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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,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 B3C54C04AAF for ; Sat, 18 May 2019 09:57:25 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 880772087B for ; Sat, 18 May 2019 09:57:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="dK/mVeSQ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 880772087B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-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=bombadil.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=2OxWYpmMDqFDzVePiuGrAznU+MmINoNgE2/dJal0lPI=; b=dK/mVeSQUrQnag Z8K8vaqPlF5K4Wh6Q2RyizzBh68V8Mj/wjpDlPznBZEJuGFTVDDDWzjYPwEq9kq7BR7wYrr5YSy/3 BwWJxQ4bNxIBJ2EUY7dgF1tn0lOz6iAundRFwD1O29WrQJoBig7VijUdnlYk/JrKNXJ9+iiy7+kDp oQPM0FM2mlY9zeKn89dqs38XOVso1AmXPBoPabei9Wz44T4hGtOFALBsqvMnwoSdRxTz5LP+SGB1G nGqeFR7DuX485tbpKZI7FroZHrzvWG7KcbZn+QX3FRWAXmmOH3DhGLNW5njXaFdw1rBD7olipeaxY Isquog2FC/CX8jJmXing==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hRw5d-00066L-HC; Sat, 18 May 2019 09:57:17 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hRw4w-0005Cp-T8; Sat, 18 May 2019 09:56:37 +0000 X-UUID: ededb3511dfb469aacf0df6f38cf11d5-20190518 X-UUID: ededb3511dfb469aacf0df6f38cf11d5-20190518 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1116454765; Sat, 18 May 2019 01:56:30 -0800 Received: from MTKMBS33N2.mediatek.inc (172.27.4.76) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sat, 18 May 2019 02:56:28 -0700 Received: from MTKCAS36.mediatek.inc (172.27.4.186) by MTKMBS33N2.mediatek.inc (172.27.4.76) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sat, 18 May 2019 17:56:26 +0800 Received: from mszsdclx1018.gcn.mediatek.inc (172.27.4.253) by MTKCAS36.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Sat, 18 May 2019 17:56:24 +0800 From: Jitao Shi To: Rob Herring , Pawel Moll , "Mark Rutland" , Ian Campbell , Kumar Gala , , David Airlie , Matthias Brugger Subject: [v4 3/5] drm/mediatek: add mt8183 dpi dual edge support Date: Sat, 18 May 2019 17:56:16 +0800 Message-ID: <20190518095618.18454-4-jitao.shi@mediatek.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190518095618.18454-1-jitao.shi@mediatek.com> References: <20190518095618.18454-1-jitao.shi@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190518_025635_263048_14B32DBF X-CRM114-Status: UNSURE ( 9.43 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: stonea168@163.com, dri-devel@lists.freedesktop.org, Andy Yan , Ajay Kumar , Vincent Palatin , cawa.cheng@mediatek.com, bibby.hsieh@mediatek.com, ck.hu@mediatek.com, Russell King , Thierry Reding , devicetree@vger.kernel.org, Jitao Shi , Philipp Zabel , Inki Dae , linux-mediatek@lists.infradead.org, yingjoe.chen@mediatek.com, eddie.huang@mediatek.com, linux-arm-kernel@lists.infradead.org, Rahul Sharma , srv_heupstream@mediatek.com, linux-kernel@vger.kernel.org, Sascha Hauer , Sean Paul Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add mt8183 dual edge support. DPI sample the data both rising and falling edge. It can reduce half data io pins. Signed-off-by: Jitao Shi --- drivers/gpu/drm/mediatek/mtk_dpi.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index ccef3ac1c560..77e6e0f99188 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -682,6 +682,16 @@ static unsigned int mt2701_calculate_factor(int clock) return 2; } +static unsigned int mt8183_calculate_factor(int clock) +{ + if (clock <= 27000) + return 8; + else if (clock <= 167000) + return 4; + else + return 2; +} + static const struct mtk_dpi_conf mt8173_conf = { .cal_factor = mt8173_calculate_factor, .reg_h_fre_con = 0xe0, @@ -693,6 +703,12 @@ static const struct mtk_dpi_conf mt2701_conf = { .edge_sel_en = true, }; +static const struct mtk_dpi_conf mt8183_conf = { + .cal_factor = mt8183_calculate_factor, + .reg_h_fre_con = 0xe0, + .dual_edge = true, +}; + static int mtk_dpi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -788,6 +804,9 @@ static const struct of_device_id mtk_dpi_of_ids[] = { { .compatible = "mediatek,mt8173-dpi", .data = &mt8173_conf, }, + { .compatible = "mediatek,mt8183-dpi", + .data = &mt8183_conf, + }, { }, }; -- 2.21.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel