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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 860B2C433EF for ; Tue, 29 Mar 2022 01:55:46 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CA4F210E19C; Tue, 29 Mar 2022 01:55:45 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id D151610E19C for ; Tue, 29 Mar 2022 01:55:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1648518944; x=1680054944; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=hbjvEAb+w4JWMW/dGinhrbIpob3XHNtn25Pso40+nP0=; b=MZMXqtu7sg9mshficZOOvqK+nYSSg9+5H8jU7g4HViQ7wHJX6fQ8hQsv Reuy/7cCoaVqhdTdpoTwB9EG+/BZBS7K6TnP1r7fRJ7jkhMmgm5ztAiU7 7ifEuP0GicV5FmVdGlBq5WDM6nvYCPO/RTjfYvruhQ31GbEvCgAcXILT+ Zhzh4FA93+Kq+zkaj1az9hrzcZ1ZHnFLLPd9DParrg3HP1gC+no3rHDwU +H8nDhAJV1TojPBsLi1cQd3CPXSGCL7OJmOp+nizMAqMrYDOzoxFMHnAl vl8UqXFoedlO7YXByAGHA1Yru6+q5jImDYhy28C7/gUuT2Wtt6AOuEl/M w==; X-IronPort-AV: E=McAfee;i="6200,9189,10300"; a="284034301" X-IronPort-AV: E=Sophos;i="5.90,219,1643702400"; d="scan'208";a="284034301" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Mar 2022 18:55:44 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,219,1643702400"; d="scan'208";a="604450928" Received: from lkp-server02.sh.intel.com (HELO 89b41b6ae01c) ([10.239.97.151]) by fmsmga008.fm.intel.com with ESMTP; 28 Mar 2022 18:55:42 -0700 Received: from kbuild by 89b41b6ae01c with local (Exim 4.92) (envelope-from ) id 1nZ15B-0002VV-DM; Tue, 29 Mar 2022 01:55:41 +0000 Date: Tue, 29 Mar 2022 09:54:57 +0800 From: kernel test robot To: Marek Vasut , dri-devel@lists.freedesktop.org Subject: Re: [PATCH v4 10/11] drm/bridge: tc358767: Split tc_set_video_mode() into common and (e)DP part Message-ID: <202203290927.vwyJHoKX-lkp@intel.com> References: <20220328214324.252472-11-marex@denx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220328214324.252472-11-marex@denx.de> User-Agent: Mutt/1.10.1 (2018-07-13) X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marek Vasut , kbuild-all@lists.01.org, Jonas Karlman , Neil Armstrong , Laurent Pinchart , Sam Ravnborg , Maxime Ripard Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hi Marek, I love your patch! Perhaps something to improve: [auto build test WARNING on drm/drm-next] [also build test WARNING on drm-intel/for-linux-next drm-tip/drm-tip drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next v5.17 next-20220328] [cannot apply to airlied/drm-next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/intel-lab-lkp/linux/commits/Marek-Vasut/drm-bridge-tc358767-Add-DSI-to-DPI-mode-support/20220329-054627 base: git://anongit.freedesktop.org/drm/drm drm-next config: xtensa-allyesconfig (https://download.01.org/0day-ci/archive/20220329/202203290927.vwyJHoKX-lkp@intel.com/config) compiler: xtensa-linux-gcc (GCC) 11.2.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/294c331d772539772ae87613ae1990860bbbc6ff git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Marek-Vasut/drm-bridge-tc358767-Add-DSI-to-DPI-mode-support/20220329-054627 git checkout 294c331d772539772ae87613ae1990860bbbc6ff # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=xtensa SHELL=/bin/bash drivers/gpu/drm/bridge/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): drivers/gpu/drm/bridge/tc358767.c: In function 