From patchwork Wed Nov 6 09:50:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wolfram Sang X-Patchwork-Id: 11231965 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 9C19A15AB for ; Thu, 7 Nov 2019 07:44:05 +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 8325621882 for ; Thu, 7 Nov 2019 07:44:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8325621882 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.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 E96486EEA8; Thu, 7 Nov 2019 07:43:42 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from pokefinder.org (sauhun.de [88.99.104.3]) by gabe.freedesktop.org (Postfix) with ESMTP id 103A06EC91 for ; Wed, 6 Nov 2019 09:50:35 +0000 (UTC) Received: from localhost (p54B33505.dip0.t-ipconnect.de [84.179.53.5]) by pokefinder.org (Postfix) with ESMTPSA id 65D0A2C053B; Wed, 6 Nov 2019 10:50:33 +0100 (CET) From: Wolfram Sang To: linux-i2c@vger.kernel.org Subject: [RFC PATCH 00/12] i2c: replace i2c_new_probed_device with an ERR_PTR variant Date: Wed, 6 Nov 2019 10:50:18 +0100 Message-Id: <20191106095033.25182-1-wsa+renesas@sang-engineering.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-Mailman-Approved-At: Thu, 07 Nov 2019 07:43:23 +0000 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: , Cc: linux-fbdev@vger.kernel.org, Wolfram Sang , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-input@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-media@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Wolfram Sang In the on-going mission to let i2c_new_* calls return an ERR_PTR instead of NULL, here is a series converting i2c_new_probed_device(). A new function called i2c_new_scanned_device() is introduced with the new retval, but for now, a compatibility helper is provided until all users are converted. The rest of the patches convert all current in-tree users. Note that these patches are RFC because I want feedback on the approach and hopefully collect acks on the driver conversions. If all goes well, I'll apply the first two patches for the next merge window. Then, once this dependency is upstream, I'll resend this series with all issues fixed and acks collected. Core changes tested on a Renesas Salvator-XS board (R-Car M3-N), driver patches build tested by me and buildbot. Wolfram Sang (12): i2c: replace i2c_new_probed_device with an ERR_PTR variant i2c: icy: convert to i2c_new_scanned_device macintosh: convert to i2c_new_scanned_device platform: chrome: convert to i2c_new_scanned_device video: fbdev: matrox: convert to i2c_new_scanned_device input: mouse: convert to i2c_new_scanned_device media: pci: cx23885: convert to i2c_new_scanned_device media: pci: cx88: convert to i2c_new_scanned_device media: pci: bt8xx: convert to i2c_new_scanned_device media: pci: cx18: convert to i2c_new_scanned_device media: pci: ivtv: convert to i2c_new_scanned_device media: v4l2-core: convert to i2c_new_scanned_device Documentation/i2c/instantiating-devices.rst | 10 ++++----- Documentation/i2c/writing-clients.rst | 8 +++---- drivers/i2c/busses/i2c-icy.c | 8 +++---- drivers/i2c/i2c-core-base.c | 25 ++++++++++++++++----- drivers/input/mouse/psmouse-smbus.c | 8 ++++--- drivers/macintosh/therm_windtunnel.c | 4 ++-- drivers/media/pci/bt8xx/bttv-input.c | 6 ++--- drivers/media/pci/cx18/cx18-i2c.c | 2 +- drivers/media/pci/cx23885/cx23885-i2c.c | 4 ++-- drivers/media/pci/cx88/cx88-input.c | 2 +- drivers/media/pci/ivtv/ivtv-i2c.c | 6 ++--- drivers/media/pci/ivtv/ivtv-i2c.h | 2 +- drivers/media/v4l2-core/v4l2-i2c.c | 10 ++++----- drivers/platform/chrome/chromeos_laptop.c | 18 ++++++++------- drivers/video/fbdev/matrox/i2c-matroxfb.c | 4 ++-- include/linux/i2c.h | 12 +++++++--- 16 files changed, 76 insertions(+), 53 deletions(-)