From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.steuer-voss.de ([85.183.69.95]:55098 "EHLO mail.steuer-voss.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752719AbeGCHDx (ORCPT ); Tue, 3 Jul 2018 03:03:53 -0400 Message-Id: From: Nikolaus Voss Date: Tue, 3 Jul 2018 08:34:20 +0200 Subject: [PATCH v2 0/2] IIO: st_sensors_i2c: improve device enumeration To: Jonathan Cameron , Hartmut Knaack , Lars-Peter Clausen , Peter Meerwald-Stadler , Lorenzo Bianconi , Linus Walleij , Xiongfeng Wang , Andy Shevchenko , nv@vosn.de Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Sender: linux-iio-owner@vger.kernel.org List-Id: linux-iio@vger.kernel.org When trying to instantiate a st_accel_i2c device from an ACPI based system, I ran into some problems: For my device, there is no ACPI match table entry, so rather than creating /allocating a new ACPI HID for the device, I wanted to use an existing DT table compatible entry via creating an ACPI_DT_NAMESPACE_HID /PRP0001 HID ACPI entry (see Documentation/acpi/enumeration.txt). This did not work because st_accel_i2c.c bails out if there is a ACPI node but no ACPI table match. Use device_get_match_data API to get the right driver data. acpi_device_get_match_data() currently doesn't return DT compatible matches. A separate patch is submitted to fix this. v2: - use device_get_match_data API as suggested by Andy Shevchenko - removed syncing DT/I2C table names as Jonathan Cameron pointed out this would be an ABI change - converting from probe() to probe_new() is moved into a separate patch (as suggested by Jonathan Cameron) Nikolaus Voss (2): IIO: st_accel_i2c.c: Simplify access to driver data IIO: st_accel_i2c.c: Use probe_new() instead of probe() drivers/iio/accel/st_accel_i2c.c | 26 ++++++++++---------------- 1 file changed, 10 insertions(+), 16 deletions(-) -- 2.17.1