Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Enric Balletbo i Serra <> | Subject | [PATCH 7/7] mfd: cros_ec: add RTC as mfd subdevice | Date | Fri, 24 Mar 2017 18:44:07 +0100 |
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From: Stephen Barber <smbarber@chromium.org>
If the EC supports RTC host commands, expose an RTC device.
Signed-off-by: Stephen Barber <smbarber@chromium.org> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> --- 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..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 = { .pdata_size = sizeof(pd_p), }; +static const struct mfd_cell ec_rtc_cell = { + .name = "cros-ec-rtc", + .id = -1, +}; + static irqreturn_t ec_irq_thread(int irq, void *data) { struct cros_ec_device *ec_dev = data; @@ -238,6 +243,15 @@ 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, 0, &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
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