linux-kernel - [PATCH 3/7] add pwm-stm32 DT bindings

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Message-Id: <1479831207-32699-4-git-send-email-benjamin.gaignard@st.com>
Date:   Tue, 22 Nov 2016 17:13:23 +0100
From:   Benjamin Gaignard <benjamin.gaignard@...aro.org>
To:     lee.jones@...aro.org, robh+dt@...nel.org, mark.rutland@....com,
        alexandre.torgue@...com, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, thierry.reding@...il.com,
        linux-pwm@...r.kernel.org, jic23@...nel.org, knaack.h@....de,
        lars@...afoo.de, pmeerw@...erw.net, linux-iio@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Cc:     fabrice.gasnier@...com, gerald.baeza@...com,
        arnaud.pouliquen@...com, linus.walleij@...aro.org,
        linaro-kernel@...ts.linaro.org,
        Benjamin Gaignard <benjamin.gaignard@...com>
Subject: [PATCH 3/7] add pwm-stm32 DT bindings

Define binding for pwm-stm32

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...com>
---
 .../devicetree/bindings/pwm/pwm-stm32.txt          | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pwm/pwm-stm32.txt

diff --git a/Documentation/devicetree/bindings/pwm/pwm-stm32.txt b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt
new file mode 100644
index 0000000..819e024
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt
@@ -0,0 +1,43 @@
+STMicroelectronics PWM driver bindings for STM32
+--------------------------------------
+
+Must be a child of STM32 multifunctions timer driver
+
+Required parameters:
+- compatible :		"st,stm32-pwm1"
+			"st,stm32-pwm2"
+			"st,stm32-pwm3"
+			"st,stm32-pwm4"
+			"st,stm32-pwm5"
+			"st,stm32-pwm8"
+			"st,stm32-pwm9"
+			"st,stm32-pwm10"
+			"st,stm32-pwm11"
+			"st,stm32-pwm12"
+			"st,stm32-pwm13"
+			"st,stm32-pwm14"
+- pinctrl-names: 	Set to "default".
+- pinctrl-0: 		List of phandles pointing to pin configuration nodes
+			for PWM module.
+			For Pinctrl properties, please refer to [1].
+
+Optional parameters:
+- st,breakinput-polarity if set enable break input feature.
+			 The value define the active polarity:
+			  - 0 (active LOW)
+			  - 1 (active HIGH)
+
+[1] Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+
+Example:
+	mfd_timer1: mfdtimer1@...10000 {
+		compatible = "st,stm32-mfd-timer1";
+		reg = <0x40010000 0x400>;
+		clocks = <&rcc 0 160>;
+		clock-names = "mfd_timer_clk";
+		interrupts = <27>;
+
+		pwm1: pwm1@...10000 {
+			compatible = "st,stm32-pwm1";
+		};
+	};
-- 
1.9.1