From patchwork Fri Aug 30 03:40:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Billy Tsai X-Patchwork-Id: 13784175 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id D0B38CA0ED2 for ; Fri, 30 Aug 2024 03:42:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject:To:From: Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=RV18HtrPli2WZck8lr/K+3rLdixP6ndlf86GWE3vpSE=; b=AdSx+cxXn5McEi BuO1SmZLLqo+lzNrZME4Rr7ps3T9XJ4o0/g0nXDGjeh0nvRvHeo49GjI7HCQZo0lFPhTo+av8P2Kb GWCt1PexOD0D9GortlEvkDjuMD8oavjRDIuODcmGi/6RsEg1edOSLcZJqau6pP9FIHYn93oLSzLAI k6FCE8GGuT9yEXvw2PWPkwGsVUEBqTzqUCEshmKEXyQlPi7HyrCE79ZG1hxLqv3ndkxRAyBs70+Nr 5zu8+hat0AGdIROie5Th+8iNDQ1cSVvCBW0GlX4A7TT8H/ZaZsaSUETelxOLby0aAFzz+7uVCBjHK Ovrfn3hqPdcLWIhpFABw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sjsWE-00000004XcM-1Uto; Fri, 30 Aug 2024 03:41:50 +0000 Received: from mail.aspeedtech.com ([211.20.114.72] helo=TWMBX01.aspeed.com) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sjsVM-00000004XPK-3PnG for linux-arm-kernel@lists.infradead.org; Fri, 30 Aug 2024 03:40:58 +0000 Received: from TWMBX01.aspeed.com (192.168.0.62) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.12; Fri, 30 Aug 2024 11:40:47 +0800 Received: from mail.aspeedtech.com (192.168.10.10) by TWMBX01.aspeed.com (192.168.0.62) with Microsoft SMTP Server id 15.2.1258.12 via Frontend Transport; Fri, 30 Aug 2024 11:40:47 +0800 From: Billy Tsai To: , , , , , , , , , , , , Subject: [PATCH v2 0/4] Add Aspeed G7 gpio support Date: Fri, 30 Aug 2024 11:40:43 +0800 Message-ID: <20240830034047.2251482-1-billy_tsai@aspeedtech.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240829_204056_876838_3736FB00 X-CRM114-Status: UNSURE ( 7.42 ) X-CRM114-Notice: Please train this message. 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 The Aspeed 7th generation SoC features two GPIO controllers: one with 12 GPIO pins and another with 216 GPIO pins. The main difference from the previous generation is that the control logic has been updated to support per-pin control, allowing each pin to have its own 32-bit register for configuring value, direction, interrupt type, and more. This patch serial also add low-level operations (llops) to abstract the register access for GPIO registers and the coprocessor request/release in gpio-aspeed.c making it easier to extend the driver to support different hardware register layouts. Changes since v1: - Merge the gpio-aspeed-g7.c into the gpio-aspeed.c. - Create the llops in gpio-aspeed.c for flexibility. Billy Tsai (4): dt-bindings: gpio: aspeed,ast2400-gpio: Support ast2700 gpio: aspeed: Remove the name for bank array gpio: aspeed: Create llops to handle hardware access gpio: aspeed: Support G7 Aspeed gpio controller .../bindings/gpio/aspeed,ast2400-gpio.yaml | 46 +- drivers/gpio/gpio-aspeed.c | 442 ++++++++++-------- 2 files changed, 303 insertions(+), 185 deletions(-)