'tc_set_common_video_mode': >> drivers/gpu/drm/bridge/tc358767.c:741:13: warning: variable 'max_tu_symbol' set but not used [-Wunused-but-set-variable] 741 | int max_tu_symbol; | ^~~~~~~~~~~~~ vim +/max_tu_symbol +741 drivers/gpu/drm/bridge/tc358767.c 7caff0fc4296eba Andrey Gusakov 2016-07-13 736 294c331d7725397 Marek Vasut 2022-03-28 737 static int tc_set_common_video_mode(struct tc_data *tc, 63f8f3badf799c8 Laurent Pinchart 2018-04-06 738 const struct drm_display_mode *mode) 7caff0fc4296eba Andrey Gusakov 2016-07-13 739 { 7caff0fc4296eba Andrey Gusakov 2016-07-13 740 int ret; 7caff0fc4296eba Andrey Gusakov 2016-07-13 @741 int max_tu_symbol; 7caff0fc4296eba Andrey Gusakov 2016-07-13 742 7caff0fc4296eba Andrey Gusakov 2016-07-13 743 int left_margin = mode->htotal - mode->hsync_end; 7caff0fc4296eba Andrey Gusakov 2016-07-13 744 int right_margin = mode->hsync_start - mode->hdisplay; 7caff0fc4296eba Andrey Gusakov 2016-07-13 745 int hsync_len = mode->hsync_end - mode->hsync_start; 7caff0fc4296eba Andrey Gusakov 2016-07-13 746 int upper_margin = mode->vtotal - mode->vsync_end; 7caff0fc4296eba Andrey Gusakov 2016-07-13 747 int lower_margin = mode->vsync_start - mode->vdisplay; 7caff0fc4296eba Andrey Gusakov 2016-07-13 748 int vsync_len = mode->vsync_end - mode->vsync_start; fd70c7755bf0172 Tomi Valkeinen 2019-09-24 749 u32 bits_per_pixel = 24; fd70c7755bf0172 Tomi Valkeinen 2019-09-24 750 u32 in_bw, out_bw; 7caff0fc4296eba Andrey Gusakov 2016-07-13 751 66d1c3b94d5d59e Andrey Gusakov 2017-11-07 752 /* 66d1c3b94d5d59e Andrey Gusakov 2017-11-07 753 * Recommended maximum number of symbols transferred in a transfer unit: 66d1c3b94d5d59e Andrey Gusakov 2017-11-07 754 * DIV_ROUND_UP((input active video bandwidth in bytes) * tu_size, 66d1c3b94d5d59e Andrey Gusakov 2017-11-07 755 * (output active video bandwidth in bytes)) 66d1c3b94d5d59e Andrey Gusakov 2017-11-07 756 * Must be less than tu_size. 66d1c3b94d5d59e Andrey Gusakov 2017-11-07 757 */ fd70c7755bf0172 Tomi Valkeinen 2019-09-24 758 fd70c7755bf0172 Tomi Valkeinen 2019-09-24 759 in_bw = mode->clock * bits_per_pixel / 8; e7dc8d40eea400d Thierry Reding 2019-10-21 760 out_bw = tc->link.num_lanes * tc->link.rate; fd70c7755bf0172 Tomi Valkeinen 2019-09-24 761 max_tu_symbol = DIV_ROUND_UP(in_bw * TU_SIZE_RECOMMENDED, out_bw); 66d1c3b94d5d59e Andrey Gusakov 2017-11-07 762 7caff0fc4296eba Andrey Gusakov 2016-07-13 763 dev_dbg(tc->dev, "set mode %dx%d\n", 7caff0fc4296eba Andrey Gusakov 2016-07-13 764 mode->hdisplay, mode->vdisplay); 7caff0fc4296eba Andrey Gusakov 2016-07-13 765 dev_dbg(tc->dev, "H margin %d,%d sync %d\n", 7caff0fc4296eba Andrey Gusakov 2016-07-13 766 left_margin, right_margin, hsync_len); 7caff0fc4296eba Andrey Gusakov 2016-07-13 767 dev_dbg(tc->dev, "V margin %d,%d sync %d\n", 7caff0fc4296eba Andrey Gusakov 2016-07-13 768 upper_margin, lower_margin, vsync_len); 7caff0fc4296eba Andrey Gusakov 2016-07-13 769 dev_dbg(tc->dev, "total: %dx%d\n", mode->htotal, mode->vtotal); 7caff0fc4296eba Andrey Gusakov 2016-07-13 770 7caff0fc4296eba Andrey Gusakov 2016-07-13 771 66d1c3b94d5d59e Andrey Gusakov 2017-11-07 772 /* 66d1c3b94d5d59e Andrey Gusakov 2017-11-07 773 * LCD Ctl Frame Size 66d1c3b94d5d59e Andrey Gusakov 2017-11-07 774 * datasheet is not clear of vsdelay in case of DPI 66d1c3b94d5d59e Andrey Gusakov 