From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:50254 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755967AbcBXDoU (ORCPT ); Tue, 23 Feb 2016 22:44:20 -0500 Subject: Patch "iio: light: acpi-als: Report data as processed" has been added to the 4.4-stable tree To: gabriele.mzt@gmail.com, gregkh@linuxfoundation.org, jic23@kernel.org Cc: , From: Date: Tue, 23 Feb 2016 19:24:26 -0800 Message-ID: <1456284266250140@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled iio: light: acpi-als: Report data as processed to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: iio-light-acpi-als-report-data-as-processed.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From fa34e6dd44d7c02c8a8468ce4a52a7506f907bef Mon Sep 17 00:00:00 2001 From: Gabriele Mazzotta Date: Tue, 12 Jan 2016 16:21:39 +0100 Subject: iio: light: acpi-als: Report data as processed From: Gabriele Mazzotta commit fa34e6dd44d7c02c8a8468ce4a52a7506f907bef upstream. As per the ACPI specification (Revision 5.0) [1], the data coming from the sensor represent the ambient light illuminance reading expressed in lux. So use IIO_CHAN_INFO_PROCESSED to signify that the data are pre-processed. However, to keep backward ABI compatibility, the IIO_CHAN_INFO_RAW bit is not removed. [1] http://www.acpi.info/DOWNLOADS/ACPIspec50.pdf This issue has also been responsible for at least one userspace bug report hence marking what is a small semantic fix really for stable. [2] https://github.com/hadess/iio-sensor-proxy/issues/46 Signed-off-by: Gabriele Mazzotta Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/light/acpi-als.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) --- a/drivers/iio/light/acpi-als.c +++ b/drivers/iio/light/acpi-als.c @@ -54,7 +54,9 @@ static const struct iio_chan_spec acpi_a .realbits = 32, .storagebits = 32, }, - .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + /* _RAW is here for backward ABI compatibility */ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_PROCESSED), }, }; @@ -152,7 +154,7 @@ static int acpi_als_read_raw(struct iio_ s32 temp_val; int ret; - if (mask != IIO_CHAN_INFO_RAW) + if ((mask != IIO_CHAN_INFO_PROCESSED) && (mask != IIO_CHAN_INFO_RAW)) return -EINVAL; /* we support only illumination (_ALI) so far. */ Patches currently in stable-queue which might be from gabriele.mzt@gmail.com are queue-4.4/iio-light-acpi-als-report-data-as-processed.patch