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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4BBABC05027 for ; Fri, 17 Feb 2023 11:39:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230197AbjBQLji (ORCPT ); Fri, 17 Feb 2023 06:39:38 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53488 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229975AbjBQLji (ORCPT ); Fri, 17 Feb 2023 06:39:38 -0500 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 588586537B for ; Fri, 17 Feb 2023 03:39:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1676633977; x=1708169977; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=Seski/4E4yrbwcDc2E9UxQVtRdX0m4sP/Hr9GVaRGg0=; b=cml8I2ZGuckmSnCZs9nQRlUzEAnSIOU74I1O8ZSBhilwesizAb1iX2mR Me3zmHTH/mXzFEXLHO9N0xFeACOCdTGvh0XAI0UQy4AKdv0YrYgsnVdAn ZXp/tlzaeyhBwVi7zQJjo3pXObbg9kkvSHnw3PBImzfb/xH8ONTqP9Au3 CnvFYFxPy8UR8P9Y1WLlmDEGjwianmMQF6L7tSYf5h0Z7BLnbnbsaswlO edaMRh8nkN0ne3GijRWpk8T2phFR70MzisQzwuduGbXSq5F/jLjx/KFcr ijhjYIQjC9tLB4K7F6Q30Nb+57VZH25rQ1rRj6Ayw5CWcDrrpxnkhln6x Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10623"; a="311600708" X-IronPort-AV: E=Sophos;i="5.97,304,1669104000"; d="scan'208";a="311600708" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Feb 2023 03:39:36 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10623"; a="672556216" X-IronPort-AV: E=Sophos;i="5.97,304,1669104000"; d="scan'208";a="672556216" Received: from turnipsi.fi.intel.com (HELO kekkonen.fi.intel.com) ([10.237.72.44]) by fmsmga007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Feb 2023 03:39:35 -0800 Received: from kekkonen.localdomain (localhost [IPv6:::1]) by kekkonen.fi.intel.com (Postfix) with SMTP id 4575911FC11; Fri, 17 Feb 2023 13:39:32 +0200 (EET) Date: Fri, 17 Feb 2023 13:39:32 +0200 From: Sakari Ailus To: Laurent Pinchart Cc: linux-media@vger.kernel.org, frieder.schrempf@kontron.de, Tim Harvey , linux-arm-kernel@lists.infradead.org, Dave Stevenson , Javier Martinez Canillas Subject: Re: [RFC 1/1] v4l: async: Add some debug prints Message-ID: References: <049f2fea-1725-74d9-d20d-fc4f7506d504@kontron.de> <20230209221634.35239-1-sakari.ailus@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Hi Laurent, On Fri, Feb 17, 2023 at 01:11:05AM +0200, Laurent Pinchart wrote: > Hi Sakari, > > On Thu, Feb 16, 2023 at 10:12:22AM +0200, Sakari Ailus wrote: > > On Wed, Feb 15, 2023 at 09:23:05PM +0200, Laurent Pinchart wrote: > > > On Wed, Feb 15, 2023 at 02:00:46PM +0200, Sakari Ailus wrote: > > > > On Fri, Feb 10, 2023 at 12:34:01AM +0200, Laurent Pinchart wrote: > > > > > Thank you for the patch. > > > > > > > > Thanks for the review! > > > > > > > > This was indeed hastily written, to help debugging a particular issue. But > > > > I hope it'll be useful for other purposes, too. V4L2 async is about to get > > > > more complicated soon. > > > > > > Could it get simpler instead ? :-) Maybe one day v4l2-async may cross > > > the threshold of how much pain I can bear, and I'll rewrite it... > > > > I wish it could, but often supporting complex needs is complicated. > > "Simplicated" is not even a proper word after all. Let's see. > > Don't try to lure me into rewriting it sooner than later ;-) This could be all avoided if drivers got all what they need during probe. It would require vast changes accross a large number of drivers and might never happen. Also this is related to not exposing access any hardware before all of it is available. -- Regards, Sakari Ailus