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=-8.8 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=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 DCD57C0044C for ; Sat, 3 Nov 2018 10:10:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A21352082E for ; Sat, 3 Nov 2018 10:10:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.b="kynS843W" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A21352082E 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 S1728659AbeKCTVB (ORCPT ); Sat, 3 Nov 2018 15:21:01 -0400 Received: from mail-pg1-f196.google.com ([209.85.215.196]:45793 "EHLO mail-pg1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728578AbeKCTVB (ORCPT ); Sat, 3 Nov 2018 15:21:01 -0400 Received: by mail-pg1-f196.google.com with SMTP id y4so1615025pgc.12 for ; Sat, 03 Nov 2018 03:10:13 -0700 (PDT) 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=Ce7dCP7DfFpA1e50RettNtIdS5/8ZiyxnOTveZEOqbc=; b=kynS843WNKVgkuX88acq89wg8byWQ/X6sYeDsUTzFb8dIlI9nH/aSoo9oDSpB7O2Ag MTZgpW12Z6sr0svz+RnwqbW1Sgpq7Ph+JkgVuGL7UcUpbv+KDwl4atFt01kBd+GhFFoe OsmVUrr+cGV4XTS1tQuYJtjj+ESCGB11OAcuw= 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=Ce7dCP7DfFpA1e50RettNtIdS5/8ZiyxnOTveZEOqbc=; b=FYxY+/22it0VaaqLE9f4fJ8oyg9rFNUq9vuKNccCno0O+yvsw4yV6QDSpgwsONPIYB 1XRL+He+fwqWuslcgpRfVuBimfIbw9KlYYui9VBH4CJWV4j76MboHlbcN11IhC3R6QM+ oZbl2Ftbk3pyXXybkV2kOp1z/5QuCXwx9aoMZxJ6QJ3Wg5JWozqqVnw5DJKrtyV9dbt8 tUM6O3TbhQRybI8+cwhlCSnOnDGKNE8RyblmXMV2HwQx5GjPawZ55xH2GP93EdwtjpNO GDsLsDOo+YtPj9YfaqlOnPr+NXivDFwA6VJM3H+j4k6+GXwUOEZ3hh45rTMG6dai7aB0 cgWQ== X-Gm-Message-State: AGRZ1gLM18ADj2BDun/nsw1L/ZkKMIH1zdSzYdHAyrLNQDTagpc9KukZ XwTwEKPfSWdgrdH2YW4r/Vxj9M77wWQ= X-Google-Smtp-Source: AJdET5e+pQzSqMcJNJABb28K3oUehx7FlxwUeNS9B+nUNPjuQyX+XcrQxRdm5S+2gEoaL/VSsMJfMw== X-Received: by 2002:a63:4384:: with SMTP id q126mr13740690pga.160.1541239812653; Sat, 03 Nov 2018 03:10:12 -0700 (PDT) Received: from localhost.localdomain ([2405:204:6094:3f7a:ed0a:fb74:1220:defe]) by smtp.gmail.com with ESMTPSA id z79-v6sm28466823pfl.33.2018.11.03.03.10.06 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 03 Nov 2018 03:10:12 -0700 (PDT) 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 Cc: Jagan Teki Subject: [PATCH 07/10] drm/sun4i: sun6i_mipi_dsi: Enable burst mode HBP, HSA_HSE Date: Sat, 3 Nov 2018 15:38:57 +0530 Message-Id: <20181103100900.30313-8-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.18.0.321.gffc6fa0e3 In-Reply-To: <20181103100900.30313-1-jagan@amarulasolutions.com> References: <20181103100900.30313-1-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 enable for burst mode panel operations. So, enable them via dsi base control register. Signed-off-by: Jagan Teki --- drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c index 2d34e5f48d29..feb8c54c5146 100644 --- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c +++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c @@ -518,6 +518,7 @@ static void sun6i_dsi_setup_timings(struct sun6i_dsi *dsi, u16 hbp, hfp_pkt_overhead, hfp, hsa, hblk, vblk; size_t bytes; u8 *buffer; + u32 val = 0; /* Do all timing calculations up front to allocate buffer space */ @@ -527,6 +528,10 @@ static void sun6i_dsi_setup_timings(struct sun6i_dsi *dsi, hblk = mode->hdisplay * Bpp; hfp = 0; vblk = 0; + + 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 { /* * A sync period is composed of a blanking packet (4 bytes + @@ -594,7 +599,7 @@ 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