linux-kernel - [PATCH 1/4] dt-bindings: pwm-stm32-lp: document pinctrl sleep state

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Message-ID: <1549370429-19116-2-git-send-email-fabrice.gasnier@st.com>
Date:   Tue, 5 Feb 2019 13:40:26 +0100
From:   Fabrice Gasnier <fabrice.gasnier@...com>
To:     <jic23@...nel.org>, <thierry.reding@...il.com>,
        <robh+dt@...nel.org>
CC:     <mark.rutland@....com>, <alexandre.torgue@...com>,
        <mcoquelin.stm32@...il.com>, <fabrice.gasnier@...com>,
        <linux-iio@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-pwm@...r.kernel.org>,
        <vilhelm.gray@...il.com>,
        <linux-stm32@...md-mailman.stormreply.com>
Subject: [PATCH 1/4] dt-bindings: pwm-stm32-lp: document pinctrl sleep state

Add documentation for pinctrl sleep state on STM32 LPTimer PWM.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...com>
---
 Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt b/Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt
index bd23302..6521bc4 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt
@@ -11,8 +11,10 @@ Required parameters:
 			bindings defined in pwm.txt.
 
 Optional properties:
-- pinctrl-names: 	Set to "default".
-- pinctrl-0: 		Phandle pointing to pin configuration node for PWM.
+- pinctrl-names: 	Set to "default". An additional "sleep" state can be
+			defined to set pins in sleep state when in low power.
+- pinctrl-n: 		Phandle(s) pointing to pin configuration node for PWM,
+			respectively for "default" and "sleep" states.
 
 Example:
 	timer@...02400 {
@@ -21,7 +23,8 @@ Example:
 		pwm {
 			compatible = "st,stm32-pwm-lp";
 			#pwm-cells = <3>;
-			pinctrl-names = "default";
+			pinctrl-names = "default", "sleep";
 			pinctrl-0 = <&lppwm1_pins>;
+			pinctrl-1 = <&lppwm1_sleep_pins>;
 		};
 	};
-- 
1.9.1