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=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 B7E99C282D8 for ; Fri, 1 Feb 2019 15:42:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 864CD20855 for ; Fri, 1 Feb 2019 15:42:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.b="a6XRj6mc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728729AbfBAPm4 (ORCPT ); Fri, 1 Feb 2019 10:42:56 -0500 Received: from mail-lf1-f68.google.com ([209.85.167.68]:45725 "EHLO mail-lf1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727709AbfBAPmw (ORCPT ); Fri, 1 Feb 2019 10:42:52 -0500 Received: by mail-lf1-f68.google.com with SMTP id b20so5343229lfa.12 for ; Fri, 01 Feb 2019 07:42:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=KSKVSjXuDqX8qVP7wbNkntCeAwoHR9UN0XE4gqIgPW0=; b=a6XRj6mcKzdddh9NgF8xjIWhC6Pxg3NCcHQ0ThD3sb6SPtVIm6gWJxvP3O998vZPbV uWHr31dWA4d384palxO0CBW1rzlT+uCPKakDnEjb5mQlbLhaAhcH3ZBEcA9OYgoczKGf cdp2PtfXGzhu9DkpSQ4GGc8Ng8RTWxxHN6QDc= 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=KSKVSjXuDqX8qVP7wbNkntCeAwoHR9UN0XE4gqIgPW0=; b=SJ2v3DD/YNBqPALYXL5C9WI3f80kIwNO8FelKlGO9RGNaz0CJpVzstReGeRs3mIhBt MGAhFXR8af3u2a5voDOZV5Mw+AWaE9SwLHzKIkIVAECX1ROWwdWbaznpl6pzjfIyoezK 7yqJnP2B4N0oChetl5AXYPWj+L1XMxvLQOQVATwuwJTv+mFDyJ2iqlbqfPiT4AnRX/aX DCrjhBFt/AAligfwHFoK/jAI+ixbt3W2fix6DsxICnb+SHSua8uD7gmSz4gDVzgUHSdr 0nHNkEliHY21kq6yfA2p5T0SJRY4JK72GycVR9ldJw/vlX8g1KUo8Rz9ogNzJJZTJWhw MVlw== X-Gm-Message-State: AJcUukcC4WYJxTg5pYE82rZRh6qccbQuGlsatWQA6syW2nFGTGZb8sXZ UJRQo54+hE8YNETeaUkqB9ewTQ== X-Google-Smtp-Source: ALg8bN69BbOfJ2VajX52TeZC1kbyZ8eT25C4noLsYruftgcvouYiue/ElAIGOlEuYE0hTGFw+X3WtA== X-Received: by 2002:a19:59c2:: with SMTP id n185mr30250576lfb.118.1549035768170; Fri, 01 Feb 2019 07:42:48 -0800 (PST) Received: from localhost.localdomain ([217.76.202.68]) by smtp.gmail.com with ESMTPSA id i13-v6sm1305712ljg.82.2019.02.01.07.42.46 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 01 Feb 2019 07:42:47 -0800 (PST) From: Jagan Teki To: Maxime Ripard , David Airlie , Daniel Vetter , Chen-Yu Tsai , Michael Turquette , Rob Herring , Mark Rutland Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, Michael Trimarchi , linux-amarula@amarulasolutions.com, linux-sunxi@googlegroups.com, Jagan Teki Subject: [PATCH v7 02/23] drm/sun4i: sun6i_mipi_dsi: Support instruction loop selection Date: Fri, 1 Feb 2019 21:12:11 +0530 Message-Id: <20190201154232.10505-3-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.18.0.321.gffc6fa0e3 In-Reply-To: <20190201154232.10505-1-jagan@amarulasolutions.com> References: <20190201154232.10505-1-jagan@amarulasolutions.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 Instruction loop selection would require before writing loop number registers, so enable idle, LP11 bits on loop selection register. Reference code available in BSP (from linux-sunxi/ drivers/video/sunxi/disp2/disp/de/lowlevel_sun50iw1/de_dsi.c) (dsi_dev[sel]->dsi_inst_loop_sel.dwval = 2<<(4*DSI_INST_ID_LP11) | 3<<(4*DSI_INST_ID_DLY); Signed-off-by: Jagan Teki Tested-by: Merlijn Wajer --- drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c index a5fcee750bee..813d5523f1c7 100644 --- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c +++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c @@ -403,6 +403,9 @@ static void sun6i_dsi_setup_inst_loop(struct sun6i_dsi *dsi, { u16 delay = sun6i_dsi_setup_inst_delay(dsi, mode); + regmap_write(dsi->regs, SUN6I_DSI_INST_LOOP_SEL_REG, + DSI_INST_ID_HSC << (4 * DSI_INST_ID_LP11) | + DSI_INST_ID_HSD << (4 * DSI_INST_ID_DLY)); regmap_write(dsi->regs, SUN6I_DSI_INST_LOOP_NUM_REG(0), SUN6I_DSI_INST_LOOP_NUM_N0(50 - 1) | SUN6I_DSI_INST_LOOP_NUM_N1(delay)); -- 2.18.0.321.gffc6fa0e3