From patchwork Thu Jun 3 10:18:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Lee X-Patchwork-Id: 12296865 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=-12.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 87C7DC47096 for ; Thu, 3 Jun 2021 10:21:22 +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 51B2361359 for ; Thu, 3 Jun 2021 10:21:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 51B2361359 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=aspeedtech.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+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.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=sCTNpyEo1qtMJQ1auu35wffSY6UADCV/EwENIhuhkYc=; b=WnOMvnx04FUea0 wr6KDhsniSSbRskZpPJQI6pbV0leoDZNFyB+CLhtkzMpRn96ZA4ntRupz+OQdoWI/szznqY/7Bbnp rv09CaEJym4arzLiMacNJKjzWZtKaQwKHzSiweGzDylnzpYoYBbwvVSeOsmzABZVs+j5yuY1388Am MsEbMMbufy5gZ516/PjExbgN32sICAdImkccSR6uiOmkYHBulL0W/ymWjYuVIC5FZXuJjjeFAZwZV J5hmU2gdZMFQx377MNyDYtRoEbsi0qhUvUudHHwiIvSOys1aL/6DsO/ooDOhewbxVBssSBbDlfUGb 8PmPIQAEURCcO20p1F4w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1lokRJ-00848l-62; Thu, 03 Jun 2021 10:19:01 +0000 Received: from twspam01.aspeedtech.com ([211.20.114.71]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1lokRE-00846O-6W for linux-arm-kernel@lists.infradead.org; Thu, 03 Jun 2021 10:18:58 +0000 Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 153A4udU044855; Thu, 3 Jun 2021 18:04:56 +0800 (GMT-8) (envelope-from steven_lee@aspeedtech.com) Received: from slee-VirtualBox.localdomain (192.168.100.253) by TWMBX02.aspeed.com (192.168.0.24) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 3 Jun 2021 18:18:23 +0800 From: Steven Lee To: Linus Walleij , Bartosz Golaszewski , Rob Herring , Joel Stanley , Andrew Jeffery , "open list:GPIO SUBSYSTEM" , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , "moderated list:ARM/ASPEED MACHINE SUPPORT" , "moderated list:ARM/ASPEED MACHINE SUPPORT" , open list CC: , , , Subject: [PATCH v3 0/5] ASPEED sgpio driver enhancement. Date: Thu, 3 Jun 2021 18:18:16 +0800 Message-ID: <20210603101822.9645-1-steven_lee@aspeedtech.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [192.168.100.253] X-ClientProxiedBy: TWMBX02.aspeed.com (192.168.0.24) To TWMBX02.aspeed.com (192.168.0.24) X-DNSRBL: X-MAIL: twspam01.aspeedtech.com 153A4udU044855 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210603_031856_512967_E4A055B4 X-CRM114-Status: GOOD ( 11.42 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org AST2600 SoC has 2 SGPIO master interfaces one with 128 pins another one with 80 pins, AST2500/AST2400 SoC has 1 SGPIO master interface that supports up to 80 pins. In the current driver design, the max number of sgpio pins is hardcoded in macro MAX_NR_HW_SGPIO and the value is 80. For supporting sgpio master interfaces of AST2600 SoC, the patch series contains the following enhancement: - Convert txt dt-bindings to yaml. - Update aspeed-g6 dtsi to support the enhanced sgpio. - Define max number of gpio pins in ast2600 platform data. Old chip uses the original hardcoded value. - Support muiltiple SGPIO master interfaces. - Support up to 128 pins. - Support wdt reset tolerance. - Fix irq_chip issues which causes multiple sgpio devices use the same irq_chip data. Changes from v2: * Remove maximum/minimum of ngpios from bindings. * Remove max-ngpios from bindings and dtsi. * Remove ast2400-sgpiom and ast2500-sgpiom compatibles from dts and driver. * Add ast2600-sgpiom1 and ast2600-sgpiom2 compatibles as their max number of available gpio pins are different. * Modify functions to pass aspeed_sgpio struct instead of passing max_ngpios. * Split sgpio driver patch to 3 patches Changes from v1: * Fix yaml format issues. * Fix issues reported by kernel test robot. Please help to review. Thanks, Steven Steven Lee (5): dt-bindings: aspeed-sgpio: Convert txt bindings to yaml. ARM: dts: aspeed-g6: Add SGPIO node. gpio: gpio-aspeed-sgpio: Add AST2600 sgpio support gpio: gpio-aspeed-sgpio: Add set_config function gpio: gpio-aspeed-sgpio: Move irq_chip to aspeed-sgpio struct .../bindings/gpio/aspeed,sgpio.yaml | 78 ++++++++ .../devicetree/bindings/gpio/sgpio-aspeed.txt | 46 ----- arch/arm/boot/dts/aspeed-g6.dtsi | 30 +++ drivers/gpio/gpio-aspeed-sgpio.c | 182 +++++++++++++----- 4 files changed, 243 insertions(+), 93 deletions(-) create mode 100644 Documentation/devicetree/bindings/gpio/aspeed,sgpio.yaml delete mode 100644 Documentation/devicetree/bindings/gpio/sgpio-aspeed.txt