From patchwork Mon May 17 20:00:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dario Binacchi X-Patchwork-Id: 440336 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=-10.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 C5AA4C43460 for ; Mon, 17 May 2021 20:00:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 99DE2611ED for ; Mon, 17 May 2021 20:00:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236924AbhEQUB3 (ORCPT ); Mon, 17 May 2021 16:01:29 -0400 Received: from smtp-35.italiaonline.it ([213.209.10.35]:49516 "EHLO libero.it" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S233942AbhEQUB2 (ORCPT ); Mon, 17 May 2021 16:01:28 -0400 Received: from passgat-Modern-14-A10M.homenet.telecomitalia.it ([95.244.94.151]) by smtp-35.iol.local with ESMTPA id ijPJlPskepK9wijPNlg8J9; Mon, 17 May 2021 22:00:10 +0200 x-libjamoibt: 1601 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=libero.it; s=s2021; t=1621281610; bh=asrIPUdSzvBL6ovQpCIYIxVAs/NrCAs02e5wyOQrjFk=; h=From; b=m5xE/wgC6kHPhXkDreh4Ghf0XfsVwzudo3YbWsVaEGQfIkiIyFOa12qrUfKqW1A47 Xw1EVp31Dh4P3+PRWNfn5onAKFN2FG0AEbtOHtc4ZJLCPfiYIMHrm5r391U5wSuqs0 mBC0J9Duf+sznMfxtDPkasis/9PLQ7RF7p+rn7n75SLijG4probWaysXa7HsBKOdjN /kankolc/m84XHOHmHn7tnD/dizvAmyHyYWuE+QQBHgOxOLVEdDVThn8HpYmIMgDFH +BDauxGaN813ZQWlfEdeHP0i0es6/kZKZtBVTuWXELn4BMNF8cHbXc+emrln5mutBg PziXUmlB7e8Og== X-CNFS-Analysis: v=2.4 cv=A9ipg4aG c=1 sm=1 tr=0 ts=60a2cb4a cx=a_exe a=ugxisoNCKEotYwafST++Mw==:117 a=ugxisoNCKEotYwafST++Mw==:17 a=sozttTNsAAAA:8 a=GWagjzjhKccDtmdoy8IA:9 a=aeg5Gbbo78KNqacMgKqU:22 From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Dario Binacchi , Haojian Zhuang , Linus Walleij , Tony Lindgren , linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, linux-omap@vger.kernel.org Subject: [PATCH v2 0/2] am335x: set pinmux registers from pins debug file Date: Mon, 17 May 2021 22:00:00 +0200 Message-Id: <20210517200002.6316-1-dariobin@libero.it> X-Mailer: git-send-email 2.17.1 X-CMAE-Envelope: MS4xfLx0TcvsHrcNzWtXVUq2wnkrd0xhmWrjEbSoW6Ku1Z8AF22pM/q3NjEFbkV2TsjpISAkxXAtRiSkOL2CLimlcchLMAld5RvLTAWjmgu41doM+ugAko0U Pf0V2GaozQMdFjBk+I0BEY75PO6EApb0dptS1qg5PBHWnivCmaQRHoHLRgfaJKr5HxKO1sFEz82wQwv5xJ/yjwJvOasOqEwCip2/shV8BEHTsVIAGPjMveOF Gmx0V2ZkniKk7iY8+Pnxyz0UiSPusxWaNbmt1/SM+pkDPquRqVBGjaEzNYzp4ML78p1fCG7cHuzaQV3wYJ2BlJ7CvQEG4wK3mgZgZ+csqODCzFJQV6jdhIOp 0Furwn9CGS6F05Rcz9Ae5+XskrftFBKxGwVHUaU44kuZOLLvZ2hoZ8t1lDE2feFPdWBWpeX5KeAQWeZipmHLmGgqdaIkwgd3DA3c/r8Eg/W9yf07gvGWo5XT OXdUzb1W5B4tzKBnyE11q2hbi/LLyOcz0O6kDA== Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org The patch was born from the need to change the slew rate of the LCD pins of a custom AM335x board during EMC tests. The AM335x, as described in a note in section 9.1 of its reference manual [1], is unable to write pinmux registers from user space. The series now makes it possible to write these registers from the pins debug file. [1] https://www.ti.com/lit/ug/spruh73q/spruh73q.pdf Changes in v2: - Remove CONFIG_SOC_AM33XX dependency. Dario Binacchi (2): pinctrl: core: configure pinmux from pins debug file pinctrl: single: set pinmux from pins debug file drivers/pinctrl/core.c | 56 ++++++++++++++++++++++++++++++-- drivers/pinctrl/pinctrl-single.c | 20 ++++++++++++ include/linux/pinctrl/pinctrl.h | 2 ++ 3 files changed, 76 insertions(+), 2 deletions(-)