Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3vg19c5twqzDqYy for ; Sat, 11 Mar 2017 08:48:52 +1100 (AEDT) Received: from pps.filterd (m0098393.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v2ALY6M4041229 for ; Fri, 10 Mar 2017 16:48:35 -0500 Received: from e14.ny.us.ibm.com (e14.ny.us.ibm.com [129.33.205.204]) by mx0a-001b2d01.pphosted.com with ESMTP id 29431dk2fk-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Fri, 10 Mar 2017 16:48:35 -0500 Received: from localhost by e14.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 10 Mar 2017 16:48:34 -0500 Received: from b01cxnp23033.gho.pok.ibm.com (9.57.198.28) by e14.ny.us.ibm.com (146.89.104.201) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Fri, 10 Mar 2017 16:48:31 -0500 Received: from b01ledav004.gho.pok.ibm.com (b01ledav004.gho.pok.ibm.com [9.57.199.109]) by b01cxnp23033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v2ALmVl434603018; Fri, 10 Mar 2017 21:48:31 GMT Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A4C35112057; Fri, 10 Mar 2017 16:48:29 -0500 (EST) Received: from oc3016140333.ibm.com (unknown [9.41.179.225]) by b01ledav004.gho.pok.ibm.com (Postfix) with ESMTP id 47E3A11205F; Fri, 10 Mar 2017 16:48:29 -0500 (EST) From: Eddie James To: openbmc@lists.ozlabs.org Cc: cbostic@linux.vnet.ibm.com, joel@jms.id.au, "Edward A. James" Subject: [RFC linux dev-4.7 1/5] drivers: fsi: Add function to get FSI clock rate Date: Fri, 10 Mar 2017 15:48:22 -0600 X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1489182506-20505-1-git-send-email-eajames@linux.vnet.ibm.com> References: <1489182506-20505-1-git-send-email-eajames@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 17031021-0052-0000-0000-000001989417 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00006759; HX=3.00000240; KW=3.00000007; PH=3.00000004; SC=3.00000206; SDB=6.00832829; UDB=6.00408758; IPR=6.00610417; BA=6.00005202; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00014600; XFM=3.00000013; UTC=2017-03-10 21:48:32 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17031021-0053-0000-0000-00004F03BD26 Message-Id: <1489182506-20505-2-git-send-email-eajames@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-03-10_15:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1702020001 definitions=main-1703100168 X-BeenThere: openbmc@lists.ozlabs.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Development list for OpenBMC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Mar 2017 21:48:53 -0000 From: "Edward A. James" client drivers (I2C, etc) may need to know FSI bus clock rate. Signed-off-by: Edward A. James --- drivers/fsi/fsi-core.c | 7 +++++++ include/linux/fsi.h | 1 + 2 files changed, 8 insertions(+) diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c index 3d382e6..492c9e9 100644 --- a/drivers/fsi/fsi-core.c +++ b/drivers/fsi/fsi-core.c @@ -139,6 +139,13 @@ int fsi_device_peek(struct fsi_device *dev, void *val) return fsi_slave_read(dev->slave, addr, val, sizeof(uint32_t)); } +unsigned long fsi_device_get_clk_rate(struct fsi_device *dev) +{ + /* TODO: get clk from dts */ + return 8333333; +} +EXPORT_SYMBOL_GPL(fsi_device_get_clk_rate); + static void fsi_device_release(struct device *_device) { struct fsi_device *device = to_fsi_dev(_device); diff --git a/include/linux/fsi.h b/include/linux/fsi.h index d22d0c5..57c8fdb 100644 --- a/include/linux/fsi.h +++ b/include/linux/fsi.h @@ -35,6 +35,7 @@ extern int fsi_device_read(struct fsi_device *dev, uint32_t addr, extern int fsi_device_write(struct fsi_device *dev, uint32_t addr, const void *val, size_t size); extern int fsi_device_peek(struct fsi_device *dev, void *val); +extern unsigned long fsi_device_get_clk_rate(struct fsi_device *dev); struct fsi_device_id { u8 engine_type; -- 1.8.3.1