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Subject[PATCH v5 12/12] mfd: cros_ec: Add throttler sub-device
Date
Instantiate the CrOS EC throttler if it is enabled in the kernel
configuration.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
---
Changes in v5:
- added 'Reviewed-by: Brian Norris <briannorris@chromium.org>' tag

Changes in v4:
- register throttler in cros_ec_dev.c instead of cros_ec.c

Changes in v3:
- patch added to series
---
drivers/mfd/cros_ec_dev.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)

diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c
index eafd06f62a3a..9e56c2793075 100644
--- a/drivers/mfd/cros_ec_dev.c
+++ b/drivers/mfd/cros_ec_dev.c
@@ -383,6 +383,22 @@ static void cros_ec_sensors_register(struct cros_ec_dev *ec)
kfree(msg);
}

+static const struct mfd_cell ec_throttler_cells[] = {
+ { .name = "cros-ec-throttler" }
+};
+
+static void cros_ec_throttler_register(struct cros_ec_dev *ec)
+{
+ int ret;
+
+ ret = mfd_add_devices(ec->dev, 0, ec_throttler_cells,
+ ARRAY_SIZE(ec_throttler_cells),
+ NULL, 0, NULL);
+ if (ret)
+ dev_err(ec->dev,
+ "failed to add cros-ec-throttler device: %d\n", ret);
+}
+
static int ec_device_probe(struct platform_device *pdev)
{
int retval = -ENOMEM;
@@ -422,6 +438,9 @@ static int ec_device_probe(struct platform_device *pdev)
if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE))
cros_ec_sensors_register(ec);

+ if (IS_ENABLED(CONFIG_CROS_EC_THROTTLER))
+ cros_ec_throttler_register(ec);
+
/* Take control of the lightbar from the EC. */
lb_manual_suspend_ctrl(ec, 1);

--
2.18.0.203.gfac676dfb9-goog
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