From patchwork Fri Oct 25 13:01:22 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre TORGUE X-Patchwork-Id: 11212307 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E2FE114E5 for ; Fri, 25 Oct 2019 13:01:28 +0000 (UTC) Received: from web01.groups.io (web01.groups.io [66.175.222.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B6BA9222C4 for ; Fri, 25 Oct 2019 13:01:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=linux.kernel.org header.i=@linux.kernel.org header.b="I8AEL2nT" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B6BA9222C4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=st.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=bounce+26986+720+1554929+3438807@linux.kernel.org X-Received: by 127.0.0.2 with SMTP id aaaaYY1556264xaaaaaaaaaa; Fri, 25 Oct 2019 06:01:28 -0700 X-Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by mx.groups.io with SMTP id smtpd.web10.4102.1572008488217024395 for ; Fri, 25 Oct 2019 06:01:28 -0700 X-Received: by mail.kernel.org (Postfix) id F18A421D7F; Fri, 25 Oct 2019 13:01:27 +0000 (UTC) X-Received: from mx07-00178001.pphosted.com (mx08-00178001.pphosted.com [91.207.212.93]) (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 8FB09222BE; Fri, 25 Oct 2019 13:01:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8FB09222BE X-Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx08-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id x9PCu886023815; Fri, 25 Oct 2019 15:01:24 +0200 X-Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx08-00178001.pphosted.com with ESMTP id 2vt9s7fssb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 25 Oct 2019 15:01:24 +0200 X-Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 9FF9B100034; Fri, 25 Oct 2019 15:01:23 +0200 (CEST) X-Received: from Webmail-eu.st.com (sfhdag3node2.st.com [10.75.127.8]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 90C9F2AB370; Fri, 25 Oct 2019 15:01:23 +0200 (CEST) X-Received: from localhost (10.75.127.45) by SFHDAG3NODE2.st.com (10.75.127.8) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Fri, 25 Oct 2019 15:01:23 +0200 From: Alexandre Torgue To: Linuxkernel+Patchwork-Soc via Email Integration CC: Maxime Coquelin , Alexandre Torgue Subject: [PATCH] ARM: dts: stm32: relax qspi pins slew-rate for stm32mp157 Date: Fri, 25 Oct 2019 15:01:22 +0200 Message-ID: <20191025130122.11407-1-alexandre.torgue@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.45] X-ClientProxiedBy: SFHDAG5NODE1.st.com (10.75.127.13) To SFHDAG3NODE2.st.com (10.75.127.8) Precedence: Bulk List-Unsubscribe: Sender: patchwork-soc@linux.kernel.org List-Id: Mailing-List: list patchwork-soc@linux.kernel.org; contact patchwork-soc+owner@linux.kernel.org Delivered-To: mailing list patchwork-soc@linux.kernel.org Reply-To: patchwork-soc+owner@linux.kernel.org X-Gm-Message-State: aaaaaaaaaaaaaaaaaaaaaaaax1554929AA= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux.kernel.org; q=dns/txt; s=20140610; t=1572008488; bh=ylyggPUpjNhVaa/wNTJj1eJtIOD8N1QYlIYyelo6gBQ=; h=CC:Content-Type:Date:From:Reply-To:Subject:To; b=I8AEL2nTVTerEfvhhgXwvxG6UJ4/FdU9BQkNPqzEDZ791+5aiwyj11kXbS8EVlrcuHo teblOS24cHih1y4t14NKRowKJawKvkNdRZ4W9gz7gH+w2SvP3hmlhq1uCp3r9uGXs9CGI UVePpWPXiUL+E5ZbAEqz/npAvkTJfmudZII= From: Patrice Chotard Relax qspi pins slew-rate to minimize peak currents. Fixes: 844030057339 ("ARM: dts: stm32: add flash nor support on stm32mp157c eval board") Signed-off-by: Patrice Chotard Signed-off-by: Alexandre Torgue --- Hi Arnd, Olof and Kevin, Can you please consider this fix in v5.4 cycle ? Thanks Alex diff --git a/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi index e4a0d51ec3a8..0a3a7d66737b 100644 --- a/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi +++ b/arch/arm/boot/dts/stm32mp157-pinctrl.dtsi @@ -609,13 +609,13 @@ ; /* QSPI_BK1_IO3 */ bias-disable; drive-push-pull; - slew-rate = <3>; + slew-rate = <1>; }; pins2 { pinmux = ; /* QSPI_BK1_NCS */ bias-pull-up; drive-push-pull; - slew-rate = <3>; + slew-rate = <1>; }; }; @@ -637,13 +637,13 @@ ; /* QSPI_BK2_IO3 */ bias-disable; drive-push-pull; - slew-rate = <3>; + slew-rate = <1>; }; pins2 { pinmux = ; /* QSPI_BK2_NCS */ bias-pull-up; drive-push-pull; - slew-rate = <3>; + slew-rate = <1>; }; };