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

[Matthias Kaehlcke]

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

Signed-off-by: Matthias Kaehlcke <m...@chromium.org>
---
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