From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) (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 378D83E765A for ; Mon, 12 Oct 2026 21:23:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791840201; cv=none; b=LgmqakBTn5ZcXmx2yjuq3lcN9/8GfF/FD+jNuCCJ7V9V3tu1ZByBxcef3LuUMA9qFYegKUGDg97JdA9Xu0W9RUaUePO9ErzZsGrXQrB9Y4hrBkZ3j58Y3eAljOxYqb5uBH/6yO7jGT1dS5O/yKZAGRB4R7J3YXHo2lRoZmr90GE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791840201; c=relaxed/simple; bh=oLikO/2NwksavMgF+ssjnX+vc49uxtEzkjRqIjITTdk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=S2Vt8tNjo1rxmQsOMc9xoXZA+3aeTsuzfSQw/cJzN5+KFu59J2DSOqZ3hkCyzo82nzafs25A3t1qgq7TR8MYpzQnnkhpaAkDYE9usRaRLQKF4IVtW4dnYc//pNqvOJeFtous9XOaaPIJ8IANiSG6pgS6J4TkMMryXiZcHsjL6ag= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Ahce+UEt; arc=none smtp.client-ip=192.198.163.13 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Ahce+UEt" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1791840200; x=1823376200; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=oLikO/2NwksavMgF+ssjnX+vc49uxtEzkjRqIjITTdk=; b=Ahce+UEtPo09YWM6navV2SNlcseybzPRO8VHRkJ3wVLGQtQlp7MI5j+y HbMPDw7grUc2kcfBemYd1XfAy1l/2/TSXexwTsW6PYaNO8UW9ya7mz0rT krqiRlCrUtyACyjiDk2nnyR+iWbZGfstUDIB5F55yO+Nd0TtJ9TC/PoYG nrsb1BPXQVRn5lCmGK4KJGZy2vFZwQO/BPM5jJC/PcI3tqB2RUytqUmLj PwkOy+TlhFfFf/EKDBxp2z5lkRp0CM1h7oBuav4hSIge/vFqjWY58+8o+ 5YEQYku2Ns9BTltU4cITWnVDQd/0R4EDXBRH3uHg3iTyRjkX1Ec56Sugh g==; X-CSE-ConnectionGUID: aIahk4MwTUatDpe2yIKsVQ== X-CSE-MsgGUID: WyGzOVBGQciJZDBVkMpEKw== X-IronPort-AV: E=McAfee;i="6800,10657,11933"; a="552669" X-IronPort-AV: E=Sophos;i="6.27,154,1787036400"; d="scan'208";a="552669" Received: from fmviesa013.fm.intel.com ([10.60.135.153]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2026 14:23:19 -0700 X-CSE-ConnectionGUID: aPERsKGTQLeMJaNmcYkG4g== X-CSE-MsgGUID: 1GXTOmO0RfqKSCXLLBZIPA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,154,1787036400"; d="scan'208";a="2749066" Received: from mkosciow-mobl1.ger.corp.intel.com (HELO kekkonen.fi.intel.com) ([10.245.245.35]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2026 14:23:18 -0700 Received: from kekkonen.localdomain (localhost [IPv6:::1]) by kekkonen.fi.intel.com (Postfix) with SMTP id 6FFF5121BA6; Tue, 13 Oct 2026 00:23:21 +0300 (EEST) Date: Tue, 13 Oct 2026 00:23:21 +0300 Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo From: Sakari Ailus To: Antti Laakso Cc: linux-media@vger.kernel.org, miguel.vadillo@intel.com, mehdi.djait@linux.intel.com Subject: Re: [PATCH 2/2] media: cvs: Remove runtime PM support Message-ID: References: <347b1ce25fd4d3197dbe47db2b23b6d0535b0bae.1791831649.git.antti.laakso@linux.intel.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <347b1ce25fd4d3197dbe47db2b23b6d0535b0bae.1791831649.git.antti.laakso@linux.intel.com> Moi, On Mon, Oct 12, 2026 at 10:25:25PM +0300, Antti Laakso wrote: > The CSI link is handed to the host on stream enable and back to the > CVS on stream disable. The runtime PM is doing the same, and is now > unnecessary. Remove runtime PM. The sensor driver may access sensor's registers when the device is powered on, e.g. for setting controls when streaming is disabled. Not every driver does that but that's why the Runtime PM flags are there. -- Terveisin, Sakari Ailus