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 D5D24C43441 for ; Fri, 16 Nov 2018 16:40:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 99E562087C for ; Fri, 16 Nov 2018 16:40:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.b="S2T6BdWe" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 99E562087C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=amarulasolutions.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390312AbeKQCxw (ORCPT ); Fri, 16 Nov 2018 21:53:52 -0500 Received: from mail-pf1-f196.google.com ([209.85.210.196]:44537 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390166AbeKQCxv (ORCPT ); Fri, 16 Nov 2018 21:53:51 -0500 Received: by mail-pf1-f196.google.com with SMTP id b81-v6so11157946pfe.11 for ; Fri, 16 Nov 2018 08:40:45 -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=MRo42Xf+FQpuD9HBlP4kHgZ6kHSlZrL0EE25YHygWMY=; b=S2T6BdWe4saNqr8iZpsCHP/vmNp1zYBDZeUNmr44SF6J0TY+di02NvuGEMk3OMnRqd uodzP5KSJsAw856X8sbpZ1+C7XmfY652LOfU1ARhg4s78dhnVad0Gz5/h8XmY1SEGuBp DFbaA1ROMKE1CPSDJAPai98J4NwIkPl1derII= 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=MRo42Xf+FQpuD9HBlP4kHgZ6kHSlZrL0EE25YHygWMY=; b=lNCFgsvDzkjwMXC07jyE4Ocg3ByWwIDmC7Fidekn7dvVUaD+2G2bmbVpqlcY54pJrz YHiSZFckvV99sj5i1sCMPlTikj3D7uV4Ky7gjdeGIvJOoj0jRapgUQ3Jr1+zyo9RHzS9 +dPz6IS2cq2Gm8oy8PWDMBT8Z5eZBnqEZIJZOGKxvCqvxtUzPPv9MCoh5hwcD9OocwTZ SZCsenSpnkbyOotxQ3qGwcKOBQw59Q42KOipZTSchqopjbc1U7ZezJUQ7PMMDDbbtD12 B6HJhwXNadAYqwDfjd4tRwOSC5yUtRbYTdb1EPYfKltCcVqnVltH4iF6OcF8b6bHePb7 A0cQ== X-Gm-Message-State: AGRZ1gJzQtKedLMy7G/+2XofMkhaBHWuHvA4g3XWt/T9B/Byjj4hsDPO 9iEccG/1+lY7fxMH2zD17Etgrg== X-Google-Smtp-Source: AJdET5dZ5SU50zmOjkRJkoJuTE+S0902DCIO0+YdWzY+sLBUXEOUSOcfG/pI+yUb0aZoOL90/n2p9Q== X-Received: by 2002:a62:528e:: with SMTP id g136mr7747262pfb.111.1542386445340; Fri, 16 Nov 2018 08:40:45 -0800 (PST) Received: from localhost.localdomain ([115.97.190.86]) by smtp.gmail.com with ESMTPSA id p5-v6sm34622213pfb.109.2018.11.16.08.40.38 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 16 Nov 2018 08:40:44 -0800 (PST) From: Jagan Teki To: Maarten Lankhorst , Maxime Ripard , Sean Paul , David Airlie , Rob Herring , Chen-Yu Tsai , Icenowy Zheng , Jernej Skrabec , Vasily Khoruzhick , Thierry Reding , Mark Rutland , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Michael Trimarchi , TL Lim , linux-sunxi@googlegroups.com, linux-amarula@amarulasolutions.com Cc: Jagan Teki Subject: [PATCH v2 09/12] drm/sun4i: sun6i_mipi_dsi: Enable burst mode HBP, HSA_HSE Date: Fri, 16 Nov 2018 22:09:13 +0530 Message-Id: <20181116163916.29621-10-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.18.0.321.gffc6fa0e3 In-Reply-To: <20181116163916.29621-1-jagan@amarulasolutions.com> References: <20181116163916.29621-1-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 Horizontal back porch, sync active and sync end bits are needed to disable for burst mode panel operations. So, disable them via dsi base control register. Signed-off-by: Jagan Teki --- drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c index 22d2987c3298..20a1de8493e0 100644 --- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c +++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c @@ -644,15 +644,21 @@ static void sun6i_dsi_setup_timings(struct sun6i_dsi *dsi, struct sun6i_dsi_timings timings; size_t bytes; u8 *buffer; + u32 val = 0; /* Do all timing calculations up front to allocate buffer space */ memset(&timings, 0, sizeof(timings)); - if (device->mode_flags & MIPI_DSI_MODE_VIDEO_BURST) + if (device->mode_flags & MIPI_DSI_MODE_VIDEO_BURST) { timings.hblk = (mode->hdisplay * Bpp); - else + + regmap_read(dsi->regs, SUN6I_DSI_BASIC_CTL_REG, &val); + val |= SUN6I_DSI_BASIC_CTL_HBP_DIS; + val |= SUN6I_DSI_BASIC_CTL_HSA_HSE_DIS; + } else { sun6i_dsi_get_timings(dsi, mode, &timings); + } /* How many bytes do we need to send all payloads? */ bytes = max_t(size_t, max(max(timings.hfp, timings.hblk), @@ -661,7 +667,7 @@ static void sun6i_dsi_setup_timings(struct sun6i_dsi *dsi, if (WARN_ON(!buffer)) return; - regmap_write(dsi->regs, SUN6I_DSI_BASIC_CTL_REG, 0); + regmap_write(dsi->regs, SUN6I_DSI_BASIC_CTL_REG, val); regmap_write(dsi->regs, SUN6I_DSI_SYNC_HSS_REG, sun6i_dsi_build_sync_pkt(MIPI_DSI_H_SYNC_START, -- 2.18.0.321.gffc6fa0e3