2017-11-07 775 * assume we do not need any delay when DPI is a source of 66d1c3b94d5d59e Andrey Gusakov 2017-11-07 776 * sync signals 66d1c3b94d5d59e Andrey Gusakov 2017-11-07 777 */ 6d0c38315915d49 Andrey Smirnov 2019-06-18 778 ret = regmap_write(tc->regmap, VPCTRL0, 3f072c304c0a7e1 Andrey Smirnov 2019-06-18 779 FIELD_PREP(VSDELAY, 0) | 7caff0fc4296eba Andrey Gusakov 2016-07-13 780 OPXLFMT_RGB888 | FRMSYNC_DISABLED | MSF_DISABLED); 6d0c38315915d49 Andrey Smirnov 2019-06-18 781 if (ret) 6d0c38315915d49 Andrey Smirnov 2019-06-18 782 return ret; 6d0c38315915d49 Andrey Smirnov 2019-06-18 783 6d0c38315915d49 Andrey Smirnov 2019-06-18 784 ret = regmap_write(tc->regmap, HTIM01, 3f072c304c0a7e1 Andrey Smirnov 2019-06-18 785 FIELD_PREP(HBPR, ALIGN(left_margin, 2)) | 3f072c304c0a7e1 Andrey Smirnov 2019-06-18 786 FIELD_PREP(HPW, ALIGN(hsync_len, 2))); 6d0c38315915d49 Andrey Smirnov 2019-06-18 787 if (ret) 6d0c38315915d49 Andrey Smirnov 2019-06-18 788 return ret; 6d0c38315915d49 Andrey Smirnov 2019-06-18 789 6d0c38315915d49 Andrey Smirnov 2019-06-18 790 ret = regmap_write(tc->regmap, HTIM02, 3f072c304c0a7e1 Andrey Smirnov 2019-06-18 791 FIELD_PREP(HDISPR, ALIGN(mode->hdisplay, 2)) | 3f072c304c0a7e1 Andrey Smirnov 2019-06-18 792 FIELD_PREP(HFPR, ALIGN(right_margin, 2))); 6d0c38315915d49 Andrey Smirnov 2019-06-18 793 if (ret) 6d0c38315915d49 Andrey Smirnov 2019-06-18 794 return ret; 6d0c38315915d49 Andrey Smirnov 2019-06-18 795 6d0c38315915d49 Andrey Smirnov 2019-06-18 796 ret = regmap_write(tc->regmap, VTIM01, 3f072c304c0a7e1 Andrey Smirnov 2019-06-18 797 FIELD_PREP(VBPR, upper_margin) | 3f072c304c0a7e1 Andrey Smirnov 2019-06-18 798 FIELD_PREP(VSPR, vsync_len)); 6d0c38315915d49 Andrey Smirnov 2019-06-18 799 if (ret) 6d0c38315915d49 Andrey Smirnov 2019-06-18 800 return ret; 6d0c38315915d49 Andrey Smirnov 2019-06-18 801 6d0c38315915d49 Andrey Smirnov 2019-06-18 802 ret = regmap_write(tc->regmap, VTIM02, 3f072c304c0a7e1 Andrey Smirnov 2019-06-18 803 FIELD_PREP(VFPR, lower_margin) | 3f072c304c0a7e1 Andrey Smirnov 2019-06-18 804 FIELD_PREP(VDISPR, mode->vdisplay)); 6d0c38315915d49 Andrey Smirnov 2019-06-18 805 if (ret) 6d0c38315915d49 Andrey Smirnov 2019-06-18 806 return ret; 6d0c38315915d49 Andrey Smirnov 2019-06-18 807 6d0c38315915d49 Andrey Smirnov 2019-06-18 808 ret = regmap_write(tc->regmap, VFUEN0, VFUEN); /* update settings */ 6d0c38315915d49 Andrey Smirnov 2019-06-18 809 if (ret) 6d0c38315915d49 Andrey Smirnov 2019-06-18 810 return ret; 7caff0fc4296eba Andrey Gusakov 2016-07-13 811 7caff0fc4296eba Andrey Gusakov 2016-07-13 812 /* Test pattern settings */ 6d0c38315915d49 Andrey Smirnov 2019-06-18 813 ret = regmap_write(tc->regmap, TSTCTL, 3f072c304c0a7e1 Andrey Smirnov 2019-06-18 814 FIELD_PREP(COLOR_R, 120) | 3f072c304c0a7e1 Andrey Smirnov 2019-06-18 815 FIELD_PREP(COLOR_G, 20) | 3f072c304c0a7e1 Andrey Smirnov 2019-06-18 816 FIELD_PREP(COLOR_B, 99) | 3f072c304c0a7e1 Andrey Smirnov 2019-06-18 817 ENI2CFILTER | 3f072c304c0a7e1 Andrey Smirnov 2019-06-18 818 FIELD_PREP(COLOR_BAR_MODE, COLOR_BAR_MODE_BARS)); 294c331d7725397 Marek Vasut 2022-03-28 819 6d0c38315915d49 Andrey Smirnov 2019-06-18 820 return ret; 294c331d7725397 Marek Vasut 2022-03-28 821 } 294c331d7725397 Marek Vasut 2022-03-28 822 -- 0-DAY CI Kernel Test Service https://01.org/lkp