From patchwork Sun Apr 28 21:37:47 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marek_Beh=C3=BAn?= X-Patchwork-Id: 10921067 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id F393414C0 for ; Sun, 28 Apr 2019 21:38:43 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DFAB9284AF for ; Sun, 28 Apr 2019 21:38:43 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D2EDF28703; Sun, 28 Apr 2019 21:38:43 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 69783284AF for ; Sun, 28 Apr 2019 21:38:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=hEP1bHwP/a4fN3SDGOJcGBsY56GQv1mU78RBZ0l/npA=; b=PfH2tHFd9N6Ebu vhMTkZ0iUeBIVzvy+ZBjboiD7bS7zzNaq19nFUvI9opRZ8tlLlI+wDq/LzT8k0AxJxRJ9HCveM39r TQz6tf2eCVlAWZ+E8bcLNKJvyxINf93+EtVoer5g7OL26ujRQ4J1wACemR+dnK1r9nED072uEjL9k til7YxghEKmOYDQSC2Duk+Vh+N6OeadsrJCAv7f/SKwW6z9mmPSVsv3H5UawNX6z4JU67DpPxAE7S QGFN0bu3R4hdhMbcY4Ctm7VrRCtEavNRfjMVVAv/VOUhTf2eaglqCqf6gEKhX5l9cJf5uoxXoRegG mtyUlfmacH2UPWhPirrg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hKrVN-0001LG-Qf; Sun, 28 Apr 2019 21:38:37 +0000 Received: from mail.nic.cz ([2001:1488:800:400::400]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hKrUi-0000f1-07 for linux-arm-kernel@lists.infradead.org; Sun, 28 Apr 2019 21:38:00 +0000 Received: from dellmb.labs.office.nic.cz (unknown [172.20.6.125]) by mail.nic.cz (Postfix) with ESMTP id 6F43D636CA; Sun, 28 Apr 2019 23:37:50 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=nic.cz; s=default; t=1556487470; bh=sA7kiEuh4QXCWYPshokQR9pDPoUOEQczNIZkvDbYtX8=; h=From:To:Date; b=tycPbfQ7VOvKrJSdGcyLrvgVjqEjtGeE/Hk0lCjmf5taQ7iqgBqXHFcUcQIpiI5xP zQ9Il8gDuVH3IlLOJ5MPOHE66jl3J5mhZseVMK36Jf17H8s2U4PeESoLkjNvdbG0nf vIecEAiEe8KWM9391fxPTIObLPFWJ6ysVG0m+BhY= From: =?utf-8?q?Marek_Beh=C3=BAn?= To: Olof Johansson Subject: [PATCH v5 armsoc/drivers/bus+gpio 3/5] bus: moxtet: Add sysfs and debugfs documentation Date: Sun, 28 Apr 2019 23:37:47 +0200 Message-Id: <20190428213749.7017-4-marek.behun@nic.cz> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190428213749.7017-1-marek.behun@nic.cz> References: <20190428213749.7017-1-marek.behun@nic.cz> MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.99.2 at mail X-Virus-Status: Clean X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190428_143756_373277_411578D4 X-CRM114-Status: GOOD ( 10.01 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linus Walleij , arm@kernel.org, linux-arm-kernel@lists.infradead.org, =?utf-8?q?Marek_Beh=C3=BAn?= Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add sysfs ABI documentation for the attribute files module_id and module_name Add debugfs ABI documentation for reading input from the shift registers and reading last written output or write output to the shift registers. Signed-off-by: Marek Behún Reviewed-by: Linus Walleij --- Documentation/ABI/testing/debugfs-moxtet | 23 +++++++++++++++++++ .../ABI/testing/sysfs-bus-moxtet-devices | 17 ++++++++++++++ MAINTAINERS | 2 ++ 3 files changed, 42 insertions(+) create mode 100644 Documentation/ABI/testing/debugfs-moxtet create mode 100644 Documentation/ABI/testing/sysfs-bus-moxtet-devices diff --git a/Documentation/ABI/testing/debugfs-moxtet b/Documentation/ABI/testing/debugfs-moxtet new file mode 100644 index 000000000000..32a02e7d0f4e --- /dev/null +++ b/Documentation/ABI/testing/debugfs-moxtet @@ -0,0 +1,23 @@ +What: /sys/kernel/debug/moxtet/input +Date: March 2019 +KernelVersion: 5.2 +Contact: Marek Behún +Description: (R) Read input from the shift registers, in hexadecimal. + Returns N+1 bytes, where N is the number of Moxtet connected + modules. The first byte is from the CPU board itself. + Example: 101214 + 10: CPU board with SD card + 12: 2 = PCIe module, 1 = IRQ not active + 14: 4 = Peridot module, 1 = IRQ not active + +What: /sys/kernel/debug/moxtet/output +Date: March 2019 +KernelVersion: 5.2 +Contact: Marek Behún +Description: (RW) Read last written value to the shift registers, in + hexadecimal, or write values to the shift registers, also + in hexadecimal. + Example: 0102 + 01: 01 was last written, or is to be written, to the + first module's shift register + 02: the same for second module diff --git a/Documentation/ABI/testing/sysfs-bus-moxtet-devices b/Documentation/ABI/testing/sysfs-bus-moxtet-devices new file mode 100644 index 000000000000..3e3256b37a3c --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-moxtet-devices @@ -0,0 +1,17 @@ +What: /sys/bus/moxtet/devices/moxtet-./module_description +Date: March 2019 +KernelVersion: 5.2 +Contact: Marek Behún +Description: (R) Moxtet module description. Format: string + +What: /sys/bus/moxtet/devices/moxtet-./module_id +Date: March 2019 +KernelVersion: 5.2 +Contact: Marek Behún +Description: (R) Moxtet module ID. Format: %x + +What: /sys/bus/moxtet/devices/moxtet-./module_name +Date: March 2019 +KernelVersion: 5.2 +Contact: Marek Behún +Description: (R) Moxtet module name. Format: string diff --git a/MAINTAINERS b/MAINTAINERS index 2b5ff3368059..9db8f74e1da7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1541,6 +1541,8 @@ ARM/CZ.NIC TURRIS MOX SUPPORT M: Marek Behun W: http://mox.turris.cz S: Maintained +F: Documentation/ABI/testing/debugfs-moxtet +F: Documentation/ABI/testing/sysfs-bus-moxtet-devices F: Documentation/devicetree/bindings/bus/moxtet.txt F: include/linux/moxtet.h F: drivers/bus/moxtet.c