Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751914AbdHCRDO (ORCPT ); Thu, 3 Aug 2017 13:03:14 -0400 Received: from mail-yw0-f194.google.com ([209.85.161.194]:38051 "EHLO mail-yw0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751986AbdHCRB7 (ORCPT ); Thu, 3 Aug 2017 13:01:59 -0400 Date: Thu, 3 Aug 2017 12:01:54 -0500 From: Rob Herring To: Fabrice Gasnier Cc: jic23@kernel.org, linux@armlinux.org.uk, mark.rutland@arm.com, mcoquelin.stm32@gmail.com, alexandre.torgue@st.com, lars@metafoo.de, knaack.h@gmx.de, pmeerw@pmeerw.net, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 2/3] dt-bindings: iio: adc: stm32: add optional st,min-sample-time-nsecs Message-ID: <20170803170154.bizlx2dvdbwtgmoy@rob-hp-laptop> References: <1500912640-23927-1-git-send-email-fabrice.gasnier@st.com> <1500912640-23927-3-git-send-email-fabrice.gasnier@st.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1500912640-23927-3-git-send-email-fabrice.gasnier@st.com> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 719 Lines: 18 On Mon, Jul 24, 2017 at 06:10:39PM +0200, Fabrice Gasnier wrote: > STM32 ADC allows each channel to be sampled with a different sampling > time. There's an application note that deals with this: 'How to get > the best ADC accuracy in STM32...' It basically depends on analog input > signal electrical properties (depends on board). > > Add optional 'st,min-sample-time-nsecs' property so this can be tuned > in dt. > > Signed-off-by: Fabrice Gasnier > --- > Changes in v2: > - Use 'st,min-sample-time-nsecs' instead of 'min-sample-time'. > --- > Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt | 5 +++++ > 1 file changed, 5 insertions(+) Acked-by: Rob Herring