schnitzeltony@gmail.com" <schnitzeltony@gmail.com>,
Robin Gong <yibin.gong@nxp.com>,
"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>,
"u.kleine-koenig@pengutronix.de" <u.kleine-koenig@pengutronix.de>
Cc: dl-linux-imx <linux-imx@nxp.com>
Subject: [PATCH V10 1/5] dt-bindings: pwm: Add i.MX TPM PWM binding
Date: Tue, 26 Mar 2019 06:52:23 +0000 [thread overview]
Message-ID: <1553582817-29519-2-git-send-email-Anson.Huang@nxp.com> (raw)
In-Reply-To: <1553582817-29519-1-git-send-email-Anson.Huang@nxp.com>
Add i.MX TPM(Low Power Timer/Pulse Width Modulation Module) PWM binding.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
Changes since V9:
- update compatible to contain SoC name;
- update example;
---
.../devicetree/bindings/pwm/imx-tpm-pwm.txt | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt
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..e9cc199
--- /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>;
+};
--
2.7.4
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next prev parent reply other threads:[~2019-03-26 6:52 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-26 6:52 [PATCH V10 0/5] Add i.MX7ULP EVK PWM backlight support Anson Huang
2019-03-26 6:52 ` Anson Huang [this message]
2019-03-28 16:51 ` [PATCH V10 1/5] dt-bindings: pwm: Add i.MX TPM PWM binding Rob Herring
2019-03-26 6:52 ` [PATCH V10 2/5] pwm: Add i.MX TPM PWM driver support Anson Huang
2019-03-28 19:36 ` Uwe Kleine-König
2019-04-09 6:47 ` Uwe Kleine-König
2019-04-09 8:51 ` [EXT] " Anson Huang
2019-04-09 9:28 ` Uwe Kleine-König
2019-04-09 12:04 ` Anson Huang
2019-04-09 12:10 ` Anson Huang
2019-03-26 6:52 ` [PATCH V10 3/5] ARM: imx_v6_v7_defconfig: Add TPM PWM support by default Anson Huang
2019-03-26 6:52 ` [PATCH V10 4/5] ARM: dts: imx7ulp: Add tpm pwm support Anson Huang
2019-03-26 6:53 ` [PATCH V10 5/5] ARM: dts: imx7ulp-evk: Add backlight support Anson Huang
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