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Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rPnn7-00CtRC-1m; Tue, 16 Jan 2024 18:04:01 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rPnn3-00CtQl-1k for linux-arm-kernel@lists.infradead.org; Tue, 16 Jan 2024 18:03:59 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 86FF06130E; Tue, 16 Jan 2024 18:03:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A272AC433C7; Tue, 16 Jan 2024 18:03:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1705428206; bh=CRg9h5ljaE20inyWideyi9skHzli+4ErlCRBYmz6veQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=BaRaCezCYCB/6jAYn1+DDxNo1cVtLacjtp3GBM1osdwaHvaQqurkeAir7UuN1lg5H POv7TK/LsOheAe83JFTPv7pgHLFD+l3db41OLAbWZiB0kIhhiXGrmYNuNUJNJx+sQ5 FQ7sTPqXd7SxpAyKnlnF06gZ5WzQWSW8iC8eWFZ3xf3NlrmCGwAQB3NRwEC5xQa3DA oxOtY2l+mpHKIQa6k8u2vR7GVUbDAHPS5SNxjYsZRhFybzC5ezJdtpNU11Gi8ajmXP t3+iZx9WdanZUXM+zO9KFvdykp71rC7RVjTYoipDj+ldnotA96ScnFBVTxRDtnlsAr bqEEvihRx7HUQ== Date: Tue, 16 Jan 2024 18:03:19 +0000 From: Conor Dooley To: Dharma Balasubiramani Subject: Re: [PATCH v2 2/3] dt-bindings: atmel,hlcdc: convert pwm bindings to json-schema Message-ID: <20240116-rising-gap-df4124f191a0@spud> References: <20240116113800.82529-1-dharma.b@microchip.com> <20240116113800.82529-3-dharma.b@microchip.com> MIME-Version: 1.0 In-Reply-To: <20240116113800.82529-3-dharma.b@microchip.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240116_100357_666448_383E9596 X-CRM114-Status: GOOD ( 25.30 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alexandre.belloni@bootlin.com, linux-pwm@vger.kernel.org, linux4microchip@microchip.com, dri-devel@lists.freedesktop.org, conor.dooley@microchip.com, thierry.reding@gmail.com, krzysztof.kozlowski+dt@linaro.org, claudiu.beznea@tuxon.dev, airlied@gmail.com, sam@ravnborg.org, lee@kernel.org, u.kleine-koenig@pengutronix.de, devicetree@vger.kernel.org, conor+dt@kernel.org, tzimmermann@suse.de, maarten.lankhorst@linux.intel.com, mripard@kernel.org, robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org, bbrezillon@kernel.org, linux-kernel@vger.kernel.org, daniel@ffwll.ch Content-Type: multipart/mixed; boundary="===============6035724874056019145==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============6035724874056019145== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="QLbmZbOLjpJ/vPR8" Content-Disposition: inline --QLbmZbOLjpJ/vPR8 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jan 16, 2024 at 05:07:59PM +0530, Dharma Balasubiramani wrote: > Convert device tree bindings for Atmel's HLCDC PWM controller to YAML > format. >=20 > Signed-off-by: Dharma Balasubiramani > --- > changelog > v1 -> v2 > - Remove the explicit copyrights. > - Modify title (not include words like binding/driver). > - Modify description actually describing the hardware and not the driver. > - Remove pinctrl properties which aren't required. > - Drop parent node and it's other sub-device node which are not related h= ere. > --- > .../bindings/pwm/atmel,hlcdc-pwm.yaml | 47 +++++++++++++++++++ > .../bindings/pwm/atmel-hlcdc-pwm.txt | 29 ------------ > 2 files changed, 47 insertions(+), 29 deletions(-) > create mode 100644 Documentation/devicetree/bindings/pwm/atmel,hlcdc-pwm= =2Eyaml > delete mode 100644 Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm= =2Etxt >=20 > diff --git a/Documentation/devicetree/bindings/pwm/atmel,hlcdc-pwm.yaml b= /Documentation/devicetree/bindings/pwm/atmel,hlcdc-pwm.yaml > new file mode 100644 > index 000000000000..751122309fa9 > --- /dev/null > +++ b/Documentation/devicetree/bindings/pwm/atmel,hlcdc-pwm.yaml > @@ -0,0 +1,47 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) The original file has no license, but was originally written by a free-electrons employee, so the relicensing here is fine. > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/pwm/atmel,hlcdc-pwm.