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mfd: cros_ec_dev: Register cros-ec-rtc driver as a subdevice

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Check whether this EC instance has RTC host command support and instatiate
the RTC driver as a subdevice in such case.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Enric Balletbo i Serra 2018-04-18 12:24:01 +02:00 • committed by Lee Jones
parent 44d99d7372
commit 95a4d07fde
1 changed files with 16 additions and 0 deletions
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16
drivers/mfd/cros_ec_dev.c
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@ -383,6 +383,10 @@ error:
kfree(msg); kfree(msg);
} }
static const struct mfd_cell cros_ec_rtc_cells[] = {
{ .name = "cros-ec-rtc" }
};
static int ec_device_probe(struct platform_device *pdev) static int ec_device_probe(struct platform_device *pdev)
{ {
int retval = -ENOMEM; int retval = -ENOMEM;
@ -422,6 +426,18 @@ static int ec_device_probe(struct platform_device *pdev)
if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE)) if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE))
cros_ec_sensors_register(ec); cros_ec_sensors_register(ec);
/* Check whether this EC instance has RTC host command support */
if (cros_ec_check_features(ec, EC_FEATURE_RTC)) {
retval = mfd_add_devices(ec->dev, PLATFORM_DEVID_AUTO,
cros_ec_rtc_cells,
ARRAY_SIZE(cros_ec_rtc_cells),
NULL, 0, NULL);
if (retval)
dev_err(ec->dev,
"failed to add cros-ec-rtc device: %d\n",
retval);
}
/* Take control of the lightbar from the EC. */ /* Take control of the lightbar from the EC. */
lb_manual_suspend_ctrl(ec, 1); lb_manual_suspend_ctrl(ec, 1);