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(52.135.107.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2052.19; Thu, 11 Jul 2019 10:12:35 +0000 Received: from SN6PR12MB2655.namprd12.prod.outlook.com ([fe80::1dbd:69dc:e782:92b6]) by SN6PR12MB2655.namprd12.prod.outlook.com ([fe80::1dbd:69dc:e782:92b6%6]) with mapi id 15.20.2052.022; Thu, 11 Jul 2019 10:12:35 +0000 From: Vitor Soares To: Lorenzo Bianconi , Vitor Soares Subject: RE: [PATCH v3 3/3] iio: imu: st_lsm6dsx: add i3c basic support for LSM6DSO and LSM6DSR Thread-Topic: [PATCH v3 3/3] iio: imu: st_lsm6dsx: add i3c basic support for LSM6DSO and LSM6DSR Thread-Index: AQHVNy/EafU1/RkKpEi9l4c7Sgkq0qbEQUqAgADyYXA= Date: Thu, 11 Jul 2019 10:12:34 +0000 Message-ID: References: <73955529ae0c31f428221abb88031ab3b4165659.1562767521.git.vitor.soares@synopsys.com> <20190710194405.GA10520@lore-desk-wlan.lan> In-Reply-To: <20190710194405.GA10520@lore-desk-wlan.lan> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: 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2AycSr0UuTnMC8p8WIEnFwkVaIXFlF0ChsJ8EzD1Ui0l+1l5478pDWGUn5QNL439bCad2admfNw9mDo3DGqlp2EUMwIxGQiiZdSuhewF7qr79eJDvJ1r9D48K6o09n0vaceTSwq8d8YXHTLnQDHRXgHsIRt1KMd/AZUKIkflPmjbPLX6ruY1R2DZzeMvAZFyz/m78wPG4kkLA++A0mi7XTEkZrdEyyyLIjfMo91aIko3h+4N1jzXJ1NYYq+IA41iP/pXdpT8RS0WFbUetw1UMez8ngWD17PcBtxyjxpy8cuP13XO8/TkmQe9tCFPqywu8VTg5ONaxRM21FR5mpG4DijpyjtAMDOQ2Y6qpiymcVith4Sb+ph73IThLNxQuK14UQ0puLAmiwt3EdX469NMdcL1lCsvXQ8VV16Yw5iIfho= MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 5db8ea1c-e007-4ba7-8ee2-08d705e84b59 X-MS-Exchange-CrossTenant-originalarrivaltime: 11 Jul 2019 10:12:34.9317 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: c33c9f88-1eb7-4099-9700-16013fd9e8aa X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: soares@synopsys.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR12MB2814 X-OriginatorOrg: synopsys.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190711_031238_984343_67F716A9 X-CRM114-Status: GOOD ( 22.61 ) X-Mailman-Approved-At: Mon, 15 Jul 2019 00:24:58 -0700 X-BeenThere: linux-i3c@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux I3C List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Joao.Pinto@synopsys.com" , "rafael@kernel.org" , "linux-iio@vger.kernel.org" , "gregkh@linuxfoundation.org" , "linux-kernel@vger.kernel.org" , "broonie@kernel.org" , "linux-i3c@lists.infradead.org" , "bbrezillon@knernel.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org Hi Lorenzo, From: Lorenzo Bianconi Date: Wed, Jul 10, 2019 at 20:44:05 > > For today the st_lsm6dsx driver support LSM6DSO and LSM6DSR sensor only in > > spi and i2c mode. > > > > The LSM6DSO and LSM6DSR are also i3c capable so lets give i3c support to > > them. > > Hi Vitor, > > just few comments inline. > > Regards, > Lorenzo > > > > > Signed-off-by: Vitor Soares > > Acked-by: Lorenzo Bianconi > > --- > > Changes in v3: > > Remove unnecessary st_lsm6dsx_i3c_data table used to hold device name > > Use st_lsm6dsx_probe new form > > > > Changes in v2: > > Add support for LSM6DSR > > Set pm_ops to st_lsm6dsx_pm_ops > > > > drivers/iio/imu/st_lsm6dsx/Kconfig | 8 +++- > > drivers/iio/imu/st_lsm6dsx/Makefile | 1 + > > drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c | 61 +++++++++++++++++++++++++++++ > > 3 files changed, 69 insertions(+), 1 deletion(-) > > create mode 100644 drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c > > > > [...] > > > diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c > > new file mode 100644 > > index 0000000..f683754 > > --- /dev/null > > +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c > > @@ -0,0 +1,61 @@ > > +// SPDX-License-Identifier: GPL-2.0 > > +/* > > + * Copyright (c) 2018 Synopsys, Inc. and/or its affiliates. > > + * > > + * Author: Vitor Soares > > + */ > > + > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > +#include > > + > > +#include "st_lsm6dsx.h" > > + > > +static const struct i3c_device_id st_lsm6dsx_i3c_ids[]; > > + > > why do we need this? I guess you can just move st_lsm6dsx_i3c_ids definition here > > > +static const struct regmap_config st_lsm6dsx_i3c_regmap_config = { > > + .reg_bits = 8, > > + .val_bits = 8, > > +}; > > + > > +static int st_lsm6dsx_i3c_probe(struct i3c_device *i3cdev) > > +{ > > + const struct i3c_device_id *id = i3c_device_match_id(i3cdev, > > + st_lsm6dsx_i3c_ids); > > i3c_device_match_id can theoretically fail so is it better to check > return value here? (maybe I am too paranoid :)) > > > + struct regmap *regmap; > > + int hw_id = (int)id->data; > > I guess we do not need this since we use it just in st_lsm6dsx_probe(), > we can just do: > > return st_lsm6dsx_probe(&i3cdev->dev, 0, (int)id->data, regmap); > > + > > + regmap = devm_regmap_init_i3c(i3cdev, &st_lsm6dsx_i3c_regmap_config); > > + if (IS_ERR(regmap)) { > > + dev_err(&i3cdev->dev, "Failed to register i3c regmap %d\n", > > + (int)PTR_ERR(regmap)); > > + return PTR_ERR(regmap); > > + } > > + > > + return st_lsm6dsx_probe(&i3cdev->dev, 0, hw_id, regmap); > > +} > > + > > +static const struct i3c_device_id st_lsm6dsx_i3c_ids[] = { > > + I3C_DEVICE(0x0104, 0x006C, (void *)ST_LSM6DSO_ID), > > + I3C_DEVICE(0x0104, 0x006B, (void *)ST_LSM6DSR_ID), > > + { /* sentinel */ }, > > +}; > > +MODULE_DEVICE_TABLE(i3c, st_lsm6dsx_i3c_ids); > > + > > +static struct i3c_driver st_lsm6dsx_driver = { > > + .driver = { > > + .name = "st_lsm6dsx_i3c", > > + .pm = &st_lsm6dsx_pm_ops, > > + }, > > + .probe = st_lsm6dsx_i3c_probe, > > + .id_table = st_lsm6dsx_i3c_ids, > > +}; > > +module_i3c_driver(st_lsm6dsx_driver); > > + > > +MODULE_AUTHOR("Vitor Soares "); > > +MODULE_DESCRIPTION("STMicroelectronics st_lsm6dsx i3c driver"); > > +MODULE_LICENSE("GPL v2"); > > -- > > 2.7.4 > > Thanks for your comments. I will address them and send a new version. Best regards, Vitor Soares _______________________________________________ linux-i3c mailing list linux-i3c@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-i3c