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 D99A4C47DDB for ; Tue, 30 Jan 2024 23:39:30 +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:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=zGizXypuA26hY5Uf5idF3E1hCMKKgg0aa01hFHGJyRs=; b=w1uR08IMkTUqq/ hP5IQ1H2zwqAQnrcWNEVzKIMMjv6pDlifUCZwHr4vzjC1Xy/INIfeQlKY5pwqwiIroUF1MIBHRwP9 N5UGbNSFy2bPRvttuKRUKuTga1gmJJxnQGiG9FKe2biNG19oanECLP1/0TCQpCkClHjuEphRPZf5d SEquo3oAos2Uy85ONsmV6n0MhhZazz5UFrRaKXak6CjoRG2/l4ATXWGGEmSufD3OGta+tRFPNaC1M L/E2KY1VnWMAV1ha3Z+/BU0kxHUGzsHnnPeqOoDlLx+BlT9jwm0C5uShMAE2i+NqweRMB6VkGwp3D HOYcozh/kToOpT3psiXw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rUxhG-00000000vte-3PdN; Tue, 30 Jan 2024 23:39:18 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rUxhD-00000000vsK-2krB for linux-arm-kernel@lists.infradead.org; Tue, 30 Jan 2024 23:39:16 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 31D5361170; Tue, 30 Jan 2024 23:39:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BA8BAC433F1; Tue, 30 Jan 2024 23:39:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1706657954; bh=SWhI9SxUKhbmDM6VC3Ww/o/zAc3CMboKSmdOI2DEQUQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=clQj8YvdIRqfCZ71/YLjXkrbQeN1jJ6hp51k9LHxlbTRd0euaSHP4YVjz+GWbmr49 4VCVabrAjew0rJS11xyeUvCMENFvk2FtYAMKbM+jA6I4XQQXddgwLksUeGfHT5+iPQ CepZ8/u1RO367Ydon9G8AcpGK+hEBtcq5ViW4WdQ= Date: Tue, 30 Jan 2024 15:39:13 -0800 From: "'gregkh@linuxfoundation.org'" To: "Corona, Ernesto" Cc: "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-aspeed@lists.ozlabs.org" , "'oleksandrs@mellanox.com'" , "Castro, Omar Eduardo" , "'omar.eduardo.castro@linux.intel.com'" , "'pombredanne@nexb.com'" , "'corbet@lwn.net'" , "'gustavo.pimentel@synopsys.com'" , "'lorenzo.pieralisi@arm.com'" , "'kishon@ti.com'" , "'darrick.wong@oracle.com'" , "'bryantly@linux.vnet.ibm.com'" , "'sandeen@redhat.com'" , "'rdunlap@infradead.org'" , "'kusumi.tomohiro@gmail.com'" , "'arnd@arndb.de'" , "'mchehab+samsung@kernel.org'" , "'alexandre.belloni@bootlin.com'" , "'tytso@mit.edu'" , "'ebiggers@google.com'" , "Filary, Steven A" , "'jiri@nvidia.com'" , "'vadimp@mellanox.com'" , "'amithash@fb.com'" , "'patrickw3@fb.com'" , "Chen, Luke" , "'billy_tsai@aspeedtech.com'" , "'rgrs@protonmail.com'" Subject: Re: [PATCH 30 5/7] Add JTAG core driver ioctl number Message-ID: <2024013024-starship-referee-7ab3@gregkh> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240130_153915_763849_5B133B81 X-CRM114-Status: GOOD ( 11.22 ) 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 On Tue, Jan 30, 2024 at 11:32:14PM +0000, Corona, Ernesto wrote: > JTAG class driver provide infrastructure to support hardware/software JTAG platform drivers. It provide user layer API interface for flashing and debugging external devices which equipped with JTAG interface using standard transactions. Please properly wrap your changelog text, didn't checkpatch warn of this? > Driver exposes set of IOCTL to user space for: > - XFER: > SIR (Scan Instruction Register, IEEE 1149.1 Data Register scan); > SDR (Scan Data Register, IEEE 1149.1 Instruction Register scan); > - GIOCSTATUS read the current TAPC state of the JTAG controller > - SIOCSTATE Forces the JTAG TAPC to go into a particular state. > - SIOCFREQ/GIOCFREQ for setting and reading JTAG frequency. > - IOCBITBANG for low level control of JTAG signals. Where are these ioctls implemented? THat has nothing to do with this patch itself, right? And what's the "30" in the patch number above for? confused, greg k-h _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel