From patchwork Wed Feb 1 16:53:46 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christopher Bostic X-Patchwork-Id: 9550363 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0626660425 for ; Wed, 1 Feb 2017 17:39:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EBCB220242 for ; Wed, 1 Feb 2017 17:39:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E07872845D; Wed, 1 Feb 2017 17:39:28 +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=-1.9 required=2.0 tests=BAYES_00 autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7E66F20242 for ; Wed, 1 Feb 2017 17:39:28 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cYysR-0001cw-Uw; Wed, 01 Feb 2017 17:39:27 +0000 Received: from merlin.infradead.org ([205.233.59.134]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cYyrr-0000kX-3U for linux-arm-kernel@bombadil.infradead.org; Wed, 01 Feb 2017 17:38:51 +0000 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]) by merlin.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cYyCC-0008GN-Ts for linux-arm-kernel@lists.infradead.org; Wed, 01 Feb 2017 16:55:49 +0000 Received: from pps.filterd (m0098410.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v11Gs6tX071360 for ; Wed, 1 Feb 2017 11:55:19 -0500 Received: from e18.ny.us.ibm.com (e18.ny.us.ibm.com [129.33.205.208]) by mx0a-001b2d01.pphosted.com with ESMTP id 28behtdrpm-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Wed, 01 Feb 2017 11:55:19 -0500 Received: from localhost by e18.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 1 Feb 2017 11:55:18 -0500 Received: from d01dlp02.pok.ibm.com (9.56.250.167) by e18.ny.us.ibm.com (146.89.104.205) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Wed, 1 Feb 2017 11:55:14 -0500 Received: from b01cxnp23032.gho.pok.ibm.com (b01cxnp23032.gho.pok.ibm.com [9.57.198.27]) by d01dlp02.pok.ibm.com (Postfix) with ESMTP id 972936E801D; Wed, 1 Feb 2017 11:54:45 -0500 (EST) Received: from b01ledav002.gho.pok.ibm.com (b01ledav002.gho.pok.ibm.com [9.57.199.107]) by b01cxnp23032.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v11GtDrn11469242; Wed, 1 Feb 2017 16:55:13 GMT Received: from b01ledav002.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6FDB7124052; Wed, 1 Feb 2017 11:55:13 -0500 (EST) Received: from Christophers-MacBook-Pro.local.com (unknown [9.81.201.28]) by b01ledav002.gho.pok.ibm.com (Postfix) with ESMTP id 90A7012403F; Wed, 1 Feb 2017 11:55:04 -0500 (EST) From: Christopher Bostic To: robh+dt@kernel.org, mark.rutland@arm.com, linux@armlinux.org.uk, gregkh@linuxfoundation.org, mturquette@baylibre.com, geert+renesas@glider.be, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, joel@jms.id.au, linux-kernel@vger.kernel.org, andrew@aj.id.au, alistair@popple.id.au, benh@kernel.crashing.org Subject: [PATCH v3 06/18] drivers/fsi: Add empty master scan Date: Wed, 1 Feb 2017 10:53:46 -0600 X-Mailer: git-send-email 2.10.1 (Apple Git-78) In-Reply-To: <20170201165358.45415-1-cbostic@linux.vnet.ibm.com> References: <20170201165358.45415-1-cbostic@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 X-Content-Scanned: Fidelis XPS MAILER x-cbid: 17020116-0044-0000-0000-00000271105A X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00006537; HX=3.00000240; KW=3.00000007; PH=3.00000004; SC=3.00000201; SDB=6.00815768; UDB=6.00398295; IPR=6.00593211; BA=6.00005108; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00014138; XFM=3.00000011; UTC=2017-02-01 16:55:17 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17020116-0045-0000-0000-0000069E1201 Message-Id: <20170201165358.45415-7-cbostic@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-02-01_13:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1612050000 definitions=main-1702010167 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170201_115549_094803_1ACDE1C4 X-CRM114-Status: GOOD ( 12.79 ) 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: Jeremy Kerr , Chris Bostic MIME-Version: 1.0 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 From: Jeremy Kerr When a new fsi master is added, we will need to scan its links, and slaves attached to those links. This change introduces a little shell to iterate the links, which we will populate with the actual slave scan in a later change. Signed-off-by: Jeremy Kerr Signed-off-by: Chris Bostic --- drivers/fsi/fsi-core.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c index 78d9c558..3160c1c 100644 --- a/drivers/fsi/fsi-core.c +++ b/drivers/fsi/fsi-core.c @@ -20,6 +20,8 @@ #include "fsi-master.h" +#define FSI_N_SLAVES 4 + static DEFINE_IDA(master_ida); struct fsi_slave { @@ -31,8 +33,29 @@ struct fsi_slave { #define to_fsi_slave(d) container_of(d, struct fsi_slave, dev) +/* FSI slave support */ +static int fsi_slave_init(struct fsi_master *master, + int link, uint8_t slave_id) +{ + /* todo: initialise slave device, perform engine scan */ + + return -ENODEV; +} + /* FSI master support */ +static int fsi_master_scan(struct fsi_master *master) +{ + int link, slave_id; + + for (link = 0; link < master->n_links; link++) + for (slave_id = 0; slave_id < FSI_N_SLAVES; slave_id++) + fsi_slave_init(master, link, slave_id); + + return 0; + +} + int fsi_master_register(struct fsi_master *master) { if (!master || !master->dev) @@ -40,6 +63,7 @@ int fsi_master_register(struct fsi_master *master) master->idx = ida_simple_get(&master_ida, 0, 0, GFP_KERNEL); get_device(master->dev); + fsi_master_scan(master); return 0; } EXPORT_SYMBOL_GPL(fsi_master_register);