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|---|---|
| From | Enric Balletbo i Serra <enric.balletbo@collabora.com> |
| 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 | <tsdbk-RK-21@gated-at.bofh.it> (permalink) |
| References | <tsdbj-RK-5@gated-at.bofh.it> |
| X-Mailer | git-send-email 2.9.3 |
| Sender | robomod@news.nic.it |
| List-ID | <linux-kernel.vger.kernel.org> |
| 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 <groeck@chromium.org>, Gwendal Grignou <gwendal@chromium.org>, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, rtc-linux@googlegroups.com, Stephen Barber <smbarber@chromium.org> |
| 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 |
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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>
---
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
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[PATCH v2 0/5] mfd: cros-ec: Some fixes and improvements. Enric Balletbo i Serra <enric.balletbo@collabora.com> - 2017-04-03 18:40 +0200 [PATCH v2 5/5] mfd: cros_ec: add RTC as mfd subdevice Enric Balletbo i Serra <enric.balletbo@collabora.com> - 2017-04-03 18:40 +0200 [PATCH v2 1/5] mfd: cros-ec: Fix host command buffer size Enric Balletbo i Serra <enric.balletbo@collabora.com> - 2017-04-03 18:40 +0200 [PATCH v2 2/5] mfd: cros_ec: Get rid of cros_ec_check_features from cros_ec_dev. Enric Balletbo i Serra <enric.balletbo@collabora.com> - 2017-04-03 18:40 +0200 [PATCH v2 3/5] mfd: cros_ec: Introduce RTC commands and events definitions. Enric Balletbo i Serra <enric.balletbo@collabora.com> - 2017-04-03 18:40 +0200 [PATCH v2 4/5] rtc: cros-ec: add cros-ec-rtc driver. Enric Balletbo i Serra <enric.balletbo@collabora.com> - 2017-04-03 18:40 +0200
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