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Atmel's HLCDC's PWM controller > + > +maintainers: > + - Nicolas Ferre > + - Alexandre Belloni > + - Claudiu Beznea > + > +description: | Again, the | is not needed here. > + The LCDC integrates a Pulse Width Modulation (PWM) Controller. This bl= ock > + generates the LCD contrast control signal (LCD_PWM) that controls the > + display's contrast by software. LCDC_PWM is an 8-bit PWM signal that c= an be > + converted to an analog voltage with a simple passive filter. LCD displ= ay > + panels have different backlight specifications in terms of minimum/max= imum > + values for PWM frequency. If the LCDC PWM frequency range does not mat= ch the > + LCD display panel, it is possible to use the standalone PWM Controller= to > + drive the backlight. > + > +properties: > + compatible: > + const: atmel,hlcdc-pwm > + > + "#pwm-cells": > + const: 3 > + description: | > + This PWM chip uses the default 3 cells bindings defined in pwm.yam= l in > + this directory. I would delete this description tbh. > + > +required: > + - compatible > + - "#pwm-cells" > + > +additionalProperties: false > + > +examples: > + - | > + pwm: pwm { > + compatible =3D "atmel,hlcdc-pwm"; > + pinctrl-names =3D "default"; > + pinctrl-0 =3D <&pinctrl_lcd_pwm>; > + #pwm-cells =3D <3>; > + }; The label here is not used and can be dropped. Otherwise, Reviewed-by: Conor Dooley Cheers, Conor. > diff --git a/Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt b/= Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt > deleted file mode 100644 > index afa501bf7f94..000000000000 > --- a/Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt > +++ /dev/null > @@ -1,29 +0,0 @@ > -Device-Tree bindings for Atmel's HLCDC (High-end LCD Controller) PWM dri= ver > - > -The Atmel HLCDC PWM is subdevice of the HLCDC MFD device. > -See ../mfd/atmel-hlcdc.txt for more details. > - > -Required properties: > - - compatible: value should be one of the following: > - "atmel,hlcdc-pwm" > - - pinctr-names: the pin control state names. Should contain "default". > - - pinctrl-0: should contain the pinctrl states described by pinctrl > - default. > - - #pwm-cells: should be set to 3. This PWM chip use the default 3 cells > - bindings defined in pwm.yaml in this directory. > - > -Example: > - > - hlcdc: hlcdc@f0030000 { > - compatible =3D "atmel,sama5d3-hlcdc"; > - reg =3D <0xf0030000 0x2000>; > - clocks =3D <&lcdc_clk>, <&lcdck>, <&clk32k>; > - clock-names =3D "periph_clk","sys_clk", "slow_clk"; > - > - hlcdc_pwm: hlcdc-pwm { > - compatible =3D "atmel,hlcdc-pwm"; > - pinctrl-names =3D "default"; > - pinctrl-0 =3D <&pinctrl_lcd_pwm>; > - #pwm-cells =3D <3>; > - }; > - }; > --=20 > 2.25.1 >=20 --QLbmZbOLjpJ/vPR8 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRh246EGq/8RLhDjO14tDGHoIJi0gUCZabE5wAKCRB4tDGHoIJi 0hwFAP9jhcXP9wzaYy0Zz+9WvhngHO1gBGv8fpvpusu/vOgDugEA9tZzT38ZV7GR lEyPDaLupBQig1Y0zS0MvcAUj/eMsQQ= =LcB+ -----END PGP SIGNATURE----- --QLbmZbOLjpJ/vPR8-- --===============6035724874056019145== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============6035724874056019145==--