From nobody Mon Dec 1 23:09:42 2025 Received: from smtpout-04.galae.net (smtpout-04.galae.net [185.171.202.116]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 897D030E85E for ; Wed, 26 Nov 2025 17:36:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.171.202.116 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764178614; cv=none; b=QTV12OwLUFwwJH713ccIqCNA+sTnNj+iDnQq8q8hwm/h8a1kfrGyvff/93X55owXHtRI2vPjtpxLWx2jPE/dktnoQ0HjLaoah4xyznh9BbiLrfX77eCtQjgl9yttpVd0nN+KqWAys5bF6NpeWJijndEBB3mMyQ4jUph+/7BaZvY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764178614; c=relaxed/simple; bh=NObLl9fDFrFZkTv9xsvJQK5vK4J1/jFJFVcI30Ygmfw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=euiFFG6gQbkTlJ5HR0xRICf3gx1ynE+aeX+AWISs7ZrIEnmO8BD0/HbS4B9EPSgkPPc201vvr0Zt1c08zQJtb/ll1Cx2FfOftbrT6H1/30xk6H3DLo2Exh0qAyh/+XIxqZac1bCfcO/ksiDzPcd3NLzZOftPQYxVtS/NcyOqeLs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=XdIHFCWM; arc=none smtp.client-ip=185.171.202.116 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="XdIHFCWM" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-04.galae.net (Postfix) with ESMTPS id EED5AC16A0C; Wed, 26 Nov 2025 17:36:26 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id B41D560721; Wed, 26 Nov 2025 17:36:49 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id C6A24102F221D; Wed, 26 Nov 2025 18:36:45 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1764178608; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=0CUr9ddV3oZ41q3/D/0z/oo3oYkxXbRVdv8SyL1wMI0=; b=XdIHFCWMG+5JwqdNGZHvzcPTLjOUAqtIc13sFCqdx8WbFpzLBq7SdG5+3ABrAJ8zaffh5F tkcakLaIexbu6VluNW93m3bfPyk0TfF53m9C03x3trO4Uacq1qfZzewsxrv5K+BrLiC+WZ VDS74JMKtjMMvi+/Dkcfzet1BBW4jP23Z9t4SWYxNpEcFDv23hnIL5Jug3P9Sv3GD5AYYM vR4A3S477UtgpN6NysxxlAHkihiyW4fRxuk0fH7h9iFbQ5+O6OTy7ZIa5gwhz7zI391bbq I1AuNnFoS50wmEKc3LcPCiOu2zUlf+h+p4i1Oz0kvLA/x2t3qH4+tAhyhDC0PQ== From: "Kory Maincent (TI.com)" Date: Wed, 26 Nov 2025 18:35:43 +0100 Subject: [PATCH 01/21] dt-bindings: display: tilcdc: Convert to DT schema Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251126-feature_tilcdc-v1-1-49b9ef2e3aa0@bootlin.com> References: <20251126-feature_tilcdc-v1-0-49b9ef2e3aa0@bootlin.com> In-Reply-To: <20251126-feature_tilcdc-v1-0-49b9ef2e3aa0@bootlin.com> To: Jyri Sarha , Tomi Valkeinen , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Russell King , Bartosz Golaszewski , Tony Lindgren , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec Cc: Markus Schneider-Pargmann , Luca Ceresoli , Louis Chauvet , Thomas Petazzoni , Miguel Gazquez , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, "Kory Maincent (TI.com)" X-Mailer: b4 0.14.3 X-Last-TLS-Session-Version: TLSv1.3 Convert the device tree binding documentation for tilcdc from plain text to DT binding schema. Signed-off-by: Kory Maincent (TI.com) --- .../devicetree/bindings/display/tilcdc/tilcdc.txt | 82 ------------------ .../devicetree/bindings/display/tilcdc/tilcdc.yaml | 96 ++++++++++++++++++= ++++ 2 files changed, 96 insertions(+), 82 deletions(-) diff --git a/Documentation/devicetree/bindings/display/tilcdc/tilcdc.txt b/= Documentation/devicetree/bindings/display/tilcdc/tilcdc.txt deleted file mode 100644 index 3b3d0bbfcfff4..0000000000000 --- a/Documentation/devicetree/bindings/display/tilcdc/tilcdc.txt +++ /dev/null @@ -1,82 +0,0 @@ -Device-Tree bindings for tilcdc DRM driver - -Required properties: - - compatible: value should be one of the following: - - "ti,am33xx-tilcdc" for AM335x based boards - - "ti,da850-tilcdc" for DA850/AM18x/OMAP-L138 based boards - - interrupts: the interrupt number - - reg: base address and size of the LCDC device - -Recommended properties: - - ti,hwmods: Name of the hwmod associated to the LCDC - -Optional properties: - - max-bandwidth: The maximum pixels per second that the memory - interface / lcd controller combination can sustain - - max-width: The maximum horizontal pixel width supported by - the lcd controller. - - max-pixelclock: The maximum pixel clock that can be supported - by the lcd controller in KHz. - - blue-and-red-wiring: Recognized values "straight" or "crossed". - This property deals with the LCDC revision 2 (found on AM335x) - color errata [1]. - - "straight" indicates normal wiring that supports RGB565, - BGR888, and XBGR8888 color formats. - - "crossed" indicates wiring that has blue and red wires - crossed. This setup supports BGR565, RGB888 and XRGB8888 - formats. - - If the property is not present or its value is not recognized - the legacy mode is assumed. This configuration supports RGB565, - RGB888 and XRGB8888 formats. However, depending on wiring, the red - and blue colors are swapped in either 16 or 24-bit color modes. - -Optional nodes: - - - port/ports: to describe a connection to an external encoder. The - binding follows Documentation/devicetree/bindings/graph.txt and - supports a single port with a single endpoint. - - - See also Documentation/devicetree/bindings/display/tilcdc/panel.txt and - Documentation/devicetree/bindings/display/bridge/ti,tfp410.yaml for con= necting - tfp410 DVI encoder or lcd panel to lcdc - -[1] There is an errata about AM335x color wiring. For 16-bit color mode - the wires work as they should (LCD_DATA[0:4] is for Blue[3:7]), - but for 24 bit color modes the wiring of blue and red components is - crossed and LCD_DATA[0:4] is for Red[3:7] and LCD_DATA[11:15] is - for Blue[3-7]. For more details see section 3.1.1 in AM335x - Silicon Errata: - https://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNu= mber=3Dsprz360 - -Example: - - fb: fb@4830e000 { - compatible =3D "ti,am33xx-tilcdc", "ti,da850-tilcdc"; - reg =3D <0x4830e000 0x1000>; - interrupt-parent =3D <&intc>; - interrupts =3D <36>; - ti,hwmods =3D "lcdc"; - - blue-and-red-wiring =3D "crossed"; - - port { - lcdc_0: endpoint { - remote-endpoint =3D <&hdmi_0>; - }; - }; - }; - - tda19988: tda19988 { - compatible =3D "nxp,tda998x"; - reg =3D <0x70>; - - pinctrl-names =3D "default", "off"; - pinctrl-0 =3D <&nxp_hdmi_bonelt_pins>; - pinctrl-1 =3D <&nxp_hdmi_bonelt_off_pins>; - - port { - hdmi_0: endpoint { - remote-endpoint =3D <&lcdc_0>; - }; - }; - }; diff --git a/Documentation/devicetree/bindings/display/tilcdc/tilcdc.yaml b= /Documentation/devicetree/bindings/display/tilcdc/tilcdc.yaml new file mode 100644 index 0000000000000..34ac1fd04d5c6 --- /dev/null +++ b/Documentation/devicetree/bindings/display/tilcdc/tilcdc.yaml @@ -0,0 +1,96 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/tilcdc/tilcdc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI LCD Controller, found on AM335x, DA850, AM18x and OMAP-L138 + +maintainers: + - Kory Maincent + +properties: + compatible: + enum: + - ti,am33xx-tilcdc + - ti,da850-tilcdc + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + port: + $ref: /schemas/graph.yaml#/properties/port + + ti,hwmods: + $ref: /schemas/types.yaml#/definitions/string + description: + Name of the hwmod associated to the LCDC + + max-bandwidth: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + The maximum pixels per second that the memory interface / lcd + controller combination can sustain + + max-width: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + The maximum horizontal pixel width supported by the lcd controller. + + max-pixelclock: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + The maximum pixel clock that can be supported by the lcd controller + in KHz. + + blue-and-red-wiring: + enum: [straight, crossed] + description: + This property deals with the LCDC revision 2 (found on AM335x) + color errata [1]. + - "straight" indicates normal wiring that supports RGB565, + BGR888, and XBGR8888 color formats. + - "crossed" indicates wiring that has blue and red wires + crossed. This setup supports BGR565, RGB888 and XRGB8888 + formats. + - If the property is not present or its value is not recognized + the legacy mode is assumed. This configuration supports RGB565, + RGB888 and XRGB8888 formats. However, depending on wiring, the red + and blue colors are swapped in either 16 or 24-bit color modes. + + [1] There is an errata about AM335x color wiring. For 16-bit color + mode the wires work as they should (LCD_DATA[0:4] is for Blue[3:7]), + but for 24 bit color modes the wiring of blue and red components is + crossed and LCD_DATA[0:4] is for Red[3:7] and LCD_DATA[11:15] is + for Blue[3-7]. For more details see section 3.1.1 in AM335x + Silicon Errata + https://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratur= eNumber=3Dsprz360 + +required: + - compatible + - interrupts + - reg + - port + +additionalProperties: false + +examples: + - | + tilcdc: tilcdc@4830e000 { + compatible =3D "ti,am33xx-tilcdc"; + reg =3D <0x4830e000 0x1000>; + interrupt-parent =3D <&intc>; + interrupts =3D <36>; + ti,hwmods =3D "lcdc"; + + blue-and-red-wiring =3D "crossed"; + + port { + lcdc_0: endpoint { + remote-endpoint =3D <&hdmi_0>; + }; + }; + }; --=20 2.43.0