From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 8E605C04AAC for ; Mon, 20 May 2019 13:48:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 625F821479 for ; Mon, 20 May 2019 13:48:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20150623.gappssmtp.com header.i=@baylibre-com.20150623.gappssmtp.com header.b="ECz4Hpcn" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389853AbfETNs2 (ORCPT ); Mon, 20 May 2019 09:48:28 -0400 Received: from mail-wr1-f66.google.com ([209.85.221.66]:38004 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389715AbfETNs1 (ORCPT ); Mon, 20 May 2019 09:48:27 -0400 Received: by mail-wr1-f66.google.com with SMTP id d18so14711017wrs.5 for ; Mon, 20 May 2019 06:48:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=WgQQkRup1RP/+DNyWfqO+Epqum0KCIs3YroTyrmMm+M=; b=ECz4HpcncgSFwRp81ULoGgyzEIf01j7MVMVLUZs5icfIEXRflAb/GdIZWzBcr1afr/ WM6xeLK2gQpzHdGOjHFjxZoVP8gTIryAKKa6EUxoGNw7r+rXxtAMkPaNkUAzEfWikVh4 9lGze587fgpcG71LRQ5fv3KjqmA3GizDMCnzJwrHsZ49sUaM33yumda5F1Z9HoR47goe 3pWjQg9XGdwFRxHhxphQAeKvU8UZfYDiA75fbivygOL7h+iJzzckvEaE7f6Y+kQdtLcq pLT015MGQzFCjpLqAN/abu/1p9WpcJbyTEaUZz8tSRRCtpw3ogSH1vxoDjYxasMSBQCV +Zsw== 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=WgQQkRup1RP/+DNyWfqO+Epqum0KCIs3YroTyrmMm+M=; b=nFlIWTzqhK45fWB324YBf9vg+x6p+60hxBjwczmkas2AhfDztRlcKz7wgveZ7xf6wQ l5jMGdLAQdcIeLr0Le+Ua6pxBekOjNyhA+SaCo3x7yt7E7jd1I+GwKqQqLCFJLB4jJLr iaToO9d9wIhjPqYQujBS8D+rUJy+4r6BLbStGf2pE9L1tzLYDN1UNZumcD11M7r2JerM DtWKbcby6ZegyrsyZ7D3fOL1VfAAy6dobk9d+8mx7QGoHN+hi1WcYWP5ek+oNH1OpezQ VmXujsQkOygSJIfQuQDLiMTIqarJorhZ0L18ZjGxLcDH24pi91mZYZPdKcqEYIdsN+5x dzMw== X-Gm-Message-State: APjAAAXDQ6QxPFq6tf7hQzFia74uvi4br/hBZMcPwODUeDtkePvGRnU0 2ppRiiUcs0XkeKJU5WaQ2feU/w== X-Google-Smtp-Source: APXvYqz03Oc3TW8sF7k3k7ydP3/3Hz99odDAm9g4tJMrQuAYQOPdZACa3NTVTLiwAg2Y0+KJDpcBug== X-Received: by 2002:adf:f049:: with SMTP id t9mr25662404wro.17.1558360105562; Mon, 20 May 2019 06:48:25 -0700 (PDT) Received: from bender.baylibre.local (lmontsouris-657-1-212-31.w90-63.abo.wanadoo.fr. [90.63.244.31]) by smtp.gmail.com with ESMTPSA id h12sm12091358wre.14.2019.05.20.06.48.24 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 20 May 2019 06:48:24 -0700 (PDT) From: Neil Armstrong To: khilman@baylibre.com Cc: Neil Armstrong , linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/3] arm64: dts: meson: g12a: add drive-strength hdmi ddc pins Date: Mon, 20 May 2019 15:48:15 +0200 Message-Id: <20190520134817.25435-2-narmstrong@baylibre.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190520134817.25435-1-narmstrong@baylibre.com> References: <20190520134817.25435-1-narmstrong@baylibre.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org With the default boot settings, the DDC drive strength is too weak, set the driver-strengh to 4mA to avoid errors on the DDC line. Signed-off-by: Neil Armstrong --- arch/arm64/boot/dts/amlogic/meson-g12a.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi index 5b4942c73e65..aa678d92238b 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi @@ -327,6 +327,7 @@ "hdmitx_sck"; function = "hdmitx"; bias-disable; + drive-strength-microamp = <4000>; }; }; -- 2.21.0