[v3,1/9] dt-bindings: mfd: Add STM32 LPTimer binding

Submitted by Fabrice GASNIER on July 7, 2017, 4:31 p.m.

Details

Message ID 1499445068-7037-2-git-send-email-fabrice.gasnier@st.com
State New
Headers show

Commit Message

Fabrice GASNIER July 7, 2017, 4:31 p.m.
Add documentation for STMicroelectronics STM32 Low-Power Timer binding.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
---
Changes in v3:
- Rob's comment on node name: timer@...

Changes in v2:
- Lee's comments: s/Low Power/Low-Power/, remove 0x in example, improve
  properties descriptions
---
 .../devicetree/bindings/mfd/stm32-lptimer.txt      | 48 ++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/stm32-lptimer.txt

Comments

Rob Herring July 10, 2017, 3:26 p.m.
On Fri, Jul 07, 2017 at 06:31:00PM +0200, Fabrice Gasnier wrote:
> Add documentation for STMicroelectronics STM32 Low-Power Timer binding.
> 
> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
> Acked-by: Jonathan Cameron <jic23@kernel.org>
> ---
> Changes in v3:
> - Rob's comment on node name: timer@...
> 
> Changes in v2:
> - Lee's comments: s/Low Power/Low-Power/, remove 0x in example, improve
>   properties descriptions
> ---
>  .../devicetree/bindings/mfd/stm32-lptimer.txt      | 48 ++++++++++++++++++++++
>  1 file changed, 48 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/stm32-lptimer.txt

Acked-by: Rob Herring <robh@kernel.org>
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Lee Jones July 17, 2017, 6:34 p.m.
On Fri, 07 Jul 2017, Fabrice Gasnier wrote:

> Add documentation for STMicroelectronics STM32 Low-Power Timer binding.
> 
> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
> Acked-by: Jonathan Cameron <jic23@kernel.org>
> ---
> Changes in v3:
> - Rob's comment on node name: timer@...
> 
> Changes in v2:
> - Lee's comments: s/Low Power/Low-Power/, remove 0x in example, improve
>   properties descriptions
> ---
>  .../devicetree/bindings/mfd/stm32-lptimer.txt      | 48 ++++++++++++++++++++++
>  1 file changed, 48 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/stm32-lptimer.txt

For my own reference:
  Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>

Patch hide | download patch | download mbox

diff --git a/Documentation/devicetree/bindings/mfd/stm32-lptimer.txt b/Documentation/devicetree/bindings/mfd/stm32-lptimer.txt
new file mode 100644
index 0000000..2a9ff29
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/stm32-lptimer.txt
@@ -0,0 +1,48 @@ 
+STMicroelectronics STM32 Low-Power Timer
+
+The STM32 Low-Power Timer (LPTIM) is a 16-bit timer that provides several
+functions:
+- PWM output (with programmable prescaler, configurable polarity)
+- Quadrature encoder, counter
+- Trigger source for STM32 ADC/DAC (LPTIM_OUT)
+
+Required properties:
+- compatible:		Must be "st,stm32-lptimer".
+- reg:			Offset and length of the device's register set.
+- clocks:		Phandle to the clock used by the LP Timer module.
+- clock-names:		Must be "mux".
+- #address-cells:	Should be '<1>'.
+- #size-cells:		Should be '<0>'.
+
+Optional subnodes:
+- pwm:			See ../pwm/pwm-stm32-lp.txt
+- counter:		See ../iio/timer/stm32-lptimer-cnt.txt
+- trigger:		See ../iio/timer/stm32-lptimer-trigger.txt
+
+Example:
+
+	timer@40002400 {
+		compatible = "st,stm32-lptimer";
+		reg = <0x40002400 0x400>;
+		clocks = <&timer_clk>;
+		clock-names = "mux";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		pwm {
+			compatible = "st,stm32-pwm-lp";
+			pinctrl-names = "default";
+			pinctrl-0 = <&lppwm1_pins>;
+		};
+
+		trigger@0 {
+			compatible = "st,stm32-lptimer-trigger";
+			reg = <0>;
+		};
+
+		counter {
+			compatible = "st,stm32-lptimer-counter";
+			pinctrl-names = "default";
+			pinctrl-0 = <&lptim1_in_pins>;
+		};
+	};