From patchwork Sat Apr 11 07:44:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jitao Shi X-Patchwork-Id: 11484015 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DD2D014DD for ; Sat, 11 Apr 2020 07:54:41 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 B28AA20732 for ; Sat, 11 Apr 2020 07:54:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="eY4Ajc6l" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B28AA20732 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 85A336E2AF; Sat, 11 Apr 2020 07:54:37 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mailgw01.mediatek.com (unknown [1.203.163.78]) by gabe.freedesktop.org (Postfix) with ESMTP id DB3C36E2AF for ; Sat, 11 Apr 2020 07:54:35 +0000 (UTC) X-UUID: ca20f138f2294eeaa206a373a3003f2a-20200411 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=oXyxi7IUgBNHR+VYtiCeIx+6ezK7zPDvVd2okeNBTBs=; b=eY4Ajc6lPfU6UoW6d+Zgyi8zWN6CEIVkaop2Eb0I4YNX1i8E+kxlL5OeFlEmVxZNscTTrraLVNIpIa3K2eLXQFE3Q0/MKnPBP0qR1m854F1ZXCubDeHJgeK2zXNdpVVZCgtIOn1Mm0Y5n8KI/MwI+SgW4eSDXODvKmm+1gatLQQ=; X-UUID: ca20f138f2294eeaa206a373a3003f2a-20200411 Received: from mtkcas36.mediatek.inc [(172.27.4.253)] by mailgw01.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLS) with ESMTP id 1935581233; Sat, 11 Apr 2020 15:44:28 +0800 Received: from MTKCAS36.mediatek.inc (172.27.4.186) by MTKMBS33N2.mediatek.inc (172.27.4.76) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 11 Apr 2020 15:44:26 +0800 Received: from mszsdclx1018.gcn.mediatek.inc (10.16.6.18) by MTKCAS36.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 11 Apr 2020 15:44:23 +0800 From: Jitao Shi To: Rob Herring , Mark Rutland , Matthias Brugger , Daniel Vetter , David Airlie , , Subject: [PATCH v6 1/4] dt-bindings: display: mediatek: add property to control mipi tx drive current Date: Sat, 11 Apr 2020 15:44:05 +0800 Message-ID: <20200411074408.38090-2-jitao.shi@mediatek.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20200411074408.38090-1-jitao.shi@mediatek.com> References: <20200411074408.38090-1-jitao.shi@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 0005373B2C71D73AF1CED7A230B00BB7B6A072EA461E12CD676996CB520C10192000:8 X-MTK: N X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Jitao Shi , srv_heupstream@mediatek.com, Chun-Kuang Hu , huijuan.xie@mediatek.com, stonea168@163.com, cawa.cheng@mediatek.com, linux-mediatek@lists.infradead.org, yingjoe.chen@mediatek.com, eddie.huang@mediatek.com, linux-arm-kernel@lists.infradead.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add a property to control mipi tx drive current: "drive-strength-microamp" Reviewed-by: Chun-Kuang Hu Signed-off-by: Jitao Shi Reviewed-by: Rob Herring --- .../devicetree/bindings/display/mediatek/mediatek,dsi.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt index a19a6cc375ed..d78b6d6d8fab 100644 --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt @@ -33,6 +33,10 @@ Required properties: - #clock-cells: must be <0>; - #phy-cells: must be <0>. +Optional properties: +- drive-strength-microamp: adjust driving current, should be 3000 ~ 6000. And + the step is 200. + Example: mipi_tx0: mipi-dphy@10215000 { @@ -42,6 +46,7 @@ mipi_tx0: mipi-dphy@10215000 { clock-output-names = "mipi_tx0_pll"; #clock-cells = <0>; #phy-cells = <0>; + drive-strength-microamp = <4600>; }; dsi0: dsi@1401b000 {