From patchwork Thu Jan 28 16:52:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lubomir Rintel X-Patchwork-Id: 372752 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E169DC433E6 for ; Thu, 28 Jan 2021 16:53:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9443564DEE for ; Thu, 28 Jan 2021 16:53:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232624AbhA1Qw7 (ORCPT ); Thu, 28 Jan 2021 11:52:59 -0500 Received: from mail.v3.sk ([167.172.186.51]:37202 "EHLO shell.v3.sk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S231634AbhA1Qw6 (ORCPT ); Thu, 28 Jan 2021 11:52:58 -0500 Received: from localhost (localhost.localdomain [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id 0BA8DE0B2E; Thu, 28 Jan 2021 16:48:10 +0000 (UTC) Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id upg9um6BP9nN; Thu, 28 Jan 2021 16:48:07 +0000 (UTC) Received: from localhost (localhost.localdomain [127.0.0.1]) by zimbra.v3.sk (Postfix) with ESMTP id D2DD6E0B2B; Thu, 28 Jan 2021 16:48:07 +0000 (UTC) X-Virus-Scanned: amavisd-new at zimbra.v3.sk Received: from shell.v3.sk ([127.0.0.1]) by localhost (zimbra.v3.sk [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id PQ1EsHMStgVC; Thu, 28 Jan 2021 16:48:07 +0000 (UTC) Received: from localhost (unknown [109.183.109.54]) by zimbra.v3.sk (Postfix) with ESMTPSA id 3F529E0B28; Thu, 28 Jan 2021 16:48:07 +0000 (UTC) From: Lubomir Rintel To: Andrzej Hajda Cc: Neil Armstrong , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , David Airlie , Daniel Vetter , Rob Herring , Sam Ravnborg , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Lubomir Rintel , Rob Herring Subject: [PATCH v7 1/2] dt-bindings: display: himax, hx8837: Add Himax HX8837 bindings Date: Thu, 28 Jan 2021 17:52:08 +0100 Message-Id: <20210128165209.59903-2-lkundrak@v3.sk> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210128165209.59903-1-lkundrak@v3.sk> References: <20210128165209.59903-1-lkundrak@v3.sk> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Himax HX8837 is a secondary display controller used to drive the panel on OLPC platforms. Signed-off-by: Lubomir Rintel Reviewed-by: Rob Herring --- Changes since v6: (All based on feedback from Laurent Pinchart) - Add power supplies - Make load/stat-gpios optional - Fix whitespace errors - Use decimal constants instead of hex in example where appropriate - Terminate the bindings with "..." end-of-document marker Changes since v4: - Rob's Reviewed-by Changes since v3: - Moved to bindings/display/ - Added the ports - Converted to YAML - Removed Pavel's Ack, because the changes are substantial Changes since v2: - s/betweend/between/ Changes since v1: - s/load-gpio/load-gpios/ - Use interrupt bindings instead of gpio for the IRQ .../bindings/display/bridge/himax,hx8837.yaml | 108 ++++++++++++++++++ 1 file changed, 108 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/himax,hx8837.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/himax,hx8837.yaml b/Documentation/devicetree/bindings/display/bridge/himax,hx8837.yaml new file mode 100644 index 0000000000000..e9e21a3447088 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/himax,hx8837.yaml @@ -0,0 +1,108 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2018,2019,2020,2021 Lubomir Rintel +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/himax,hx8837.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: HX8837 Display Controller Device Tree Bindings + +maintainers: + - Lubomir Rintel + +properties: + compatible: + const: himax,hx8837 + + reg: + const: 0xd + + load-gpios: + maxItems: 1 + description: GPIO specifier of DCON_LOAD pin (active high) + + stat-gpios: + minItems: 2 + description: GPIO specifier of DCON_STAT0 and DCON_STAT1 pins (active high) + + interrupts: + maxItems: 1 + description: Interrupt specifier of DCON_IRQ pin (edge falling) + + vddp18-supply: + description: Regulator for 1.8V display interface I/O power. + + vddm25-supply: + description: Regulator for 2.5V SDRAM I/O power. + + vdd33-supply: + description: Regulator for 3.3V digital I/O power. + + vddk18-supply: + description: Regulator for 1.8V internal core power. + + ports: + type: object + + properties: + port@0: + type: object + description: | + Video port for RGB input. + + port@1: + type: object + description: | + Video port connected to the panel. + + required: + - port@0 + - port@1 + +required: + - compatible + - reg + - interrupts + - ports + +additionalProperties: false + +examples: + - | + #include + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + lcd-controller@d { + compatible = "himax,hx8837"; + reg = <0x0d>; + stat-gpios = <&gpio 100 GPIO_ACTIVE_HIGH>, + <&gpio 101 GPIO_ACTIVE_HIGH>; + load-gpios = <&gpio 142 GPIO_ACTIVE_HIGH>; + interrupts = <&gpio 124 IRQ_TYPE_EDGE_FALLING>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + dcon_rgb_in: endpoint { + remote-endpoint = <&lcd0_rgb_out>; + }; + }; + + port@1 { + reg = <1>; + dcon_gettl_out: endpoint { + remote-endpoint = <&panel_dettl_in>; + }; + }; + }; + }; + }; + +...