From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Sender: rtc-linux@googlegroups.com Received: from mail-wr0-x22b.google.com (mail-wr0-x22b.google.com. [2a00:1450:400c:c0c::22b]) by gmr-mx.google.com with ESMTPS id i76si1103112wmh.1.2017.04.03.07.25.15 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 03 Apr 2017 07:25:15 -0700 (PDT) Received: by mail-wr0-x22b.google.com with SMTP id k6so166621526wre.2 for ; Mon, 03 Apr 2017 07:25:15 -0700 (PDT) Date: Mon, 3 Apr 2017 15:25:12 +0100 From: Lee Jones To: Enric Balletbo i Serra Cc: Jonathan Cameron , Olof Johansson , bleung@chromium.org, martinez.javier@gmail.com, Guenter Roeck , Gwendal Grignou , linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, rtc-linux@googlegroups.com, Stephen Barber Subject: [rtc-linux] Re: [PATCH 7/7] mfd: cros_ec: add RTC as mfd subdevice Message-ID: <20170403142512.dlipwaocizisyipg@dell> References: <20170324174407.25401-1-enric.balletbo@collabora.com> <20170324174407.25401-8-enric.balletbo@collabora.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 In-Reply-To: <20170324174407.25401-8-enric.balletbo@collabora.com> Reply-To: rtc-linux@googlegroups.com List-ID: List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , On Fri, 24 Mar 2017, Enric Balletbo i Serra wrote: > From: Stephen Barber >=20 > If the EC supports RTC host commands, expose an RTC device. >=20 > Signed-off-by: Stephen Barber > Signed-off-by: Enric Balletbo i Serra > --- > drivers/mfd/cros_ec.c | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) >=20 > diff --git a/drivers/mfd/cros_ec.c b/drivers/mfd/cros_ec.c > index bbc17ab..1ff88b1 100644 > --- a/drivers/mfd/cros_ec.c > +++ b/drivers/mfd/cros_ec.c > @@ -51,6 +51,11 @@ static const struct mfd_cell ec_pd_cell =3D { > .pdata_size =3D sizeof(pd_p), > }; > =20 > +static const struct mfd_cell ec_rtc_cell =3D { > + .name =3D "cros-ec-rtc", > + .id =3D -1, Why -1? > +}; > + > static irqreturn_t ec_irq_thread(int irq, void *data) > { > struct cros_ec_device *ec_dev =3D data; > @@ -238,6 +243,15 @@ static void cros_ec_sensors_register(struct cros_ec_= device *ec_dev) > kfree(msg); > } > =20 > +static void cros_ec_rtc_register(struct cros_ec_device *ec_dev) > +{ > + int ret; > + > + ret =3D mfd_add_devices(ec_dev->dev, 0, &ec_rtc_cell, 1, NULL, 0, NULL)= ; Why 0? > + if (ret) > + dev_err(ec_dev->dev, "failed to add EC RTC\n"); > +} > + > int cros_ec_register(struct cros_ec_device *ec_dev) > { > struct device *dev =3D ec_dev->dev; > @@ -287,6 +301,10 @@ int cros_ec_register(struct cros_ec_device *ec_dev) > if (cros_ec_check_features(ec_dev, EC_FEATURE_MOTION_SENSE)) > cros_ec_sensors_register(ec_dev); > =20 > + /* Check whether this EC has RTC support */ > + if (cros_ec_check_features(ec_dev, EC_FEATURE_RTC)) > + cros_ec_rtc_register(ec_dev); > + > if (ec_dev->max_passthru) { > /* > * Register a PD device as well on top of this device. --=20 Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org =E2=94=82 Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog --=20 You received this message because you are subscribed to "rtc-linux". Membership options at http://groups.google.com/group/rtc-linux . Please read http://groups.google.com/group/rtc-linux/web/checklist before submitting a driver. ---=20 You received this message because you are subscribed to the Google Groups "= rtc-linux" group. To unsubscribe from this group and stop receiving emails from it, send an e= mail to rtc-linux+unsubscribe@googlegroups.com. For more options, visit https://groups.google.com/d/optout.