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From: Thierry Reding <thierry.reding@gmail.com>
To: YH Huang <yh.huang@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
	linux-pwm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	srv_heupstream@mediatek.com, linux-mediatek@lists.infradead.org,
	Sascha Hauer <kernel@pengutronix.de>
Subject: Re: [PATCH v2 1/2] dt-bindings: pwm: add MediaTek display PWM bindings
Date: Fri, 12 Jun 2015 12:23:45 +0200	[thread overview]
Message-ID: <20150612102344.GG19400@ulmo.nvidia.com> (raw)
In-Reply-To: <1432214964-40644-2-git-send-email-yh.huang@mediatek.com>

[-- Attachment #1: Type: text/plain, Size: 2026 bytes --]

On Thu, May 21, 2015 at 09:29:23PM +0800, YH Huang wrote:
> Document the device-tree binding of MediatTek display PWM.

s/MediatTek/MediaTek/

> 
> Signed-off-by: YH Huang <yh.huang@mediatek.com>

This could use a more verbose commit message. You could mention what the
PWM is typically used for (display I presume). Perhaps mention how many
channels it exposes and so on.

> ---
>  .../devicetree/bindings/pwm/pwm-mtk-disp.txt       | 25 ++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
> 
> diff --git a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
> new file mode 100644
> index 0000000..f55bf92
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
> @@ -0,0 +1,25 @@
> +MediaTek display PWM controller
> +
> +Required properties:
> + - compatible: should be "mediatek,<name>-disp-pwm"
> +   - "mediatek,mt8173-disp-pwm": found on mt8173 SoC
> +   - "mediatek,mt6595-disp-pwm": found on mt6595 SoC
> + - reg: physical base address and length of the controller's registers
> + - #pwm-cells: must be 2. See pwm.txt in this directory
> +   for a description of the cell format

You can use the full line width of 78/80 characters, no need to wrap
this prematurely.

> + - clocks: phandle and clock specifier of the PWM reference clock
> + - clock-names: must contain the following
> +   - "main": clock used to generate PWM signals
> +   - "mm": sync signals from the modules of mmsys
> +
> +Example:
> +	pwm0: pwm@1401e000 {
> +		compatible = "mediatek,mt8173-disp-pwm",
> +			     "mediatek,mt6595-disp-pwm";
> +		reg = <0 0x1401e000 0 0x1000>;
> +		#pwm-cells = <2>;
> +		clocks = <&mmsys MM_DISP_PWM026M>,
> +			 <&mmsys MM_DISP_PWM0MM>;
> +		clock-names = "main",
> +			      "mm";

No need to waste a line,

		clock-names = "main", "mm";

fits on a single line just fine.

Thierry

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WARNING: multiple messages have this Message-ID (diff)
From: thierry.reding@gmail.com (Thierry Reding)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/2] dt-bindings: pwm: add MediaTek display PWM bindings
Date: Fri, 12 Jun 2015 12:23:45 +0200	[thread overview]
Message-ID: <20150612102344.GG19400@ulmo.nvidia.com> (raw)
In-Reply-To: <1432214964-40644-2-git-send-email-yh.huang@mediatek.com>

On Thu, May 21, 2015 at 09:29:23PM +0800, YH Huang wrote:
> Document the device-tree binding of MediatTek display PWM.

s/MediatTek/MediaTek/

> 
> Signed-off-by: YH Huang <yh.huang@mediatek.com>

This could use a more verbose commit message. You could mention what the
PWM is typically used for (display I presume). Perhaps mention how many
channels it exposes and so on.

> ---
>  .../devicetree/bindings/pwm/pwm-mtk-disp.txt       | 25 ++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
> 
> diff --git a/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
> new file mode 100644
> index 0000000..f55bf92
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pwm/pwm-mtk-disp.txt
> @@ -0,0 +1,25 @@
> +MediaTek display PWM controller
> +
> +Required properties:
> + - compatible: should be "mediatek,<name>-disp-pwm"
> +   - "mediatek,mt8173-disp-pwm": found on mt8173 SoC
> +   - "mediatek,mt6595-disp-pwm": found on mt6595 SoC
> + - reg: physical base address and length of the controller's registers
> + - #pwm-cells: must be 2. See pwm.txt in this directory
> +   for a description of the cell format

You can use the full line width of 78/80 characters, no need to wrap
this prematurely.

> + - clocks: phandle and clock specifier of the PWM reference clock
> + - clock-names: must contain the following
> +   - "main": clock used to generate PWM signals
> +   - "mm": sync signals from the modules of mmsys
> +
> +Example:
> +	pwm0: pwm at 1401e000 {
> +		compatible = "mediatek,mt8173-disp-pwm",
> +			     "mediatek,mt6595-disp-pwm";
> +		reg = <0 0x1401e000 0 0x1000>;
> +		#pwm-cells = <2>;
> +		clocks = <&mmsys MM_DISP_PWM026M>,
> +			 <&mmsys MM_DISP_PWM0MM>;
> +		clock-names = "main",
> +			      "mm";

No need to waste a line,

		clock-names = "main", "mm";

fits on a single line just fine.

Thierry
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  reply	other threads:[~2015-06-12 10:24 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-21 13:29 [PATCH v2 0/2] Add MediaTek display PWM driver YH Huang
2015-05-21 13:29 ` YH Huang
2015-05-21 13:29 ` YH Huang
2015-05-21 13:29 ` [PATCH v2 1/2] dt-bindings: pwm: add MediaTek display PWM bindings YH Huang
2015-05-21 13:29   ` YH Huang
2015-05-21 13:29   ` YH Huang
2015-06-12 10:23   ` Thierry Reding [this message]
2015-06-12 10:23     ` Thierry Reding
2015-06-18  9:00     ` YH Huang
2015-06-18  9:00       ` YH Huang
2015-06-18  9:00       ` YH Huang
2015-05-21 13:29 ` [PATCH v2 2/2] pwm: add MediaTek display PWM driver support YH Huang
2015-05-21 13:29   ` YH Huang
2015-05-21 13:29   ` YH Huang
2015-06-12 10:20   ` Thierry Reding
2015-06-12 10:20     ` Thierry Reding
2015-06-18 10:19     ` YH Huang
2015-06-18 10:19       ` YH Huang
2015-06-18 10:19       ` YH Huang
2015-06-18 13:58       ` Yingjoe Chen
2015-06-18 13:58         ` Yingjoe Chen
2015-06-18 13:58         ` Yingjoe Chen
2015-06-29  9:27         ` Thierry Reding
2015-06-29  9:27           ` Thierry Reding
2015-06-29  9:21       ` Thierry Reding
2015-06-29  9:21         ` Thierry Reding
2015-06-12 10:25   ` Thierry Reding
2015-06-12 10:25     ` Thierry Reding
2015-06-18  9:02     ` YH Huang
2015-06-18  9:02       ` YH Huang
2015-06-18  9:02       ` YH Huang
2015-05-25  2:14 ` [PATCH v2 0/2] Add MediaTek display PWM driver Yingjoe Chen
2015-05-25  2:14   ` Yingjoe Chen
2015-05-25  2:14   ` Yingjoe Chen
2015-06-05  6:15   ` YH Huang
2015-06-05  6:15     ` YH Huang
2015-06-05  8:39     ` Matthias Brugger
2015-06-05  8:39       ` Matthias Brugger
2015-06-05 10:45       ` YH Huang
2015-06-05 10:45         ` YH Huang

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