From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:51852 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752472AbcGYAaD (ORCPT ); Sun, 24 Jul 2016 20:30:03 -0400 Subject: Patch "iio:ad7266: Fix support for optional regulators" has been added to the 4.4-stable tree To: broonie@kernel.org, gregkh@linuxfoundation.org, jic23@kernel.org Cc: , From: Date: Sun, 24 Jul 2016 17:30:19 -0700 Message-ID: <146940661993249@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:ad7266: Fix support for optional regulators 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-ad7266-fix-support-for-optional-regulators.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 e5511c816e5ac4909bdd38e85ac344e2b9b8e984 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 20 Jun 2016 13:53:33 +0100 Subject: iio:ad7266: Fix support for optional regulators From: Mark Brown commit e5511c816e5ac4909bdd38e85ac344e2b9b8e984 upstream. The ad7266 driver attempts to support deciding between the use of internal and external power supplies by checking to see if an error is returned when requesting the regulator. This doesn't work with the current code since the driver uses a normal regulator_get() which is for non-optional supplies and so assumes that if a regulator is not provided by the platform then this is a bug in the platform integration and so substitutes a dummy regulator. Use regulator_get_optional() instead which indicates to the framework that the regulator may be absent and provides a dummy regulator instead. Signed-off-by: Mark Brown Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/adc/ad7266.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/iio/adc/ad7266.c +++ b/drivers/iio/adc/ad7266.c @@ -396,7 +396,7 @@ static int ad7266_probe(struct spi_devic st = iio_priv(indio_dev); - st->reg = devm_regulator_get(&spi->dev, "vref"); + st->reg = devm_regulator_get_optional(&spi->dev, "vref"); if (!IS_ERR(st->reg)) { ret = regulator_enable(st->reg); if (ret) Patches currently in stable-queue which might be from broonie@kernel.org are queue-4.4/iio-ad7266-fix-probe-deferral-for-vref.patch queue-4.4/iio-ad7266-fix-broken-regulator-error-handling.patch queue-4.4/iio-ad7266-fix-support-for-optional-regulators.patch