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,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 F161BC43381 for ; Thu, 14 Feb 2019 19:33:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BA634222D4 for ; Thu, 14 Feb 2019 19:33:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.b="OeoCqo+1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2437247AbfBNTc7 (ORCPT ); Thu, 14 Feb 2019 14:32:59 -0500 Received: from mail-pl1-f196.google.com ([209.85.214.196]:37492 "EHLO mail-pl1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2405962AbfBNTc6 (ORCPT ); Thu, 14 Feb 2019 14:32:58 -0500 Received: by mail-pl1-f196.google.com with SMTP id b5so3675233plr.4 for ; Thu, 14 Feb 2019 11:32:58 -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=9m6ReoBLBZFOeMQ09Fo4ZfosvrNH9XVGYhAEmEbH5dY=; b=OeoCqo+1i6jzEn5S5XDmRKxrzslqlqYs/BvduK85Glf5ZV1W2o23Sx7cdG38olCj7e hdkC78PBImdtCLjMwJS+HAmt0f9+vy/Xu9y6Hx44az+uv6BqY4ycKa2Y6P2KOMJPlB+0 /TwNNnv5NyIJsMfZCaKrAJGzu0pZ2Bx3MEdiU= 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=9m6ReoBLBZFOeMQ09Fo4ZfosvrNH9XVGYhAEmEbH5dY=; b=trxCmjmZ/ZfboAF6Voa8X6U0J+upfVmY4jNTN18x0KIHqi8IVyUMpZW9lnTfyxEn48 71C+uZ4ROXMZdx4JAuUsww2MRUG0gP6OE6GPrNJrlgcpqTK2vCcZqj4RW7i84uMNfNHy MnsZvIcTzKrS+zj86ASCmxDNUnSYwZroCZGKPhUOpNe/YpQ7ZyKKd8wz96AvSs8G7C61 L2EUCkRVVDQutC7umvOnqtIJU5RQcnI6ricFpzutBliJXkc6+pFA6ztmsbTtnTRy+0Zp NS43cLUboyDhVwLrWr9f3SQnwjudVD39JrA76K0oEEI+FOy1tOoLqwnGxSR13x3LuVF/ YPJg== X-Gm-Message-State: AHQUAuaWiyuEdZQeK+QtOiO2yUav9z3TWFmVg/xK1VfQ08vAvl09GOax +mLaiO0IWXAaZvKXJDGFr4jRmw== X-Google-Smtp-Source: AHgI3IapVc576RPyNQeLXBiOhwHc8LrJB3pQYJLbmAl68gLhk5RNwUKAtczEDY1JZy+5na4RFvDE4w== X-Received: by 2002:a17:902:2ba8:: with SMTP id l37mr5888652plb.243.1550172778007; Thu, 14 Feb 2019 11:32:58 -0800 (PST) Received: from localhost.localdomain ([115.97.184.151]) by smtp.gmail.com with ESMTPSA id o23sm10808832pfa.140.2019.02.14.11.32.54 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 14 Feb 2019 11:32:57 -0800 (PST) From: Jagan Teki To: Maxime Ripard , David Airlie , Daniel Vetter , Chen-Yu Tsai Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-amarula@amarulasolutions.com, Michael Trimarchi , Jagan Teki Subject: [PATCH v8 02/10] drm/sun4i: sun6i_mipi_dsi: Support instruction loop selection Date: Fri, 15 Feb 2019 01:02:29 +0530 Message-Id: <20190214193236.7504-3-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.18.0.321.gffc6fa0e3 In-Reply-To: <20190214193236.7504-1-jagan@amarulasolutions.com> References: <20190214193236.7504-1-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 8184fbcfd9fd..1a0707468121 100644 --- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c +++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c @@ -421,6 +421,9 @@ 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