From patchwork Wed Jun 12 07:24:36 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabrice Gasnier X-Patchwork-Id: 10988811 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9BABA14C0 for ; Wed, 12 Jun 2019 07:25:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 81BFA1FEBA for ; Wed, 12 Jun 2019 07:25:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7608228477; Wed, 12 Jun 2019 07:25:58 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1C5A62845C for ; Wed, 12 Jun 2019 07:25:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731465AbfFLHZm (ORCPT ); Wed, 12 Jun 2019 03:25:42 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:3938 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729080AbfFLHZk (ORCPT ); Wed, 12 Jun 2019 03:25:40 -0400 Received: from pps.filterd (m0046668.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x5C7LXNM032480; Wed, 12 Jun 2019 09:25:04 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=STMicroelectronics; bh=mscPIPZ3FaNG1fi5inSmP9H7jFv8oBUHJnCQ3UPmBlE=; b=acMmyrCwj6N46GmEph6JwKd35yXOV71CZZlDPjJ3TYyG1LfBriKSz6H3Xg4mT0QTNJIc apRV1Lq8OdtXeYqfkWxEb0HF8pMi5+OWtd+bQdEPw73+D9J/ni1zFRFdkDEpRiDebMcv O9Mfsqf6ut9ZcQ4w3iXhazPoTKSNjqFxHQSRPAaoApScRlWo/3yPL+oV0cfO6J8okujh sEivAA8CaZggmlbBfIBKOuenOH/yIvQAZBpfKPF6kCT9yJF+d6q4kmPSadddkKynUEHr joqgQCjfL2Rtz5LdK9DtnS6JP8bhipdawayoBuvgDipL1leC18zifKehN5GiZJkr1SV2 1w== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2t2f8bukdj-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Wed, 12 Jun 2019 09:25:04 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 798D63D; Wed, 12 Jun 2019 07:25:03 +0000 (GMT) Received: from Webmail-eu.st.com (sfhdag5node3.st.com [10.75.127.15]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 0C0C7164B; Wed, 12 Jun 2019 07:25:03 +0000 (GMT) Received: from localhost (10.75.127.48) by SFHDAG5NODE3.st.com (10.75.127.15) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Wed, 12 Jun 2019 09:25:02 +0200 From: Fabrice Gasnier To: , , CC: , , , , , , , , , , Subject: [PATCH 3/3] ARM: dts: stm32: add ADC analog switches syscfg on stm32mp157c Date: Wed, 12 Jun 2019 09:24:36 +0200 Message-ID: <1560324276-681-4-git-send-email-fabrice.gasnier@st.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1560324276-681-1-git-send-email-fabrice.gasnier@st.com> References: <1560324276-681-1-git-send-email-fabrice.gasnier@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.48] X-ClientProxiedBy: SFHDAG6NODE3.st.com (10.75.127.18) To SFHDAG5NODE3.st.com (10.75.127.15) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-06-12_04:,, signatures=0 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP On stm32mp157c, the ADC inputs are multiplexed with analog switches which have reduced performances when their supply is below 2.7V (vdda by default). Add syscfg registers that can be used on stm32mp157c, to get full ADC analog performances. Signed-off-by: Fabrice Gasnier --- arch/arm/boot/dts/stm32mp157c.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi index 2afeee6..64d71c9 100644 --- a/arch/arm/boot/dts/stm32mp157c.dtsi +++ b/arch/arm/boot/dts/stm32mp157c.dtsi @@ -856,6 +856,7 @@ clocks = <&rcc ADC12>, <&rcc ADC12_K>; clock-names = "bus", "adc"; interrupt-controller; + st,syscfg = <&syscfg>; #interrupt-cells = <1>; #address-cells = <1>; #size-cells = <0>;