From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753133AbdBAQyw (ORCPT ); Wed, 1 Feb 2017 11:54:52 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:59093 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753117AbdBAQyu (ORCPT ); Wed, 1 Feb 2017 11:54:50 -0500 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 Cc: Jeremy Kerr , Chris Bostic Subject: [PATCH v3 03/18] drivers/fsi: add driver to device matches Date: Wed, 1 Feb 2017 10:53:43 -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: 17020116-0004-0000-0000-000011740425 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 16:54:44 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17020116-0005-0000-0000-00007CAF9AFA Message-Id: <20170201165358.45415-4-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 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jeremy Kerr Driver bind to devices based on the engine types & (optional) versions. Signed-off-by: Jeremy Kerr Signed-off-by: Chris Bostic --- drivers/fsi/fsi-core.c | 21 +++++++++++++++++++++ include/linux/fsi.h | 21 +++++++++++++++++++-- 2 files changed, 40 insertions(+), 2 deletions(-) diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c index 3e45306..3d55bd5 100644 --- a/drivers/fsi/fsi-core.c +++ b/drivers/fsi/fsi-core.c @@ -19,8 +19,29 @@ /* FSI core & Linux bus type definitions */ +static int fsi_bus_match(struct device *dev, struct device_driver *drv) +{ + struct fsi_device *fsi_dev = to_fsi_dev(dev); + struct fsi_driver *fsi_drv = to_fsi_drv(drv); + const struct fsi_device_id *id; + + if (!fsi_drv->id_table) + return 0; + + for (id = fsi_drv->id_table; id->engine_type; id++) { + if (id->engine_type != fsi_dev->engine_type) + continue; + if (id->version == FSI_VERSION_ANY || + id->version == fsi_dev->version) + return 1; + } + + return 0; +} + struct bus_type fsi_bus_type = { .name = "fsi", + .match = fsi_bus_match, }; EXPORT_SYMBOL_GPL(fsi_bus_type); diff --git a/include/linux/fsi.h b/include/linux/fsi.h index f73886a..273cbf6 100644 --- a/include/linux/fsi.h +++ b/include/linux/fsi.h @@ -18,11 +18,28 @@ #include struct fsi_device { - struct device dev; + struct device dev; + u8 engine_type; + u8 version; }; +struct fsi_device_id { + u8 engine_type; + u8 version; +}; + +#define FSI_VERSION_ANY 0 + +#define FSI_DEVICE(t) \ + .engine_type = (t), .version = FSI_VERSION_ANY, + +#define FSI_DEVICE_VERSIONED(t, v) \ + .engine_type = (t), .version = (v), + + struct fsi_driver { - struct device_driver drv; + struct device_driver drv; + const struct fsi_device_id *id_table; }; #define to_fsi_dev(devp) container_of(devp, struct fsi_device, dev) -- 1.8.2.2