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=-13.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, 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=unavailable 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 876ADC43461 for ; Fri, 4 Sep 2020 11:02:07 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4FA5C2074D for ; Fri, 4 Sep 2020 11:02:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="IVEv1njt"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mailerdienst.de header.i=@mailerdienst.de header.b="vCVCqRsE" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4FA5C2074D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=fw-web.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=4ujK5gclqyk6LlJ++YZ52yTpohlcWMwIoRVSBb40NME=; b=IVEv1njtYNcSwUQCFjGvdzVBu cGVrp6xyPjXlQIAI68063iZxaD25u9Z+8xpqyEg1rKI4REQDNAkvf1gWR3lbLwI5S8eeu1B6oSVxX i0kHABKKL1TlWfIcX73ALy33Sgrj1+oHxxCdQwMlCyLfJJJV6YeX3VmI5GtZTCUtQNAZ6XkczBDPU IynOy0wLz38sItbvBkxA3M4l0X/jRaj99Ap8j9T2GkbC4hF/g2I+JVPsuunk+gU86FQOk83HEDDJo zZ6LUk8n8Sjzepohr+sKhdKVZ7bA//kvn4ogOm5lxtqb6uhNymeB2YM7sCWCoR5GEwOkwTHduSI0I LgVpy2ruA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kE9SZ-0008PB-Sm; Fri, 04 Sep 2020 11:00:48 +0000 Received: from mxout2.routing.net ([2a03:2900:1:a::b]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kE9SS-0008Md-Ev; Fri, 04 Sep 2020 11:00:41 +0000 Received: from mxbox3.masterlogin.de (unknown [192.168.10.78]) by mxout2.routing.net (Postfix) with ESMTP id BEB3A5FC6A; Fri, 4 Sep 2020 11:00:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailerdienst.de; s=20200217; t=1599217229; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=JdElUpIkbQ13/jUvuSuFFzq8Cu6tg4R6UAkzid3KcG8=; b=vCVCqRsEwRtRMEqZXV09NTx/KmrnvClTwVoFAODo3XdxmnUYOB0gaMt58UbU4ETGMtRqMy nLANscbjr4+UdVsIeZ5v03w4OsYCeWqX6xnfJHlZ3TfkG3H8qhrBSpesYcyKYAdj2PPjl+ y5yZnH0mW8b64PB6aHaZ1lToJ/Oy7n8= Received: from localhost.localdomain (fttx-pool-217.61.147.193.bambit.de [217.61.147.193]) by mxbox3.masterlogin.de (Postfix) with ESMTPSA id 0F39E3604C2; Fri, 4 Sep 2020 11:00:29 +0000 (UTC) From: Frank Wunderlich To: linux-mediatek@lists.infradead.org, Chun-Kuang Hu , Matthias Brugger Subject: [PATCH v6 1/4] drm/mediatek: disable tmds on mt2701 Date: Fri, 4 Sep 2020 12:59:59 +0200 Message-Id: <20200904110002.88966-2-linux@fw-web.de> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200904110002.88966-1-linux@fw-web.de> References: <20200904110002.88966-1-linux@fw-web.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200904_070041_006778_D11264FC X-CRM114-Status: GOOD ( 14.09 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Ryder Lee , Frank Wunderlich , chunhui dai , Sean Wang , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Kishon Vijay Abraham I , Rob Herring , Philipp Zabel , Chunfeng Yun , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: chunhui dai Without that patch if you use specific resolutions like 1280x1024, I can see distortion in the output. It seems as if the frequency for updating the pixel of the image is out of sync. For initialization tmds needs to be active, but can be disabled after init to fix blurry display Signed-off-by: chunhui dai Signed-off-by: Frank Wunderlich Tested-by: Frank Wunderlich --- drivers/phy/mediatek/phy-mtk-hdmi-mt2701.c | 1 + drivers/phy/mediatek/phy-mtk-hdmi.c | 3 +++ drivers/phy/mediatek/phy-mtk-hdmi.h | 1 + 3 files changed, 5 insertions(+) diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt2701.c b/drivers/phy/mediatek/phy-mtk-hdmi-mt2701.c index a6cb1dea3d0c..b74c65a1762c 100644 --- a/drivers/phy/mediatek/phy-mtk-hdmi-mt2701.c +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt2701.c @@ -238,6 +238,7 @@ static void mtk_hdmi_phy_disable_tmds(struct mtk_hdmi_phy *hdmi_phy) struct mtk_hdmi_phy_conf mtk_hdmi_phy_2701_conf = { .flags = CLK_SET_RATE_GATE, + .pll_default_off = true, .hdmi_phy_clk_ops = &mtk_hdmi_phy_pll_ops, .hdmi_phy_enable_tmds = mtk_hdmi_phy_enable_tmds, .hdmi_phy_disable_tmds = mtk_hdmi_phy_disable_tmds, diff --git a/drivers/phy/mediatek/phy-mtk-hdmi.c b/drivers/phy/mediatek/phy-mtk-hdmi.c index 8fc83f01a720..47c029d4b270 100644 --- a/drivers/phy/mediatek/phy-mtk-hdmi.c +++ b/drivers/phy/mediatek/phy-mtk-hdmi.c @@ -184,6 +184,9 @@ static int mtk_hdmi_phy_probe(struct platform_device *pdev) return PTR_ERR(phy_provider); } + if (hdmi_phy->conf->pll_default_off) + hdmi_phy->conf->hdmi_phy_disable_tmds(hdmi_phy); + return of_clk_add_provider(dev->of_node, of_clk_src_simple_get, hdmi_phy->pll); } diff --git a/drivers/phy/mediatek/phy-mtk-hdmi.h b/drivers/phy/mediatek/phy-mtk-hdmi.h index b13e1d5f8e78..dcf9bb13699b 100644 --- a/drivers/phy/mediatek/phy-mtk-hdmi.h +++ b/drivers/phy/mediatek/phy-mtk-hdmi.h @@ -21,6 +21,7 @@ struct mtk_hdmi_phy; struct mtk_hdmi_phy_conf { unsigned long flags; + bool pll_default_off; const struct clk_ops *hdmi_phy_clk_ops; void (*hdmi_phy_enable_tmds)(struct mtk_hdmi_phy *hdmi_phy); void (*hdmi_phy_disable_tmds)(struct mtk_hdmi_phy *hdmi_phy); -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel