From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:59648 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751635AbdJIM1O (ORCPT ); Mon, 9 Oct 2017 08:27:14 -0400 Subject: Patch "iio: trigger: stm32-timer: fix a corner case to write preset" has been added to the 4.13-stable tree To: fabrice.gasnier@st.com, Jonathan.Cameron@huawei.com, gregkh@linuxfoundation.org Cc: , From: Date: Mon, 09 Oct 2017 14:27:10 +0200 Message-ID: <150755203056127@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: trigger: stm32-timer: fix a corner case to write preset to the 4.13-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-trigger-stm32-timer-fix-a-corner-case-to-write-preset.patch and it can be found in the queue-4.13 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From b7a9776c1f9443326632486fcbd82dca82f8511e Mon Sep 17 00:00:00 2001 From: Fabrice Gasnier Date: Mon, 18 Sep 2017 12:05:31 +0200 Subject: iio: trigger: stm32-timer: fix a corner case to write preset From: Fabrice Gasnier commit b7a9776c1f9443326632486fcbd82dca82f8511e upstream. Balance timer start routine that sets ARPE: clear it in stop routine. This fixes a corner case, when timer is used successively as trigger (with sampling_frequency start/stop routines), then as a counter (with preset). Fixes: 93fbe91b5521 ("iio: Add STM32 timer trigger driver") Signed-off-by: Fabrice Gasnier Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/trigger/stm32-timer-trigger.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/iio/trigger/stm32-timer-trigger.c +++ b/drivers/iio/trigger/stm32-timer-trigger.c @@ -138,6 +138,7 @@ static void stm32_timer_stop(struct stm3 clk_disable(priv->clk); /* Stop timer */ + regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_ARPE, 0); regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_CEN, 0); regmap_write(priv->regmap, TIM_PSC, 0); regmap_write(priv->regmap, TIM_ARR, 0); Patches currently in stable-queue which might be from fabrice.gasnier@st.com are queue-4.13/iio-adc-stm32-fix-bad-error-check-on-max_channels.patch queue-4.13/iio-trigger-stm32-timer-preset-shouldn-t-be-buffered.patch queue-4.13/iio-trigger-stm32-timer-fix-a-corner-case-to-write-preset.patch