From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EFDC51B87C9; Wed, 4 Dec 2024 12:49:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733316572; cv=none; b=q+cgMBbBmqLPyZ+f0Ss/lOHFKNh8IQlRdGu+AN6m4i0y/ffcHGcBREQr2pavj6IKW5WbLwJe2n1jbhRaRntaVURcLaTW2PaMnq7Kra/49SwzT1MxlM8am9qhY8NHwxa3MUp7HG3rSV21qgDN2egPsTwEXuLscalNPOn0Q+0dljc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733316572; c=relaxed/simple; bh=6RdyS6rQi6HSm5hdOEW2RdWv0FYXX5MAP73uG4z69M8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=iViOTtj18UnRYh86K3KejBtnZASlASJw4ftmcSQXgrxHrFAdZhM1MlmLgEQuL4L5H8WckpPC6HUWvfqp0EjLn6OFXSGTbABAdI8RCEnFp0qAzxKqJNEokaCJro7mj/s/htq83D9YaDNYmwn3tRmFWUp4gsHd/B8Uxeik/Em4ii8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=C8He2pH3; arc=none smtp.client-ip=192.198.163.9 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="C8He2pH3" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1733316571; x=1764852571; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=6RdyS6rQi6HSm5hdOEW2RdWv0FYXX5MAP73uG4z69M8=; b=C8He2pH3IsMl9/VmyiQQeKsDmvglEOV6U/4IVaDvi3hzIFW5rzoZwjfH py6S77rGlX+r4if0pdpougGLfTCXSjsZOHpjmUUah1tU5ewwDkoSOD4Un XgyKX+h9UN7CqtHmPL3lxrOWr20wLSd7ZAkUf21jz2IiglCW7E1PTlmxP RU4BwZ4AJBFSCor33OQslWIZZo/0PkJEE7i5LezE5ERBwhejbtw27ag/Z n/KT/fdg/hJXvpTs3dvsV8TrRf9m/EYAXneE5u0n7d/oMM0QJwAOFeoZW 26N5z9XfkaVOGW17A+LLgij03wzvgldb4LEu3I0Xzzpf6D9vOxp1UldId g==; X-CSE-ConnectionGUID: spUi5dL5TKaKaG3OGNwPTg== X-CSE-MsgGUID: vpW6SduWSTqiU6rKN8kj2A== X-IronPort-AV: E=McAfee;i="6700,10204,11276"; a="44244724" X-IronPort-AV: E=Sophos;i="6.12,207,1728975600"; d="scan'208";a="44244724" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Dec 2024 04:49:30 -0800 X-CSE-ConnectionGUID: rmifMeztTJu8VWydzNTOuA== X-CSE-MsgGUID: 0d0rjvzHS06nxW5aiZeqpA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,207,1728975600"; d="scan'208";a="94213756" Received: from lkp-server02.sh.intel.com (HELO 1f5a171d57e2) ([10.239.97.151]) by fmviesa009.fm.intel.com with ESMTP; 04 Dec 2024 04:49:25 -0800 Received: from kbuild by 1f5a171d57e2 with local (Exim 4.96) (envelope-from ) id 1tIooJ-00031v-1D; Wed, 04 Dec 2024 12:49:07 +0000 Date: Wed, 4 Dec 2024 20:48:23 +0800 From: kernel test robot To: Nikolaus Voss , Alexander Stein , Liu Ying , Luca Ceresoli , Fabio Estevam , Marek Vasut , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , David Airlie , Daniel Vetter , miquel.raynal@bootlin.com, nikolaus.voss@haag-streit.com Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] drm: bridge: fsl-ldb: fixup mode on freq mismatch Message-ID: <202412042024.4mJmO3sM-lkp@intel.com> References: <20241203191111.47B56F7@mail.steuer-voss.de> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241203191111.47B56F7@mail.steuer-voss.de> Hi Nikolaus, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip v6.13-rc1 next-20241203] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Nikolaus-Voss/drm-bridge-fsl-ldb-fixup-mode-on-freq-mismatch/20241204-115306 base: linus/master patch link: https://lore.kernel.org/r/20241203191111.47B56F7%40mail.steuer-voss.de patch subject: [PATCH v2] drm: bridge: fsl-ldb: fixup mode on freq mismatch config: arm-randconfig-003-20241204 (https://download.01.org/0day-ci/archive/20241204/202412042024.4mJmO3sM-lkp@intel.com/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241204/202412042024.4mJmO3sM-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202412042024.4mJmO3sM-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/bridge/fsl-ldb.c:125:30: warning: omitting the parameter name in a function definition is a C2x extension [-Wc2x-extensions] struct drm_bridge_state *, ^ drivers/gpu/drm/bridge/fsl-ldb.c:127:33: warning: omitting the parameter name in a function definition is a C2x extension [-Wc2x-extensions] struct drm_connector_state *) ^ 2 warnings generated. vim +125 drivers/gpu/drm/bridge/fsl-ldb.c 123 124 static int fsl_ldb_atomic_check(struct drm_bridge *bridge, > 125 struct drm_bridge_state *, 126 struct drm_crtc_state *crtc_state, 127 struct drm_connector_state *) 128 { 129 struct fsl_ldb *fsl_ldb = to_fsl_ldb(bridge); 130 const struct drm_display_mode *mode = &crtc_state->mode; 131 unsigned long requested_link_freq = 132 fsl_ldb_link_frequency(fsl_ldb, mode->clock); 133 unsigned long freq = clk_round_rate(fsl_ldb->clk, requested_link_freq); 134 135 if (freq != requested_link_freq) { 136 /* 137 * this will lead to flicker and incomplete lines on 138 * the attached display, adjust the CRTC clock 139 * accordingly. 140 */ 141 struct drm_display_mode *adjusted_mode = &crtc_state->adjusted_mode; 142 int pclk = freq / fsl_ldb_link_frequency(fsl_ldb, 1); 143 144 if (adjusted_mode->clock != pclk) { 145 dev_warn(fsl_ldb->dev, "Adjusted pixel clk to match LDB clk (%d kHz -> %d kHz)!\n", 146 adjusted_mode->clock, pclk); 147 148 adjusted_mode->clock = pclk; 149 adjusted_mode->crtc_clock = pclk; 150 } 151 } 152 153 return 0; 154 } 155 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki