From patchwork Thu Apr 30 19:46:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 1280881 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=chromium.org header.i=@chromium.org header.a=rsa-sha256 header.s=google header.b=Z+bKIp4V; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49Cm9h0V8Tz9sSX for ; Fri, 1 May 2020 05:47:04 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727812AbgD3TrC (ORCPT ); Thu, 30 Apr 2020 15:47:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54388 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726616AbgD3Tq3 (ORCPT ); Thu, 30 Apr 2020 15:46:29 -0400 Received: from mail-pl1-x644.google.com (mail-pl1-x644.google.com [IPv6:2607:f8b0:4864:20::644]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A3BD3C035495 for ; Thu, 30 Apr 2020 12:46:29 -0700 (PDT) Received: by mail-pl1-x644.google.com with SMTP id z6so2679869plk.10 for ; Thu, 30 Apr 2020 12:46:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=69Vg9U3gBVUlkizCg48EDMT0ufV71AxAgwY37Mxv9RI=; b=Z+bKIp4ValF2xpimna9+2Wvkg/u4DEsTSNrLlwT6aivVRbhKKdgzGabovsdyTlg/69 NmTZI1zkc/MfM85OdYnHp+oJxY9qD1946qXdgtwPHVuo9zs/v6RSG3B9Lux6QsKAsRh3 8nQIkhHi7qaoCP6AUaiPJNszq2B3CrY2EfYVs= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=69Vg9U3gBVUlkizCg48EDMT0ufV71AxAgwY37Mxv9RI=; b=F5TQmf9+6PzJ7O5MJm50b0UPVuzPvjICSUzR0lbWRJd1v/Kxz01E+AfS70w/Rgsts6 Jr1ylZh/hs74OrDrYn8dti2EAxDU41yzF+jaDWiNqXXCKbYGV9laopoNQ+nkSSxoR0T/ 6GiAo1gjG5XsvqQDbr/HOxawVOo7afQHRee5y2v5iGScHNvcSVK3f9jGP1dauazHQ9zo tktoOR5Gfkyjt4uYpiH+l1LQEhoP0mv6PmEOrBIOpD+/rlmPk5d4ghWhwHACrg1gCkbX hZiCCllfcOf2Ado3M2Wue8KC33YEHKN5QF0NADspV3OfH/ZZ8dUMBAy6Ir7IrQ0CF/1H YZYg== X-Gm-Message-State: AGi0PuYgdd3LVr6GLFGoKaZNaWnpEgZg8aqa82fNziXA0sRkzWF4blEP cQuH407mjU3ujTwlaLs5Xu4LfA== X-Google-Smtp-Source: APiQypLMm8BMm2i3v9zIi6LLFN1yz2hNg4Ay0PXQeF0bd8feavJN2Yy5iy7PQdAFV+JeZvO0jSoW7g== X-Received: by 2002:a17:90a:cb0b:: with SMTP id z11mr500642pjt.62.1588275989203; Thu, 30 Apr 2020 12:46:29 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:202:1:24fa:e766:52c9:e3b2]) by smtp.gmail.com with ESMTPSA id u3sm495993pfb.105.2020.04.30.12.46.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 Apr 2020 12:46:28 -0700 (PDT) From: Douglas Anderson To: linus.walleij@linaro.org, bgolaszewski@baylibre.com, airlied@linux.ie, daniel@ffwll.ch, robh+dt@kernel.org, narmstrong@baylibre.com, a.hajda@samsung.com, Laurent.pinchart@ideasonboard.com, spanda@codeaurora.org Cc: linux-gpio@vger.kernel.org, jonas@kwiboo.se, robdclark@chromium.org, bjorn.andersson@linaro.org, jeffrey.l.hugo@gmail.com, jernej.skrabec@siol.net, dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, swboyd@chromium.org, Douglas Anderson , Sam Ravnborg , Thierry Reding , linux-kernel@vger.kernel.org Subject: [PATCH v4 2/6] dt-bindings: display: Add hpd-gpios to panel-common bindings Date: Thu, 30 Apr 2020 12:46:13 -0700 Message-Id: <20200430124442.v4.2.I1976736b400a3b30e46efa47782248b86b3bc627@changeid> X-Mailer: git-send-email 2.26.2.526.g744177e7f7-goog In-Reply-To: <20200430194617.197510-1-dianders@chromium.org> References: <20200430194617.197510-1-dianders@chromium.org> MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org In the cases where there is no connector in a system there's no great place to put "hpd-gpios". As per discussion [1] the best place to put it is in the panel. Add this to the device tree bindings. [1] https://lore.kernel.org/r/20200417180819.GE5861@pendragon.ideasonboard.com Signed-off-by: Douglas Anderson Reviewed-by: Stephen Boyd Reviewed-by: Linus Walleij Reviewed-by: Laurent Pinchart --- Changes in v4: None Changes in v3: None Changes in v2: - ("dt-bindings: display: Add hpd-gpios to panel-common...") new for v2 .../devicetree/bindings/display/panel/panel-common.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/display/panel/panel-common.yaml b/Documentation/devicetree/bindings/display/panel/panel-common.yaml index ed051ba12084..e9a04a3a4f5f 100644 --- a/Documentation/devicetree/bindings/display/panel/panel-common.yaml +++ b/Documentation/devicetree/bindings/display/panel/panel-common.yaml @@ -96,6 +96,12 @@ properties: (hot plug detect) signal, but the signal isn't hooked up so we should hardcode the max delay from the panel spec when powering up the panel. + hpd-gpios: + maxItems: 1 + description: + If Hot Plug Detect (HPD) is connected to a GPIO in the system rather + than a dedicated HPD pin the pin can be specified here. + # Control I/Os # Many display panels can be controlled through pins driven by GPIOs. The nature