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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 A98FBC4CEC4 for ; Wed, 18 Sep 2019 06:23:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 756BD21925 for ; Wed, 18 Sep 2019 06:23:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568787818; bh=L0NefyNw+fmLtrMwBX9dMweJMjwLec/5MmMyXvZSIBI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=uBANiMQJkLSgBwC/ZMMH7JYWdYk849J29yRb2XjzoaauGigzvbK0OP7EZIRGM7RRr 3HRQyXA4vvF/OC0DVKy8+ynJXPqOrdU6x/DS1TWD1IyNFwabgWovmxPu+nIxNbyqNA mcLwYGQs9RaemfB0KE9gQT3AwvXZsRPs3P/LbYxw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729681AbfIRGXh (ORCPT ); Wed, 18 Sep 2019 02:23:37 -0400 Received: from mail.kernel.org ([198.145.29.99]:43806 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728146AbfIRGXe (ORCPT ); Wed, 18 Sep 2019 02:23:34 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 1C6ED218AF; Wed, 18 Sep 2019 06:23:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568787813; bh=L0NefyNw+fmLtrMwBX9dMweJMjwLec/5MmMyXvZSIBI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ydqJAI5vF4FxWm0WCnO/dFRqydPNaRKWjHEOylfeKTTteMTKxGwhVusGd1R11E/xq GXK66+0h9kcd3FJck31NPJN8aAY8QrP2yy7N4eke0jzwmPgLZYafFlaziXZTzwNkPS dAgU6L2eTXVabgVVdVHzy97vA84HVj+BsjSA92hg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Olivier Moysan , Fabrice Gasnier , Jonathan Cameron Subject: [PATCH 4.19 44/50] iio: adc: stm32-dfsdm: fix data type Date: Wed, 18 Sep 2019 08:19:27 +0200 Message-Id: <20190918061228.175134274@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190918061223.116178343@linuxfoundation.org> References: <20190918061223.116178343@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Olivier Moysan commit c6013bf50e2a2a94ab3d012e191096432aa50c6f upstream. Fix the data type as DFSDM raw output is complements 2, 24bits left aligned in a 32-bit register. This change does not affect AUDIO path - Set data as signed for IIO (as for AUDIO) - Set 8 bit right shift for IIO. The 8 LSBs bits of data contains channel info and are masked. Signed-off-by: Olivier Moysan Fixes: e2e6771c6462 ("IIO: ADC: add STM32 DFSDM sigma delta ADC support") Acked-by: Fabrice Gasnier Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/adc/stm32-dfsdm-adc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/iio/adc/stm32-dfsdm-adc.c +++ b/drivers/iio/adc/stm32-dfsdm-adc.c @@ -981,11 +981,11 @@ static int stm32_dfsdm_adc_chan_init_one ch->info_mask_shared_by_all = BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO); if (adc->dev_data->type == DFSDM_AUDIO) { - ch->scan_type.sign = 's'; ch->ext_info = dfsdm_adc_audio_ext_info; } else { - ch->scan_type.sign = 'u'; + ch->scan_type.shift = 8; } + ch->scan_type.sign = 's'; ch->scan_type.realbits = 24; ch->scan_type.storagebits = 32;