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 877D6C0044C for ; Sat, 3 Nov 2018 10:09:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4F74320847 for ; Sat, 3 Nov 2018 10:09:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.b="oP4oHcl3" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4F74320847 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 S1728388AbeKCTUS (ORCPT ); Sat, 3 Nov 2018 15:20:18 -0400 Received: from mail-pl1-f196.google.com ([209.85.214.196]:38571 "EHLO mail-pl1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726888AbeKCTUR (ORCPT ); Sat, 3 Nov 2018 15:20:17 -0400 Received: by mail-pl1-f196.google.com with SMTP id p7-v6so2140577plk.5 for ; Sat, 03 Nov 2018 03:09:30 -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=ItiKdY/aqQ72CaiAvq/zBxi6LN6Pf1wyAwPGh/IMHHQ=; b=oP4oHcl3zRwyD7AEbNu3WwJ/L5SL4JweeBHJviTFRgDzWF2QjkMl7dsUpMId3phf1R 9QCZ1l7pWSW3UK//1MAgXzqYzZyUN6+QhJ4LPyckL5dG5QO3aSTTkUN+e2PDf1rR05AO tVgA3tYbD984GBtlvujRlQJhOiLIhMA5H3NzE= 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=ItiKdY/aqQ72CaiAvq/zBxi6LN6Pf1wyAwPGh/IMHHQ=; b=okcl7gu0X0sQjT89G5mGWx3dZfG1Z0bufYx10Qe8dtgGPgW9mprcidShPvK7FhPDCc yoNi6CBQJFEiEDJLI6ILZR/2KfH5hG41XfKVdKyxPqrxup8oVDVvGYKdkUqTRtz3YjZA dYQhXpbfz4dwwvDEi2/UA66+U4Y40bJZjwUPr+tVtKPXsXmdVl5prpprqffYnUKpVWZ6 tfo5+a5cBclF0kpCrMJ9k7xams9YW8MRs1EyozJZct50DNhsAYEzw3fDhVaVT0xmq1UE /r3QvuQiJPOSMEFQfbAhzAvqCbCJ1vIWl9rAIJK/nopWFLVL3Zr2SThdfizZxx7oo2Z5 6ijw== X-Gm-Message-State: AGRZ1gJbQGEVSzYpYeB39IzM1pxIezCG0Xg/IJ9bLhbAd/ZzUHLHFltB g+wcTyV4haPDqhWBMSEiOWaKoQ== X-Google-Smtp-Source: AJdET5dxiNozwBzE8xGf4Wfx+GgIdBkafQgF7rhrQSqStOEiVgqWI00de4qC41PL68yFC/tWW3INXA== X-Received: by 2002:a17:902:f097:: with SMTP id go23mr14566114plb.328.1541239769647; Sat, 03 Nov 2018 03:09:29 -0700 (PDT) Received: from localhost.localdomain ([2405:204:6094:3f7a:ed0a:fb74:1220:defe]) by smtp.gmail.com with ESMTPSA id z79-v6sm28466823pfl.33.2018.11.03.03.09.23 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 03 Nov 2018 03:09:29 -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 01/10] drm/sun4i: sun6i_mipi_dsi: Compute burst mode loop N1 instruction delay Date: Sat, 3 Nov 2018 15:38:51 +0530 Message-Id: <20181103100900.30313-2-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 Loop N1 instruction delay for burst mode lcd panel are computed as per BSP code. Reference code is available in BSP (in drivers/video/sunxi/disp2/disp/de/lowlevel_sun50iw1/de_dsi.c) dsi_dev[sel]->dsi_inst_loop_num.bits.loop_n1= (panel->lcd_ht-panel->lcd_x)*(150)/(panel->lcd_dclk_freq*8) - 50; => (((mode->htotal - mode->hdisplay) * 150) / ((mode->clock / 1000) * 8)) - 50; So use the similar computation for loop N1 delay. Signed-off-by: Jagan Teki --- drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c index 86430efd9054..da152c21ec62 100644 --- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c +++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c @@ -394,7 +394,14 @@ static void sun6i_dsi_setup_burst(struct sun6i_dsi *dsi, static void sun6i_dsi_setup_inst_loop(struct sun6i_dsi *dsi, struct drm_display_mode *mode) { - u16 delay = 50 - 1; + struct mipi_dsi_device *device = dsi->device; + u16 delay; + + if (device->mode_flags == MIPI_DSI_MODE_VIDEO_BURST) + delay = (((mode->htotal - mode->hdisplay) * 150) / + ((mode->clock / 1000) * 8)) - 50; + else + delay = 50 - 1; regmap_write(dsi->regs, SUN6I_DSI_INST_LOOP_NUM_REG(0), SUN6I_DSI_INST_LOOP_NUM_N0(50 - 1) | -- 2.18.0.321.gffc6fa0e3