linux-kernel - [PATCH v2 1/3] dt-bindings: pwm-stm32: document pinctrl sleep state

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Message-ID: <1570193633-6600-2-git-send-email-fabrice.gasnier@st.com>
Date:   Fri, 4 Oct 2019 14:53:51 +0200
From:   Fabrice Gasnier <fabrice.gasnier@...com>
To:     <thierry.reding@...il.com>, <robh+dt@...nel.org>,
        <u.kleine-koenig@...gutronix.de>
CC:     <alexandre.torgue@...com>, <mark.rutland@....com>,
        <mcoquelin.stm32@...il.com>, <fabrice.gasnier@...com>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-pwm@...r.kernel.org>,
        <benjamin.gaignard@...com>,
        <linux-stm32@...md-mailman.stormreply.com>
Subject: [PATCH v2 1/3] dt-bindings: pwm-stm32: document pinctrl sleep state

Add documentation for pinctrl sleep state that can be used by
STM32 timers PWM.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...com>
---
 Documentation/devicetree/bindings/pwm/pwm-stm32.txt | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/pwm/pwm-stm32.txt b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt
index a8690bf..f1620c1 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-stm32.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt
@@ -5,8 +5,9 @@ See ../mfd/stm32-timers.txt for details about the parent node.
 
 Required parameters:
 - compatible:		Must be "st,stm32-pwm".
-- pinctrl-names: 	Set to "default".
-- pinctrl-0: 		List of phandles pointing to pin configuration nodes for PWM module.
+- pinctrl-names: 	Set to "default". An additional "sleep" state can be
+			defined to set pins in sleep state when in low power.
+- pinctrl-n: 		List of phandles pointing to pin configuration nodes for PWM module.
 			For Pinctrl properties see ../pinctrl/pinctrl-bindings.txt
 - #pwm-cells:		Should be set to 3. This PWM chip uses the default 3 cells
 			bindings defined in pwm.txt.
@@ -32,7 +33,8 @@ Example:
 			compatible = "st,stm32-pwm";
 			#pwm-cells = <3>;
 			pinctrl-0	= <&pwm1_pins>;
-			pinctrl-names	= "default";
+			pinctrl-1	= <&pwm1_sleep_pins>;
+			pinctrl-names	= "default", "sleep";
 			st,breakinput = <0 1 5>;
 		};
 	};
-- 
2.7.4