From patchwork Sun Jan 8 16:56:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 640384 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BB542C63797 for ; Sun, 8 Jan 2023 16:57:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233542AbjAHQ5K (ORCPT ); Sun, 8 Jan 2023 11:57:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44106 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233580AbjAHQ5H (ORCPT ); Sun, 8 Jan 2023 11:57:07 -0500 Received: from mail-lj1-x22b.google.com (mail-lj1-x22b.google.com [IPv6:2a00:1450:4864:20::22b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0422260C5 for ; Sun, 8 Jan 2023 08:57:06 -0800 (PST) Received: by mail-lj1-x22b.google.com with SMTP id g14so6532524ljh.10 for ; Sun, 08 Jan 2023 08:57:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=NH1d+1PPDWydMKrpXiB7N/7rHowCambw1HmOt4U8TEY=; b=Mc3S+dGTVyt3txPpj+xX7j2IQEbdfxP887iPwB8+OpSsJetRWSzuWELPuhoc8AJHJE Chz4gJNUCA0DO9/rcAF1QNSr7fg3NKrSRe3VVeL1LKqqcZIWJX1Ier/rtAY68BAAqLT3 WrnBLU1TtpZkOrE3YGD7kNHPKmhbAFzF1AAC6uWZ1Xja5Sy/1DcxlRkZaa3XKlKqC5yZ OeKP4sYO3w8qC7JGmQNEn332SDfM/nf9DrmEvdzbdBZOZAXLx1A4a2ljK9C1LD6exSTx bYTq2XNnMtbTAZZpKByQibYXU5ilPYJl0dQ66bCAbg2AyQ6olSFDF01EoiSwFajuAAG9 +r+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=NH1d+1PPDWydMKrpXiB7N/7rHowCambw1HmOt4U8TEY=; b=quAv92eTDqSdaFv7PDpyukntVaTiUe7vaGMXABlQkrqNU1/NGD5SDSaC9L3wJqIHxz LrcyJoXo+/yLWBV4PXjvZKz9XPFEYwUBgkC8sqQakvddh/bXwmzYUHF6kgo1V9e99fMh gxHoAgk1vSr0IqXEbBXF+2KDPGVuYE4a0gOlOxkYlFSR8gI5zxnL8HnosRAwz4TmHeMD t32uq/9WYgiGuTjPuCdjOjCVKd97unmj8MJCimEEfrq1iBzINcRXW0bLUAuN30xxPK8l hWfGaIm8qx6xOs1wJ+iQC2bQWYIv4q9+ii+posQDTBby1YD8aibNs815PwKGbu7ZoiGG L63g== X-Gm-Message-State: AFqh2krNPWnO6NT8usy4Xue6C0MLclfXznkkyH3Pv1Uswb1YjL1WVIfR JiT5xRyH46gXXBdzE1NwZ3JnUw== X-Google-Smtp-Source: AMrXdXssQ9vFGz21nmCaS2uBYJfIJBiPV2tuSTMIYZFfwOKfLE65KNuB3AcOhiEe6S+RBjkOIi7NAw== X-Received: by 2002:a2e:9207:0:b0:27f:ba2d:6d64 with SMTP id k7-20020a2e9207000000b0027fba2d6d64mr13436717ljg.43.1673197024406; Sun, 08 Jan 2023 08:57:04 -0800 (PST) Received: from eriador.lan (dzccz6yyyyyyyyyyybcwt-3.rev.dnainternet.fi. [2001:14ba:a085:4d00::8a5]) by smtp.gmail.com with ESMTPSA id s2-20020a056512202200b004b561b211adsm1138323lfs.254.2023.01.08.08.57.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Jan 2023 08:57:03 -0800 (PST) From: Dmitry Baryshkov To: Vinod Koul , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec Cc: David Airlie , Daniel Vetter , dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-arm-msm@vger.kernel.org Subject: [PATCH v2 09/13] drm/bridge: lt9611: fix sync polarity for DVI output Date: Sun, 8 Jan 2023 18:56:52 +0200 Message-Id: <20230108165656.136871-10-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230108165656.136871-1-dmitry.baryshkov@linaro.org> References: <20230108165656.136871-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Attaching DVI sink to the lt9611 requires different setup. Fix the register write to make the DVI displays sync onto the correct sync pulse. Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/bridge/lontium-lt9611.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c index 773d7a56f86f..7f9be74acf0d 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c @@ -352,13 +352,16 @@ static int lt9611_video_check(struct lt9611 *lt9611) return temp; } -static void lt9611_hdmi_tx_digital(struct lt9611 *lt9611) +static void lt9611_hdmi_tx_digital(struct lt9611 *lt9611, bool is_hdmi) { regmap_write(lt9611->regmap, 0x8443, 0x46 - lt9611->vic); regmap_write(lt9611->regmap, 0x8447, lt9611->vic); regmap_write(lt9611->regmap, 0x843d, 0x0a); /* UD1 infoframe */ - regmap_write(lt9611->regmap, 0x82d6, 0x8c); + if (is_hdmi) + regmap_write(lt9611->regmap, 0x82d6, 0x8c); + else + regmap_write(lt9611->regmap, 0x82d6, 0x0c); regmap_write(lt9611->regmap, 0x82d7, 0x04); } @@ -719,7 +722,7 @@ lt9611_bridge_atomic_enable(struct drm_bridge *bridge, } lt9611_mipi_input_analog(lt9611); - lt9611_hdmi_tx_digital(lt9611); + lt9611_hdmi_tx_digital(lt9611, connector->display_info.is_hdmi); lt9611_hdmi_tx_phy(lt9611); msleep(500);