[PATCH v3 12/12] mfd: cros_ec: Add throttler sub-device

From: Matthias Kaehlcke
Date: Thu Jun 14 2018 - 15:47:50 EST


Instantiate the CrOS EC throttler if it is enabled in the kernel
configuration.

Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
---
Changes in v3:
- patch added to series

drivers/mfd/cros_ec.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

diff --git a/drivers/mfd/cros_ec.c b/drivers/mfd/cros_ec.c
index 36156a41499c..5f52b6e2c21a 100644
--- a/drivers/mfd/cros_ec.c
+++ b/drivers/mfd/cros_ec.c
@@ -91,6 +91,10 @@ static int cros_ec_sleep_event(struct cros_ec_device *ec_dev, u8 sleep_event)
return cros_ec_cmd_xfer(ec_dev, &buf.msg);
}

+static const struct mfd_cell ec_throttler_cell = {
+ .name = "cros-ec-throttler",
+};
+
int cros_ec_register(struct cros_ec_device *ec_dev)
{
struct device *dev = ec_dev->dev;
@@ -153,6 +157,18 @@ int cros_ec_register(struct cros_ec_device *ec_dev)
}
}

+ if (IS_ENABLED(CONFIG_CROS_EC_THROTTLER)) {
+ err = mfd_add_devices(ec_dev->dev, PLATFORM_DEVID_AUTO,
+ &ec_throttler_cell, 1, NULL, ec_dev->irq,
+ NULL);
+ if (err) {
+ dev_err(dev,
+ "Failed to register throttler subdevice %d\n",
+ err);
+ return err;
+ }
+ }
+
if (IS_ENABLED(CONFIG_OF) && dev->of_node) {
err = devm_of_platform_populate(dev);
if (err) {
--
2.18.0.rc1.242.g61856ae69a-goog