Path: csiph.com!1.us.feeder.erje.net!feeder.erje.net!1.eu.feeder.erje.net!weretis.net!feeder4.news.weretis.net!news.mixmin.net!aioe.org!bofh.it!news.nic.it!robomod From: Enric Balletbo i Serra Newsgroups: linux.kernel Subject: [PATCH v2 5/5] mfd: cros_ec: add RTC as mfd subdevice Date: Mon, 03 Apr 2017 18:40:02 +0200 Message-ID: References: X-Mailer: git-send-email 2.9.3 Sender: robomod@news.nic.it List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Approved: robomod@news.nic.it Lines: 59 Organization: linux.* mail to news gateway X-Original-Cc: martinez.javier@gmail.com, Guenter Roeck , Gwendal Grignou , linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, rtc-linux@googlegroups.com, Stephen Barber X-Original-Date: Mon, 3 Apr 2017 18:35:36 +0200 X-Original-Message-ID: <20170403163536.25634-6-enric.balletbo@collabora.com> X-Original-References: <20170403163536.25634-1-enric.balletbo@collabora.com> X-Original-Sender: linux-kernel-owner@vger.kernel.org Xref: csiph.com linux.kernel:1615398 From: Stephen Barber If the EC supports RTC host commands, expose an RTC device. Signed-off-by: Stephen Barber Signed-off-by: Enric Balletbo i Serra --- Changes since v1: - Use PLATFORM_DEVID_AUTO to add the subdevice. drivers/mfd/cros_ec.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/mfd/cros_ec.c b/drivers/mfd/cros_ec.c index bbc17ab..76874be 100644 --- a/drivers/mfd/cros_ec.c +++ b/drivers/mfd/cros_ec.c @@ -51,6 +51,10 @@ static const struct mfd_cell ec_pd_cell = { .pdata_size = sizeof(pd_p), }; +static const struct mfd_cell ec_rtc_cell = { + .name = "cros-ec-rtc", +}; + static irqreturn_t ec_irq_thread(int irq, void *data) { struct cros_ec_device *ec_dev = data; @@ -238,6 +242,16 @@ static void cros_ec_sensors_register(struct cros_ec_device *ec_dev) kfree(msg); } +static void cros_ec_rtc_register(struct cros_ec_device *ec_dev) +{ + int ret; + + ret = mfd_add_devices(ec_dev->dev, PLATFORM_DEVID_AUTO, &ec_rtc_cell, + 1, NULL, 0, NULL); + 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 = 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); + /* 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. -- 2.9.3