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Message-ID: <4107497fa8564032cac49e70680a9aa7bbb312eb.1548313019.git.ryder.lee@mediatek.com>
Date: Wed, 14 Aug 2019 18:43:34 +0800
From: Sam Shih <sam.shih@...iatek.com>
To: Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Matthias Brugger <matthias.bgg@...il.com>,
Thierry Reding <thierry.reding@...il.com>
CC: Ryder Lee <ryder.lee@...iatek.com>,
John Crispin <john@...ozen.org>, <linux-pwm@...r.kernel.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-mediatek@...ts.infradead.org>,
Sam Shih <sam.shih@...iatek.com>
Subject: [PATCH v2 4/10] dt-bindings: pwm: add a property "num-pwms"
From: Ryder Lee <ryder.lee@...iatek.com>
This adds a property "num-pwms" in example so that we could
specify the number of PWM channels via device tree.
Signed-off-by: Ryder Lee <ryder.lee@...iatek.com>
Signed-off-by: Sam Shih <sam.shih@...iatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@...il.com>
---
Changes since v2:
- use num-pwms instead of mediatek,num-pwms.
- modify the description of clocks to make it simple.
Changes since v1:
- add a Reviewed-by tag.
---
Documentation/devicetree/bindings/pwm/pwm-mediatek.txt | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt b/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt
index 991728c..ea95b49 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt
@@ -14,12 +14,12 @@ Required properties:
has no clocks
- "top": the top clock generator
- "main": clock used by the PWM core
- - "pwm1-8": the eight per PWM clocks for mt2712
- - "pwm1-6": the six per PWM clocks for mt7622
- - "pwm1-5": the five per PWM clocks for mt7623
+ - "pwm1-N": the PWM clocks for each channel
+ where N starting from 1 to the maximum number of PWM channels
- pinctrl-names: Must contain a "default" entry.
- pinctrl-0: One property must exist for each entry in pinctrl-names.
See pinctrl/pinctrl-bindings.txt for details of the property values.
+ - num-pwms: the number of PWM channels.
Example:
pwm0: pwm@...06000 {
@@ -37,4 +37,5 @@ Example:
"pwm3", "pwm4", "pwm5";
pinctrl-names = "default";
pinctrl-0 = <&pwm0_pins>;
+ num-pwms = <5>;
};
--
1.9.1
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