From mboxrd@z Thu Jan 1 00:00:00 1970 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 8A0CDC46CD4 for ; Fri, 29 Dec 2023 13:01:50 +0000 (UTC) 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:References :In-Reply-To:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=2spzyeomGmsAVgUky/cBvkzv+58c5/TKEYY79vPYey8=; b=SX3MwZ9owkGgze 6d1dgCWxGZ/gUws8DO5xR6zx9KJ4NnXjy3wz9CgcNF8TuBLtgS8a8oJHsq8Apui2iURErQritcPOH OVkgk1MA53Uv6kauxe8QYl0J2w1qjvAILZrtjZaUk2ZpfPANjuGeU8vZpEP8wHH3Wd64t8i89r5z2 LYF7BnVP8gWpRkG0xy30DTM4qB3AO72fC664CvUy6u/gJVdX/JmGYMS68xOeV6NOXMISvDiYb8pKr 6bawDjmBtCraNM5TVVdBRv/zHGXFK4QW32CAx540uPuNNsKa4KPsBzlTdZcmFGLfiOCh301joqPSk /hf3tnJrDEwe9zgPyGBw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rJCUE-000w5u-2n; Fri, 29 Dec 2023 13:01:14 +0000 Received: from eggs.gnu.org ([2001:470:142:3::10]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rJCUB-000w5G-1q for linux-arm-kernel@lists.infradead.org; Fri, 29 Dec 2023 13:01:13 +0000 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rJCU2-00032e-BJ; Fri, 29 Dec 2023 08:01:02 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-Version:Date:References:In-Reply-To:Subject:To: From; bh=L8E+uQiPVMJl0Ysub+xW5uqgmBXvPg/3AXYx0vVI4oY=; b=J4OxaaYKYjofgxnJb3Nv tVd3oqHfbaSAmzfAyeUJunKTWpdGkinSyIf2N0YeZ4UEHd+BU0eEOcOufCUzsHL/7LQqRaaI4JVl8 Az4Nf4LoCujD+C/JfXOFB6HtklDNtNOZiGBcYzubqHst/YcIx3npVqewU6PBOOXURdSLyKVkEG0XV sSJ7STzOpwCXR4F691CtalFSebzoaGSFQagCURT//Uov0TUwmJcSRG64E8gkEtg1r6h6fg86duiMg z5vjif5MIlXPxuXPHDy7mWqSByjQqbXKVm9DEjxgiT0NtXJoKX3rQhTPA/j9683zBfyIy78L1kL5D FZhOhynw+Q+mOw==; From: Mathieu Othacehe To: Stefan Wahren Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Li Yang , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Krzysztof Kozlowski Subject: Re: [PATCH v4 2/2] arm64: dts: imx93-var-som: Add Variscite VAR-SOM-MX93 In-Reply-To: (Stefan Wahren's message of "Thu, 28 Dec 2023 21:46:08 +0100") References: <20231227170919.8771-1-othacehe@gnu.org> <20231227170919.8771-3-othacehe@gnu.org> Date: Fri, 29 Dec 2023 14:00:58 +0100 Message-ID: <87plypqi2d.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231229_050111_891405_E9A644C5 X-CRM114-Status: UNSURE ( 8.68 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hello Stefan, > there are neither gpio-line-names defined for this GPIO expander nor the > SOC. Are there no GPIOs which can be accessed from userspace? The carrier board schematic is here: https://www.variscite.com/wp-content/uploads/2023/01/symphony-board_VAR-SOM-MX93.pdf All the pin headers are mapped to specific functions. On the other, already mainlined device-trees, that are based on the same "Symphony" carrier board, there are however gpio-keys for three buttons: gpio-keys { compatible = "gpio-keys"; key-back { label = "Back"; gpios = <&pca9534 1 GPIO_ACTIVE_LOW>; linux,code = ; }; key-home { label = "Home"; gpios = <&pca9534 2 GPIO_ACTIVE_LOW>; linux,code = ; }; key-menu { label = "Menu"; gpios = <&pca9534 3 GPIO_ACTIVE_LOW>; linux,code = ; }; }; I can add that in v5. Thanks, Mathieu _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel