From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_2 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8E33C33CA9 for ; Mon, 13 Jan 2020 22:02:24 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 678592075B for ; Mon, 13 Jan 2020 22:02:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="LhCrEzol"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="pHT5bBh0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 678592075B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Ixnq7aqQ2np+3/rw2lTUHNGqMRzFuwnwahPVGkG3jxw=; b=LhCrEzolzb4o9j 823KM7YnQGqAcOjGM88xT/LJgfJBRNPa/JsZRQaQ+x8HocIhy2qAXbhAh+4VPGACnoYvI6jktBF4X t/NG19GiRwMH1b2XqWcsqJwAB2wByRmkuPl9tVDviDAgBKxtefpzCHEZqg+1O9cBNYzDjm+rYiI6r FI5q/TOeFzcduoh3hSbsL8BvudwLbiovTpr8V0Sqg0v7UfqWcWm9xPpS6v4xR3aJ0Dv67GaEHlqEu awjC3KEjYXcqADf3vVxQod0DQAiOoLTRKlfxxH1kJucz8PVNQfl+LO8fTe2RbOVY3Q6ifaZFDKmDV vdPdgUl9jSaaLJbvgfoA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ir7ms-0003NH-Bb; Mon, 13 Jan 2020 22:02:18 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1ir7mp-0003Mj-34 for linux-arm-kernel@lists.infradead.org; Mon, 13 Jan 2020 22:02:16 +0000 Received: from archlinux (cpc149474-cmbg20-2-0-cust94.5-4.cable.virginm.net [82.4.196.95]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D42022072B; Mon, 13 Jan 2020 22:02:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578952934; bh=OgKDay9p8f2ObZyGcicQ+gy/7tCHu46EYwzbBIFy4Bw=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=pHT5bBh0iez8IKcr+GlyuKn5q/SAP7pNTjWGjKMvkbXrd1UI/wSmspGEACN7yYH+I /1/yBtWWtpU2t/cc18f2m4bbAs+Isbe3BZKwPYV8SnxhrkdWXoRJX+Oftin0kAmLtO +Wkfw8ev1pXrvi9Or7YvB4Zb1BizyIiaKPqXo3EY= Date: Mon, 13 Jan 2020 22:02:08 +0000 From: Jonathan Cameron To: Olivier MOYSAN Subject: Re: [PATCH v2] iio: adc: stm32-dfsdm: adapt sampling rate to oversampling ratio Message-ID: <20200113220208.6471ba42@archlinux> In-Reply-To: <9b7e2161-1a31-8d69-52f9-ae9dedc902e3@st.com> References: <20191127131008.18896-1-olivier.moysan@st.com> <9b7e2161-1a31-8d69-52f9-ae9dedc902e3@st.com> X-Mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200113_140215_175410_11F4E7B2 X-CRM114-Status: GOOD ( 17.93 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "lars@metafoo.de" , Alexandre TORGUE , "linux-iio@vger.kernel.org" , "pmeerw@pmeerw.net" , "linux-kernel@vger.kernel.org" , "mcoquelin.stm32@gmail.com" , "knaack.h@gmx.de" , Fabrice GASNIER , "linux-stm32@st-md-mailman.stormreply.com" , "linux-arm-kernel@lists.infradead.org" , Benjamin GAIGNARD Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, 10 Jan 2020 10:06:13 +0000 Olivier MOYSAN wrote: > Hi Jonathan, all, > > Kind reminder on this patch. Thanks! Applied to the togreg branch of iio.git and pushed out of testing to give the build bots a brief period to poke at it. Sorry again for the delay Thanks, Jonathan > Regards > Olivier > > On 11/27/19 2:10 PM, Olivier Moysan wrote: > > Update sampling rate when oversampling ratio is changed > > through the IIO ABI. > > > > Signed-off-by: Olivier Moysan > > --- > > changes in version 2: > > - correct title > > --- > > drivers/iio/adc/stm32-dfsdm-adc.c | 32 ++++++++++++++++++------------- > > 1 file changed, 19 insertions(+), 13 deletions(-) > > > > diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c > > index 0339ecdd06bd..87a842507509 100644 > > --- a/drivers/iio/adc/stm32-dfsdm-adc.c > > +++ b/drivers/iio/adc/stm32-dfsdm-adc.c > > @@ -1221,14 +1221,32 @@ static int stm32_dfsdm_write_raw(struct iio_dev *indio_dev, > > unsigned int spi_freq; > > int ret = -EINVAL; > > > > + switch (ch->src) { > > + case DFSDM_CHANNEL_SPI_CLOCK_INTERNAL: > > + spi_freq = adc->dfsdm->spi_master_freq; > > + break; > > + case DFSDM_CHANNEL_SPI_CLOCK_INTERNAL_DIV2_FALLING: > > + case DFSDM_CHANNEL_SPI_CLOCK_INTERNAL_DIV2_RISING: > > + spi_freq = adc->dfsdm->spi_master_freq / 2; > > + break; > > + default: > > + spi_freq = adc->spi_freq; > > + } > > + > > switch (mask) { > > case IIO_CHAN_INFO_OVERSAMPLING_RATIO: > > ret = iio_device_claim_direct_mode(indio_dev); > > if (ret) > > return ret; > > + > > ret = stm32_dfsdm_compute_all_osrs(indio_dev, val); > > - if (!ret) > > + if (!ret) { > > + dev_dbg(&indio_dev->dev, > > + "Sampling rate changed from (%u) to (%u)\n", > > + adc->sample_freq, spi_freq / val); > > adc->oversamp = val; > > + adc->sample_freq = spi_freq / val; > > + } > > iio_device_release_direct_mode(indio_dev); > > return ret; > > > > @@ -1240,18 +1258,6 @@ static int stm32_dfsdm_write_raw(struct iio_dev *indio_dev, > > if (ret) > > return ret; > > > > - switch (ch->src) { > > - case DFSDM_CHANNEL_SPI_CLOCK_INTERNAL: > > - spi_freq = adc->dfsdm->spi_master_freq; > > - break; > > - case DFSDM_CHANNEL_SPI_CLOCK_INTERNAL_DIV2_FALLING: > > - case DFSDM_CHANNEL_SPI_CLOCK_INTERNAL_DIV2_RISING: > > - spi_freq = adc->dfsdm->spi_master_freq / 2; > > - break; > > - default: > > - spi_freq = adc->spi_freq; > > - } > > - > > ret = dfsdm_adc_set_samp_freq(indio_dev, val, spi_freq); > > iio_device_release_direct_mode(indio_dev); > > return ret; _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel