From patchwork Thu Sep 12 08:56:29 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yannick FERTRE X-Patchwork-Id: 11142593 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 44A081599 for ; Thu, 12 Sep 2019 08:57:04 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 2CCC32084F for ; Thu, 12 Sep 2019 08:57:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2CCC32084F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=st.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id F407C6EC77; Thu, 12 Sep 2019 08:57:01 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [62.209.51.94]) by gabe.freedesktop.org (Postfix) with ESMTPS id 452A46EC77 for ; Thu, 12 Sep 2019 08:57:00 +0000 (UTC) Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id x8C8u6xt002413; Thu, 12 Sep 2019 10:56:57 +0200 Received: from beta.dmz-ap.st.com (beta.dmz-ap.st.com [138.198.100.35]) by mx07-00178001.pphosted.com with ESMTP id 2uv2awg4hb-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Thu, 12 Sep 2019 10:56:57 +0200 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id C5C2A53; Thu, 12 Sep 2019 08:56:46 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas24.st.com [10.75.90.94]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id D1BA12B841B; Thu, 12 Sep 2019 10:56:45 +0200 (CEST) Received: from SAFEX1HUBCAS21.st.com (10.75.90.45) by Safex1hubcas24.st.com (10.75.90.94) with Microsoft SMTP Server (TLS) id 14.3.439.0; Thu, 12 Sep 2019 10:56:45 +0200 Received: from localhost (10.201.23.97) by Webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.439.0; Thu, 12 Sep 2019 10:56:45 +0200 From: =?utf-8?q?Yannick_Fertr=C3=A9?= To: Yannick Fertre , Philippe Cornu , Benjamin Gaignard , Vincent Abriou , David Airlie , Daniel Vetter , Maxime Coquelin , Alexandre Torgue , , , , Subject: [PATCH] drm/stm: dsi: higher pll out only in video burst mode Date: Thu, 12 Sep 2019 10:56:29 +0200 Message-ID: <1568278589-20400-1-git-send-email-yannick.fertre@st.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [10.201.23.97] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.70,1.0.8 definitions=2019-09-12_04:2019-09-11,2019-09-12 signatures=0 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : subject : date : message-id : mime-version : content-type; s=STMicroelectronics; bh=hC/Ep7sILGc8IpTJGW+E2kTEYIt84RL/dPIXG9oXwF0=; b=DxjeenHlDwZIXSKz4Z4Cj9H1cpx4vn5MQKPwyPNsHrltd/aGq+o1yO8tGnckqJRC1rQT TTPOBEn7Xm3/pY0nTQv62iCWyOKOPdXagbxmaGYUTGLFXVJRr9J745Yf0T8YzhMgvxIj Egqir2G8pxnZajnCAKontJPhtgQ3bODtPj0En19MSxqkZnR62OROnca6RjLlA+wST1Kv 0+UXJgXGPswnPexcPT76AarTnogHSI0AsJoVVCIZICvYkoaPww4Pbdl2oNvga7B66J5P 5HaDRbiCk1h77MaWfvXvtIl9nPZnpZLMtIg/C1rvoSeOq5j8JYibDjDUguNOPx5DkzdF YA== X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" In order to better support video non-burst modes, the +20% on pll out is added only in burst mode. Signed-off-by: Philippe Cornu Reviewed-by: Yannick FERTRE --- drivers/gpu/drm/stm/dw_mipi_dsi-stm.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c index a03a642..514efef 100644 --- a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c +++ b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c @@ -260,8 +260,11 @@ dw_mipi_dsi_get_lane_mbps(void *priv_data, const struct drm_display_mode *mode, /* Compute requested pll out */ bpp = mipi_dsi_pixel_format_to_bpp(format); pll_out_khz = mode->clock * bpp / lanes; + /* Add 20% to pll out to be higher than pixel bw (burst mode only) */ - pll_out_khz = (pll_out_khz * 12) / 10; + if (mode_flags & MIPI_DSI_MODE_VIDEO_BURST) + pll_out_khz = (pll_out_khz * 12) / 10; + if (pll_out_khz > dsi->lane_max_kbps) { pll_out_khz = dsi->lane_max_kbps; DRM_WARN("Warning max phy mbps is used\n");