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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,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 BEA45C5CFFE for ; Mon, 10 Dec 2018 16:19:46 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6B68D20672 for ; Mon, 10 Dec 2018 16:19:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="sxGSs8Zj"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.b="j64vC5c9" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6B68D20672 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-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=upGZshDApW0+VBOArMcSlVuE8ESYopUCDshVAX5rikU=; b=sxGSs8ZjQMXNC+ dngi1G8Z1/Ci//+QYf7wt9fOyOZeSK5xXlB/CgLvQ+tEKvvI5/Ttl1n1r2x92DEa6mTJcKheCJjts mZM6YoWmeC/y1j4HxipJlFHKtXrxm6BjdOeW7UE/jV9UpJkKltFibreyf9uv49Wqxcnk2vDRhc+Sl STdKtBvPHcgWK6ULnbwEbOMuxp95ZO7Fu4Ya7SBjYK21SOAUPd9uIdYkPma0WetLgaggMagZ/EZEh i8lApg7FSR3G3jQYKQAXfFv46zpIVUNkZnHXXm8/DmaQgyVNgdGVHw+UnkvvnffFZzbeLMYfkoMR1 ZKVgiku40aE1twixn5mA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gWOHT-00015p-Ct; Mon, 10 Dec 2018 16:19:39 +0000 Received: from mail-wm1-x342.google.com ([2a00:1450:4864:20::342]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gWOFw-0007gn-Ag for linux-arm-kernel@lists.infradead.org; Mon, 10 Dec 2018 16:18:11 +0000 Received: by mail-wm1-x342.google.com with SMTP id m22so11927842wml.3 for ; Mon, 10 Dec 2018 08:18:02 -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=7B7/bFXR+1ggUu89xO8Gq2xSzsCKM6R16uBfSc/xhAo=; b=j64vC5c9Sc06k6W+B4eLBoq2kgCKRSayqR6+DwNYYJNjxUTlZd4q2LFlL8wdHQbIdS GN8bfAAT6V0Z6CvtFGRSbP8FBcFaEPZFXe3U3iFXpeMidy4Bs/9QNzou1htKl46xI/hd emjQS/y7d9brelH5z5Gw0ZKvG8G2md8LcP4LE= 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=7B7/bFXR+1ggUu89xO8Gq2xSzsCKM6R16uBfSc/xhAo=; b=PaECxUOmiFcrNk7zd6OcCpPVuMS+WH6FM51twfOBWxoJdKeF0L8J6aD9EiyPZtCDmz daUQI5+qN9LCRhFN3fBIcvl2zFjH9QXpa/Tx0KbkUaNGGDaSIxXlgBwXToYSUPmM/7lE njirEcJn2uKZhrQnIM1qqWQR6Cc1j49Vc/0MxEK+HZcFib5Nt8bVM3TQ5jaxjtwXQvJ1 vgdVj8/uP3UNWu6B2tlQUa1fmUUtoeAvXRw+3drTfvEfRKiMhiYGZ7FL4bNZKeIEDqbf Sv2peW4Spcg0qZOXMT5Vkj+rB4mSPUzvMuO+o8gn+Rzq9bikmSlln+PZ8Fc4UEcnhQfZ iZoQ== X-Gm-Message-State: AA+aEWZO99Q9nKGGisB8faBh8j6qZH3qVi+km1jYE4dfrhkmBSVINpHh Lm8I7Is/qb//0ECjv0L4avRlgg== X-Google-Smtp-Source: AFSGD/V6DS87dkTsDhODWaxBYnTVebM8xXCu4fOadguVykyXB9nHb9tTYImyri0myo8lgB3AF4v7zw== X-Received: by 2002:a1c:d7d3:: with SMTP id o202mr11936226wmg.135.1544458681432; Mon, 10 Dec 2018 08:18:01 -0800 (PST) Received: from localhost.localdomain (ip-162-59.sn-213-198.clouditalia.com. [213.198.162.59]) by smtp.gmail.com with ESMTPSA id b13sm8397503wrn.28.2018.12.10.08.17.59 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 10 Dec 2018 08:18:00 -0800 (PST) From: Jagan Teki To: Maxime Ripard , Chen-Yu Tsai , Michael Turquette , Stephen Boyd Subject: [PATCH v5 10/17] drm/sun4i: sun6i_mipi_dsi: Add DSI hblk packet overhead Date: Mon, 10 Dec 2018 21:47:22 +0530 Message-Id: <20181210161729.29720-11-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.18.0.321.gffc6fa0e3 In-Reply-To: <20181210161729.29720-1-jagan@amarulasolutions.com> References: <20181210161729.29720-1-jagan@amarulasolutions.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181210_081805_083183_7D55C2D8 X-CRM114-Status: GOOD ( 14.32 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sunxi , Jagan Teki , Michael Trimarchi , linux-amarula@amarulasolutions.com, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add 10 bytes packet overhead for hblk where blank is set using a blanking packet like (4 bytes + 4 bytes + payload + 2 bytes) This is according to BSP code from BPI-M64-bsp (from linux-sunxi/ drivers/video/sunxi/disp2/disp/de/lowlevel_sun50iw1/de_dsi.c) dsi_hblk = (ht-hspw)*dsi_pixel_bits[format]/8-(4+4+2); So, add 10 bytes packet overhead for DSI hblk. Tested on 2-lane, 4-lane MIPI-DSI LCD panels. 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 4c95b3384ed9..07eba9ec469b 100644 --- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c +++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c @@ -494,8 +494,13 @@ static void sun6i_dsi_setup_timings(struct sun6i_dsi *dsi, /* * hblk seems to be the line + porches length. + * The blank is set using a blanking packet (4 bytes + 4 bytes + + * payload + 2 bytes). So minimal size is 10 bytes */ - hblk = (mode->htotal - (mode->hsync_end - mode->hsync_start)) * Bpp; +#define HBLK_PACKET_OVERHEAD 10 + hblk = max((unsigned int)HBLK_PACKET_OVERHEAD, + (mode->htotal - (mode->hsync_end - mode->hsync_start)) * + Bpp - HBLK_PACKET_OVERHEAD); /* * And I'm not entirely sure what vblk is about. The driver in -- 2.18.0.321.gffc6fa0e3 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel