From patchwork Wed May 26 09:46:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steven Lee X-Patchwork-Id: 448461 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=-11.8 required=3.0 tests=BAYES_00, 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 7C529C47088 for ; Wed, 26 May 2021 09:46:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 56D2861444 for ; Wed, 26 May 2021 09:46:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233666AbhEZJsU (ORCPT ); Wed, 26 May 2021 05:48:20 -0400 Received: from twspam01.aspeedtech.com ([211.20.114.71]:14848 "EHLO twspam01.aspeedtech.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233653AbhEZJsT (ORCPT ); Wed, 26 May 2021 05:48:19 -0400 Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 14Q9X9CB082694; Wed, 26 May 2021 17:33:09 +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; Wed, 26 May 2021 17:46:11 +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 v1 0/4] ASPEED sgpio driver enhancement. Date: Wed, 26 May 2021 17:46:04 +0800 Message-ID: <20210526094609.14068-1-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 14Q9X9CB082694 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.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 dtsi to support the enhanced sgpio. - Get the max number of sgpio that SoC supported from dts. - Support muiltiple SGPIO master interfaces. - Support up to 128 pins. Please help to review. Thanks, Steven Steven Lee (4): dt-bindings: aspeed-sgpio: Convert txt bindings to yaml. ARM: dts: aspeed-g6: Add SGPIO node. ARM: dts: aspeed-g5: Modify sgpio node for the enhanced sgpio driver. gpio: gpio-aspeed-sgpio: Add AST2600 sgpio support .../bindings/gpio/aspeed,sgpio.yaml | 91 +++++++++ .../devicetree/bindings/gpio/sgpio-aspeed.txt | 46 ----- arch/arm/boot/dts/aspeed-g5.dtsi | 3 +- arch/arm/boot/dts/aspeed-g6.dtsi | 32 +++ drivers/gpio/gpio-aspeed-sgpio.c | 193 ++++++++++++------ 5 files changed, 250 insertions(+), 115 deletions(-) create mode 100644 Documentation/devicetree/bindings/gpio/aspeed,sgpio.yaml delete mode 100644 Documentation/devicetree/bindings/gpio/sgpio-aspeed.txt